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Social isolation hikes dementia risk in older adults
, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.
After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.
“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.
The findings were published online in the Journal of the American Geriatric Society.
Upstream resources, downstream outcomes
Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.
Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors.
Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”
The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.
They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.
Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.
NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.
Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.
They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.
Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
Wake-up call
Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.
Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.
Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.
Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).
After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.
In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).
Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”
Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
‘Instrumental role’
Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”
Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”
She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”
Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.
The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.
After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.
“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.
The findings were published online in the Journal of the American Geriatric Society.
Upstream resources, downstream outcomes
Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.
Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors.
Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”
The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.
They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.
Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.
NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.
Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.
They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.
Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
Wake-up call
Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.
Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.
Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.
Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).
After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.
In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).
Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”
Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
‘Instrumental role’
Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”
Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”
She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”
Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.
The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.
After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.
“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.
The findings were published online in the Journal of the American Geriatric Society.
Upstream resources, downstream outcomes
Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.
Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors.
Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”
The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.
They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.
Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.
NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.
Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.
They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.
Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
Wake-up call
Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.
Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.
Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.
Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).
After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.
In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).
Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”
Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
‘Instrumental role’
Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”
Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”
She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”
Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.
The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
HRT may prevent Alzheimer’s in high-risk women
new research suggests.
Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.
HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.
“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.
“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.
The findings were published online in Alzheimer’s Research and Therapy.
Personalized approaches
Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.
“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.
HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”
The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”
This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.
To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.
Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.
The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.
The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.
Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
‘Critical window’
The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).
Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).
“This large effect was found only in APOE4 carriers,” the investigators noted.
Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).
In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).
In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.
Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.
“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”
Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.
HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
Risk-benefit ratio
In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”
Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.
He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.
Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.
The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
new research suggests.
Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.
HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.
“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.
“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.
The findings were published online in Alzheimer’s Research and Therapy.
Personalized approaches
Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.
“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.
HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”
The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”
This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.
To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.
Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.
The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.
The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.
Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
‘Critical window’
The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).
Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).
“This large effect was found only in APOE4 carriers,” the investigators noted.
Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).
In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).
In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.
Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.
“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”
Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.
HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
Risk-benefit ratio
In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”
Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.
He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.
Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.
The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
new research suggests.
Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.
HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.
“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.
“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.
The findings were published online in Alzheimer’s Research and Therapy.
Personalized approaches
Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.
“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.
HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”
The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”
This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.
To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.
Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.
The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.
The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.
Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
‘Critical window’
The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).
Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).
“This large effect was found only in APOE4 carriers,” the investigators noted.
Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).
In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).
In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.
Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.
“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”
Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.
HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
Risk-benefit ratio
In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”
Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.
He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.
Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.
The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM ALZHEIMER’S RESEARCH AND THERAPY
Nearly 50% of patients with dementia experience falls
, suggests new research that also identifies multiple risk factors for these falls.
In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.
Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.
Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.
“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.
Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.
The findings were published online in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
No ‘silver bullet’
Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.
Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.
Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.
“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.
Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.
And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.
The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.
During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.
To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.
Of the total sample, most (n = 5,093) did not have dementia.
Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
Fall rates and counterintuitive findings
Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).
In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).
A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.
Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”
This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.
The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.
Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.
They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
No surprise
Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”
Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.
Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.
Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.
The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, suggests new research that also identifies multiple risk factors for these falls.
In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.
Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.
Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.
“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.
Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.
The findings were published online in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
No ‘silver bullet’
Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.
Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.
Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.
“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.
Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.
And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.
The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.
During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.
To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.
Of the total sample, most (n = 5,093) did not have dementia.
Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
Fall rates and counterintuitive findings
Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).
In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).
A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.
Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”
This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.
The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.
Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.
They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
No surprise
Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”
Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.
Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.
Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.
The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
, suggests new research that also identifies multiple risk factors for these falls.
In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.
Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.
Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.
“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.
Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.
The findings were published online in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
No ‘silver bullet’
Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.
Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.
Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.
“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.
Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.
And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.
The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.
During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.
To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.
Of the total sample, most (n = 5,093) did not have dementia.
Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
Fall rates and counterintuitive findings
Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).
In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).
A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.
Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”
This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.
The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.
Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.
They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
No surprise
Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”
Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.
Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.
Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.
The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM ALZHEIMER’S AND DEMENTIA
Hearing loss strongly tied to increased dementia risk
, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.
The findings were published online in JAMA.
Dose dependent effect
For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.
A version of this article first appeared on Medscape.com.
, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.
The findings were published online in JAMA.
Dose dependent effect
For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.
A version of this article first appeared on Medscape.com.
, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.
The findings were published online in JAMA.
Dose dependent effect
For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.
A version of this article first appeared on Medscape.com.
Can 6 minutes of intense cycling put the brakes on Alzheimer’s?
new research suggests.
In a small study of healthy adults, 6 minutes of high-intensity cycling increased circulating levels of brain-derived neurotrophic factor (BDNF) to a significantly greater extent than prolonged light cycling or fasting.
However, the data do not suggest that 6 minutes of high-intensity exercise “wards off dementia,” cautioned lead investigator Travis Gibbons, MSc, PhD candidate in environmental physiology at the University of Otago (New Zealand), Dunedin, and now postdoctoral fellow at the University of British Columbia – Okanagan, Kelowna.
“Like all science, this is just a small piece that supports a potential mechanistic role for how exercise might improve brain health,” Dr. Gibbons told this news organization.
The findings were published online in the Journal of Physiology.
Targeting BDNF
Both intermittent fasting and exercise have previously been shown to have potent neuroprotective effects; and an acute upregulation of BDNF appears to be a common mechanistic link.
To tease apart the influence of fasting and exercise on BDNF production, Dr. Gibbons and colleagues studied 12 aerobically fit, healthy men (n = 6) and women (n = 6) aged 20-40 years.
In a study that employed a repeated-measures crossover design, they assessed circulating BDNF levels after a 20-hour fast, prolonged (90-min) light cycling, short (6-min) high-intensity cycling, and combined fasting and exercise.
Six minutes of high-intensity exercise appeared to be the most efficient way to increase BDNF.
Fasting for 20 hours led to a ninefold increase in ketone body delivery to the brain but had no effect on any metric of BDNF in peripheral circulation at rest or during exercise.
Six minutes of high-intensity exercise increased every metric of circulating BDNF four to five times more than prolonged low-intensity exercise.
In addition, the increase in plasma-derived BDNF correlated with a sixfold increase in circulating lactate irrespective of feeding or fasting state.
Lactate delivery?
“My leading theory is that, during and following intense exercise, lactate produced by muscles is delivered and consumed by the brain,” Dr. Gibbons noted.
“It takes high-intensity exercise to provoke this ‘cerebral substrate switch’ from glucose to lactate. Critically, this cerebral substrate switch has been shown to contribute to the early processes that upregulate BDNF production in the brain,” he said.
However, “Whether this translates to ‘warding off dementia’ is not clear,” Dr. Gibbons added.
The study also suggests that increases in plasma volume and platelet concentration appear to play a role in concentrating BDNF in the circulation during exercise.
The investigators note that BDNF and other neurotrophic-based pharmaceutical therapies have shown “great promise” in slowing and even arresting neurodegenerative processes in animals, but attempts to harness the protective power of BDNF in human neurodegeneration have thus far failed.
“Whether episodically upregulating BDNF production with intense exercise is an effective strategy to curb age-related cognitive decline in humans is unknown, but animal models indicate that it is and that BDNF plays a primary role,” the researchers write.
Funding for the study was provided by the Healthcare Otago Charitable Trust. The investigators have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
new research suggests.
In a small study of healthy adults, 6 minutes of high-intensity cycling increased circulating levels of brain-derived neurotrophic factor (BDNF) to a significantly greater extent than prolonged light cycling or fasting.
However, the data do not suggest that 6 minutes of high-intensity exercise “wards off dementia,” cautioned lead investigator Travis Gibbons, MSc, PhD candidate in environmental physiology at the University of Otago (New Zealand), Dunedin, and now postdoctoral fellow at the University of British Columbia – Okanagan, Kelowna.
“Like all science, this is just a small piece that supports a potential mechanistic role for how exercise might improve brain health,” Dr. Gibbons told this news organization.
The findings were published online in the Journal of Physiology.
Targeting BDNF
Both intermittent fasting and exercise have previously been shown to have potent neuroprotective effects; and an acute upregulation of BDNF appears to be a common mechanistic link.
To tease apart the influence of fasting and exercise on BDNF production, Dr. Gibbons and colleagues studied 12 aerobically fit, healthy men (n = 6) and women (n = 6) aged 20-40 years.
In a study that employed a repeated-measures crossover design, they assessed circulating BDNF levels after a 20-hour fast, prolonged (90-min) light cycling, short (6-min) high-intensity cycling, and combined fasting and exercise.
Six minutes of high-intensity exercise appeared to be the most efficient way to increase BDNF.
Fasting for 20 hours led to a ninefold increase in ketone body delivery to the brain but had no effect on any metric of BDNF in peripheral circulation at rest or during exercise.
Six minutes of high-intensity exercise increased every metric of circulating BDNF four to five times more than prolonged low-intensity exercise.
In addition, the increase in plasma-derived BDNF correlated with a sixfold increase in circulating lactate irrespective of feeding or fasting state.
Lactate delivery?
“My leading theory is that, during and following intense exercise, lactate produced by muscles is delivered and consumed by the brain,” Dr. Gibbons noted.
“It takes high-intensity exercise to provoke this ‘cerebral substrate switch’ from glucose to lactate. Critically, this cerebral substrate switch has been shown to contribute to the early processes that upregulate BDNF production in the brain,” he said.
However, “Whether this translates to ‘warding off dementia’ is not clear,” Dr. Gibbons added.
The study also suggests that increases in plasma volume and platelet concentration appear to play a role in concentrating BDNF in the circulation during exercise.
The investigators note that BDNF and other neurotrophic-based pharmaceutical therapies have shown “great promise” in slowing and even arresting neurodegenerative processes in animals, but attempts to harness the protective power of BDNF in human neurodegeneration have thus far failed.
“Whether episodically upregulating BDNF production with intense exercise is an effective strategy to curb age-related cognitive decline in humans is unknown, but animal models indicate that it is and that BDNF plays a primary role,” the researchers write.
Funding for the study was provided by the Healthcare Otago Charitable Trust. The investigators have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
new research suggests.
In a small study of healthy adults, 6 minutes of high-intensity cycling increased circulating levels of brain-derived neurotrophic factor (BDNF) to a significantly greater extent than prolonged light cycling or fasting.
However, the data do not suggest that 6 minutes of high-intensity exercise “wards off dementia,” cautioned lead investigator Travis Gibbons, MSc, PhD candidate in environmental physiology at the University of Otago (New Zealand), Dunedin, and now postdoctoral fellow at the University of British Columbia – Okanagan, Kelowna.
“Like all science, this is just a small piece that supports a potential mechanistic role for how exercise might improve brain health,” Dr. Gibbons told this news organization.
The findings were published online in the Journal of Physiology.
Targeting BDNF
Both intermittent fasting and exercise have previously been shown to have potent neuroprotective effects; and an acute upregulation of BDNF appears to be a common mechanistic link.
To tease apart the influence of fasting and exercise on BDNF production, Dr. Gibbons and colleagues studied 12 aerobically fit, healthy men (n = 6) and women (n = 6) aged 20-40 years.
In a study that employed a repeated-measures crossover design, they assessed circulating BDNF levels after a 20-hour fast, prolonged (90-min) light cycling, short (6-min) high-intensity cycling, and combined fasting and exercise.
Six minutes of high-intensity exercise appeared to be the most efficient way to increase BDNF.
Fasting for 20 hours led to a ninefold increase in ketone body delivery to the brain but had no effect on any metric of BDNF in peripheral circulation at rest or during exercise.
Six minutes of high-intensity exercise increased every metric of circulating BDNF four to five times more than prolonged low-intensity exercise.
In addition, the increase in plasma-derived BDNF correlated with a sixfold increase in circulating lactate irrespective of feeding or fasting state.
Lactate delivery?
“My leading theory is that, during and following intense exercise, lactate produced by muscles is delivered and consumed by the brain,” Dr. Gibbons noted.
“It takes high-intensity exercise to provoke this ‘cerebral substrate switch’ from glucose to lactate. Critically, this cerebral substrate switch has been shown to contribute to the early processes that upregulate BDNF production in the brain,” he said.
However, “Whether this translates to ‘warding off dementia’ is not clear,” Dr. Gibbons added.
The study also suggests that increases in plasma volume and platelet concentration appear to play a role in concentrating BDNF in the circulation during exercise.
The investigators note that BDNF and other neurotrophic-based pharmaceutical therapies have shown “great promise” in slowing and even arresting neurodegenerative processes in animals, but attempts to harness the protective power of BDNF in human neurodegeneration have thus far failed.
“Whether episodically upregulating BDNF production with intense exercise is an effective strategy to curb age-related cognitive decline in humans is unknown, but animal models indicate that it is and that BDNF plays a primary role,” the researchers write.
Funding for the study was provided by the Healthcare Otago Charitable Trust. The investigators have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM THE JOURNAL OF PHYSIOLOGY
Early retirement and the terrible, horrible, no good, very bad cognitive decline
The ‘scheme’ in the name should have been a clue
Retirement. The shiny reward to a lifetime’s worth of working and saving. We’re all literally working to get there, some of us more to get there early, but current research reveals that early retirement isn’t the relaxing finish line we dream about, cognitively speaking.
Researchers at Binghamton (N.Y.) University set out to examine just how retirement plans affect cognitive performance. They started off with China’s New Rural Pension Scheme (scheme probably has a less negative connotation in Chinese), a plan that financially aids the growing rural retirement-age population in the country. Then they looked at data from the Chinese Health and Retirement Longitudinal Survey, which tests cognition with a focus on episodic memory and parts of intact mental status.
What they found was the opposite of what you would expect out of retirees with nothing but time on their hands.
The pension program, which had been in place for almost a decade, led to delayed recall, especially among women, supporting “the mental retirement hypothesis that decreased mental activity results in worsening cognitive skills,” the investigators said in a written statement.
There also was a drop in social engagement, with lower rates of volunteering and social interaction than people who didn’t receive the pension. Some behaviors, like regular alcohol consumption, did improve over the previous year, as did total health in general, but “the adverse effects of early retirement on mental and social engagement significantly outweigh the program’s protective effect on various health behaviors,” Plamen Nikolov, PhD, said about his research.
So if you’re looking to retire early, don’t skimp on the crosswords and the bingo nights. Stay busy in a good way. Your brain will thank you.
Indiana Jones and the First Smallpox Ancestor
Smallpox was, not that long ago, one of the most devastating diseases known to humanity, killing 300 million people in the 20th century alone. Eradicating it has to be one of medicine’s crowning achievements. Now it can only be found in museums, which is where it belongs.
Here’s the thing with smallpox though: For all it did to us, we know frustratingly little about where it came from. Until very recently, the best available genetic evidence placed its emergence in the 17th century, which clashes with historical data. You know what that means, right? It’s time to dig out the fedora and whip, cue the music, and dig into a recently published study spanning continents in search of the mythical smallpox origin story.
We pick up in 2020, when genetic evidence definitively showed smallpox in a Viking burial site, moving the disease’s emergence a thousand years earlier. Which is all well and good, but there’s solid visual evidence that Egyptian pharaohs were dying of smallpox, as their bodies show the signature scarring. Historians were pretty sure smallpox went back about 4,000 years, but there was no genetic material to prove it.
Since there aren’t any 4,000-year-old smallpox germs laying around, the researchers chose to attack the problem another way – by burning down a Venetian catacomb, er, conducting a analysis of historical smallpox genetics to find the virus’s origin. By analyzing the genomes of various strains at different periods of time, they were able to determine that the variola virus had a definitive common ancestor. Some of the genetic components in the Viking-age sample, for example, persisted until the 18th century.
Armed with this information, the scientists determined that the first smallpox ancestor emerged about 3,800 years ago. That’s very close to the historians’ estimate for the disease’s emergence. Proof at last of smallpox’s truly ancient origin. One might even say the researchers chose wisely.
The only hall of fame that really matters
LOTME loves the holiday season – the food, the gifts, the radio stations that play nothing but Christmas music – but for us the most wonderful time of the year comes just a bit later. No, it’s not our annual Golden Globes slap bet. Nope, not even the “excitement” of the College Football Playoff National Championship. It’s time for the National Inventors Hall of Fame to announce its latest inductees, and we could hardly sleep last night after putting cookies out for Thomas Edison. Fasten your seatbelts!
- Robert G. Bryant is a NASA chemist who developed Langley Research Center-Soluble Imide (yes, that’s the actual name) a polymer used as an insulation material for leads in implantable cardiac resynchronization therapy devices.
- Rory Cooper is a biomedical engineer who was paralyzed in a bicycle accident. His work has improved manual and electric wheelchairs and advanced the health, mobility, and social inclusion of people with disabilities and older adults. He is also the first NIHF inductee named Rory.
- Katalin Karikó, a biochemist, and Drew Weissman, an immunologist, “discovered how to enable messenger ribonucleic acid (mRNA) to enter cells without triggering the body’s immune system,” NIHF said, and that laid the foundation for the mRNA COVID-19 vaccines developed by Pfizer-BioNTech and Moderna. That, of course, led to the antivax movement, which has provided so much LOTME fodder over the years.
- Angela Hartley Brodie was a biochemist who discovered and developed a class of drugs called aromatase inhibitors, which can stop the production of hormones that fuel cancer cell growth and are used to treat breast cancer in 500,000 women worldwide each year.
We can’t mention all of the inductees for 2023 (our editor made that very clear), but we would like to offer a special shout-out to brothers Cyril (the first Cyril in the NIHF, by the way) and Louis Keller, who invented the world’s first compact loader, which eventually became the Bobcat skid-steer loader. Not really medical, you’re probably thinking, but we’re sure that someone, somewhere, at some time, used one to build a hospital, landscape a hospital, or clean up after the demolition of a hospital.
The ‘scheme’ in the name should have been a clue
Retirement. The shiny reward to a lifetime’s worth of working and saving. We’re all literally working to get there, some of us more to get there early, but current research reveals that early retirement isn’t the relaxing finish line we dream about, cognitively speaking.
Researchers at Binghamton (N.Y.) University set out to examine just how retirement plans affect cognitive performance. They started off with China’s New Rural Pension Scheme (scheme probably has a less negative connotation in Chinese), a plan that financially aids the growing rural retirement-age population in the country. Then they looked at data from the Chinese Health and Retirement Longitudinal Survey, which tests cognition with a focus on episodic memory and parts of intact mental status.
What they found was the opposite of what you would expect out of retirees with nothing but time on their hands.
The pension program, which had been in place for almost a decade, led to delayed recall, especially among women, supporting “the mental retirement hypothesis that decreased mental activity results in worsening cognitive skills,” the investigators said in a written statement.
There also was a drop in social engagement, with lower rates of volunteering and social interaction than people who didn’t receive the pension. Some behaviors, like regular alcohol consumption, did improve over the previous year, as did total health in general, but “the adverse effects of early retirement on mental and social engagement significantly outweigh the program’s protective effect on various health behaviors,” Plamen Nikolov, PhD, said about his research.
So if you’re looking to retire early, don’t skimp on the crosswords and the bingo nights. Stay busy in a good way. Your brain will thank you.
Indiana Jones and the First Smallpox Ancestor
Smallpox was, not that long ago, one of the most devastating diseases known to humanity, killing 300 million people in the 20th century alone. Eradicating it has to be one of medicine’s crowning achievements. Now it can only be found in museums, which is where it belongs.
Here’s the thing with smallpox though: For all it did to us, we know frustratingly little about where it came from. Until very recently, the best available genetic evidence placed its emergence in the 17th century, which clashes with historical data. You know what that means, right? It’s time to dig out the fedora and whip, cue the music, and dig into a recently published study spanning continents in search of the mythical smallpox origin story.
We pick up in 2020, when genetic evidence definitively showed smallpox in a Viking burial site, moving the disease’s emergence a thousand years earlier. Which is all well and good, but there’s solid visual evidence that Egyptian pharaohs were dying of smallpox, as their bodies show the signature scarring. Historians were pretty sure smallpox went back about 4,000 years, but there was no genetic material to prove it.
Since there aren’t any 4,000-year-old smallpox germs laying around, the researchers chose to attack the problem another way – by burning down a Venetian catacomb, er, conducting a analysis of historical smallpox genetics to find the virus’s origin. By analyzing the genomes of various strains at different periods of time, they were able to determine that the variola virus had a definitive common ancestor. Some of the genetic components in the Viking-age sample, for example, persisted until the 18th century.
Armed with this information, the scientists determined that the first smallpox ancestor emerged about 3,800 years ago. That’s very close to the historians’ estimate for the disease’s emergence. Proof at last of smallpox’s truly ancient origin. One might even say the researchers chose wisely.
The only hall of fame that really matters
LOTME loves the holiday season – the food, the gifts, the radio stations that play nothing but Christmas music – but for us the most wonderful time of the year comes just a bit later. No, it’s not our annual Golden Globes slap bet. Nope, not even the “excitement” of the College Football Playoff National Championship. It’s time for the National Inventors Hall of Fame to announce its latest inductees, and we could hardly sleep last night after putting cookies out for Thomas Edison. Fasten your seatbelts!
- Robert G. Bryant is a NASA chemist who developed Langley Research Center-Soluble Imide (yes, that’s the actual name) a polymer used as an insulation material for leads in implantable cardiac resynchronization therapy devices.
- Rory Cooper is a biomedical engineer who was paralyzed in a bicycle accident. His work has improved manual and electric wheelchairs and advanced the health, mobility, and social inclusion of people with disabilities and older adults. He is also the first NIHF inductee named Rory.
- Katalin Karikó, a biochemist, and Drew Weissman, an immunologist, “discovered how to enable messenger ribonucleic acid (mRNA) to enter cells without triggering the body’s immune system,” NIHF said, and that laid the foundation for the mRNA COVID-19 vaccines developed by Pfizer-BioNTech and Moderna. That, of course, led to the antivax movement, which has provided so much LOTME fodder over the years.
- Angela Hartley Brodie was a biochemist who discovered and developed a class of drugs called aromatase inhibitors, which can stop the production of hormones that fuel cancer cell growth and are used to treat breast cancer in 500,000 women worldwide each year.
We can’t mention all of the inductees for 2023 (our editor made that very clear), but we would like to offer a special shout-out to brothers Cyril (the first Cyril in the NIHF, by the way) and Louis Keller, who invented the world’s first compact loader, which eventually became the Bobcat skid-steer loader. Not really medical, you’re probably thinking, but we’re sure that someone, somewhere, at some time, used one to build a hospital, landscape a hospital, or clean up after the demolition of a hospital.
The ‘scheme’ in the name should have been a clue
Retirement. The shiny reward to a lifetime’s worth of working and saving. We’re all literally working to get there, some of us more to get there early, but current research reveals that early retirement isn’t the relaxing finish line we dream about, cognitively speaking.
Researchers at Binghamton (N.Y.) University set out to examine just how retirement plans affect cognitive performance. They started off with China’s New Rural Pension Scheme (scheme probably has a less negative connotation in Chinese), a plan that financially aids the growing rural retirement-age population in the country. Then they looked at data from the Chinese Health and Retirement Longitudinal Survey, which tests cognition with a focus on episodic memory and parts of intact mental status.
What they found was the opposite of what you would expect out of retirees with nothing but time on their hands.
The pension program, which had been in place for almost a decade, led to delayed recall, especially among women, supporting “the mental retirement hypothesis that decreased mental activity results in worsening cognitive skills,” the investigators said in a written statement.
There also was a drop in social engagement, with lower rates of volunteering and social interaction than people who didn’t receive the pension. Some behaviors, like regular alcohol consumption, did improve over the previous year, as did total health in general, but “the adverse effects of early retirement on mental and social engagement significantly outweigh the program’s protective effect on various health behaviors,” Plamen Nikolov, PhD, said about his research.
So if you’re looking to retire early, don’t skimp on the crosswords and the bingo nights. Stay busy in a good way. Your brain will thank you.
Indiana Jones and the First Smallpox Ancestor
Smallpox was, not that long ago, one of the most devastating diseases known to humanity, killing 300 million people in the 20th century alone. Eradicating it has to be one of medicine’s crowning achievements. Now it can only be found in museums, which is where it belongs.
Here’s the thing with smallpox though: For all it did to us, we know frustratingly little about where it came from. Until very recently, the best available genetic evidence placed its emergence in the 17th century, which clashes with historical data. You know what that means, right? It’s time to dig out the fedora and whip, cue the music, and dig into a recently published study spanning continents in search of the mythical smallpox origin story.
We pick up in 2020, when genetic evidence definitively showed smallpox in a Viking burial site, moving the disease’s emergence a thousand years earlier. Which is all well and good, but there’s solid visual evidence that Egyptian pharaohs were dying of smallpox, as their bodies show the signature scarring. Historians were pretty sure smallpox went back about 4,000 years, but there was no genetic material to prove it.
Since there aren’t any 4,000-year-old smallpox germs laying around, the researchers chose to attack the problem another way – by burning down a Venetian catacomb, er, conducting a analysis of historical smallpox genetics to find the virus’s origin. By analyzing the genomes of various strains at different periods of time, they were able to determine that the variola virus had a definitive common ancestor. Some of the genetic components in the Viking-age sample, for example, persisted until the 18th century.
Armed with this information, the scientists determined that the first smallpox ancestor emerged about 3,800 years ago. That’s very close to the historians’ estimate for the disease’s emergence. Proof at last of smallpox’s truly ancient origin. One might even say the researchers chose wisely.
The only hall of fame that really matters
LOTME loves the holiday season – the food, the gifts, the radio stations that play nothing but Christmas music – but for us the most wonderful time of the year comes just a bit later. No, it’s not our annual Golden Globes slap bet. Nope, not even the “excitement” of the College Football Playoff National Championship. It’s time for the National Inventors Hall of Fame to announce its latest inductees, and we could hardly sleep last night after putting cookies out for Thomas Edison. Fasten your seatbelts!
- Robert G. Bryant is a NASA chemist who developed Langley Research Center-Soluble Imide (yes, that’s the actual name) a polymer used as an insulation material for leads in implantable cardiac resynchronization therapy devices.
- Rory Cooper is a biomedical engineer who was paralyzed in a bicycle accident. His work has improved manual and electric wheelchairs and advanced the health, mobility, and social inclusion of people with disabilities and older adults. He is also the first NIHF inductee named Rory.
- Katalin Karikó, a biochemist, and Drew Weissman, an immunologist, “discovered how to enable messenger ribonucleic acid (mRNA) to enter cells without triggering the body’s immune system,” NIHF said, and that laid the foundation for the mRNA COVID-19 vaccines developed by Pfizer-BioNTech and Moderna. That, of course, led to the antivax movement, which has provided so much LOTME fodder over the years.
- Angela Hartley Brodie was a biochemist who discovered and developed a class of drugs called aromatase inhibitors, which can stop the production of hormones that fuel cancer cell growth and are used to treat breast cancer in 500,000 women worldwide each year.
We can’t mention all of the inductees for 2023 (our editor made that very clear), but we would like to offer a special shout-out to brothers Cyril (the first Cyril in the NIHF, by the way) and Louis Keller, who invented the world’s first compact loader, which eventually became the Bobcat skid-steer loader. Not really medical, you’re probably thinking, but we’re sure that someone, somewhere, at some time, used one to build a hospital, landscape a hospital, or clean up after the demolition of a hospital.
Some BP meds tied to significantly lower risk for dementia, Alzheimer’s
Antihypertensive medications that stimulate rather than inhibit type 2 and 4 angiotensin II receptors can lower the rate of dementia among new users of these medications, new research suggests.
Results from a cohort study of more than 57,000 older Medicare beneficiaries showed that the initiation of antihypertensives that stimulate the receptors was linked to a 16% lower risk for incident Alzheimer’s disease and related dementia (ADRD) and an 18% lower risk for vascular dementia compared with those that inhibit the receptors.
“Achieving appropriate blood pressure control is essential for maximizing brain health, and this promising research suggests certain antihypertensives could yield brain benefit compared to others,” lead study author Zachary A. Marcum, PharmD, PhD, associate professor, University of Washington School of Pharmacy, Seattle, told this news organization.
The findings were published online in JAMA Network Open.
Medicare beneficiaries
Previous observational studies showed that antihypertensive medications that stimulate type 2 and 4 angiotensin II receptors, in comparison with those that don’t, were associated with lower rates of dementia. However, those studies included individuals with prevalent hypertension and were relatively small.
The new retrospective cohort study included a random sample of 57,773 Medicare beneficiaries aged at least 65 years with new-onset hypertension. The mean age of participants was 73.8 years, 62.9% were women, and 86.9% were White.
Over the course of the study, some participants filled at least one prescription for a stimulating angiotensin II receptor type 2 and 4, such as angiotensin II receptor type 1 blockers, dihydropyridine calcium channel blockers, and thiazide diuretics.
Others participants filled a prescription for an inhibiting type 2 and 4 angiotensin II receptors, including angiotensin-converting enzyme (ACE) inhibitors, beta-blockers, and nondihydropyridine calcium channel blockers.
“All these medications lower blood pressure, but they do it in different ways,” said Dr. Marcum.
The researchers were interested in the varying activity of these drugs at the type 2 and 4 angiotensin II receptors.
For each 30-day interval, they categorized beneficiaries into four groups: a stimulating medication group (n = 4,879) consisting of individuals mostly taking stimulating antihypertensives; an inhibiting medication group (n = 10,303) that mostly included individuals prescribed this type of antihypertensive; a mixed group (n = 2,179) that included a combination of the first two classifications; and a nonuser group (n = 40,413) of individuals who were not using either type of drug.
The primary outcome was time to first occurrence of ADRD. The secondary outcome was time to first occurrence of vascular dementia.
Researchers controlled for cardiovascular risk factors and sociodemographic characteristics, such as age, sex, race/ethnicity, and receipt of low-income subsidy.
Unanswered questions
After adjustments, results showed that initiation of an antihypertensive medication regimen that exclusively stimulates, rather than inhibits, type 2 and 4 angiotensin II receptors was associated with a 16% lower risk for incident ADRD over a follow-up of just under 7 years (hazard ratio, 0.84; 95% confidence interval, 0.79-0.90; P < .001).
The mixed regimen was also associated with statistically significant (P = .001) reduced odds of ADRD compared with the inhibiting medications.
As for vascular dementia, use of stimulating vs. inhibiting medications was associated with an 18% lower risk (HR, 0.82; 95% CI, 0.69-0.96; P = .02).
Again, use of the mixed regimen was associated with reduced risk of vascular dementia compared with the inhibiting medications (P = .03).
A variety of potential mechanisms might explain the superiority of stimulating agents when it comes to dementia risk, said Dr. Marcum. These could include, for example, increased blood flow to the brain and reduced amyloid.
“But more mechanistic work is needed as well as evaluation of dose responses, because that’s not something we looked at in this study,” Dr. Marcum said. “There are still a lot of unanswered questions.”
Stimulators instead of inhibitors?
The results of the current analysis come on the heels of some previous work showing the benefits of lowering blood pressure. For example, the Systolic Blood Pressure Intervention Trial (SPRINT) showed that targeting a systolic blood pressure below 120 mm Hg significantly reduces risk for heart disease, stroke, and death from these diseases.
But in contrast to previous research, the current study included only beneficiaries with incident hypertension and new use of antihypertensive medications, and it adjusted for time-varying confounding.
Prescribing stimulating instead of inhibiting treatments could make a difference at the population level, Dr. Marcum noted.
“If we could shift the prescribing a little bit from inhibiting to stimulating, that could possibly reduce dementia risk,” he said.
However, “we’re not suggesting [that all patients] have their regimen switched,” he added.
That’s because inhibiting medications still have an important place in the antihypertensive treatment armamentarium, Dr. Marcum noted. As an example, beta-blockers are used post heart attack.
As well, factors such as cost and side effects should be taken into consideration when prescribing an antihypertensive drug.
The new results could be used to set up a comparison in a future randomized controlled trial that would provide the strongest evidence for estimating causal effects of treatments, said Dr. Marcum.
‘More convincing’
Carlos G. Santos-Gallego, MD, Icahn School of Medicine at Mount Sinai, New York, said the study is “more convincing” than previous related research, as it has a larger sample size and a longer follow-up.
“And the exquisite statistical analysis gives more robustness, more solidity, to the hypothesis that drugs that stimulate type 2 and 4 angiotensin II receptors might be protective for dementia,” said Dr. Santos-Gallego, who was not involved with the research.
However, he noted that the retrospective study had some limitations, including the underdiagnosis of dementia. “The diagnosis of dementia is, honestly, very poorly done in the clinical setting,” he said.
As well, the study could be subject to “confounding by indication,” Dr. Santos-Gallego said. “There could be a third variable, another confounding factor, that’s responsible both for the dementia and for the prescription of these drugs,” he added.
For example, he noted that comorbidities such as atrial fibrillation, myocardial infarction, and heart failure might increase the risk of dementia.
He agreed with the investigators that a randomized clinical trial would address these limitations. “All comorbidities would be equally shared” in the randomized groups, and all participants would be given “a specific test for dementia at the same time,” Dr. Santos-Gallego said.
Still, he noted that the new results are in keeping with hypertension guidelines that recommend stimulating drugs.
“This trial definitely shows that the current hypertension guidelines are good treatment for our patients, not only to control blood pressure and not only to prevent infarction to prevent stroke but also to prevent dementia,” said Dr. Santos-Gallego.
Also commenting for this news organization, Heather Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, said the new data provide “clarity” on why previous research had differing results on the effect of antihypertensives on cognition.
Among the caveats of this new analysis is that “it’s unclear if the demographics in this study are fully representative of Medicare beneficiaries,” said Dr. Snyder.
She, too, said a clinical trial is important “to understand if there is a preventative and/or treatment potential in the medications that stimulate type 2 and 4 angiotensin II receptors.”
The study received funding from the National Institute on Aging. Dr. Marcum and Dr. Santos-Gallego have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Antihypertensive medications that stimulate rather than inhibit type 2 and 4 angiotensin II receptors can lower the rate of dementia among new users of these medications, new research suggests.
Results from a cohort study of more than 57,000 older Medicare beneficiaries showed that the initiation of antihypertensives that stimulate the receptors was linked to a 16% lower risk for incident Alzheimer’s disease and related dementia (ADRD) and an 18% lower risk for vascular dementia compared with those that inhibit the receptors.
“Achieving appropriate blood pressure control is essential for maximizing brain health, and this promising research suggests certain antihypertensives could yield brain benefit compared to others,” lead study author Zachary A. Marcum, PharmD, PhD, associate professor, University of Washington School of Pharmacy, Seattle, told this news organization.
The findings were published online in JAMA Network Open.
Medicare beneficiaries
Previous observational studies showed that antihypertensive medications that stimulate type 2 and 4 angiotensin II receptors, in comparison with those that don’t, were associated with lower rates of dementia. However, those studies included individuals with prevalent hypertension and were relatively small.
The new retrospective cohort study included a random sample of 57,773 Medicare beneficiaries aged at least 65 years with new-onset hypertension. The mean age of participants was 73.8 years, 62.9% were women, and 86.9% were White.
Over the course of the study, some participants filled at least one prescription for a stimulating angiotensin II receptor type 2 and 4, such as angiotensin II receptor type 1 blockers, dihydropyridine calcium channel blockers, and thiazide diuretics.
Others participants filled a prescription for an inhibiting type 2 and 4 angiotensin II receptors, including angiotensin-converting enzyme (ACE) inhibitors, beta-blockers, and nondihydropyridine calcium channel blockers.
“All these medications lower blood pressure, but they do it in different ways,” said Dr. Marcum.
The researchers were interested in the varying activity of these drugs at the type 2 and 4 angiotensin II receptors.
For each 30-day interval, they categorized beneficiaries into four groups: a stimulating medication group (n = 4,879) consisting of individuals mostly taking stimulating antihypertensives; an inhibiting medication group (n = 10,303) that mostly included individuals prescribed this type of antihypertensive; a mixed group (n = 2,179) that included a combination of the first two classifications; and a nonuser group (n = 40,413) of individuals who were not using either type of drug.
The primary outcome was time to first occurrence of ADRD. The secondary outcome was time to first occurrence of vascular dementia.
Researchers controlled for cardiovascular risk factors and sociodemographic characteristics, such as age, sex, race/ethnicity, and receipt of low-income subsidy.
Unanswered questions
After adjustments, results showed that initiation of an antihypertensive medication regimen that exclusively stimulates, rather than inhibits, type 2 and 4 angiotensin II receptors was associated with a 16% lower risk for incident ADRD over a follow-up of just under 7 years (hazard ratio, 0.84; 95% confidence interval, 0.79-0.90; P < .001).
The mixed regimen was also associated with statistically significant (P = .001) reduced odds of ADRD compared with the inhibiting medications.
As for vascular dementia, use of stimulating vs. inhibiting medications was associated with an 18% lower risk (HR, 0.82; 95% CI, 0.69-0.96; P = .02).
Again, use of the mixed regimen was associated with reduced risk of vascular dementia compared with the inhibiting medications (P = .03).
A variety of potential mechanisms might explain the superiority of stimulating agents when it comes to dementia risk, said Dr. Marcum. These could include, for example, increased blood flow to the brain and reduced amyloid.
“But more mechanistic work is needed as well as evaluation of dose responses, because that’s not something we looked at in this study,” Dr. Marcum said. “There are still a lot of unanswered questions.”
Stimulators instead of inhibitors?
The results of the current analysis come on the heels of some previous work showing the benefits of lowering blood pressure. For example, the Systolic Blood Pressure Intervention Trial (SPRINT) showed that targeting a systolic blood pressure below 120 mm Hg significantly reduces risk for heart disease, stroke, and death from these diseases.
But in contrast to previous research, the current study included only beneficiaries with incident hypertension and new use of antihypertensive medications, and it adjusted for time-varying confounding.
Prescribing stimulating instead of inhibiting treatments could make a difference at the population level, Dr. Marcum noted.
“If we could shift the prescribing a little bit from inhibiting to stimulating, that could possibly reduce dementia risk,” he said.
However, “we’re not suggesting [that all patients] have their regimen switched,” he added.
That’s because inhibiting medications still have an important place in the antihypertensive treatment armamentarium, Dr. Marcum noted. As an example, beta-blockers are used post heart attack.
As well, factors such as cost and side effects should be taken into consideration when prescribing an antihypertensive drug.
The new results could be used to set up a comparison in a future randomized controlled trial that would provide the strongest evidence for estimating causal effects of treatments, said Dr. Marcum.
‘More convincing’
Carlos G. Santos-Gallego, MD, Icahn School of Medicine at Mount Sinai, New York, said the study is “more convincing” than previous related research, as it has a larger sample size and a longer follow-up.
“And the exquisite statistical analysis gives more robustness, more solidity, to the hypothesis that drugs that stimulate type 2 and 4 angiotensin II receptors might be protective for dementia,” said Dr. Santos-Gallego, who was not involved with the research.
However, he noted that the retrospective study had some limitations, including the underdiagnosis of dementia. “The diagnosis of dementia is, honestly, very poorly done in the clinical setting,” he said.
As well, the study could be subject to “confounding by indication,” Dr. Santos-Gallego said. “There could be a third variable, another confounding factor, that’s responsible both for the dementia and for the prescription of these drugs,” he added.
For example, he noted that comorbidities such as atrial fibrillation, myocardial infarction, and heart failure might increase the risk of dementia.
He agreed with the investigators that a randomized clinical trial would address these limitations. “All comorbidities would be equally shared” in the randomized groups, and all participants would be given “a specific test for dementia at the same time,” Dr. Santos-Gallego said.
Still, he noted that the new results are in keeping with hypertension guidelines that recommend stimulating drugs.
“This trial definitely shows that the current hypertension guidelines are good treatment for our patients, not only to control blood pressure and not only to prevent infarction to prevent stroke but also to prevent dementia,” said Dr. Santos-Gallego.
Also commenting for this news organization, Heather Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, said the new data provide “clarity” on why previous research had differing results on the effect of antihypertensives on cognition.
Among the caveats of this new analysis is that “it’s unclear if the demographics in this study are fully representative of Medicare beneficiaries,” said Dr. Snyder.
She, too, said a clinical trial is important “to understand if there is a preventative and/or treatment potential in the medications that stimulate type 2 and 4 angiotensin II receptors.”
The study received funding from the National Institute on Aging. Dr. Marcum and Dr. Santos-Gallego have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Antihypertensive medications that stimulate rather than inhibit type 2 and 4 angiotensin II receptors can lower the rate of dementia among new users of these medications, new research suggests.
Results from a cohort study of more than 57,000 older Medicare beneficiaries showed that the initiation of antihypertensives that stimulate the receptors was linked to a 16% lower risk for incident Alzheimer’s disease and related dementia (ADRD) and an 18% lower risk for vascular dementia compared with those that inhibit the receptors.
“Achieving appropriate blood pressure control is essential for maximizing brain health, and this promising research suggests certain antihypertensives could yield brain benefit compared to others,” lead study author Zachary A. Marcum, PharmD, PhD, associate professor, University of Washington School of Pharmacy, Seattle, told this news organization.
The findings were published online in JAMA Network Open.
Medicare beneficiaries
Previous observational studies showed that antihypertensive medications that stimulate type 2 and 4 angiotensin II receptors, in comparison with those that don’t, were associated with lower rates of dementia. However, those studies included individuals with prevalent hypertension and were relatively small.
The new retrospective cohort study included a random sample of 57,773 Medicare beneficiaries aged at least 65 years with new-onset hypertension. The mean age of participants was 73.8 years, 62.9% were women, and 86.9% were White.
Over the course of the study, some participants filled at least one prescription for a stimulating angiotensin II receptor type 2 and 4, such as angiotensin II receptor type 1 blockers, dihydropyridine calcium channel blockers, and thiazide diuretics.
Others participants filled a prescription for an inhibiting type 2 and 4 angiotensin II receptors, including angiotensin-converting enzyme (ACE) inhibitors, beta-blockers, and nondihydropyridine calcium channel blockers.
“All these medications lower blood pressure, but they do it in different ways,” said Dr. Marcum.
The researchers were interested in the varying activity of these drugs at the type 2 and 4 angiotensin II receptors.
For each 30-day interval, they categorized beneficiaries into four groups: a stimulating medication group (n = 4,879) consisting of individuals mostly taking stimulating antihypertensives; an inhibiting medication group (n = 10,303) that mostly included individuals prescribed this type of antihypertensive; a mixed group (n = 2,179) that included a combination of the first two classifications; and a nonuser group (n = 40,413) of individuals who were not using either type of drug.
The primary outcome was time to first occurrence of ADRD. The secondary outcome was time to first occurrence of vascular dementia.
Researchers controlled for cardiovascular risk factors and sociodemographic characteristics, such as age, sex, race/ethnicity, and receipt of low-income subsidy.
Unanswered questions
After adjustments, results showed that initiation of an antihypertensive medication regimen that exclusively stimulates, rather than inhibits, type 2 and 4 angiotensin II receptors was associated with a 16% lower risk for incident ADRD over a follow-up of just under 7 years (hazard ratio, 0.84; 95% confidence interval, 0.79-0.90; P < .001).
The mixed regimen was also associated with statistically significant (P = .001) reduced odds of ADRD compared with the inhibiting medications.
As for vascular dementia, use of stimulating vs. inhibiting medications was associated with an 18% lower risk (HR, 0.82; 95% CI, 0.69-0.96; P = .02).
Again, use of the mixed regimen was associated with reduced risk of vascular dementia compared with the inhibiting medications (P = .03).
A variety of potential mechanisms might explain the superiority of stimulating agents when it comes to dementia risk, said Dr. Marcum. These could include, for example, increased blood flow to the brain and reduced amyloid.
“But more mechanistic work is needed as well as evaluation of dose responses, because that’s not something we looked at in this study,” Dr. Marcum said. “There are still a lot of unanswered questions.”
Stimulators instead of inhibitors?
The results of the current analysis come on the heels of some previous work showing the benefits of lowering blood pressure. For example, the Systolic Blood Pressure Intervention Trial (SPRINT) showed that targeting a systolic blood pressure below 120 mm Hg significantly reduces risk for heart disease, stroke, and death from these diseases.
But in contrast to previous research, the current study included only beneficiaries with incident hypertension and new use of antihypertensive medications, and it adjusted for time-varying confounding.
Prescribing stimulating instead of inhibiting treatments could make a difference at the population level, Dr. Marcum noted.
“If we could shift the prescribing a little bit from inhibiting to stimulating, that could possibly reduce dementia risk,” he said.
However, “we’re not suggesting [that all patients] have their regimen switched,” he added.
That’s because inhibiting medications still have an important place in the antihypertensive treatment armamentarium, Dr. Marcum noted. As an example, beta-blockers are used post heart attack.
As well, factors such as cost and side effects should be taken into consideration when prescribing an antihypertensive drug.
The new results could be used to set up a comparison in a future randomized controlled trial that would provide the strongest evidence for estimating causal effects of treatments, said Dr. Marcum.
‘More convincing’
Carlos G. Santos-Gallego, MD, Icahn School of Medicine at Mount Sinai, New York, said the study is “more convincing” than previous related research, as it has a larger sample size and a longer follow-up.
“And the exquisite statistical analysis gives more robustness, more solidity, to the hypothesis that drugs that stimulate type 2 and 4 angiotensin II receptors might be protective for dementia,” said Dr. Santos-Gallego, who was not involved with the research.
However, he noted that the retrospective study had some limitations, including the underdiagnosis of dementia. “The diagnosis of dementia is, honestly, very poorly done in the clinical setting,” he said.
As well, the study could be subject to “confounding by indication,” Dr. Santos-Gallego said. “There could be a third variable, another confounding factor, that’s responsible both for the dementia and for the prescription of these drugs,” he added.
For example, he noted that comorbidities such as atrial fibrillation, myocardial infarction, and heart failure might increase the risk of dementia.
He agreed with the investigators that a randomized clinical trial would address these limitations. “All comorbidities would be equally shared” in the randomized groups, and all participants would be given “a specific test for dementia at the same time,” Dr. Santos-Gallego said.
Still, he noted that the new results are in keeping with hypertension guidelines that recommend stimulating drugs.
“This trial definitely shows that the current hypertension guidelines are good treatment for our patients, not only to control blood pressure and not only to prevent infarction to prevent stroke but also to prevent dementia,” said Dr. Santos-Gallego.
Also commenting for this news organization, Heather Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, said the new data provide “clarity” on why previous research had differing results on the effect of antihypertensives on cognition.
Among the caveats of this new analysis is that “it’s unclear if the demographics in this study are fully representative of Medicare beneficiaries,” said Dr. Snyder.
She, too, said a clinical trial is important “to understand if there is a preventative and/or treatment potential in the medications that stimulate type 2 and 4 angiotensin II receptors.”
The study received funding from the National Institute on Aging. Dr. Marcum and Dr. Santos-Gallego have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Hearing loss strongly tied to increased dementia risk
Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore, Md., told this news organization.
The findings were published online in JAMA.
Dose-dependent effect
For the study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study were collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than those with normal hearing (prevalence ratio, 1.61; 95% confidence interval, 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate/severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assistive devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). This news organization last month reported on similar data published in JAMA Neurology suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore, Md., told this news organization.
The findings were published online in JAMA.
Dose-dependent effect
For the study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study were collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than those with normal hearing (prevalence ratio, 1.61; 95% confidence interval, 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate/severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assistive devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). This news organization last month reported on similar data published in JAMA Neurology suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.
“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore, Md., told this news organization.
The findings were published online in JAMA.
Dose-dependent effect
For the study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.
Data from the study were collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.
“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.
Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.
Those with moderate to severe hearing loss were 61% more likely to have dementia than those with normal hearing (prevalence ratio, 1.61; 95% confidence interval, 1.09-2.38).
Dementia prevalence increased with increasing severity of hearing loss: normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate/severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).
Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).
Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assistive devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). This news organization last month reported on similar data published in JAMA Neurology suggesting that hearing aids reduce dementia risk.
“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
Robust association
Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.
“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”
Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.
“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.
“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.
The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM JAMA
Age competency exams for physicians – yes or no?
This transcript has been edited for clarity.
Robert D. Glatter, MD: Welcome. I’m Dr. Robert Glatter, medical advisor for Medscape Emergency Medicine. Joining me today is Sandeep Jauhar, a practicing cardiologist and professor of medicine at Northwell Health, a frequent New York Times op-ed contributor, and highly regarded author of the upcoming book “My Father’s Brain: Life in the Shadow of Alzheimer’s.”
Sandeep Jauhar, MD: Thanks for having me.
Dr. Glatter: Your recent op-ed piece in the New York Times caught my eye. In your piece, you refer to a 2020 survey in which almost one-third of licensed doctors in the United States were 60 years of age or older, up from a quarter in 2010. You also state that, due to a 20% prevalence of mild cognitive impairment in persons older than 65, practicing physicians above this age should probably be screened by a battery of tests to ensure that their reasoning and cognitive abilities are intact. The title of the article is “How Would You Feel About a 100-Year-Old Doctor?”
How would you envision such a process? What aspects of day-to-day functioning would the exams truly be evaluating?
Dr. Jauhar: A significant number of people over 65 have measurable cognitive impairment. By cognitive impairment, we’re not talking about dementia. The best estimates are that 1 in 10 people over age 65 have dementia, and roughly 1 in 5 have what’s called MCI, or mild cognitive impairment, which is cognitive impairment out of proportion to what you’d expect from normal aging. It’s a significant issue.
The argument that I made in the op-ed is that neurocognitive assessment is important. That’s not to say that everyone over age 65 has significant cognitive impairment or that older doctors can’t practice medicine safely and effectively. They absolutely can. The question is, do we leave neurocognitive assessment to physicians who may possibly be suffering from impairment?
In dementia, people very often have impaired self-awareness, a condition called anosognosia, which is a neurological term for not being aware of your own impairment because of your impairment.
I would argue that, instead of having voluntary neurocognitive screening, it should be mandated. The question is how to do that effectively, fairly, and transparently.
One could argue a gerontocracy in medicine today, where there are so many older physicians. What do we do about that? That really is something that I think needs to be debated.
Dr. Glatter: The question I have is, if we (that is, physicians and the health care profession) don’t take care of this, someone’s going to do it for us. We need to jump on this now while we have the opportunity. The AMA has been opposed to this, except when you have reason to suspect cognitive decline or are concerned about patient safety. A mandatory age of retirement is certainly something they’re not for, and we know this.
Your argument in your op-ed piece is very well thought out, and you lay the groundwork for testing (looking at someone’s memory, coordination, processing speed, and other executive functions). Certainly, for a psychiatrist, hearing is important, and for a dermatologist, vision is important. For a surgeon, there are other issues. Based on the specialty, we must be careful to see the important aspects of functioning. I am sure you would agree with this.
Dr. Jauhar: Obviously, the hand skills that are important for ophthalmological surgery certainly aren’t required for office-based psychological counseling, for example. We have to be smart about how we assess impairment.
You describe the spectrum of actions. On the one hand, there’s mandatory retirement at the age of 65 or 70 years. We know that commercial pilots are mandated to essentially retire at 65, and air-traffic controllers must retire in their late 50s.
We know that there’s a large amount of variability in competence. There are internists in their 80s with whom I’ve worked, and I’m absolutely wowed by their experience and judgment. There are new medical resident graduates who don’t really seem to have the requisite level of competence that would make me feel comfortable to have them as my doctor or a doctor for a member of my family.
To mandate retirement, I think the AMA is absolutely right. To not call for any kind of competency testing, to me, seems equally unwise. Because at the end of the day, you have to balance individual physician needs or wants to continue practicing with patient safety. I haven’t really come across too many physicians who say, “There’s absolutely no need for a competency testing.”
We have to meet somewhere in the middle. The middle is either voluntary cognitive competency testing or mandatory. I would argue that, because we know that as the brain changes we have cognitive impairment, but we’re not always aware that we need help, mandatory testing is the way.
One other thing that you mentioned was about having the solution imposed on us. You and I are doctors. We deal with bureaucracy. We deal with poorly thought-out solutions to issues in health care that make our lives that much more difficult. I don’t want that solution imposed on us by some outside agency. I think we need to figure this out within medicine and figure out the right way of doing it.
The AMA is on board with this. They haven’t called for mandatory testing, but they have said that if testing were to occur, these are the guidelines. The guidelines are fair and equitable, not too time-consuming, transparent, and not punitive. If someone comes out and doesn’t test well, we shouldn’t force them out of the profession. We can find ways to use their experience to help train younger doctors, for example.
Dr. Glatter: I wanted to segue to an area where there has been some challenge to the legality of these mandatory types of age restrictions and imposing the exams as well. There’s been a lawsuit as well by the EEOC [Equal Employment Opportunity Commission], on behalf of Yale. Basically, there’s been a concern that ageism is part of what’s going on. Yale now screens their providers beginning at age 70, and they have a program. UCSD [University of California, San Diego] has a program in place. Obviously, these institutions are looking at it. This is a very small part of the overall picture.
Health care systems overall, we’re talking about a fraction of them in the country are really addressing the issue of competency exams. The question is, where do we go from here? How do we get engagement or adoption and get physicians as a whole to embrace this concept?
Dr. Jauhar: The EEOC filed a lawsuit on behalf of the Yale medical staff that argued that Yale’s plan to do vision testing and neurocognitive screening – there may be a physical exam also – constitutes age discrimination because it’s reserved for doctors over the age of 70. Those are the physicians who are most likely to have cognitive impairment.
We have rules already for impaired physicians who are, for example, addicted to illicit drugs or have alcohol abuse. We already have some of those measures in place. This is focused on cognitive impairment in aging physicians because cognitive impairment is an issue that arises with aging. We have to be clear about that.
Most younger physicians will not have measurable cognitive impairment that would impair their ability to practice. To force young physicians (for example, physicians in their forties) to undergo such screening, all in the name of preventing age discrimination, doesn’t strike me as being a good use of resources. They’re more likely to be false positives, as you know from Bayesian statistics. When you have low pretest probability, you’re more likely to get false positives.
How are we going to screen hundreds of thousands of physicians? We have to make a choice about the group that really is more likely to benefit from such screening. Very few hospitals are addressing this issue and it’s going to become more important.
Dr. Glatter: Surgeons have been particularly active in pushing for age-based screening. In 2016, the American College of Surgeons started making surgeons at age 65-70 undergo voluntary health and neurocognitive assessments, and encouraged physicians to disclose any concerning findings as part of their professional obligation, which is pretty impressive in my mind.
Surgeons’ skill set is quite demanding physically and technically. That the Society of Surgical Chairs took it upon themselves to institute this is pretty telling.
Dr. Jauhar: The overall society called for screening, but then in a separate survey of surgical chairs, the idea was advanced that we should have mandatory retirement. Now, I don’t particularly agree with that.
I’ve seen it, where you have the aging surgeon who was a star in their day, and no one wants to say anything when their skills have visibly degraded, and no one wants to carry that torch and tell them that they need to retire. What happens is people whisper, and unfortunately, bad outcomes have to occur before people tend to get involved, and that’s what I’m trying to prevent.
Dr. Glatter: The question is whether older physicians have worse patient outcomes. The evidence is inconclusive, but studies have shown higher mortality rates for cardiovascular surgeons in terms of the procedures that they do. On the flip side, there are also higher mortality rates for GI surgery performed by younger surgeons. It’s a mixed bag.
Dr. Jauhar: For specialized surgery, you need the accrual of a certain amount of experience. The optimal age is about 60, because they’ve seen many things and they’ve seen complications. They don’t have a hand tremor yet so they’re still functioning well, and they’ve accrued a lot of experience. We have to be smart about who we screen.
There’s a learning curve in surgery. By no means am I arguing that younger surgeons are better surgeons. I would say that there’s probably a tipping point where once you get past a certain age and physical deterioration starts to take effect, that can overshadow the accrual of cognitive and surgical experience. We have to balance those things.
I would say neurocognitive screening and vision testing are important, but exactly what do you measure? How much of a hand tremor would constitute a risk? These things have to be figured out. I just want doctors to be leading the charge here and not have this imposed by bureaucrats.
Dr. Glatter: I was reading that some doctors have had these exams administered and they can really pass cognitive aspects of the exam, but there have been nuances in the actual practicing of medicine, day-to-day functioning, which they’re not good at.
Someone made a comment that the only way to know if a doctor can do well in practice is to observe their practice and observe them taking care of patients. In other words, you can game the system and pass the cognitive exam in some form but then have a problem practicing medicine.
Dr. Jauhar: Ultimately, outcomes have to be measured. We can’t adopt such a granular approach for every aging physician. There has to be some sort of screening that maybe raises a red flag and then hospitals and department chairs need to investigate further. What are the outcomes? What are people saying in the operating room? I think the screening is just that; it’s a way of opening the door to further investigation, but it’s not a witch hunt.
I have the highest respect for older physicians, and I learn from them every day, honestly, especially in my field (cardiology), because some of the older physicians can hear and see things on physical exam that I didn’t even know existed. There’s much to be learned from them.
This is not intended to be a witch hunt or to try to get rid of older physicians – by any means. We want to avoid some of the outcomes that I read about in the New York Times comments section. It’s not fair to our patients not to do at least some sort of screening to prevent those kinds of mistakes.
Dr. Glatter: I wanted to go back to data from Yale between October 2016 and January 2019, where 141 Yale clinicians who ranged in age from 69 to 92 years completed cognitive assessments. Of those, 18 clinicians, or about 13% of those tested, demonstrated cognitive deficits that were “deemed likely to impair their ability to practice medicine independently.” That’s telling. These are subtleties, but they’re important to identify. I would love to get your comment on that.
Dr. Jauhar: It’s in keeping with what we know about the proportion of our older citizens who have cognitive impairment. About 10% have dementia and about 20% have at least mild cognitive impairment. That’s in keeping with what we know, and this was a general screening.
There are certain programs, like in San Diego, for example, where physicians are referred, and so there’s a selection bias. But this was just general screening. It’s worrisome. I’m an aging physician myself. I want fairness in this process because I’m going to be assessed as well.
I just don’t really understand yet why there’s so much circling of the wagons and so much resistance. It seems like it would be good for physicians also to be removed from situations where they might get into potential litigation because of mistakes and physical or visual impairment. It seems like it’d be good for patients and physicians alike.
Dr. Glatter: It’s difficult to give up your profession, change fields, or become administrative at some point, and [decide] when to make that transition. As we all get older, we’re not going to have the ability to do what we did in our 20s, 30s, and so forth.
Dr. Jauhar: Much of the resistance is coming from doctors who are used to high levels of autonomy. I’m certainly sympathetic to that because I don’t want anyone telling me how to practice. The reason this is coming up and hasn’t come up in the past is not because of loss of autonomy but because of an actual demographic change. Many physicians were trained in the 1960s, ’70s, or ’80s. They’re getting to retirement age but they’re not retiring, and we can speculate as to why that is.
In America’s educational system, doctors incur a huge amount of debt. I know physicians who are still paying off their debt and they’re in their 50s and 60s, so I’m very sympathetic to that. I’m not trying to force doctors out of practicing. I just want whoever is practicing to be competent and to practice safely. We have to figure out how to do that.
Dr. Glatter: The fact that there is a shortage of physicians forecast in the next 10-15 years makes many physicians reluctant to retire. They feel like they want to be part of that support network and we don’t want to have a dire situation, especially in the rural areas. We’re not immune from aging. We’re human beings. We all have to realize that.
Dr. Jauhar: I know that the ACC is starting to debate this issue, in part because of my op-ed. My hope is that it will start a conversation and we will institute a plan that comes from physicians and serves our patients, and doesn’t serve some cottage industry of testing or serve the needs of insurers or bureaucrats. It has to serve the doctor-patient relationship.
Dr. Glatter: In some random surveys that I’ve read, up to 30%-40% of physicians do support some type of age-based screening or competency assessment. The needle’s moving. It’s just not there yet. I think that wider adoption is coming.
Dr. Jauhar: Data are coming as more hospitals start to adopt these late practitioner programs. Some of the data that came out of Yale, for example, are very important. We’re going to see more published data in this area, and it will clarify what we need to do and how big the problem is.
Dr. Glatter: I want to thank you again for your time and for writing the op-ed because it certainly was well read and opened the eyes of not only physicians, but also the public at large. It’s a conversation that has to be had. Thank you for doing this.
Dr. Jauhar: Thanks for inviting me, Robert. It was a pleasure to talk to you.
Dr. Glatter is assistant professor of emergency medicine, department of emergency medicine, at Hofstra University, Hempstead, N.Y. Dr. Jauhar is director of the heart failure program, Long Island Jewish Medical Center, New Hyde Park, N.Y. Neither Dr. Glatter nor Dr. Jauhar reported any relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
This transcript has been edited for clarity.
Robert D. Glatter, MD: Welcome. I’m Dr. Robert Glatter, medical advisor for Medscape Emergency Medicine. Joining me today is Sandeep Jauhar, a practicing cardiologist and professor of medicine at Northwell Health, a frequent New York Times op-ed contributor, and highly regarded author of the upcoming book “My Father’s Brain: Life in the Shadow of Alzheimer’s.”
Sandeep Jauhar, MD: Thanks for having me.
Dr. Glatter: Your recent op-ed piece in the New York Times caught my eye. In your piece, you refer to a 2020 survey in which almost one-third of licensed doctors in the United States were 60 years of age or older, up from a quarter in 2010. You also state that, due to a 20% prevalence of mild cognitive impairment in persons older than 65, practicing physicians above this age should probably be screened by a battery of tests to ensure that their reasoning and cognitive abilities are intact. The title of the article is “How Would You Feel About a 100-Year-Old Doctor?”
How would you envision such a process? What aspects of day-to-day functioning would the exams truly be evaluating?
Dr. Jauhar: A significant number of people over 65 have measurable cognitive impairment. By cognitive impairment, we’re not talking about dementia. The best estimates are that 1 in 10 people over age 65 have dementia, and roughly 1 in 5 have what’s called MCI, or mild cognitive impairment, which is cognitive impairment out of proportion to what you’d expect from normal aging. It’s a significant issue.
The argument that I made in the op-ed is that neurocognitive assessment is important. That’s not to say that everyone over age 65 has significant cognitive impairment or that older doctors can’t practice medicine safely and effectively. They absolutely can. The question is, do we leave neurocognitive assessment to physicians who may possibly be suffering from impairment?
In dementia, people very often have impaired self-awareness, a condition called anosognosia, which is a neurological term for not being aware of your own impairment because of your impairment.
I would argue that, instead of having voluntary neurocognitive screening, it should be mandated. The question is how to do that effectively, fairly, and transparently.
One could argue a gerontocracy in medicine today, where there are so many older physicians. What do we do about that? That really is something that I think needs to be debated.
Dr. Glatter: The question I have is, if we (that is, physicians and the health care profession) don’t take care of this, someone’s going to do it for us. We need to jump on this now while we have the opportunity. The AMA has been opposed to this, except when you have reason to suspect cognitive decline or are concerned about patient safety. A mandatory age of retirement is certainly something they’re not for, and we know this.
Your argument in your op-ed piece is very well thought out, and you lay the groundwork for testing (looking at someone’s memory, coordination, processing speed, and other executive functions). Certainly, for a psychiatrist, hearing is important, and for a dermatologist, vision is important. For a surgeon, there are other issues. Based on the specialty, we must be careful to see the important aspects of functioning. I am sure you would agree with this.
Dr. Jauhar: Obviously, the hand skills that are important for ophthalmological surgery certainly aren’t required for office-based psychological counseling, for example. We have to be smart about how we assess impairment.
You describe the spectrum of actions. On the one hand, there’s mandatory retirement at the age of 65 or 70 years. We know that commercial pilots are mandated to essentially retire at 65, and air-traffic controllers must retire in their late 50s.
We know that there’s a large amount of variability in competence. There are internists in their 80s with whom I’ve worked, and I’m absolutely wowed by their experience and judgment. There are new medical resident graduates who don’t really seem to have the requisite level of competence that would make me feel comfortable to have them as my doctor or a doctor for a member of my family.
To mandate retirement, I think the AMA is absolutely right. To not call for any kind of competency testing, to me, seems equally unwise. Because at the end of the day, you have to balance individual physician needs or wants to continue practicing with patient safety. I haven’t really come across too many physicians who say, “There’s absolutely no need for a competency testing.”
We have to meet somewhere in the middle. The middle is either voluntary cognitive competency testing or mandatory. I would argue that, because we know that as the brain changes we have cognitive impairment, but we’re not always aware that we need help, mandatory testing is the way.
One other thing that you mentioned was about having the solution imposed on us. You and I are doctors. We deal with bureaucracy. We deal with poorly thought-out solutions to issues in health care that make our lives that much more difficult. I don’t want that solution imposed on us by some outside agency. I think we need to figure this out within medicine and figure out the right way of doing it.
The AMA is on board with this. They haven’t called for mandatory testing, but they have said that if testing were to occur, these are the guidelines. The guidelines are fair and equitable, not too time-consuming, transparent, and not punitive. If someone comes out and doesn’t test well, we shouldn’t force them out of the profession. We can find ways to use their experience to help train younger doctors, for example.
Dr. Glatter: I wanted to segue to an area where there has been some challenge to the legality of these mandatory types of age restrictions and imposing the exams as well. There’s been a lawsuit as well by the EEOC [Equal Employment Opportunity Commission], on behalf of Yale. Basically, there’s been a concern that ageism is part of what’s going on. Yale now screens their providers beginning at age 70, and they have a program. UCSD [University of California, San Diego] has a program in place. Obviously, these institutions are looking at it. This is a very small part of the overall picture.
Health care systems overall, we’re talking about a fraction of them in the country are really addressing the issue of competency exams. The question is, where do we go from here? How do we get engagement or adoption and get physicians as a whole to embrace this concept?
Dr. Jauhar: The EEOC filed a lawsuit on behalf of the Yale medical staff that argued that Yale’s plan to do vision testing and neurocognitive screening – there may be a physical exam also – constitutes age discrimination because it’s reserved for doctors over the age of 70. Those are the physicians who are most likely to have cognitive impairment.
We have rules already for impaired physicians who are, for example, addicted to illicit drugs or have alcohol abuse. We already have some of those measures in place. This is focused on cognitive impairment in aging physicians because cognitive impairment is an issue that arises with aging. We have to be clear about that.
Most younger physicians will not have measurable cognitive impairment that would impair their ability to practice. To force young physicians (for example, physicians in their forties) to undergo such screening, all in the name of preventing age discrimination, doesn’t strike me as being a good use of resources. They’re more likely to be false positives, as you know from Bayesian statistics. When you have low pretest probability, you’re more likely to get false positives.
How are we going to screen hundreds of thousands of physicians? We have to make a choice about the group that really is more likely to benefit from such screening. Very few hospitals are addressing this issue and it’s going to become more important.
Dr. Glatter: Surgeons have been particularly active in pushing for age-based screening. In 2016, the American College of Surgeons started making surgeons at age 65-70 undergo voluntary health and neurocognitive assessments, and encouraged physicians to disclose any concerning findings as part of their professional obligation, which is pretty impressive in my mind.
Surgeons’ skill set is quite demanding physically and technically. That the Society of Surgical Chairs took it upon themselves to institute this is pretty telling.
Dr. Jauhar: The overall society called for screening, but then in a separate survey of surgical chairs, the idea was advanced that we should have mandatory retirement. Now, I don’t particularly agree with that.
I’ve seen it, where you have the aging surgeon who was a star in their day, and no one wants to say anything when their skills have visibly degraded, and no one wants to carry that torch and tell them that they need to retire. What happens is people whisper, and unfortunately, bad outcomes have to occur before people tend to get involved, and that’s what I’m trying to prevent.
Dr. Glatter: The question is whether older physicians have worse patient outcomes. The evidence is inconclusive, but studies have shown higher mortality rates for cardiovascular surgeons in terms of the procedures that they do. On the flip side, there are also higher mortality rates for GI surgery performed by younger surgeons. It’s a mixed bag.
Dr. Jauhar: For specialized surgery, you need the accrual of a certain amount of experience. The optimal age is about 60, because they’ve seen many things and they’ve seen complications. They don’t have a hand tremor yet so they’re still functioning well, and they’ve accrued a lot of experience. We have to be smart about who we screen.
There’s a learning curve in surgery. By no means am I arguing that younger surgeons are better surgeons. I would say that there’s probably a tipping point where once you get past a certain age and physical deterioration starts to take effect, that can overshadow the accrual of cognitive and surgical experience. We have to balance those things.
I would say neurocognitive screening and vision testing are important, but exactly what do you measure? How much of a hand tremor would constitute a risk? These things have to be figured out. I just want doctors to be leading the charge here and not have this imposed by bureaucrats.
Dr. Glatter: I was reading that some doctors have had these exams administered and they can really pass cognitive aspects of the exam, but there have been nuances in the actual practicing of medicine, day-to-day functioning, which they’re not good at.
Someone made a comment that the only way to know if a doctor can do well in practice is to observe their practice and observe them taking care of patients. In other words, you can game the system and pass the cognitive exam in some form but then have a problem practicing medicine.
Dr. Jauhar: Ultimately, outcomes have to be measured. We can’t adopt such a granular approach for every aging physician. There has to be some sort of screening that maybe raises a red flag and then hospitals and department chairs need to investigate further. What are the outcomes? What are people saying in the operating room? I think the screening is just that; it’s a way of opening the door to further investigation, but it’s not a witch hunt.
I have the highest respect for older physicians, and I learn from them every day, honestly, especially in my field (cardiology), because some of the older physicians can hear and see things on physical exam that I didn’t even know existed. There’s much to be learned from them.
This is not intended to be a witch hunt or to try to get rid of older physicians – by any means. We want to avoid some of the outcomes that I read about in the New York Times comments section. It’s not fair to our patients not to do at least some sort of screening to prevent those kinds of mistakes.
Dr. Glatter: I wanted to go back to data from Yale between October 2016 and January 2019, where 141 Yale clinicians who ranged in age from 69 to 92 years completed cognitive assessments. Of those, 18 clinicians, or about 13% of those tested, demonstrated cognitive deficits that were “deemed likely to impair their ability to practice medicine independently.” That’s telling. These are subtleties, but they’re important to identify. I would love to get your comment on that.
Dr. Jauhar: It’s in keeping with what we know about the proportion of our older citizens who have cognitive impairment. About 10% have dementia and about 20% have at least mild cognitive impairment. That’s in keeping with what we know, and this was a general screening.
There are certain programs, like in San Diego, for example, where physicians are referred, and so there’s a selection bias. But this was just general screening. It’s worrisome. I’m an aging physician myself. I want fairness in this process because I’m going to be assessed as well.
I just don’t really understand yet why there’s so much circling of the wagons and so much resistance. It seems like it would be good for physicians also to be removed from situations where they might get into potential litigation because of mistakes and physical or visual impairment. It seems like it’d be good for patients and physicians alike.
Dr. Glatter: It’s difficult to give up your profession, change fields, or become administrative at some point, and [decide] when to make that transition. As we all get older, we’re not going to have the ability to do what we did in our 20s, 30s, and so forth.
Dr. Jauhar: Much of the resistance is coming from doctors who are used to high levels of autonomy. I’m certainly sympathetic to that because I don’t want anyone telling me how to practice. The reason this is coming up and hasn’t come up in the past is not because of loss of autonomy but because of an actual demographic change. Many physicians were trained in the 1960s, ’70s, or ’80s. They’re getting to retirement age but they’re not retiring, and we can speculate as to why that is.
In America’s educational system, doctors incur a huge amount of debt. I know physicians who are still paying off their debt and they’re in their 50s and 60s, so I’m very sympathetic to that. I’m not trying to force doctors out of practicing. I just want whoever is practicing to be competent and to practice safely. We have to figure out how to do that.
Dr. Glatter: The fact that there is a shortage of physicians forecast in the next 10-15 years makes many physicians reluctant to retire. They feel like they want to be part of that support network and we don’t want to have a dire situation, especially in the rural areas. We’re not immune from aging. We’re human beings. We all have to realize that.
Dr. Jauhar: I know that the ACC is starting to debate this issue, in part because of my op-ed. My hope is that it will start a conversation and we will institute a plan that comes from physicians and serves our patients, and doesn’t serve some cottage industry of testing or serve the needs of insurers or bureaucrats. It has to serve the doctor-patient relationship.
Dr. Glatter: In some random surveys that I’ve read, up to 30%-40% of physicians do support some type of age-based screening or competency assessment. The needle’s moving. It’s just not there yet. I think that wider adoption is coming.
Dr. Jauhar: Data are coming as more hospitals start to adopt these late practitioner programs. Some of the data that came out of Yale, for example, are very important. We’re going to see more published data in this area, and it will clarify what we need to do and how big the problem is.
Dr. Glatter: I want to thank you again for your time and for writing the op-ed because it certainly was well read and opened the eyes of not only physicians, but also the public at large. It’s a conversation that has to be had. Thank you for doing this.
Dr. Jauhar: Thanks for inviting me, Robert. It was a pleasure to talk to you.
Dr. Glatter is assistant professor of emergency medicine, department of emergency medicine, at Hofstra University, Hempstead, N.Y. Dr. Jauhar is director of the heart failure program, Long Island Jewish Medical Center, New Hyde Park, N.Y. Neither Dr. Glatter nor Dr. Jauhar reported any relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
This transcript has been edited for clarity.
Robert D. Glatter, MD: Welcome. I’m Dr. Robert Glatter, medical advisor for Medscape Emergency Medicine. Joining me today is Sandeep Jauhar, a practicing cardiologist and professor of medicine at Northwell Health, a frequent New York Times op-ed contributor, and highly regarded author of the upcoming book “My Father’s Brain: Life in the Shadow of Alzheimer’s.”
Sandeep Jauhar, MD: Thanks for having me.
Dr. Glatter: Your recent op-ed piece in the New York Times caught my eye. In your piece, you refer to a 2020 survey in which almost one-third of licensed doctors in the United States were 60 years of age or older, up from a quarter in 2010. You also state that, due to a 20% prevalence of mild cognitive impairment in persons older than 65, practicing physicians above this age should probably be screened by a battery of tests to ensure that their reasoning and cognitive abilities are intact. The title of the article is “How Would You Feel About a 100-Year-Old Doctor?”
How would you envision such a process? What aspects of day-to-day functioning would the exams truly be evaluating?
Dr. Jauhar: A significant number of people over 65 have measurable cognitive impairment. By cognitive impairment, we’re not talking about dementia. The best estimates are that 1 in 10 people over age 65 have dementia, and roughly 1 in 5 have what’s called MCI, or mild cognitive impairment, which is cognitive impairment out of proportion to what you’d expect from normal aging. It’s a significant issue.
The argument that I made in the op-ed is that neurocognitive assessment is important. That’s not to say that everyone over age 65 has significant cognitive impairment or that older doctors can’t practice medicine safely and effectively. They absolutely can. The question is, do we leave neurocognitive assessment to physicians who may possibly be suffering from impairment?
In dementia, people very often have impaired self-awareness, a condition called anosognosia, which is a neurological term for not being aware of your own impairment because of your impairment.
I would argue that, instead of having voluntary neurocognitive screening, it should be mandated. The question is how to do that effectively, fairly, and transparently.
One could argue a gerontocracy in medicine today, where there are so many older physicians. What do we do about that? That really is something that I think needs to be debated.
Dr. Glatter: The question I have is, if we (that is, physicians and the health care profession) don’t take care of this, someone’s going to do it for us. We need to jump on this now while we have the opportunity. The AMA has been opposed to this, except when you have reason to suspect cognitive decline or are concerned about patient safety. A mandatory age of retirement is certainly something they’re not for, and we know this.
Your argument in your op-ed piece is very well thought out, and you lay the groundwork for testing (looking at someone’s memory, coordination, processing speed, and other executive functions). Certainly, for a psychiatrist, hearing is important, and for a dermatologist, vision is important. For a surgeon, there are other issues. Based on the specialty, we must be careful to see the important aspects of functioning. I am sure you would agree with this.
Dr. Jauhar: Obviously, the hand skills that are important for ophthalmological surgery certainly aren’t required for office-based psychological counseling, for example. We have to be smart about how we assess impairment.
You describe the spectrum of actions. On the one hand, there’s mandatory retirement at the age of 65 or 70 years. We know that commercial pilots are mandated to essentially retire at 65, and air-traffic controllers must retire in their late 50s.
We know that there’s a large amount of variability in competence. There are internists in their 80s with whom I’ve worked, and I’m absolutely wowed by their experience and judgment. There are new medical resident graduates who don’t really seem to have the requisite level of competence that would make me feel comfortable to have them as my doctor or a doctor for a member of my family.
To mandate retirement, I think the AMA is absolutely right. To not call for any kind of competency testing, to me, seems equally unwise. Because at the end of the day, you have to balance individual physician needs or wants to continue practicing with patient safety. I haven’t really come across too many physicians who say, “There’s absolutely no need for a competency testing.”
We have to meet somewhere in the middle. The middle is either voluntary cognitive competency testing or mandatory. I would argue that, because we know that as the brain changes we have cognitive impairment, but we’re not always aware that we need help, mandatory testing is the way.
One other thing that you mentioned was about having the solution imposed on us. You and I are doctors. We deal with bureaucracy. We deal with poorly thought-out solutions to issues in health care that make our lives that much more difficult. I don’t want that solution imposed on us by some outside agency. I think we need to figure this out within medicine and figure out the right way of doing it.
The AMA is on board with this. They haven’t called for mandatory testing, but they have said that if testing were to occur, these are the guidelines. The guidelines are fair and equitable, not too time-consuming, transparent, and not punitive. If someone comes out and doesn’t test well, we shouldn’t force them out of the profession. We can find ways to use their experience to help train younger doctors, for example.
Dr. Glatter: I wanted to segue to an area where there has been some challenge to the legality of these mandatory types of age restrictions and imposing the exams as well. There’s been a lawsuit as well by the EEOC [Equal Employment Opportunity Commission], on behalf of Yale. Basically, there’s been a concern that ageism is part of what’s going on. Yale now screens their providers beginning at age 70, and they have a program. UCSD [University of California, San Diego] has a program in place. Obviously, these institutions are looking at it. This is a very small part of the overall picture.
Health care systems overall, we’re talking about a fraction of them in the country are really addressing the issue of competency exams. The question is, where do we go from here? How do we get engagement or adoption and get physicians as a whole to embrace this concept?
Dr. Jauhar: The EEOC filed a lawsuit on behalf of the Yale medical staff that argued that Yale’s plan to do vision testing and neurocognitive screening – there may be a physical exam also – constitutes age discrimination because it’s reserved for doctors over the age of 70. Those are the physicians who are most likely to have cognitive impairment.
We have rules already for impaired physicians who are, for example, addicted to illicit drugs or have alcohol abuse. We already have some of those measures in place. This is focused on cognitive impairment in aging physicians because cognitive impairment is an issue that arises with aging. We have to be clear about that.
Most younger physicians will not have measurable cognitive impairment that would impair their ability to practice. To force young physicians (for example, physicians in their forties) to undergo such screening, all in the name of preventing age discrimination, doesn’t strike me as being a good use of resources. They’re more likely to be false positives, as you know from Bayesian statistics. When you have low pretest probability, you’re more likely to get false positives.
How are we going to screen hundreds of thousands of physicians? We have to make a choice about the group that really is more likely to benefit from such screening. Very few hospitals are addressing this issue and it’s going to become more important.
Dr. Glatter: Surgeons have been particularly active in pushing for age-based screening. In 2016, the American College of Surgeons started making surgeons at age 65-70 undergo voluntary health and neurocognitive assessments, and encouraged physicians to disclose any concerning findings as part of their professional obligation, which is pretty impressive in my mind.
Surgeons’ skill set is quite demanding physically and technically. That the Society of Surgical Chairs took it upon themselves to institute this is pretty telling.
Dr. Jauhar: The overall society called for screening, but then in a separate survey of surgical chairs, the idea was advanced that we should have mandatory retirement. Now, I don’t particularly agree with that.
I’ve seen it, where you have the aging surgeon who was a star in their day, and no one wants to say anything when their skills have visibly degraded, and no one wants to carry that torch and tell them that they need to retire. What happens is people whisper, and unfortunately, bad outcomes have to occur before people tend to get involved, and that’s what I’m trying to prevent.
Dr. Glatter: The question is whether older physicians have worse patient outcomes. The evidence is inconclusive, but studies have shown higher mortality rates for cardiovascular surgeons in terms of the procedures that they do. On the flip side, there are also higher mortality rates for GI surgery performed by younger surgeons. It’s a mixed bag.
Dr. Jauhar: For specialized surgery, you need the accrual of a certain amount of experience. The optimal age is about 60, because they’ve seen many things and they’ve seen complications. They don’t have a hand tremor yet so they’re still functioning well, and they’ve accrued a lot of experience. We have to be smart about who we screen.
There’s a learning curve in surgery. By no means am I arguing that younger surgeons are better surgeons. I would say that there’s probably a tipping point where once you get past a certain age and physical deterioration starts to take effect, that can overshadow the accrual of cognitive and surgical experience. We have to balance those things.
I would say neurocognitive screening and vision testing are important, but exactly what do you measure? How much of a hand tremor would constitute a risk? These things have to be figured out. I just want doctors to be leading the charge here and not have this imposed by bureaucrats.
Dr. Glatter: I was reading that some doctors have had these exams administered and they can really pass cognitive aspects of the exam, but there have been nuances in the actual practicing of medicine, day-to-day functioning, which they’re not good at.
Someone made a comment that the only way to know if a doctor can do well in practice is to observe their practice and observe them taking care of patients. In other words, you can game the system and pass the cognitive exam in some form but then have a problem practicing medicine.
Dr. Jauhar: Ultimately, outcomes have to be measured. We can’t adopt such a granular approach for every aging physician. There has to be some sort of screening that maybe raises a red flag and then hospitals and department chairs need to investigate further. What are the outcomes? What are people saying in the operating room? I think the screening is just that; it’s a way of opening the door to further investigation, but it’s not a witch hunt.
I have the highest respect for older physicians, and I learn from them every day, honestly, especially in my field (cardiology), because some of the older physicians can hear and see things on physical exam that I didn’t even know existed. There’s much to be learned from them.
This is not intended to be a witch hunt or to try to get rid of older physicians – by any means. We want to avoid some of the outcomes that I read about in the New York Times comments section. It’s not fair to our patients not to do at least some sort of screening to prevent those kinds of mistakes.
Dr. Glatter: I wanted to go back to data from Yale between October 2016 and January 2019, where 141 Yale clinicians who ranged in age from 69 to 92 years completed cognitive assessments. Of those, 18 clinicians, or about 13% of those tested, demonstrated cognitive deficits that were “deemed likely to impair their ability to practice medicine independently.” That’s telling. These are subtleties, but they’re important to identify. I would love to get your comment on that.
Dr. Jauhar: It’s in keeping with what we know about the proportion of our older citizens who have cognitive impairment. About 10% have dementia and about 20% have at least mild cognitive impairment. That’s in keeping with what we know, and this was a general screening.
There are certain programs, like in San Diego, for example, where physicians are referred, and so there’s a selection bias. But this was just general screening. It’s worrisome. I’m an aging physician myself. I want fairness in this process because I’m going to be assessed as well.
I just don’t really understand yet why there’s so much circling of the wagons and so much resistance. It seems like it would be good for physicians also to be removed from situations where they might get into potential litigation because of mistakes and physical or visual impairment. It seems like it’d be good for patients and physicians alike.
Dr. Glatter: It’s difficult to give up your profession, change fields, or become administrative at some point, and [decide] when to make that transition. As we all get older, we’re not going to have the ability to do what we did in our 20s, 30s, and so forth.
Dr. Jauhar: Much of the resistance is coming from doctors who are used to high levels of autonomy. I’m certainly sympathetic to that because I don’t want anyone telling me how to practice. The reason this is coming up and hasn’t come up in the past is not because of loss of autonomy but because of an actual demographic change. Many physicians were trained in the 1960s, ’70s, or ’80s. They’re getting to retirement age but they’re not retiring, and we can speculate as to why that is.
In America’s educational system, doctors incur a huge amount of debt. I know physicians who are still paying off their debt and they’re in their 50s and 60s, so I’m very sympathetic to that. I’m not trying to force doctors out of practicing. I just want whoever is practicing to be competent and to practice safely. We have to figure out how to do that.
Dr. Glatter: The fact that there is a shortage of physicians forecast in the next 10-15 years makes many physicians reluctant to retire. They feel like they want to be part of that support network and we don’t want to have a dire situation, especially in the rural areas. We’re not immune from aging. We’re human beings. We all have to realize that.
Dr. Jauhar: I know that the ACC is starting to debate this issue, in part because of my op-ed. My hope is that it will start a conversation and we will institute a plan that comes from physicians and serves our patients, and doesn’t serve some cottage industry of testing or serve the needs of insurers or bureaucrats. It has to serve the doctor-patient relationship.
Dr. Glatter: In some random surveys that I’ve read, up to 30%-40% of physicians do support some type of age-based screening or competency assessment. The needle’s moving. It’s just not there yet. I think that wider adoption is coming.
Dr. Jauhar: Data are coming as more hospitals start to adopt these late practitioner programs. Some of the data that came out of Yale, for example, are very important. We’re going to see more published data in this area, and it will clarify what we need to do and how big the problem is.
Dr. Glatter: I want to thank you again for your time and for writing the op-ed because it certainly was well read and opened the eyes of not only physicians, but also the public at large. It’s a conversation that has to be had. Thank you for doing this.
Dr. Jauhar: Thanks for inviting me, Robert. It was a pleasure to talk to you.
Dr. Glatter is assistant professor of emergency medicine, department of emergency medicine, at Hofstra University, Hempstead, N.Y. Dr. Jauhar is director of the heart failure program, Long Island Jewish Medical Center, New Hyde Park, N.Y. Neither Dr. Glatter nor Dr. Jauhar reported any relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
What to know about newly approved Alzheimer’s drug
, offering hope where there has been little for patients and their families affected by the devastating disease.
More than 6 million people in the United States live with Alzheimer’s.
It’s not a cure, but the drug, given intravenously every 2 weeks, has shown moderate positive effects in clinical trials in slowing early-stage disease.
But many are wary. As explained in an editorial in the journal The Lancet, “The Alzheimer’s disease community has become accustomed to false hope, disappointment, and controversy.”
Some worry about lecanemab’s safety as some people in clinical trials experienced serious side effects of bleeding and swelling in the brain. Scientists recently attributed a third death to lecanemab, brand name Leqembi, though the drugmaker disputed the medication was the cause.
So what should patients and their families make of this news? Here we answer some of the top questions surrounding the drug.
What does the FDA action mean?
The FDA granted accelerated approval to Leqembi after it showed positive trial results in slowing the progression of early-stage disease.
The FDA can grant accelerated approval for drugs that treat serious conditions and fill an unmet medical need while drugs continue to be studied in larger trials.
With the FDA approval in hand, doctors can now prescribe the medication.
Rebecca Edelmayer, PhD, the Alzheimer’s Association senior director of scientific engagement, says that with the FDA’s move, ramping up manufacturing – and eventually nationwide distribution and implementation – will take some time.
“Ask your doctor about availability,” she says. “The main issue is that, without insurance and Medicare coverage of this class of treatments, access for those who could benefit from the newly approved treatment will only be available to those who can pay out-of-pocket. Without coverage, people simply won’t be able to get the treatment.”
The Washington Post reports that with accelerated approval, drugmaker Eisai is expected to immediately apply for full FDA approval, which wouldn’t be likely to come before later this year. Full approval could help clear the path for Medicare coverage of the drug.
Potential benefit?
Those who got Leqembi in a clinical trial for 18 months experienced 27% less decline in memory and thinking relative to the group who got a placebo. It also reduced amyloid in the brain, the sticky protein that builds up in the brains of people with Alzheimer’s and is considered a hallmark of the disease.
Howard Fillit, MD, cofounder and chief science officer of the Alzheimer’s Drug Discovery Foundation, says, “It’s the first phase 3 study in our field of a disease-modifying drug where the clinical efficacy was very clear.”
Concerns about side effects
The drug has raised safety concerns as it has been linked with certain serious adverse events, including brain swelling and bleeding. In the trial, 14% of patients who received the drug experienced side effects that included brain swelling and bleeding, compared with about 11% in the placebo group.
Scientists have reportedly linked three deaths during the clinical trial to lecanemab, though it is unclear whether it caused the deaths.
Dr. Fillit notes that the first two people who died were on blood thinners when they received lecanemab.
“There are things about the use of the drug in the real world that we need to work out, especially in the context of people with comorbidities,” he says.
The third death is a little different, Dr. Fillit says. The patient, who had a stroke, showed signs of vasculitis, or inflammation of the blood vessels.
“We don’t know exactly what happened, but we do know it was very, very rare” among the people involved in the trials, he says.
Dr. Edelmayer says that the most common reported side effects during the trials were infusion-related reactions, headache, and amyloid-related imaging abnormalities (ARIA). According to the FDA, these abnormalities “are known to occur with antibodies of this class. ARIA usually does not have symptoms, although serious and life-threatening events rarely may occur.”
The FDA has added these as warnings to the drug’s label, describing the possible infusion-related reactions as flu-like symptoms, nausea, vomiting, and changes in blood pressure.
How much will it cost?
Eisai says that lecanemab will cost $26,500 a year.
In a draft report released in December, the Institute for Clinical and Economic Review said a price ranging from $8,500 to $20,600 a year would make the drug cost-effective. While the group has no authority to set prices, many large health insurers consider its reports when they negotiate prices and some drugmakers take into account ICER’s recommendations when setting prices.
An editorial in The Lancet last month warns that the cost will likely be “prohibitive” for low- and middle-income countries and many health systems don’t have the infrastructure for a widespread rollout.
Will Medicare cover it?
The Centers for Medicare & Medicaid Services, which runs Medicare, which covers most people with Alzheimer’s, has indicated it won’t broadly cover amyloid-lowering drugs until the drug gets full U.S. approval based on clinical benefits, as opposed to accelerated approval.
That means people would have to pay thousands out of pocket at first to get it.
The CMS decision effectively denies Medicare coverage of fast-tracked FDA-approved medications for Alzheimer’s disease unless the person is enrolled in an approved clinical trial.
On Dec. 19, the Alzheimer’s Association filed a formal request asking CMS to remove the trial-only requirement and provide full and unrestricted coverage for FDA-approved Alzheimer’s treatments.
CMS says in a statement issued after the announcement: “Because Eisai’s product, lecanemab, was granted accelerated approval by the FDA, it falls under CMS’s existing national coverage determination. CMS is examining available information and may reconsider its current coverage based on this review.”
“If lecanemab subsequently receives traditional FDA approval, CMS would provide broader coverage,” the statement says.
Who benefits most from this drug?
Lecanemab is a treatment for people with early-stage Alzheimer’s disease who have amyloid in their brain. This means people with other types of dementia, or those in the later stages of Alzheimer’s disease, are not likely to improve with this drug.
Who makes lecanemab?
Japan-based Eisai is developing the drug, a monoclonal antibody, in collaboration with the U.S. company Biogen.
What’s the Alzheimer’s Association’s view?
The association urged accelerated FDA approval. In a statement, it says it “welcomes and is further encouraged” by the clinical trial results.
It says data published in the New England Journal of Medicine confirms lecanemab “can meaningfully change the course of the disease for people in the earliest stages of Alzheimer’s disease.”
“We are energized at the progress we are seeing in the research pipeline. The science is telling us that although antiamyloid treatments are not a cure – they are not going to be the end of treating Alzheimer’s – they are certainly the beginning,” Dr. Edelmayer says.
Are there alternatives?
The FDA gave accelerated approval to Biogen to produce another drug for Alzheimer’s, Aduhelm (aducanemab), in 2021, but the move was controversial as the drug’s effectiveness was widely questioned. It has since largely been pulled from the market.
Aduhelm had been the first approved early-stage Alzheimer’s treatment since 2003.
A version of this article first appeared on WebMD.com.
, offering hope where there has been little for patients and their families affected by the devastating disease.
More than 6 million people in the United States live with Alzheimer’s.
It’s not a cure, but the drug, given intravenously every 2 weeks, has shown moderate positive effects in clinical trials in slowing early-stage disease.
But many are wary. As explained in an editorial in the journal The Lancet, “The Alzheimer’s disease community has become accustomed to false hope, disappointment, and controversy.”
Some worry about lecanemab’s safety as some people in clinical trials experienced serious side effects of bleeding and swelling in the brain. Scientists recently attributed a third death to lecanemab, brand name Leqembi, though the drugmaker disputed the medication was the cause.
So what should patients and their families make of this news? Here we answer some of the top questions surrounding the drug.
What does the FDA action mean?
The FDA granted accelerated approval to Leqembi after it showed positive trial results in slowing the progression of early-stage disease.
The FDA can grant accelerated approval for drugs that treat serious conditions and fill an unmet medical need while drugs continue to be studied in larger trials.
With the FDA approval in hand, doctors can now prescribe the medication.
Rebecca Edelmayer, PhD, the Alzheimer’s Association senior director of scientific engagement, says that with the FDA’s move, ramping up manufacturing – and eventually nationwide distribution and implementation – will take some time.
“Ask your doctor about availability,” she says. “The main issue is that, without insurance and Medicare coverage of this class of treatments, access for those who could benefit from the newly approved treatment will only be available to those who can pay out-of-pocket. Without coverage, people simply won’t be able to get the treatment.”
The Washington Post reports that with accelerated approval, drugmaker Eisai is expected to immediately apply for full FDA approval, which wouldn’t be likely to come before later this year. Full approval could help clear the path for Medicare coverage of the drug.
Potential benefit?
Those who got Leqembi in a clinical trial for 18 months experienced 27% less decline in memory and thinking relative to the group who got a placebo. It also reduced amyloid in the brain, the sticky protein that builds up in the brains of people with Alzheimer’s and is considered a hallmark of the disease.
Howard Fillit, MD, cofounder and chief science officer of the Alzheimer’s Drug Discovery Foundation, says, “It’s the first phase 3 study in our field of a disease-modifying drug where the clinical efficacy was very clear.”
Concerns about side effects
The drug has raised safety concerns as it has been linked with certain serious adverse events, including brain swelling and bleeding. In the trial, 14% of patients who received the drug experienced side effects that included brain swelling and bleeding, compared with about 11% in the placebo group.
Scientists have reportedly linked three deaths during the clinical trial to lecanemab, though it is unclear whether it caused the deaths.
Dr. Fillit notes that the first two people who died were on blood thinners when they received lecanemab.
“There are things about the use of the drug in the real world that we need to work out, especially in the context of people with comorbidities,” he says.
The third death is a little different, Dr. Fillit says. The patient, who had a stroke, showed signs of vasculitis, or inflammation of the blood vessels.
“We don’t know exactly what happened, but we do know it was very, very rare” among the people involved in the trials, he says.
Dr. Edelmayer says that the most common reported side effects during the trials were infusion-related reactions, headache, and amyloid-related imaging abnormalities (ARIA). According to the FDA, these abnormalities “are known to occur with antibodies of this class. ARIA usually does not have symptoms, although serious and life-threatening events rarely may occur.”
The FDA has added these as warnings to the drug’s label, describing the possible infusion-related reactions as flu-like symptoms, nausea, vomiting, and changes in blood pressure.
How much will it cost?
Eisai says that lecanemab will cost $26,500 a year.
In a draft report released in December, the Institute for Clinical and Economic Review said a price ranging from $8,500 to $20,600 a year would make the drug cost-effective. While the group has no authority to set prices, many large health insurers consider its reports when they negotiate prices and some drugmakers take into account ICER’s recommendations when setting prices.
An editorial in The Lancet last month warns that the cost will likely be “prohibitive” for low- and middle-income countries and many health systems don’t have the infrastructure for a widespread rollout.
Will Medicare cover it?
The Centers for Medicare & Medicaid Services, which runs Medicare, which covers most people with Alzheimer’s, has indicated it won’t broadly cover amyloid-lowering drugs until the drug gets full U.S. approval based on clinical benefits, as opposed to accelerated approval.
That means people would have to pay thousands out of pocket at first to get it.
The CMS decision effectively denies Medicare coverage of fast-tracked FDA-approved medications for Alzheimer’s disease unless the person is enrolled in an approved clinical trial.
On Dec. 19, the Alzheimer’s Association filed a formal request asking CMS to remove the trial-only requirement and provide full and unrestricted coverage for FDA-approved Alzheimer’s treatments.
CMS says in a statement issued after the announcement: “Because Eisai’s product, lecanemab, was granted accelerated approval by the FDA, it falls under CMS’s existing national coverage determination. CMS is examining available information and may reconsider its current coverage based on this review.”
“If lecanemab subsequently receives traditional FDA approval, CMS would provide broader coverage,” the statement says.
Who benefits most from this drug?
Lecanemab is a treatment for people with early-stage Alzheimer’s disease who have amyloid in their brain. This means people with other types of dementia, or those in the later stages of Alzheimer’s disease, are not likely to improve with this drug.
Who makes lecanemab?
Japan-based Eisai is developing the drug, a monoclonal antibody, in collaboration with the U.S. company Biogen.
What’s the Alzheimer’s Association’s view?
The association urged accelerated FDA approval. In a statement, it says it “welcomes and is further encouraged” by the clinical trial results.
It says data published in the New England Journal of Medicine confirms lecanemab “can meaningfully change the course of the disease for people in the earliest stages of Alzheimer’s disease.”
“We are energized at the progress we are seeing in the research pipeline. The science is telling us that although antiamyloid treatments are not a cure – they are not going to be the end of treating Alzheimer’s – they are certainly the beginning,” Dr. Edelmayer says.
Are there alternatives?
The FDA gave accelerated approval to Biogen to produce another drug for Alzheimer’s, Aduhelm (aducanemab), in 2021, but the move was controversial as the drug’s effectiveness was widely questioned. It has since largely been pulled from the market.
Aduhelm had been the first approved early-stage Alzheimer’s treatment since 2003.
A version of this article first appeared on WebMD.com.
, offering hope where there has been little for patients and their families affected by the devastating disease.
More than 6 million people in the United States live with Alzheimer’s.
It’s not a cure, but the drug, given intravenously every 2 weeks, has shown moderate positive effects in clinical trials in slowing early-stage disease.
But many are wary. As explained in an editorial in the journal The Lancet, “The Alzheimer’s disease community has become accustomed to false hope, disappointment, and controversy.”
Some worry about lecanemab’s safety as some people in clinical trials experienced serious side effects of bleeding and swelling in the brain. Scientists recently attributed a third death to lecanemab, brand name Leqembi, though the drugmaker disputed the medication was the cause.
So what should patients and their families make of this news? Here we answer some of the top questions surrounding the drug.
What does the FDA action mean?
The FDA granted accelerated approval to Leqembi after it showed positive trial results in slowing the progression of early-stage disease.
The FDA can grant accelerated approval for drugs that treat serious conditions and fill an unmet medical need while drugs continue to be studied in larger trials.
With the FDA approval in hand, doctors can now prescribe the medication.
Rebecca Edelmayer, PhD, the Alzheimer’s Association senior director of scientific engagement, says that with the FDA’s move, ramping up manufacturing – and eventually nationwide distribution and implementation – will take some time.
“Ask your doctor about availability,” she says. “The main issue is that, without insurance and Medicare coverage of this class of treatments, access for those who could benefit from the newly approved treatment will only be available to those who can pay out-of-pocket. Without coverage, people simply won’t be able to get the treatment.”
The Washington Post reports that with accelerated approval, drugmaker Eisai is expected to immediately apply for full FDA approval, which wouldn’t be likely to come before later this year. Full approval could help clear the path for Medicare coverage of the drug.
Potential benefit?
Those who got Leqembi in a clinical trial for 18 months experienced 27% less decline in memory and thinking relative to the group who got a placebo. It also reduced amyloid in the brain, the sticky protein that builds up in the brains of people with Alzheimer’s and is considered a hallmark of the disease.
Howard Fillit, MD, cofounder and chief science officer of the Alzheimer’s Drug Discovery Foundation, says, “It’s the first phase 3 study in our field of a disease-modifying drug where the clinical efficacy was very clear.”
Concerns about side effects
The drug has raised safety concerns as it has been linked with certain serious adverse events, including brain swelling and bleeding. In the trial, 14% of patients who received the drug experienced side effects that included brain swelling and bleeding, compared with about 11% in the placebo group.
Scientists have reportedly linked three deaths during the clinical trial to lecanemab, though it is unclear whether it caused the deaths.
Dr. Fillit notes that the first two people who died were on blood thinners when they received lecanemab.
“There are things about the use of the drug in the real world that we need to work out, especially in the context of people with comorbidities,” he says.
The third death is a little different, Dr. Fillit says. The patient, who had a stroke, showed signs of vasculitis, or inflammation of the blood vessels.
“We don’t know exactly what happened, but we do know it was very, very rare” among the people involved in the trials, he says.
Dr. Edelmayer says that the most common reported side effects during the trials were infusion-related reactions, headache, and amyloid-related imaging abnormalities (ARIA). According to the FDA, these abnormalities “are known to occur with antibodies of this class. ARIA usually does not have symptoms, although serious and life-threatening events rarely may occur.”
The FDA has added these as warnings to the drug’s label, describing the possible infusion-related reactions as flu-like symptoms, nausea, vomiting, and changes in blood pressure.
How much will it cost?
Eisai says that lecanemab will cost $26,500 a year.
In a draft report released in December, the Institute for Clinical and Economic Review said a price ranging from $8,500 to $20,600 a year would make the drug cost-effective. While the group has no authority to set prices, many large health insurers consider its reports when they negotiate prices and some drugmakers take into account ICER’s recommendations when setting prices.
An editorial in The Lancet last month warns that the cost will likely be “prohibitive” for low- and middle-income countries and many health systems don’t have the infrastructure for a widespread rollout.
Will Medicare cover it?
The Centers for Medicare & Medicaid Services, which runs Medicare, which covers most people with Alzheimer’s, has indicated it won’t broadly cover amyloid-lowering drugs until the drug gets full U.S. approval based on clinical benefits, as opposed to accelerated approval.
That means people would have to pay thousands out of pocket at first to get it.
The CMS decision effectively denies Medicare coverage of fast-tracked FDA-approved medications for Alzheimer’s disease unless the person is enrolled in an approved clinical trial.
On Dec. 19, the Alzheimer’s Association filed a formal request asking CMS to remove the trial-only requirement and provide full and unrestricted coverage for FDA-approved Alzheimer’s treatments.
CMS says in a statement issued after the announcement: “Because Eisai’s product, lecanemab, was granted accelerated approval by the FDA, it falls under CMS’s existing national coverage determination. CMS is examining available information and may reconsider its current coverage based on this review.”
“If lecanemab subsequently receives traditional FDA approval, CMS would provide broader coverage,” the statement says.
Who benefits most from this drug?
Lecanemab is a treatment for people with early-stage Alzheimer’s disease who have amyloid in their brain. This means people with other types of dementia, or those in the later stages of Alzheimer’s disease, are not likely to improve with this drug.
Who makes lecanemab?
Japan-based Eisai is developing the drug, a monoclonal antibody, in collaboration with the U.S. company Biogen.
What’s the Alzheimer’s Association’s view?
The association urged accelerated FDA approval. In a statement, it says it “welcomes and is further encouraged” by the clinical trial results.
It says data published in the New England Journal of Medicine confirms lecanemab “can meaningfully change the course of the disease for people in the earliest stages of Alzheimer’s disease.”
“We are energized at the progress we are seeing in the research pipeline. The science is telling us that although antiamyloid treatments are not a cure – they are not going to be the end of treating Alzheimer’s – they are certainly the beginning,” Dr. Edelmayer says.
Are there alternatives?
The FDA gave accelerated approval to Biogen to produce another drug for Alzheimer’s, Aduhelm (aducanemab), in 2021, but the move was controversial as the drug’s effectiveness was widely questioned. It has since largely been pulled from the market.
Aduhelm had been the first approved early-stage Alzheimer’s treatment since 2003.
A version of this article first appeared on WebMD.com.