Neurology

TOPLINE:

Food insecurity among older adults is associated with increased dementia risk, poorer memory function, and faster memory decline, new research indicates.

METHODOLOGY:

• Researchers analyzed data on 7,012 adults (mean age, 67 years; 59% women) from the U.S. Health and Retirement Study.
• Food security status was assessed in 2013 using a validated survey, with cognitive outcomes evaluated between 2014 and 2018.
• Analyses were adjusted for demographics, socioeconomics, and health factors.

TAKEAWAY:

• About 18% of adults were food insecure, with 10% reporting low food security and 8% very low food security. About 11% of those aged 65+ in 2013 were food insecure.
• The odds of dementia were 38% higher (odds ratio, 1.38; 95% confidence interval [CI], 1.15-1.67) in adults with low food security and 37% higher (OR, 1.37; 95% CI, 1.11-1.59) in those with very low food security, compared with food-secure adults.
• Translated to years of excess cognitive aging, food insecurity was associated with increased dementia risk equivalent to roughly 1.3 excess years of aging.
• Low and very low food security were also associated with lower memory levels and faster age-related memory decline.

IN PRACTICE:

“Our study contributes to a limited literature by capitalizing on a large and diverse sample, validated exposure and outcome measures, and longitudinal data to robustly evaluate these associations, providing evidence in support of the connection between food insecurity in older adulthood and subsequent brain health,” the authors wrote. “Our findings highlight the need to improve food security in older adults and that doing so may protect individuals from cognitive decline and dementia.”

SOURCE:

The study, with first author Haobing Qian, PhD, with the University of California, San Francisco, was published online  in JAMA Network Open.

LIMITATIONS:

Residual confounding cannot be ruled out. Food insecurity was not assessed prior to 2013. The researchers lacked information on clinical dementia diagnoses.

DISCLOSURES:

The study was supported by grants from the National Institutes of Health. The authors reported no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Food insecurity among older adults is associated with increased dementia risk, poorer memory function, and faster memory decline, new research indicates.

METHODOLOGY:

• Researchers analyzed data on 7,012 adults (mean age, 67 years; 59% women) from the U.S. Health and Retirement Study.
• Food security status was assessed in 2013 using a validated survey, with cognitive outcomes evaluated between 2014 and 2018.
• Analyses were adjusted for demographics, socioeconomics, and health factors.

TAKEAWAY:

• About 18% of adults were food insecure, with 10% reporting low food security and 8% very low food security. About 11% of those aged 65+ in 2013 were food insecure.
• The odds of dementia were 38% higher (odds ratio, 1.38; 95% confidence interval [CI], 1.15-1.67) in adults with low food security and 37% higher (OR, 1.37; 95% CI, 1.11-1.59) in those with very low food security, compared with food-secure adults.
• Translated to years of excess cognitive aging, food insecurity was associated with increased dementia risk equivalent to roughly 1.3 excess years of aging.
• Low and very low food security were also associated with lower memory levels and faster age-related memory decline.

IN PRACTICE:

“Our study contributes to a limited literature by capitalizing on a large and diverse sample, validated exposure and outcome measures, and longitudinal data to robustly evaluate these associations, providing evidence in support of the connection between food insecurity in older adulthood and subsequent brain health,” the authors wrote. “Our findings highlight the need to improve food security in older adults and that doing so may protect individuals from cognitive decline and dementia.”

SOURCE:

The study, with first author Haobing Qian, PhD, with the University of California, San Francisco, was published online  in JAMA Network Open.

LIMITATIONS:

Residual confounding cannot be ruled out. Food insecurity was not assessed prior to 2013. The researchers lacked information on clinical dementia diagnoses.

DISCLOSURES:

The study was supported by grants from the National Institutes of Health. The authors reported no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

TOPLINE:

Food insecurity among older adults is associated with increased dementia risk, poorer memory function, and faster memory decline, new research indicates.

METHODOLOGY:

• Researchers analyzed data on 7,012 adults (mean age, 67 years; 59% women) from the U.S. Health and Retirement Study.
• Food security status was assessed in 2013 using a validated survey, with cognitive outcomes evaluated between 2014 and 2018.
• Analyses were adjusted for demographics, socioeconomics, and health factors.

TAKEAWAY:

• About 18% of adults were food insecure, with 10% reporting low food security and 8% very low food security. About 11% of those aged 65+ in 2013 were food insecure.
• The odds of dementia were 38% higher (odds ratio, 1.38; 95% confidence interval [CI], 1.15-1.67) in adults with low food security and 37% higher (OR, 1.37; 95% CI, 1.11-1.59) in those with very low food security, compared with food-secure adults.
• Translated to years of excess cognitive aging, food insecurity was associated with increased dementia risk equivalent to roughly 1.3 excess years of aging.
• Low and very low food security were also associated with lower memory levels and faster age-related memory decline.

IN PRACTICE:

“Our study contributes to a limited literature by capitalizing on a large and diverse sample, validated exposure and outcome measures, and longitudinal data to robustly evaluate these associations, providing evidence in support of the connection between food insecurity in older adulthood and subsequent brain health,” the authors wrote. “Our findings highlight the need to improve food security in older adults and that doing so may protect individuals from cognitive decline and dementia.”

SOURCE:

The study, with first author Haobing Qian, PhD, with the University of California, San Francisco, was published online  in JAMA Network Open.

LIMITATIONS:

Residual confounding cannot be ruled out. Food insecurity was not assessed prior to 2013. The researchers lacked information on clinical dementia diagnoses.

DISCLOSURES:

The study was supported by grants from the National Institutes of Health. The authors reported no relevant conflicts of interest.

A version of this article first appeared on Medscape.com.

In the first study of its kind, U.K. and French researchers reported that exercise positively affected physical and cognitive health in persons with Down syndrome. “The findings are significant and offer a crucial challenge to the [Down syndrome] and wider societies,” wrote a team led by Dan Gordon, PhD, associate professor of cardiorespiratory exercise physiology at Anglia Ruskin University in Cambridge, England. “Impact of Prescribed Exercise on the Physical and Cognitive Health of Adults with Down Syndrome: The MinDSets Study” was published in the International Journal of Environmental Research and Public Health.

“Through the simple application of walking, a form of exercise which requires little to no equipment or expense, there were significant increases in cognitive and executive function, reflecting improved capabilities in key attributes of information processing, vigilance, and selective attention,” the researchers wrote.

Dr. Gordon

“Increased cognitive function will help foster increased societal integration and quality of life, which, given that this is the first generation of those with [Down syndrome] to outlive their parents and caregivers, is of importance,” they wrote.

For example, those in an exercise-only intervention arm had an 11.4% improvement on the distance covered in the Six-Minute Walk Test, going from a mean of 498.8 meters before intervention to 522.1 meters afterward. Those in a group that combined group exercise with cognitive training increased the distance walked by 9.9%, or 49.2 meters. Groups that got cognitive training only or no intervention showed no significant changes.

In measures of cognitive function, the exercise group showed a 38% increase in selective attention, with the cognitive and combined groups showing changes for the same measure of 16.5% and 55.3%, respectively. The changes for concentration in the exercise-alone group was 31.5%, while those receiving cognitive training alone or combined exercise plus cognitive training showed improvements in concentration of 21% and 15%, respectively.

Asked why a combination intervention was not superior to exercise alone, Dr. Gordon said in an interview, “Something we’re looking at in the data but can’t fully confirm is that the combined group started to become fatigued due to the double dose of the intervention, and this prevented them in the final tests from doing quite so well as the exercise-alone group. Irrespective of the magnitude of change, any cognitive adaptation observed will be beneficial to this population.”

The evidence for the benefits of exercise on both physical and cognitive health in a non–Down syndrome population are well established, he said, but there were few data on its effect on the Down syndrome population.

One small study showed physical and neurocognitive benefits with resistance training.

“The evidence from previous studies showed increased levels of inactivity and sitting time in Down syndrome individuals compared with non–[Down syndrome] controls, so we hypothesized that exercise, albeit small amounts, would increase their physical fitness,” Dr. Gordon said.

His team also hypothesized that walking would stimulate cognitive development since it requires heightened cognitive engagement compared with inactivity. “What surprised us was the degree of improvement,” Dr. Gordon said.

The process of walking requires the brain to interpret information on a real-time basis from both internal and external cues, he continued. “For most of us this process requires low-level cognitive engagement. However, in the [Down syndrome] population, where motor control is impaired and accompanied by poor muscle tone, walking imposes a heightened cognitive load.” It requires them to concentrate on the action, be aware of their surroundings, and make the right decisions, all of which stimulate areas of the brain that control these functions.
 

Study details

Eighty-three adult participants were available for final analysis – 67 from North America, 8 from Europe, 5 from Africa, 2 from Asia, and 1 from Australia. The mean age of participants was 27.1 years, 40 were female, and all had caregiver support during the study.

Those unable to visualize information on computer and mobile/tablet screens or to listen to instructions/auditory cues were excluded. All were provided with instructions and a mobile monitoring tool set to record steps completed, distances covered, speeds, and heart rate.

Each was assigned to one of four groups. Exercise intervention-only consisted of 8 weeks of cardiorespiratory exercise defined as either walking or jogging three times a week for 30 minutes. Cognitive training included eight levels (about 20 minutes) of cognitive and executive function exercises six times per week. The combined group completed both the cardiorespiratory and cognitive interventions, while the fourth group acted as controls with no intervention.

According to the authors, the study offers a real-life scenario that can be readily adopted within the Down syndrome community.

This study was commissioned by the Canadian Down Syndrome Society. The authors had no conflicts of interest to declare.

In the first study of its kind, U.K. and French researchers reported that exercise positively affected physical and cognitive health in persons with Down syndrome. “The findings are significant and offer a crucial challenge to the [Down syndrome] and wider societies,” wrote a team led by Dan Gordon, PhD, associate professor of cardiorespiratory exercise physiology at Anglia Ruskin University in Cambridge, England. “Impact of Prescribed Exercise on the Physical and Cognitive Health of Adults with Down Syndrome: The MinDSets Study” was published in the International Journal of Environmental Research and Public Health.

“Through the simple application of walking, a form of exercise which requires little to no equipment or expense, there were significant increases in cognitive and executive function, reflecting improved capabilities in key attributes of information processing, vigilance, and selective attention,” the researchers wrote.

Dr. Gordon

“Increased cognitive function will help foster increased societal integration and quality of life, which, given that this is the first generation of those with [Down syndrome] to outlive their parents and caregivers, is of importance,” they wrote.

For example, those in an exercise-only intervention arm had an 11.4% improvement on the distance covered in the Six-Minute Walk Test, going from a mean of 498.8 meters before intervention to 522.1 meters afterward. Those in a group that combined group exercise with cognitive training increased the distance walked by 9.9%, or 49.2 meters. Groups that got cognitive training only or no intervention showed no significant changes.

In measures of cognitive function, the exercise group showed a 38% increase in selective attention, with the cognitive and combined groups showing changes for the same measure of 16.5% and 55.3%, respectively. The changes for concentration in the exercise-alone group was 31.5%, while those receiving cognitive training alone or combined exercise plus cognitive training showed improvements in concentration of 21% and 15%, respectively.

Asked why a combination intervention was not superior to exercise alone, Dr. Gordon said in an interview, “Something we’re looking at in the data but can’t fully confirm is that the combined group started to become fatigued due to the double dose of the intervention, and this prevented them in the final tests from doing quite so well as the exercise-alone group. Irrespective of the magnitude of change, any cognitive adaptation observed will be beneficial to this population.”

The evidence for the benefits of exercise on both physical and cognitive health in a non–Down syndrome population are well established, he said, but there were few data on its effect on the Down syndrome population.

One small study showed physical and neurocognitive benefits with resistance training.

“The evidence from previous studies showed increased levels of inactivity and sitting time in Down syndrome individuals compared with non–[Down syndrome] controls, so we hypothesized that exercise, albeit small amounts, would increase their physical fitness,” Dr. Gordon said.

His team also hypothesized that walking would stimulate cognitive development since it requires heightened cognitive engagement compared with inactivity. “What surprised us was the degree of improvement,” Dr. Gordon said.

The process of walking requires the brain to interpret information on a real-time basis from both internal and external cues, he continued. “For most of us this process requires low-level cognitive engagement. However, in the [Down syndrome] population, where motor control is impaired and accompanied by poor muscle tone, walking imposes a heightened cognitive load.” It requires them to concentrate on the action, be aware of their surroundings, and make the right decisions, all of which stimulate areas of the brain that control these functions.
 

Study details

Eighty-three adult participants were available for final analysis – 67 from North America, 8 from Europe, 5 from Africa, 2 from Asia, and 1 from Australia. The mean age of participants was 27.1 years, 40 were female, and all had caregiver support during the study.

Those unable to visualize information on computer and mobile/tablet screens or to listen to instructions/auditory cues were excluded. All were provided with instructions and a mobile monitoring tool set to record steps completed, distances covered, speeds, and heart rate.

Each was assigned to one of four groups. Exercise intervention-only consisted of 8 weeks of cardiorespiratory exercise defined as either walking or jogging three times a week for 30 minutes. Cognitive training included eight levels (about 20 minutes) of cognitive and executive function exercises six times per week. The combined group completed both the cardiorespiratory and cognitive interventions, while the fourth group acted as controls with no intervention.

According to the authors, the study offers a real-life scenario that can be readily adopted within the Down syndrome community.

This study was commissioned by the Canadian Down Syndrome Society. The authors had no conflicts of interest to declare.

In the first study of its kind, U.K. and French researchers reported that exercise positively affected physical and cognitive health in persons with Down syndrome. “The findings are significant and offer a crucial challenge to the [Down syndrome] and wider societies,” wrote a team led by Dan Gordon, PhD, associate professor of cardiorespiratory exercise physiology at Anglia Ruskin University in Cambridge, England. “Impact of Prescribed Exercise on the Physical and Cognitive Health of Adults with Down Syndrome: The MinDSets Study” was published in the International Journal of Environmental Research and Public Health.

“Through the simple application of walking, a form of exercise which requires little to no equipment or expense, there were significant increases in cognitive and executive function, reflecting improved capabilities in key attributes of information processing, vigilance, and selective attention,” the researchers wrote.

Dr. Gordon

“Increased cognitive function will help foster increased societal integration and quality of life, which, given that this is the first generation of those with [Down syndrome] to outlive their parents and caregivers, is of importance,” they wrote.

For example, those in an exercise-only intervention arm had an 11.4% improvement on the distance covered in the Six-Minute Walk Test, going from a mean of 498.8 meters before intervention to 522.1 meters afterward. Those in a group that combined group exercise with cognitive training increased the distance walked by 9.9%, or 49.2 meters. Groups that got cognitive training only or no intervention showed no significant changes.

In measures of cognitive function, the exercise group showed a 38% increase in selective attention, with the cognitive and combined groups showing changes for the same measure of 16.5% and 55.3%, respectively. The changes for concentration in the exercise-alone group was 31.5%, while those receiving cognitive training alone or combined exercise plus cognitive training showed improvements in concentration of 21% and 15%, respectively.

Asked why a combination intervention was not superior to exercise alone, Dr. Gordon said in an interview, “Something we’re looking at in the data but can’t fully confirm is that the combined group started to become fatigued due to the double dose of the intervention, and this prevented them in the final tests from doing quite so well as the exercise-alone group. Irrespective of the magnitude of change, any cognitive adaptation observed will be beneficial to this population.”

The evidence for the benefits of exercise on both physical and cognitive health in a non–Down syndrome population are well established, he said, but there were few data on its effect on the Down syndrome population.

One small study showed physical and neurocognitive benefits with resistance training.

“The evidence from previous studies showed increased levels of inactivity and sitting time in Down syndrome individuals compared with non–[Down syndrome] controls, so we hypothesized that exercise, albeit small amounts, would increase their physical fitness,” Dr. Gordon said.

His team also hypothesized that walking would stimulate cognitive development since it requires heightened cognitive engagement compared with inactivity. “What surprised us was the degree of improvement,” Dr. Gordon said.

The process of walking requires the brain to interpret information on a real-time basis from both internal and external cues, he continued. “For most of us this process requires low-level cognitive engagement. However, in the [Down syndrome] population, where motor control is impaired and accompanied by poor muscle tone, walking imposes a heightened cognitive load.” It requires them to concentrate on the action, be aware of their surroundings, and make the right decisions, all of which stimulate areas of the brain that control these functions.
 

Study details

Eighty-three adult participants were available for final analysis – 67 from North America, 8 from Europe, 5 from Africa, 2 from Asia, and 1 from Australia. The mean age of participants was 27.1 years, 40 were female, and all had caregiver support during the study.

Those unable to visualize information on computer and mobile/tablet screens or to listen to instructions/auditory cues were excluded. All were provided with instructions and a mobile monitoring tool set to record steps completed, distances covered, speeds, and heart rate.

Each was assigned to one of four groups. Exercise intervention-only consisted of 8 weeks of cardiorespiratory exercise defined as either walking or jogging three times a week for 30 minutes. Cognitive training included eight levels (about 20 minutes) of cognitive and executive function exercises six times per week. The combined group completed both the cardiorespiratory and cognitive interventions, while the fourth group acted as controls with no intervention.

According to the authors, the study offers a real-life scenario that can be readily adopted within the Down syndrome community.

This study was commissioned by the Canadian Down Syndrome Society. The authors had no conflicts of interest to declare.

The antiseizure drugs levetiracetam (Keppra, Keppra XR, Elepsia XR, Spritam, generic) and clobazam (Onfi, Sympazan, generic) can cause a rare but serious drug hypersensitivity reaction that can be life threatening if not detected and treated promptly, the Food and Drug Administration warns in an alert.

Known as drug reaction with eosinophilia and systemic symptoms (DRESS), it may start as a rash but can quickly progress and cause injury to internal organs, the need for hospitalization, and death, the FDA notes.

A search of the FDA Adverse Event Reporting System (FAERS) and the medical literature through March 2023 identified 32 serious cases of DRESS worldwide that were associated with levetiracetam.

Three cases occurred in the United States, and 29 occurred abroad. In all 32 cases, the patients were hospitalized and received medical treatment; in 2 cases, the patients died.

The median time to onset of DRESS in the levetiracetam cases was 24 days; times ranged from 7 to 170 days. The reported signs and symptoms included skin rash (n = 22), fever (n = 20), eosinophilia (n = 17), lymph node swelling (n = 9), and atypical lymphocytes (n = 4).

Twenty-two levetiracetam-associated cases of DRESS involved injury to one or more organs, including the liver, lungs, kidneys, and gallbladder.

In 25 of the 29 cases for which information on treatment discontinuation was available, DRESS symptoms resolved when levetiracetam was discontinued.

As for clobazam, a search of FAERS and the medical literature through July 2023 identified 10 serious cases of DRESS worldwide – 1 in the United States and 9 abroad. All 10 patients were hospitalized and received medical treatment. No deaths were reported.

The median time to onset of clobazam-associated DRESS was 21.5 days (range, 7-103 days). The reported signs and symptoms included skin rash (n = 10), fever (n = 8), eosinophilia (n = 7), facial swelling (n = 7), leukocytosis (n = 4), lymph node swelling (n = 4), and leukopenia/thrombocytopenia (n = 1).

In nine cases, there was injury to one or more organs, including the liver, kidneys, and gastrointestinal tract.

DRESS symptoms resolved in all 10 cases when treatment with clobazam was stopped. DRESS and other serious skin reactions reported with clobazam, a benzodiazepine, have not generally been associated with other benzodiazepines, the FDA notes.

Label updates

As a result of these cases, warnings about the risk of DRESS will be added to the prescribing information and patient medication guides for these medicines, the FDA announced.

“Health care professionals should be aware that prompt recognition and early treatment is important for improving DRESS outcomes and decreasing mortality,” the FDA said.

They noted that diagnosis is often difficult because early signs and symptoms, such as fever and swollen lymph nodes, may be present without evidence of a rash.

DRESS may develop 2-8 weeks after starting levetiracetam or clobazam. Symptoms and intensity can vary widely.

DRESS can also be confused with other serious skin reactions, such as Stevens-Johnson syndrome and toxic epidermal necrolysis.

The FDA says patients should be advised of the signs and symptoms of DRESS and be told to stop taking the medicine and seek immediate medical attention if DRESS is suspected during treatment with levetiracetam or clobazam.

Adverse reactions with these medications should be reported to the FDA’s MedWatch program.

A version of this article appeared on Medscape.com.

The antiseizure drugs levetiracetam (Keppra, Keppra XR, Elepsia XR, Spritam, generic) and clobazam (Onfi, Sympazan, generic) can cause a rare but serious drug hypersensitivity reaction that can be life threatening if not detected and treated promptly, the Food and Drug Administration warns in an alert.

Known as drug reaction with eosinophilia and systemic symptoms (DRESS), it may start as a rash but can quickly progress and cause injury to internal organs, the need for hospitalization, and death, the FDA notes.

A search of the FDA Adverse Event Reporting System (FAERS) and the medical literature through March 2023 identified 32 serious cases of DRESS worldwide that were associated with levetiracetam.

Three cases occurred in the United States, and 29 occurred abroad. In all 32 cases, the patients were hospitalized and received medical treatment; in 2 cases, the patients died.

The median time to onset of DRESS in the levetiracetam cases was 24 days; times ranged from 7 to 170 days. The reported signs and symptoms included skin rash (n = 22), fever (n = 20), eosinophilia (n = 17), lymph node swelling (n = 9), and atypical lymphocytes (n = 4).

Twenty-two levetiracetam-associated cases of DRESS involved injury to one or more organs, including the liver, lungs, kidneys, and gallbladder.

In 25 of the 29 cases for which information on treatment discontinuation was available, DRESS symptoms resolved when levetiracetam was discontinued.

As for clobazam, a search of FAERS and the medical literature through July 2023 identified 10 serious cases of DRESS worldwide – 1 in the United States and 9 abroad. All 10 patients were hospitalized and received medical treatment. No deaths were reported.

The median time to onset of clobazam-associated DRESS was 21.5 days (range, 7-103 days). The reported signs and symptoms included skin rash (n = 10), fever (n = 8), eosinophilia (n = 7), facial swelling (n = 7), leukocytosis (n = 4), lymph node swelling (n = 4), and leukopenia/thrombocytopenia (n = 1).

In nine cases, there was injury to one or more organs, including the liver, kidneys, and gastrointestinal tract.

DRESS symptoms resolved in all 10 cases when treatment with clobazam was stopped. DRESS and other serious skin reactions reported with clobazam, a benzodiazepine, have not generally been associated with other benzodiazepines, the FDA notes.

Label updates

As a result of these cases, warnings about the risk of DRESS will be added to the prescribing information and patient medication guides for these medicines, the FDA announced.

“Health care professionals should be aware that prompt recognition and early treatment is important for improving DRESS outcomes and decreasing mortality,” the FDA said.

They noted that diagnosis is often difficult because early signs and symptoms, such as fever and swollen lymph nodes, may be present without evidence of a rash.

DRESS may develop 2-8 weeks after starting levetiracetam or clobazam. Symptoms and intensity can vary widely.

DRESS can also be confused with other serious skin reactions, such as Stevens-Johnson syndrome and toxic epidermal necrolysis.

The FDA says patients should be advised of the signs and symptoms of DRESS and be told to stop taking the medicine and seek immediate medical attention if DRESS is suspected during treatment with levetiracetam or clobazam.

Adverse reactions with these medications should be reported to the FDA’s MedWatch program.

A version of this article appeared on Medscape.com.

The antiseizure drugs levetiracetam (Keppra, Keppra XR, Elepsia XR, Spritam, generic) and clobazam (Onfi, Sympazan, generic) can cause a rare but serious drug hypersensitivity reaction that can be life threatening if not detected and treated promptly, the Food and Drug Administration warns in an alert.

Known as drug reaction with eosinophilia and systemic symptoms (DRESS), it may start as a rash but can quickly progress and cause injury to internal organs, the need for hospitalization, and death, the FDA notes.

A search of the FDA Adverse Event Reporting System (FAERS) and the medical literature through March 2023 identified 32 serious cases of DRESS worldwide that were associated with levetiracetam.

Three cases occurred in the United States, and 29 occurred abroad. In all 32 cases, the patients were hospitalized and received medical treatment; in 2 cases, the patients died.

The median time to onset of DRESS in the levetiracetam cases was 24 days; times ranged from 7 to 170 days. The reported signs and symptoms included skin rash (n = 22), fever (n = 20), eosinophilia (n = 17), lymph node swelling (n = 9), and atypical lymphocytes (n = 4).

Twenty-two levetiracetam-associated cases of DRESS involved injury to one or more organs, including the liver, lungs, kidneys, and gallbladder.

In 25 of the 29 cases for which information on treatment discontinuation was available, DRESS symptoms resolved when levetiracetam was discontinued.

As for clobazam, a search of FAERS and the medical literature through July 2023 identified 10 serious cases of DRESS worldwide – 1 in the United States and 9 abroad. All 10 patients were hospitalized and received medical treatment. No deaths were reported.

The median time to onset of clobazam-associated DRESS was 21.5 days (range, 7-103 days). The reported signs and symptoms included skin rash (n = 10), fever (n = 8), eosinophilia (n = 7), facial swelling (n = 7), leukocytosis (n = 4), lymph node swelling (n = 4), and leukopenia/thrombocytopenia (n = 1).

In nine cases, there was injury to one or more organs, including the liver, kidneys, and gastrointestinal tract.

DRESS symptoms resolved in all 10 cases when treatment with clobazam was stopped. DRESS and other serious skin reactions reported with clobazam, a benzodiazepine, have not generally been associated with other benzodiazepines, the FDA notes.

Label updates

As a result of these cases, warnings about the risk of DRESS will be added to the prescribing information and patient medication guides for these medicines, the FDA announced.

“Health care professionals should be aware that prompt recognition and early treatment is important for improving DRESS outcomes and decreasing mortality,” the FDA said.

They noted that diagnosis is often difficult because early signs and symptoms, such as fever and swollen lymph nodes, may be present without evidence of a rash.

DRESS may develop 2-8 weeks after starting levetiracetam or clobazam. Symptoms and intensity can vary widely.

DRESS can also be confused with other serious skin reactions, such as Stevens-Johnson syndrome and toxic epidermal necrolysis.

The FDA says patients should be advised of the signs and symptoms of DRESS and be told to stop taking the medicine and seek immediate medical attention if DRESS is suspected during treatment with levetiracetam or clobazam.

Adverse reactions with these medications should be reported to the FDA’s MedWatch program.

A version of this article appeared on Medscape.com.

TOPLINE:

An international expert consensus offers guidance to diagnose, assess, and treat adult patients experiencing drug reaction with eosinophilia and systemic symptoms (DRESS).

METHODOLOGY:

Data on the evaluation, assessment, and treatment of the rare but potentially life-threatening drug hypersensitivity reaction are lacking.

To support clinicians in diagnosing and managing DRESS, a steering committee conducted a literature review to examine current research, identify evidence, and develop consensus statements. They invited experts from 21 countries across four continents to participate in a Delphi consensus process.

An international panel of 54 experts (including 45 dermatologists) initially assessed 100 statements related to baseline workup, severity of the condition, and treatment. Two more statements were added in the second round.

After revisions and the second round, the group reached consensus for 93 statements overall.

TAKEAWAY:

The statements generating the most disagreement involved diagnosis. The group ultimately supported the value of measuring the viral load of Epstein-Barr virus, cytomegalovirus, and human herpesvirus 6 in all patients with suspected DRESS. The group also agreed on screening for hepatitis A, B, and C in cases of liver involvement and screening for hepatitis B and C before starting systemic therapy.

The group agreed with previous severity criteria that differentiate between mild, moderate, and severe DRESS based on the extent of liver, kidney, and blood involvement and the damage of other organs.

Consensus on treatment was reached for all 12 relevant statements in the first Delphi round. Recommendations included the use of corticosteroids and immediate discontinuation of the drugs causing the reaction.

IN PRACTICE:

“This Delphi exercise aimed to provide a common ground of consensus,” the authors noted. However, “each of the addressed categories needs more in-depth follow-up studies to improve the clinical management of patients.”

SOURCE:

The DRESS Delphi consensus group conducted its exercise under the leadership of Marie-Charlotte Brüggen, MD, of the University Hospital of Zürich. The consensus was published online in the JAMA Dermatology.

LIMITATIONS:

Published evidence was limited because of the low prevalence of DRESS. The consensus statements should therefore be considered with caution and in the context of a clinician’s expertise and available resources. Research gaps also persist in how DRESS may vary with region and ethnicity. The severity thresholds need validation in a revised multicenter statement.

DISCLOSURES:

The consensus review received no outside funding. Dr. Brüggen disclosed relationships with the Swiss National Science Foundation, Christine Kühne – Center for Allergy Research and Education, FreeNovation, LEO Foundation, Olga Mayenfisch Foundation, University of Zürich, LEO Pharma, Pierre Fabre Eczema Foundation, Eli Lilly, AbbVie, GSK, and AstraZeneca. Coauthors disclosed relationships with multiple pharmaceutical companies, foundations, and medical publishing companies.

A version of this article appeared on Medscape.com.

TOPLINE:

An international expert consensus offers guidance to diagnose, assess, and treat adult patients experiencing drug reaction with eosinophilia and systemic symptoms (DRESS).

METHODOLOGY:

Data on the evaluation, assessment, and treatment of the rare but potentially life-threatening drug hypersensitivity reaction are lacking.

To support clinicians in diagnosing and managing DRESS, a steering committee conducted a literature review to examine current research, identify evidence, and develop consensus statements. They invited experts from 21 countries across four continents to participate in a Delphi consensus process.

An international panel of 54 experts (including 45 dermatologists) initially assessed 100 statements related to baseline workup, severity of the condition, and treatment. Two more statements were added in the second round.

After revisions and the second round, the group reached consensus for 93 statements overall.

TAKEAWAY:

The statements generating the most disagreement involved diagnosis. The group ultimately supported the value of measuring the viral load of Epstein-Barr virus, cytomegalovirus, and human herpesvirus 6 in all patients with suspected DRESS. The group also agreed on screening for hepatitis A, B, and C in cases of liver involvement and screening for hepatitis B and C before starting systemic therapy.

The group agreed with previous severity criteria that differentiate between mild, moderate, and severe DRESS based on the extent of liver, kidney, and blood involvement and the damage of other organs.

Consensus on treatment was reached for all 12 relevant statements in the first Delphi round. Recommendations included the use of corticosteroids and immediate discontinuation of the drugs causing the reaction.

IN PRACTICE:

“This Delphi exercise aimed to provide a common ground of consensus,” the authors noted. However, “each of the addressed categories needs more in-depth follow-up studies to improve the clinical management of patients.”

SOURCE:

The DRESS Delphi consensus group conducted its exercise under the leadership of Marie-Charlotte Brüggen, MD, of the University Hospital of Zürich. The consensus was published online in the JAMA Dermatology.

LIMITATIONS:

Published evidence was limited because of the low prevalence of DRESS. The consensus statements should therefore be considered with caution and in the context of a clinician’s expertise and available resources. Research gaps also persist in how DRESS may vary with region and ethnicity. The severity thresholds need validation in a revised multicenter statement.

DISCLOSURES:

The consensus review received no outside funding. Dr. Brüggen disclosed relationships with the Swiss National Science Foundation, Christine Kühne – Center for Allergy Research and Education, FreeNovation, LEO Foundation, Olga Mayenfisch Foundation, University of Zürich, LEO Pharma, Pierre Fabre Eczema Foundation, Eli Lilly, AbbVie, GSK, and AstraZeneca. Coauthors disclosed relationships with multiple pharmaceutical companies, foundations, and medical publishing companies.

A version of this article appeared on Medscape.com.

TOPLINE:

An international expert consensus offers guidance to diagnose, assess, and treat adult patients experiencing drug reaction with eosinophilia and systemic symptoms (DRESS).

METHODOLOGY:

Data on the evaluation, assessment, and treatment of the rare but potentially life-threatening drug hypersensitivity reaction are lacking.

To support clinicians in diagnosing and managing DRESS, a steering committee conducted a literature review to examine current research, identify evidence, and develop consensus statements. They invited experts from 21 countries across four continents to participate in a Delphi consensus process.

An international panel of 54 experts (including 45 dermatologists) initially assessed 100 statements related to baseline workup, severity of the condition, and treatment. Two more statements were added in the second round.

After revisions and the second round, the group reached consensus for 93 statements overall.

TAKEAWAY:

The statements generating the most disagreement involved diagnosis. The group ultimately supported the value of measuring the viral load of Epstein-Barr virus, cytomegalovirus, and human herpesvirus 6 in all patients with suspected DRESS. The group also agreed on screening for hepatitis A, B, and C in cases of liver involvement and screening for hepatitis B and C before starting systemic therapy.

The group agreed with previous severity criteria that differentiate between mild, moderate, and severe DRESS based on the extent of liver, kidney, and blood involvement and the damage of other organs.

Consensus on treatment was reached for all 12 relevant statements in the first Delphi round. Recommendations included the use of corticosteroids and immediate discontinuation of the drugs causing the reaction.

IN PRACTICE:

“This Delphi exercise aimed to provide a common ground of consensus,” the authors noted. However, “each of the addressed categories needs more in-depth follow-up studies to improve the clinical management of patients.”

SOURCE:

The DRESS Delphi consensus group conducted its exercise under the leadership of Marie-Charlotte Brüggen, MD, of the University Hospital of Zürich. The consensus was published online in the JAMA Dermatology.

LIMITATIONS:

Published evidence was limited because of the low prevalence of DRESS. The consensus statements should therefore be considered with caution and in the context of a clinician’s expertise and available resources. Research gaps also persist in how DRESS may vary with region and ethnicity. The severity thresholds need validation in a revised multicenter statement.

DISCLOSURES:

The consensus review received no outside funding. Dr. Brüggen disclosed relationships with the Swiss National Science Foundation, Christine Kühne – Center for Allergy Research and Education, FreeNovation, LEO Foundation, Olga Mayenfisch Foundation, University of Zürich, LEO Pharma, Pierre Fabre Eczema Foundation, Eli Lilly, AbbVie, GSK, and AstraZeneca. Coauthors disclosed relationships with multiple pharmaceutical companies, foundations, and medical publishing companies.

A version of this article appeared on Medscape.com.

TOPLINE:

Posttraumatic stress disorder (PTSD) symptoms are associated with poorer cardiovascular and neurocognitive health among midlife women, particularly those who are APOEε4 carriers, new research suggests.

METHODOLOGY:

• Researchers conducted a cross-sectional study of 274 women (mean age, 59 years) participating in the MsBrain study of menopause and brain health.
• As part of the study, the women completed the PTSD Checklist–Civilian Version and underwent physical and neuropsychological testing, as well as carotid artery ultrasonography and brain MRI.
• Outcomes of interest were associations of PTSD symptoms with carotid intima media thickness (IMT), brain white matter hyperintensity volume (WMHV), and cognition, assessed in linear regression models.
• Interactions by APOEε4 were assessed; covariates included age, race/ethnicity, education, and CVD risk factors.

TAKEAWAY:

• Higher PTSD symptoms were associated with greater carotid IMT (P = .03); associations of PTSD symptoms with neurocognitive outcomes varied significantly by APOEε4 status.
• Among APOEε4 carriers, PTSD symptoms were associated with greater whole-brain WMHV (P = .009), periventricular WMHV (P = .02), deep WMHV (P = .01), and frontal WMHV (P = .04) in multivariable models.
• APOEε4 carriers with PTSD symptoms also had poorer cognition, specifically attention and working memory (P = .02), semantic fluency (P = .01), perceptual speed (P = .002) and processing speed (P = .002), in multivariable models.

IN PRACTICE:

“This study sheds important insight on the implications of PTSD symptoms to women’s cardiovascular and neurocognitive health. Our findings indicate that the APOEε4 genotype may identify a group of women with PTSD symptoms at particular risk for poor neurocognitive health,” the authors wrote.

SOURCE:

The study, with first author Rebecca Thurston, PhD, of the department of psychiatry, University of Pittsburgh, was published online  in JAMA Network Open.

LIMITATIONS:

No diagnostic clinical interviews were conducted, and PTSD treatment was not assessed. All participants identified as cisgender, and most were non-Hispanic Black or White. The study was observational and cross-sectional, precluding assertions about directionality or causality.

DISCLOSURES:

The study was funded by the National Institutes of Health, the University of Pittsburgh Clinical and Translational Science Institute, and the University of Pittsburgh Small Molecule Biomarker Core. Dr. Thurston reported receiving personal fees from Astellas Pharma, Bayer, Hello Therapeutics, Vira Health, and Happify Health outside the submitted work.

A version of this article first appeared on Medscape.com.

TOPLINE:

Posttraumatic stress disorder (PTSD) symptoms are associated with poorer cardiovascular and neurocognitive health among midlife women, particularly those who are APOEε4 carriers, new research suggests.

METHODOLOGY:

• Researchers conducted a cross-sectional study of 274 women (mean age, 59 years) participating in the MsBrain study of menopause and brain health.
• As part of the study, the women completed the PTSD Checklist–Civilian Version and underwent physical and neuropsychological testing, as well as carotid artery ultrasonography and brain MRI.
• Outcomes of interest were associations of PTSD symptoms with carotid intima media thickness (IMT), brain white matter hyperintensity volume (WMHV), and cognition, assessed in linear regression models.
• Interactions by APOEε4 were assessed; covariates included age, race/ethnicity, education, and CVD risk factors.

TAKEAWAY:

• Higher PTSD symptoms were associated with greater carotid IMT (P = .03); associations of PTSD symptoms with neurocognitive outcomes varied significantly by APOEε4 status.
• Among APOEε4 carriers, PTSD symptoms were associated with greater whole-brain WMHV (P = .009), periventricular WMHV (P = .02), deep WMHV (P = .01), and frontal WMHV (P = .04) in multivariable models.
• APOEε4 carriers with PTSD symptoms also had poorer cognition, specifically attention and working memory (P = .02), semantic fluency (P = .01), perceptual speed (P = .002) and processing speed (P = .002), in multivariable models.

IN PRACTICE:

“This study sheds important insight on the implications of PTSD symptoms to women’s cardiovascular and neurocognitive health. Our findings indicate that the APOEε4 genotype may identify a group of women with PTSD symptoms at particular risk for poor neurocognitive health,” the authors wrote.

SOURCE:

The study, with first author Rebecca Thurston, PhD, of the department of psychiatry, University of Pittsburgh, was published online  in JAMA Network Open.

LIMITATIONS:

No diagnostic clinical interviews were conducted, and PTSD treatment was not assessed. All participants identified as cisgender, and most were non-Hispanic Black or White. The study was observational and cross-sectional, precluding assertions about directionality or causality.

DISCLOSURES:

The study was funded by the National Institutes of Health, the University of Pittsburgh Clinical and Translational Science Institute, and the University of Pittsburgh Small Molecule Biomarker Core. Dr. Thurston reported receiving personal fees from Astellas Pharma, Bayer, Hello Therapeutics, Vira Health, and Happify Health outside the submitted work.

A version of this article first appeared on Medscape.com.

TOPLINE:

Posttraumatic stress disorder (PTSD) symptoms are associated with poorer cardiovascular and neurocognitive health among midlife women, particularly those who are APOEε4 carriers, new research suggests.

METHODOLOGY:

• Researchers conducted a cross-sectional study of 274 women (mean age, 59 years) participating in the MsBrain study of menopause and brain health.
• As part of the study, the women completed the PTSD Checklist–Civilian Version and underwent physical and neuropsychological testing, as well as carotid artery ultrasonography and brain MRI.
• Outcomes of interest were associations of PTSD symptoms with carotid intima media thickness (IMT), brain white matter hyperintensity volume (WMHV), and cognition, assessed in linear regression models.
• Interactions by APOEε4 were assessed; covariates included age, race/ethnicity, education, and CVD risk factors.

TAKEAWAY:

• Higher PTSD symptoms were associated with greater carotid IMT (P = .03); associations of PTSD symptoms with neurocognitive outcomes varied significantly by APOEε4 status.
• Among APOEε4 carriers, PTSD symptoms were associated with greater whole-brain WMHV (P = .009), periventricular WMHV (P = .02), deep WMHV (P = .01), and frontal WMHV (P = .04) in multivariable models.
• APOEε4 carriers with PTSD symptoms also had poorer cognition, specifically attention and working memory (P = .02), semantic fluency (P = .01), perceptual speed (P = .002) and processing speed (P = .002), in multivariable models.

IN PRACTICE:

“This study sheds important insight on the implications of PTSD symptoms to women’s cardiovascular and neurocognitive health. Our findings indicate that the APOEε4 genotype may identify a group of women with PTSD symptoms at particular risk for poor neurocognitive health,” the authors wrote.

SOURCE:

The study, with first author Rebecca Thurston, PhD, of the department of psychiatry, University of Pittsburgh, was published online  in JAMA Network Open.

LIMITATIONS:

No diagnostic clinical interviews were conducted, and PTSD treatment was not assessed. All participants identified as cisgender, and most were non-Hispanic Black or White. The study was observational and cross-sectional, precluding assertions about directionality or causality.

DISCLOSURES:

The study was funded by the National Institutes of Health, the University of Pittsburgh Clinical and Translational Science Institute, and the University of Pittsburgh Small Molecule Biomarker Core. Dr. Thurston reported receiving personal fees from Astellas Pharma, Bayer, Hello Therapeutics, Vira Health, and Happify Health outside the submitted work.

A version of this article first appeared on Medscape.com.

Adults with Parkinson’s disease are twice as likely to engage in suicidal behavior as the general population, results of a large meta-analysis show.

Given that up to half of patients with PD suffer from depression and anxiety, physicians should maintain a “high index of suspicion” for early recognition and management of suicidality, write the investigators, led by Eng-King Tan, MD, of Duke-NUS Medical School, Singapore.

“Management of both medical, such as sleep disorders, and psychosocial risk factors, such as feelings of loneliness, hopelessness, and depressed mood, could be useful in lowering suicide risk in patients with PD,” they add.

The study was published online  in JAMA Neurology.
 

Suicide risk neglected in PD?

The analysis included 505,950 patients with PD across 28 cross-sectional, case-control, and cohort studies.

Across 14 studies, the prevalence of suicidal ideation in patients with PD was 22.2% (95% confidence interval, 14.6-32.3). In a sensitivity analysis excluding three outliers, the prevalence of suicidal ideation was higher at 24% (95% CI, 19.1-29.7).

Across 21 studies, the prevalence of suicidal behavior was “substantial” at 1.25% (95% CI, 0.64-2.41), the authors report. The prevalence of suicidal behavior was significantly higher in prospective studies (1.75%; 95% CI, 1.03-2.95) than retrospective studies (0.50%; 95% CI, 0.24 to 1.01).

Across 10 studies, the likelihood of suicidal behavior was about twofold higher among patients with PD than general population controls (odds ratio, 2.15; 95% CI, 1.22-3.78; P = .01). Across nine studies, the hazard ratio for suicidal behavior was 1.73 (95% CI, 1.40-2.14; P < .001).

There was no evidence of sex-related differences in suicidal behavior, although the analysis was limited by the paucity of data, the researchers note. 

They note the quality of included studies was generally high, although eight of them did not explicitly identify and adjust for confounders.
 

Higher rate of mood, anxiety disorders

Paul Nestadt, MD, with Johns Hopkins Bloomberg School of Public Health, Baltimore, said this analysis reiterates what several reviews have found over the past few years, including his own.

“In general, rates of mood and anxiety disorders are much higher in PD than in other dementias, such as Alzheimer’s disease. This is reason enough to allocate resources to the mental health care of those diagnosed with PD and to pay special attention to at risk periods, such as early in the diagnosis, when suicide rates seem to be higher in dementias in general,” said Dr. Nestadt, who wasn’t involved in the study.

He noted that research has shown that suicides among people with PD are more likely to involve a firearm – likely because people with PD are more likely to be over age 65 and to be male – “both huge risk factors for firearm suicide.”

“Therefore, it is essential that caregivers be aware of the risks posed by firearms in the homes of people suffering from Parkinson’s or other dementias. It is the clinician’s responsibility to inform families of this risk, but it is all too often neglected,” Dr. Nestadt said.

Support for the study was provided in part by the National Medical Research Council. Dr. Tan reported honoraria from Eisai and Elsevier outside the submitted work. Dr. Nestadt reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Adults with Parkinson’s disease are twice as likely to engage in suicidal behavior as the general population, results of a large meta-analysis show.

Given that up to half of patients with PD suffer from depression and anxiety, physicians should maintain a “high index of suspicion” for early recognition and management of suicidality, write the investigators, led by Eng-King Tan, MD, of Duke-NUS Medical School, Singapore.

“Management of both medical, such as sleep disorders, and psychosocial risk factors, such as feelings of loneliness, hopelessness, and depressed mood, could be useful in lowering suicide risk in patients with PD,” they add.

The study was published online  in JAMA Neurology.
 

Suicide risk neglected in PD?

The analysis included 505,950 patients with PD across 28 cross-sectional, case-control, and cohort studies.

Across 14 studies, the prevalence of suicidal ideation in patients with PD was 22.2% (95% confidence interval, 14.6-32.3). In a sensitivity analysis excluding three outliers, the prevalence of suicidal ideation was higher at 24% (95% CI, 19.1-29.7).

Across 21 studies, the prevalence of suicidal behavior was “substantial” at 1.25% (95% CI, 0.64-2.41), the authors report. The prevalence of suicidal behavior was significantly higher in prospective studies (1.75%; 95% CI, 1.03-2.95) than retrospective studies (0.50%; 95% CI, 0.24 to 1.01).

Across 10 studies, the likelihood of suicidal behavior was about twofold higher among patients with PD than general population controls (odds ratio, 2.15; 95% CI, 1.22-3.78; P = .01). Across nine studies, the hazard ratio for suicidal behavior was 1.73 (95% CI, 1.40-2.14; P < .001).

There was no evidence of sex-related differences in suicidal behavior, although the analysis was limited by the paucity of data, the researchers note. 

They note the quality of included studies was generally high, although eight of them did not explicitly identify and adjust for confounders.
 

Higher rate of mood, anxiety disorders

Paul Nestadt, MD, with Johns Hopkins Bloomberg School of Public Health, Baltimore, said this analysis reiterates what several reviews have found over the past few years, including his own.

“In general, rates of mood and anxiety disorders are much higher in PD than in other dementias, such as Alzheimer’s disease. This is reason enough to allocate resources to the mental health care of those diagnosed with PD and to pay special attention to at risk periods, such as early in the diagnosis, when suicide rates seem to be higher in dementias in general,” said Dr. Nestadt, who wasn’t involved in the study.

He noted that research has shown that suicides among people with PD are more likely to involve a firearm – likely because people with PD are more likely to be over age 65 and to be male – “both huge risk factors for firearm suicide.”

“Therefore, it is essential that caregivers be aware of the risks posed by firearms in the homes of people suffering from Parkinson’s or other dementias. It is the clinician’s responsibility to inform families of this risk, but it is all too often neglected,” Dr. Nestadt said.

Support for the study was provided in part by the National Medical Research Council. Dr. Tan reported honoraria from Eisai and Elsevier outside the submitted work. Dr. Nestadt reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Adults with Parkinson’s disease are twice as likely to engage in suicidal behavior as the general population, results of a large meta-analysis show.

Given that up to half of patients with PD suffer from depression and anxiety, physicians should maintain a “high index of suspicion” for early recognition and management of suicidality, write the investigators, led by Eng-King Tan, MD, of Duke-NUS Medical School, Singapore.

“Management of both medical, such as sleep disorders, and psychosocial risk factors, such as feelings of loneliness, hopelessness, and depressed mood, could be useful in lowering suicide risk in patients with PD,” they add.

The study was published online  in JAMA Neurology.
 

Suicide risk neglected in PD?

The analysis included 505,950 patients with PD across 28 cross-sectional, case-control, and cohort studies.

Across 14 studies, the prevalence of suicidal ideation in patients with PD was 22.2% (95% confidence interval, 14.6-32.3). In a sensitivity analysis excluding three outliers, the prevalence of suicidal ideation was higher at 24% (95% CI, 19.1-29.7).

Across 21 studies, the prevalence of suicidal behavior was “substantial” at 1.25% (95% CI, 0.64-2.41), the authors report. The prevalence of suicidal behavior was significantly higher in prospective studies (1.75%; 95% CI, 1.03-2.95) than retrospective studies (0.50%; 95% CI, 0.24 to 1.01).

Across 10 studies, the likelihood of suicidal behavior was about twofold higher among patients with PD than general population controls (odds ratio, 2.15; 95% CI, 1.22-3.78; P = .01). Across nine studies, the hazard ratio for suicidal behavior was 1.73 (95% CI, 1.40-2.14; P < .001).

There was no evidence of sex-related differences in suicidal behavior, although the analysis was limited by the paucity of data, the researchers note. 

They note the quality of included studies was generally high, although eight of them did not explicitly identify and adjust for confounders.
 

Higher rate of mood, anxiety disorders

Paul Nestadt, MD, with Johns Hopkins Bloomberg School of Public Health, Baltimore, said this analysis reiterates what several reviews have found over the past few years, including his own.

“In general, rates of mood and anxiety disorders are much higher in PD than in other dementias, such as Alzheimer’s disease. This is reason enough to allocate resources to the mental health care of those diagnosed with PD and to pay special attention to at risk periods, such as early in the diagnosis, when suicide rates seem to be higher in dementias in general,” said Dr. Nestadt, who wasn’t involved in the study.

He noted that research has shown that suicides among people with PD are more likely to involve a firearm – likely because people with PD are more likely to be over age 65 and to be male – “both huge risk factors for firearm suicide.”

“Therefore, it is essential that caregivers be aware of the risks posed by firearms in the homes of people suffering from Parkinson’s or other dementias. It is the clinician’s responsibility to inform families of this risk, but it is all too often neglected,” Dr. Nestadt said.

Support for the study was provided in part by the National Medical Research Council. Dr. Tan reported honoraria from Eisai and Elsevier outside the submitted work. Dr. Nestadt reports no relevant financial relationships.

A version of this article first appeared on Medscape.com.

TOPLINE:

A 3-month yoga program that integrates deep breathing, meditation, and positive affirmations is associated with a significant reduction in seizure frequency, anxiety, and self-perceived feelings of stigma in people with epilepsy, a new study shows.

AlenaPaulus/E+/Getty Images

METHODOLOGY:

• Investigators included participants aged 18-60 years with epilepsy who scored ≥ 4 on the Kilifi Stigma Scale of Epilepsy. A score greater than the 66th percentile indicates the presence of strongly felt stigma.
• Patients (n = 160) had an average of one seizure per week, and most took at least two antiseizure medications.
• The intervention group (n = 80) participated in a yoga module with muscle-loosening exercises, slow and synchronized breathing, meditation, and positive affirmations. The control group (n = 80) participated in sham yoga sessions with no instructions on the breathing exercises or attention to the body movements and sensations during practice.
• Both groups participated in seven 1-hour supervised group yoga sessions over 3 months, were asked to practice the interventions at home five times per week, and received a psychoeducation module on epilepsy.

TAKEAWAY:

• Participants practicing the intervention module had significant reductions in self-perceived stigma, compared with those in the control group (P = .01).
• The proportion of participants in the intervention group who had a more than 50% seizure reduction (odds ratio, 4.11; P = .01) and complete seizure remission (OR, 7.4; P = .005) at the end of the 6-month follow-up was significantly higher than in the control group.
• Compared with those in the control group, there were also significant improvements in anxiety (P = .032) and quality of life (P < .001) in the intervention group.
• The intervention group also experienced significant improvement in mindfulness (P < .001) and cognitive impairment, compared with the control group (P < .004).

IN PRACTICE:

“This stigma can affect a person’s life in many ways, including treatment, emergency department visits, and poor mental health,” study investigator Majari Tripathi, MD, of All India Institute of Medical Sciences, New Delhi, said in a press release. “Our study showed that doing yoga can alleviate the burden of epilepsy and improve the overall quality of life by reducing this perceived stigma.”

SOURCE:

Dr. Tripathi and Kirandeep Kaur, MD, also of All India Institute of Medical Sciences, conducted the study with their colleagues. It was published online in Neurology.

LIMITATIONS:

There was no passive control or treatment as usual group, which would indicate the effect size of the intervention. In addition, there was no monitoring of seizure frequency before the study began, which may have biased the change of seizure frequency as an outcome.

DISCLOSURES:

The study investigators reported no study funding or reported disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

A 3-month yoga program that integrates deep breathing, meditation, and positive affirmations is associated with a significant reduction in seizure frequency, anxiety, and self-perceived feelings of stigma in people with epilepsy, a new study shows.

AlenaPaulus/E+/Getty Images

METHODOLOGY:

• Investigators included participants aged 18-60 years with epilepsy who scored ≥ 4 on the Kilifi Stigma Scale of Epilepsy. A score greater than the 66th percentile indicates the presence of strongly felt stigma.
• Patients (n = 160) had an average of one seizure per week, and most took at least two antiseizure medications.
• The intervention group (n = 80) participated in a yoga module with muscle-loosening exercises, slow and synchronized breathing, meditation, and positive affirmations. The control group (n = 80) participated in sham yoga sessions with no instructions on the breathing exercises or attention to the body movements and sensations during practice.
• Both groups participated in seven 1-hour supervised group yoga sessions over 3 months, were asked to practice the interventions at home five times per week, and received a psychoeducation module on epilepsy.

TAKEAWAY:

• Participants practicing the intervention module had significant reductions in self-perceived stigma, compared with those in the control group (P = .01).
• The proportion of participants in the intervention group who had a more than 50% seizure reduction (odds ratio, 4.11; P = .01) and complete seizure remission (OR, 7.4; P = .005) at the end of the 6-month follow-up was significantly higher than in the control group.
• Compared with those in the control group, there were also significant improvements in anxiety (P = .032) and quality of life (P < .001) in the intervention group.
• The intervention group also experienced significant improvement in mindfulness (P < .001) and cognitive impairment, compared with the control group (P < .004).

IN PRACTICE:

“This stigma can affect a person’s life in many ways, including treatment, emergency department visits, and poor mental health,” study investigator Majari Tripathi, MD, of All India Institute of Medical Sciences, New Delhi, said in a press release. “Our study showed that doing yoga can alleviate the burden of epilepsy and improve the overall quality of life by reducing this perceived stigma.”

SOURCE:

Dr. Tripathi and Kirandeep Kaur, MD, also of All India Institute of Medical Sciences, conducted the study with their colleagues. It was published online in Neurology.

LIMITATIONS:

There was no passive control or treatment as usual group, which would indicate the effect size of the intervention. In addition, there was no monitoring of seizure frequency before the study began, which may have biased the change of seizure frequency as an outcome.

DISCLOSURES:

The study investigators reported no study funding or reported disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

A 3-month yoga program that integrates deep breathing, meditation, and positive affirmations is associated with a significant reduction in seizure frequency, anxiety, and self-perceived feelings of stigma in people with epilepsy, a new study shows.

AlenaPaulus/E+/Getty Images

METHODOLOGY:

• Investigators included participants aged 18-60 years with epilepsy who scored ≥ 4 on the Kilifi Stigma Scale of Epilepsy. A score greater than the 66th percentile indicates the presence of strongly felt stigma.
• Patients (n = 160) had an average of one seizure per week, and most took at least two antiseizure medications.
• The intervention group (n = 80) participated in a yoga module with muscle-loosening exercises, slow and synchronized breathing, meditation, and positive affirmations. The control group (n = 80) participated in sham yoga sessions with no instructions on the breathing exercises or attention to the body movements and sensations during practice.
• Both groups participated in seven 1-hour supervised group yoga sessions over 3 months, were asked to practice the interventions at home five times per week, and received a psychoeducation module on epilepsy.

TAKEAWAY:

• Participants practicing the intervention module had significant reductions in self-perceived stigma, compared with those in the control group (P = .01).
• The proportion of participants in the intervention group who had a more than 50% seizure reduction (odds ratio, 4.11; P = .01) and complete seizure remission (OR, 7.4; P = .005) at the end of the 6-month follow-up was significantly higher than in the control group.
• Compared with those in the control group, there were also significant improvements in anxiety (P = .032) and quality of life (P < .001) in the intervention group.
• The intervention group also experienced significant improvement in mindfulness (P < .001) and cognitive impairment, compared with the control group (P < .004).

IN PRACTICE:

“This stigma can affect a person’s life in many ways, including treatment, emergency department visits, and poor mental health,” study investigator Majari Tripathi, MD, of All India Institute of Medical Sciences, New Delhi, said in a press release. “Our study showed that doing yoga can alleviate the burden of epilepsy and improve the overall quality of life by reducing this perceived stigma.”

SOURCE:

Dr. Tripathi and Kirandeep Kaur, MD, also of All India Institute of Medical Sciences, conducted the study with their colleagues. It was published online in Neurology.

LIMITATIONS:

There was no passive control or treatment as usual group, which would indicate the effect size of the intervention. In addition, there was no monitoring of seizure frequency before the study began, which may have biased the change of seizure frequency as an outcome.

DISCLOSURES:

The study investigators reported no study funding or reported disclosures.

A version of this article appeared on Medscape.com.

In the pursuit of optimal health, regular physical activity (PA) is recommended to protect against dementia, cardiovascular disease (CVD), cancer, and other noncommunicable diseases. A significant body of research suggests the benefits of PA are positively correlated with higher frequency and intensity – with more often deemed better. This research has spawned a focus on increasing step counts and investing in standing desks and other interventions aimed at keeping people active.

But for many people, PA is a work requirement over which they have little control, and emerging evidence suggests that these workers not only do not reap the benefits associated with leisure-time PA, but they also actually experience an increased risk for the very conditions that PA is intended to prevent.

A study published recently in The Lancet Regional Health – Europe used registry data from more than 7,000 adults in Norway, following them from age 33 to 65 years, to assess PA trajectories and risks for later-life mild cognitive impairment (MCI) and dementia at age 70 or older.

“Incorporating a life-course perspective gives a broader picture of how participants’ occupational histories relate to cognitive impairment later in life,” principal investigator Vegard Skirbekk, PhD, Columbia University Mailman School of Public Health, New York, said in an interview. Other studies typically have assessed occupational PA at a single time point, often close to the end of an individual’s career, and largely relied on self-report, he said.

Study participants worked in more than 300 different occupations. General physical activities performed on the included jobs required “considerable” use of arms and legs and moving the whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.

Dr. Skirbekk and colleagues grouped participants into four PA trajectories over the 44-year study period: stable low, increasing then decreasing, stable intermediate, and stable high.

A total of 902 individuals were diagnosed with dementia and 2,407 with MCI at age 70 years or older. After adjustment, risks for MCI and dementia were 15.5% for those with higher occupational PA scores in the latter part of their working life and 9% for those with lower physical demands. The researchers concluded that “consistently working in an occupation with intermediate or high occupational PA was linked to an increased risk of cognitive impairment.”

The findings support those of the Copenhagen Male Study. Published in 2020, this longitudinal study compared leisure-time and occupational PA among more than 4,000 men in Denmark aged 40-59 at baseline in 1970-1971 and followed them until they turned 60. After adjustment, participants with high occupational PA had a 55% greater risk of developing dementia compared with those doing sedentary work.
 

Good vs. bad PA

“[T]he WHO [World Health Organization] guide to preventing dementia and disease on the whole mentions physical activity as an important factor. But our study suggests that it must be a ‘good’ form of physical activity, which hard physical work is not,” said Kirsten Nabe-Nielsen, PhD, lead author of this study

Beyond dementia, another recent study adds to a wealth of data on associations between occupational PA and cardiovascular risks. The cross-sectional analysis of U.S. data from the National Institute for Occupational Safety and Health showed that odds of CVD were higher when participants were “always” performing total occupational activity (odds ratio [OR], 1.99), occupational exertion (OR, 2.15), or occupational standing and walking around (OR, 1.84) compared with “never” engaging in these activities.

The contrasting effects of leisure-time vs. occupational PA constitute the “physical activity paradox” hypothesis. Starting in 2011, multiple studies by Andreas Holtermann, PhD, of the National Research Centre for the Working Environment lend support to the PA paradox theory, as do subsequent studies by others.

Although only “marginally considered” until a few years ago, recent large cohort studies seem to confirm the paradox, Pier Luigi Temporelli, MD wrote in a recent editorial.

In separate interviews, Dr. Skirbekk and lead author Tyler Quinn, PhD, MS, West Virginia University, Morgantown, pointed to the PA paradox as an explanation for their own recent findings, suggesting that the mechanisms that underlie it probably are responsible for the associated deleterious effects of occupational PA on the brain and heart, and even mortality.

“It’s well established that PA in your leisure time can be positive, but in the workplace, the results are quite the opposite,” Dr. Skirbekk said. “The specific mechanisms for why occupational PA is associated with elevated dementia risk are still not well understood and we need more knowledge. But we know that higher occupational physical demands have been linked to smaller hippocampal volume and poorer memory performance.”

Furthermore, he said, individuals working in jobs with high demands, both psychological and physical, combined with low job control perform more poorly on cognitive testing later in life.

“We looked mainly at professions where people have heavy workloads and you have much less autonomy, such as nursing assistants, office cleaners, childcare workers, and other personal care workers,” he said. “You cannot sit. You have somebody relying on you. It’s not all pleasure, and it can be very hard. That’s where we find the associations.”
 

Lack of autonomy

Specific characteristics indirectly associated with high occupational PA jobs – low cognitive stimuli, lifestyle factors, and socioeconomic influences – as well as factors directly related to high occupational PA, such as long hours, repetitive tasks, low levels of control, and stress, could also adversely affect cognitive trajectories, Dr. Skirbekk explained.

“By contrast, leisure-time physical activities tend to be of much shorter duration; are associated with socialization, play, [and] positive emotions; and [include] the opportunity to take breaks or shift to other types of activities if one prefers,” he said. “It may also be that too little or too much PA could be adversely related to cognitive outcomes – hence moderate activity levels, for example 10,000 steps a day, are still likely beneficial for cognitive functioning.”

Dr. Quinn said most of the CVD risk linked to occupational PA has to do with long periods of exertion such as lifting and carrying objects. While occupational standing and walking all day are also linked to CVD risk, they’re not as risky as lifting and carrying, he said.

Like Dr. Skirbekk, Dr. Quinn noted that individuals can take a break from leisure-time PA when they are tired, but occupational PA doesn’t have that same autonomy to allow for recovery.

“So, in many cases, individuals are not getting the recovery their body needs to actually experience PA benefits, because those benefits come during rest,” Dr. Quinn said.

“We’ve shown that PA at work raises acute cardiovascular responses, which are related to cardiovascular risk. For example, 24-hour and waking heart rate and diastolic blood pressure, as well as nonwork diastolic blood pressure, all were significantly higher on workdays versus non-workdays,” he said.

Dr. Quinn also said that psychological stress at work amplifies risk. “A person who does PA at work and is stressed is likely to be at greater risk than someone who has a physically active job but doesn’t have psychological stress combined with it.”
 

Research gaps

However, Dr. Skirbekk noted that there are strategies that can reduce the risk for MCI and dementia despite high levels of occupational PA. “It is often difficult to change professions, and even if you do, it won’t immediately affect cognition. But altering one’s lifestyle is likely to have effects on cognitive development across the life cycle.

“Many clinicians say they always advise lifestyle changes, but nothing happens. But it makes sense to emphasize that these changes – stopping smoking, eating well, getting proper sleep, etc. – affect not only cardiovascular risk but also cognition. And I think clinicians should also take a patient’s occupation into account during any evaluation,” Dr. Skirbekk noted.

Dr. Quinn said it isn’t realistic to expect workers to come up with solutions to the PA paradox because many don’t have the autonomy to be able to mitigate their occupational risk.

“I think administrative controls and policy changes eventually will be the levers of change. We’re not quite there yet, but those are the types of things we should do when we’re trying to reduce loads in some way, or reduce the time that people spend doing certain tasks we know are potentially bad,” he said.

However, not everyone agrees that occupational PA doesn’t confer the same benefits of leisure-time PA, at least with respect to cardiovascular risk. For example, the Prospective Urban Rural Epidemiology (PURE) study, which includes a cohort of 130,000 people from 17 high-income, middle-income, and low-income countries, concluded that both higher recreational and nonrecreational PA were associated with a lower risk for mortality and CVD events.

What additional research is needed to clarify the effects of occupational and leisure-time activity and to address conflicting findings?

“Even studies coming out now regarding the effects of occupational PA have mainly used older data,” Dr. Skirbekk noted. “Labor markets and job demands have changed over time. There are different types of tasks and skills required now than there were 20 or 40 years ago. And of course, working from home is a recent phenomenon that’s happened on a large scale and might affect daily routines, sleep patterns, and also cognition. We need a better understanding of what the consequences might be.”
 

Health inequity issue

More research is also necessary to understand the social determinants of cognitive decline, impairment, and dementia, he said. “Many of the studies we see today are based on self-report of what someone has done in the past, which is particularly problematic for individuals who are impaired or who give interviews with others, which can induce biases.”

Dr. Quinn suggests that PA guidelines may need to differentiate between occupational and leisure-time PA to better reflect current research findings.

Meanwhile, Dr. Skirbekk and Dr. Quinn both point to the toll that occupational PA takes on the brain and body in lower-income workers as an important health equity issue.

“Our national guidelines for PA include occupational activity,” said Dr. Quinn. “But it’s clear that a lot of people who are getting a lot of occupational PA, particularly socioeconomic and racial/ethnic minorities, are not benefiting from it.”

Dr. Holtermann, who has arguably done the most research to date on the PA paradox, noted in a recent editorial that the majority of workers with high occupational PA have a low socioeconomic position and therefore “improving our understanding of the underlying mechanisms behind the PA health paradox and identifying new intervention targets along those pathways will be an important step to reduce socioeconomic health inequalities across the globe.”
 

A version of this article first appeared on Medscape.com.

In the pursuit of optimal health, regular physical activity (PA) is recommended to protect against dementia, cardiovascular disease (CVD), cancer, and other noncommunicable diseases. A significant body of research suggests the benefits of PA are positively correlated with higher frequency and intensity – with more often deemed better. This research has spawned a focus on increasing step counts and investing in standing desks and other interventions aimed at keeping people active.

But for many people, PA is a work requirement over which they have little control, and emerging evidence suggests that these workers not only do not reap the benefits associated with leisure-time PA, but they also actually experience an increased risk for the very conditions that PA is intended to prevent.

A study published recently in The Lancet Regional Health – Europe used registry data from more than 7,000 adults in Norway, following them from age 33 to 65 years, to assess PA trajectories and risks for later-life mild cognitive impairment (MCI) and dementia at age 70 or older.

“Incorporating a life-course perspective gives a broader picture of how participants’ occupational histories relate to cognitive impairment later in life,” principal investigator Vegard Skirbekk, PhD, Columbia University Mailman School of Public Health, New York, said in an interview. Other studies typically have assessed occupational PA at a single time point, often close to the end of an individual’s career, and largely relied on self-report, he said.

Study participants worked in more than 300 different occupations. General physical activities performed on the included jobs required “considerable” use of arms and legs and moving the whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.

Dr. Skirbekk and colleagues grouped participants into four PA trajectories over the 44-year study period: stable low, increasing then decreasing, stable intermediate, and stable high.

A total of 902 individuals were diagnosed with dementia and 2,407 with MCI at age 70 years or older. After adjustment, risks for MCI and dementia were 15.5% for those with higher occupational PA scores in the latter part of their working life and 9% for those with lower physical demands. The researchers concluded that “consistently working in an occupation with intermediate or high occupational PA was linked to an increased risk of cognitive impairment.”

The findings support those of the Copenhagen Male Study. Published in 2020, this longitudinal study compared leisure-time and occupational PA among more than 4,000 men in Denmark aged 40-59 at baseline in 1970-1971 and followed them until they turned 60. After adjustment, participants with high occupational PA had a 55% greater risk of developing dementia compared with those doing sedentary work.
 

Good vs. bad PA

“[T]he WHO [World Health Organization] guide to preventing dementia and disease on the whole mentions physical activity as an important factor. But our study suggests that it must be a ‘good’ form of physical activity, which hard physical work is not,” said Kirsten Nabe-Nielsen, PhD, lead author of this study

Beyond dementia, another recent study adds to a wealth of data on associations between occupational PA and cardiovascular risks. The cross-sectional analysis of U.S. data from the National Institute for Occupational Safety and Health showed that odds of CVD were higher when participants were “always” performing total occupational activity (odds ratio [OR], 1.99), occupational exertion (OR, 2.15), or occupational standing and walking around (OR, 1.84) compared with “never” engaging in these activities.

The contrasting effects of leisure-time vs. occupational PA constitute the “physical activity paradox” hypothesis. Starting in 2011, multiple studies by Andreas Holtermann, PhD, of the National Research Centre for the Working Environment lend support to the PA paradox theory, as do subsequent studies by others.

Although only “marginally considered” until a few years ago, recent large cohort studies seem to confirm the paradox, Pier Luigi Temporelli, MD wrote in a recent editorial.

In separate interviews, Dr. Skirbekk and lead author Tyler Quinn, PhD, MS, West Virginia University, Morgantown, pointed to the PA paradox as an explanation for their own recent findings, suggesting that the mechanisms that underlie it probably are responsible for the associated deleterious effects of occupational PA on the brain and heart, and even mortality.

“It’s well established that PA in your leisure time can be positive, but in the workplace, the results are quite the opposite,” Dr. Skirbekk said. “The specific mechanisms for why occupational PA is associated with elevated dementia risk are still not well understood and we need more knowledge. But we know that higher occupational physical demands have been linked to smaller hippocampal volume and poorer memory performance.”

Furthermore, he said, individuals working in jobs with high demands, both psychological and physical, combined with low job control perform more poorly on cognitive testing later in life.

“We looked mainly at professions where people have heavy workloads and you have much less autonomy, such as nursing assistants, office cleaners, childcare workers, and other personal care workers,” he said. “You cannot sit. You have somebody relying on you. It’s not all pleasure, and it can be very hard. That’s where we find the associations.”
 

Lack of autonomy

Specific characteristics indirectly associated with high occupational PA jobs – low cognitive stimuli, lifestyle factors, and socioeconomic influences – as well as factors directly related to high occupational PA, such as long hours, repetitive tasks, low levels of control, and stress, could also adversely affect cognitive trajectories, Dr. Skirbekk explained.

“By contrast, leisure-time physical activities tend to be of much shorter duration; are associated with socialization, play, [and] positive emotions; and [include] the opportunity to take breaks or shift to other types of activities if one prefers,” he said. “It may also be that too little or too much PA could be adversely related to cognitive outcomes – hence moderate activity levels, for example 10,000 steps a day, are still likely beneficial for cognitive functioning.”

Dr. Quinn said most of the CVD risk linked to occupational PA has to do with long periods of exertion such as lifting and carrying objects. While occupational standing and walking all day are also linked to CVD risk, they’re not as risky as lifting and carrying, he said.

Like Dr. Skirbekk, Dr. Quinn noted that individuals can take a break from leisure-time PA when they are tired, but occupational PA doesn’t have that same autonomy to allow for recovery.

“So, in many cases, individuals are not getting the recovery their body needs to actually experience PA benefits, because those benefits come during rest,” Dr. Quinn said.

“We’ve shown that PA at work raises acute cardiovascular responses, which are related to cardiovascular risk. For example, 24-hour and waking heart rate and diastolic blood pressure, as well as nonwork diastolic blood pressure, all were significantly higher on workdays versus non-workdays,” he said.

Dr. Quinn also said that psychological stress at work amplifies risk. “A person who does PA at work and is stressed is likely to be at greater risk than someone who has a physically active job but doesn’t have psychological stress combined with it.”
 

Research gaps

However, Dr. Skirbekk noted that there are strategies that can reduce the risk for MCI and dementia despite high levels of occupational PA. “It is often difficult to change professions, and even if you do, it won’t immediately affect cognition. But altering one’s lifestyle is likely to have effects on cognitive development across the life cycle.

“Many clinicians say they always advise lifestyle changes, but nothing happens. But it makes sense to emphasize that these changes – stopping smoking, eating well, getting proper sleep, etc. – affect not only cardiovascular risk but also cognition. And I think clinicians should also take a patient’s occupation into account during any evaluation,” Dr. Skirbekk noted.

Dr. Quinn said it isn’t realistic to expect workers to come up with solutions to the PA paradox because many don’t have the autonomy to be able to mitigate their occupational risk.

“I think administrative controls and policy changes eventually will be the levers of change. We’re not quite there yet, but those are the types of things we should do when we’re trying to reduce loads in some way, or reduce the time that people spend doing certain tasks we know are potentially bad,” he said.

However, not everyone agrees that occupational PA doesn’t confer the same benefits of leisure-time PA, at least with respect to cardiovascular risk. For example, the Prospective Urban Rural Epidemiology (PURE) study, which includes a cohort of 130,000 people from 17 high-income, middle-income, and low-income countries, concluded that both higher recreational and nonrecreational PA were associated with a lower risk for mortality and CVD events.

What additional research is needed to clarify the effects of occupational and leisure-time activity and to address conflicting findings?

“Even studies coming out now regarding the effects of occupational PA have mainly used older data,” Dr. Skirbekk noted. “Labor markets and job demands have changed over time. There are different types of tasks and skills required now than there were 20 or 40 years ago. And of course, working from home is a recent phenomenon that’s happened on a large scale and might affect daily routines, sleep patterns, and also cognition. We need a better understanding of what the consequences might be.”
 

Health inequity issue

More research is also necessary to understand the social determinants of cognitive decline, impairment, and dementia, he said. “Many of the studies we see today are based on self-report of what someone has done in the past, which is particularly problematic for individuals who are impaired or who give interviews with others, which can induce biases.”

Dr. Quinn suggests that PA guidelines may need to differentiate between occupational and leisure-time PA to better reflect current research findings.

Meanwhile, Dr. Skirbekk and Dr. Quinn both point to the toll that occupational PA takes on the brain and body in lower-income workers as an important health equity issue.

“Our national guidelines for PA include occupational activity,” said Dr. Quinn. “But it’s clear that a lot of people who are getting a lot of occupational PA, particularly socioeconomic and racial/ethnic minorities, are not benefiting from it.”

Dr. Holtermann, who has arguably done the most research to date on the PA paradox, noted in a recent editorial that the majority of workers with high occupational PA have a low socioeconomic position and therefore “improving our understanding of the underlying mechanisms behind the PA health paradox and identifying new intervention targets along those pathways will be an important step to reduce socioeconomic health inequalities across the globe.”
 

A version of this article first appeared on Medscape.com.

In the pursuit of optimal health, regular physical activity (PA) is recommended to protect against dementia, cardiovascular disease (CVD), cancer, and other noncommunicable diseases. A significant body of research suggests the benefits of PA are positively correlated with higher frequency and intensity – with more often deemed better. This research has spawned a focus on increasing step counts and investing in standing desks and other interventions aimed at keeping people active.

But for many people, PA is a work requirement over which they have little control, and emerging evidence suggests that these workers not only do not reap the benefits associated with leisure-time PA, but they also actually experience an increased risk for the very conditions that PA is intended to prevent.

A study published recently in The Lancet Regional Health – Europe used registry data from more than 7,000 adults in Norway, following them from age 33 to 65 years, to assess PA trajectories and risks for later-life mild cognitive impairment (MCI) and dementia at age 70 or older.

“Incorporating a life-course perspective gives a broader picture of how participants’ occupational histories relate to cognitive impairment later in life,” principal investigator Vegard Skirbekk, PhD, Columbia University Mailman School of Public Health, New York, said in an interview. Other studies typically have assessed occupational PA at a single time point, often close to the end of an individual’s career, and largely relied on self-report, he said.

Study participants worked in more than 300 different occupations. General physical activities performed on the included jobs required “considerable” use of arms and legs and moving the whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.

Dr. Skirbekk and colleagues grouped participants into four PA trajectories over the 44-year study period: stable low, increasing then decreasing, stable intermediate, and stable high.

A total of 902 individuals were diagnosed with dementia and 2,407 with MCI at age 70 years or older. After adjustment, risks for MCI and dementia were 15.5% for those with higher occupational PA scores in the latter part of their working life and 9% for those with lower physical demands. The researchers concluded that “consistently working in an occupation with intermediate or high occupational PA was linked to an increased risk of cognitive impairment.”

The findings support those of the Copenhagen Male Study. Published in 2020, this longitudinal study compared leisure-time and occupational PA among more than 4,000 men in Denmark aged 40-59 at baseline in 1970-1971 and followed them until they turned 60. After adjustment, participants with high occupational PA had a 55% greater risk of developing dementia compared with those doing sedentary work.
 

Good vs. bad PA

“[T]he WHO [World Health Organization] guide to preventing dementia and disease on the whole mentions physical activity as an important factor. But our study suggests that it must be a ‘good’ form of physical activity, which hard physical work is not,” said Kirsten Nabe-Nielsen, PhD, lead author of this study

Beyond dementia, another recent study adds to a wealth of data on associations between occupational PA and cardiovascular risks. The cross-sectional analysis of U.S. data from the National Institute for Occupational Safety and Health showed that odds of CVD were higher when participants were “always” performing total occupational activity (odds ratio [OR], 1.99), occupational exertion (OR, 2.15), or occupational standing and walking around (OR, 1.84) compared with “never” engaging in these activities.

The contrasting effects of leisure-time vs. occupational PA constitute the “physical activity paradox” hypothesis. Starting in 2011, multiple studies by Andreas Holtermann, PhD, of the National Research Centre for the Working Environment lend support to the PA paradox theory, as do subsequent studies by others.

Although only “marginally considered” until a few years ago, recent large cohort studies seem to confirm the paradox, Pier Luigi Temporelli, MD wrote in a recent editorial.

In separate interviews, Dr. Skirbekk and lead author Tyler Quinn, PhD, MS, West Virginia University, Morgantown, pointed to the PA paradox as an explanation for their own recent findings, suggesting that the mechanisms that underlie it probably are responsible for the associated deleterious effects of occupational PA on the brain and heart, and even mortality.

“It’s well established that PA in your leisure time can be positive, but in the workplace, the results are quite the opposite,” Dr. Skirbekk said. “The specific mechanisms for why occupational PA is associated with elevated dementia risk are still not well understood and we need more knowledge. But we know that higher occupational physical demands have been linked to smaller hippocampal volume and poorer memory performance.”

Furthermore, he said, individuals working in jobs with high demands, both psychological and physical, combined with low job control perform more poorly on cognitive testing later in life.

“We looked mainly at professions where people have heavy workloads and you have much less autonomy, such as nursing assistants, office cleaners, childcare workers, and other personal care workers,” he said. “You cannot sit. You have somebody relying on you. It’s not all pleasure, and it can be very hard. That’s where we find the associations.”
 

Lack of autonomy

Specific characteristics indirectly associated with high occupational PA jobs – low cognitive stimuli, lifestyle factors, and socioeconomic influences – as well as factors directly related to high occupational PA, such as long hours, repetitive tasks, low levels of control, and stress, could also adversely affect cognitive trajectories, Dr. Skirbekk explained.

“By contrast, leisure-time physical activities tend to be of much shorter duration; are associated with socialization, play, [and] positive emotions; and [include] the opportunity to take breaks or shift to other types of activities if one prefers,” he said. “It may also be that too little or too much PA could be adversely related to cognitive outcomes – hence moderate activity levels, for example 10,000 steps a day, are still likely beneficial for cognitive functioning.”

Dr. Quinn said most of the CVD risk linked to occupational PA has to do with long periods of exertion such as lifting and carrying objects. While occupational standing and walking all day are also linked to CVD risk, they’re not as risky as lifting and carrying, he said.

Like Dr. Skirbekk, Dr. Quinn noted that individuals can take a break from leisure-time PA when they are tired, but occupational PA doesn’t have that same autonomy to allow for recovery.

“So, in many cases, individuals are not getting the recovery their body needs to actually experience PA benefits, because those benefits come during rest,” Dr. Quinn said.

“We’ve shown that PA at work raises acute cardiovascular responses, which are related to cardiovascular risk. For example, 24-hour and waking heart rate and diastolic blood pressure, as well as nonwork diastolic blood pressure, all were significantly higher on workdays versus non-workdays,” he said.

Dr. Quinn also said that psychological stress at work amplifies risk. “A person who does PA at work and is stressed is likely to be at greater risk than someone who has a physically active job but doesn’t have psychological stress combined with it.”
 

Research gaps

However, Dr. Skirbekk noted that there are strategies that can reduce the risk for MCI and dementia despite high levels of occupational PA. “It is often difficult to change professions, and even if you do, it won’t immediately affect cognition. But altering one’s lifestyle is likely to have effects on cognitive development across the life cycle.

“Many clinicians say they always advise lifestyle changes, but nothing happens. But it makes sense to emphasize that these changes – stopping smoking, eating well, getting proper sleep, etc. – affect not only cardiovascular risk but also cognition. And I think clinicians should also take a patient’s occupation into account during any evaluation,” Dr. Skirbekk noted.

Dr. Quinn said it isn’t realistic to expect workers to come up with solutions to the PA paradox because many don’t have the autonomy to be able to mitigate their occupational risk.

“I think administrative controls and policy changes eventually will be the levers of change. We’re not quite there yet, but those are the types of things we should do when we’re trying to reduce loads in some way, or reduce the time that people spend doing certain tasks we know are potentially bad,” he said.

However, not everyone agrees that occupational PA doesn’t confer the same benefits of leisure-time PA, at least with respect to cardiovascular risk. For example, the Prospective Urban Rural Epidemiology (PURE) study, which includes a cohort of 130,000 people from 17 high-income, middle-income, and low-income countries, concluded that both higher recreational and nonrecreational PA were associated with a lower risk for mortality and CVD events.

What additional research is needed to clarify the effects of occupational and leisure-time activity and to address conflicting findings?

“Even studies coming out now regarding the effects of occupational PA have mainly used older data,” Dr. Skirbekk noted. “Labor markets and job demands have changed over time. There are different types of tasks and skills required now than there were 20 or 40 years ago. And of course, working from home is a recent phenomenon that’s happened on a large scale and might affect daily routines, sleep patterns, and also cognition. We need a better understanding of what the consequences might be.”
 

Health inequity issue

More research is also necessary to understand the social determinants of cognitive decline, impairment, and dementia, he said. “Many of the studies we see today are based on self-report of what someone has done in the past, which is particularly problematic for individuals who are impaired or who give interviews with others, which can induce biases.”

Dr. Quinn suggests that PA guidelines may need to differentiate between occupational and leisure-time PA to better reflect current research findings.

Meanwhile, Dr. Skirbekk and Dr. Quinn both point to the toll that occupational PA takes on the brain and body in lower-income workers as an important health equity issue.

“Our national guidelines for PA include occupational activity,” said Dr. Quinn. “But it’s clear that a lot of people who are getting a lot of occupational PA, particularly socioeconomic and racial/ethnic minorities, are not benefiting from it.”

Dr. Holtermann, who has arguably done the most research to date on the PA paradox, noted in a recent editorial that the majority of workers with high occupational PA have a low socioeconomic position and therefore “improving our understanding of the underlying mechanisms behind the PA health paradox and identifying new intervention targets along those pathways will be an important step to reduce socioeconomic health inequalities across the globe.”
 

A version of this article first appeared on Medscape.com.

Leading UK Alzheimer’s organizations have launched an ambitious plan to have a diagnostic Alzheimer’s disease (AD) blood test widely available within the next 5 years.

Alzheimer’s Research UK, the Alzheimer’s Society, and the National Institute for Health and Care Research (NIHR) are collaborating and leading AD researchers to bring a diagnostic blood test to the UK’s National Health Service (NHS).

“Dementia affects around 900,000 people in the UK today, and that number is expected to rise to 1.4 million by 2040. It is the UK’s biggest killer,” Fiona Carragher, with the Alzheimer’s Society, said during a media briefing announcing the project.

Yet, many people face a very long wait of up to 2-4 years to get a dementia diagnosis, and many cases remain undiagnosed, she noted.

A chief reason is lack of access to specialized diagnostic testing. Currently, only 2% of people in the United Kingdom have access to advanced diagnostic tests such as PET scans and lumbar punctures owing to limited availability.

“Getting an early and accurate diagnosis is the pivotal first step to getting help today and unlocking hope for the future” and blood biomarkers provide a “real opportunity to disrupt the diagnostic paradigm,” Ms. Carragher said. It also offers greater opportunities to participate in research and clinical trials, she added.
 

Attitude shift

Susan Kohlhaas, PhD, with Alzheimer’s Research UK, noted that attitudes toward dementia diagnosis have changed in the past few years. The days when people may have not wanted to know if they have dementia are gone.

Data from the latest wave of the Alzheimer’s Research UK Dementia Attitudes Monitor survey show that 9 in 10 people would seek a diagnosis from their provider. “That’s been driven by awareness of treatments and things that people can proactively do to try and slow disease progression,” Dr. Kohlhaas said.

“As new treatments for dementia become available there will to be a surge in people seeking a diagnosis. At the moment, we don’t have adequate infrastructure to cope with that demand,” Dr. Kohlhaas added.

She noted that blood tests are starting to show their potential as an effective part of the diagnosis and are widely used in research.

“In some cases, they are similar in sensitivity to gold-standard PET scans and lumbar punctures, and they’re less expensive and potentially more scalable on the NHS. What we need to do over the next several years is to understand how they fit into the clinical pathway,” Dr. Kohlhaas said.

The project will involve working with leading dementia researchers to pilot the implementation of potential blood tests in the NHS that can give an early and accurate diagnose of dementia.

The project, which kicks off in January 2024, will receive £5 million ($6.13 million) awarded by the UK Postcode Dream Fund. Specific details regarding the leadership team, participating centers, and specific blood biomarker tests to be trialed will be announced then.

Ms. Carragher and Dr. Kohlhaas reported no relevant financial conflicts of interest.
 

A version of this article appeared on Medscape.com.

Leading UK Alzheimer’s organizations have launched an ambitious plan to have a diagnostic Alzheimer’s disease (AD) blood test widely available within the next 5 years.

Alzheimer’s Research UK, the Alzheimer’s Society, and the National Institute for Health and Care Research (NIHR) are collaborating and leading AD researchers to bring a diagnostic blood test to the UK’s National Health Service (NHS).

“Dementia affects around 900,000 people in the UK today, and that number is expected to rise to 1.4 million by 2040. It is the UK’s biggest killer,” Fiona Carragher, with the Alzheimer’s Society, said during a media briefing announcing the project.

Yet, many people face a very long wait of up to 2-4 years to get a dementia diagnosis, and many cases remain undiagnosed, she noted.

A chief reason is lack of access to specialized diagnostic testing. Currently, only 2% of people in the United Kingdom have access to advanced diagnostic tests such as PET scans and lumbar punctures owing to limited availability.

“Getting an early and accurate diagnosis is the pivotal first step to getting help today and unlocking hope for the future” and blood biomarkers provide a “real opportunity to disrupt the diagnostic paradigm,” Ms. Carragher said. It also offers greater opportunities to participate in research and clinical trials, she added.
 

Attitude shift

Susan Kohlhaas, PhD, with Alzheimer’s Research UK, noted that attitudes toward dementia diagnosis have changed in the past few years. The days when people may have not wanted to know if they have dementia are gone.

Data from the latest wave of the Alzheimer’s Research UK Dementia Attitudes Monitor survey show that 9 in 10 people would seek a diagnosis from their provider. “That’s been driven by awareness of treatments and things that people can proactively do to try and slow disease progression,” Dr. Kohlhaas said.

“As new treatments for dementia become available there will to be a surge in people seeking a diagnosis. At the moment, we don’t have adequate infrastructure to cope with that demand,” Dr. Kohlhaas added.

She noted that blood tests are starting to show their potential as an effective part of the diagnosis and are widely used in research.

“In some cases, they are similar in sensitivity to gold-standard PET scans and lumbar punctures, and they’re less expensive and potentially more scalable on the NHS. What we need to do over the next several years is to understand how they fit into the clinical pathway,” Dr. Kohlhaas said.

The project will involve working with leading dementia researchers to pilot the implementation of potential blood tests in the NHS that can give an early and accurate diagnose of dementia.

The project, which kicks off in January 2024, will receive £5 million ($6.13 million) awarded by the UK Postcode Dream Fund. Specific details regarding the leadership team, participating centers, and specific blood biomarker tests to be trialed will be announced then.

Ms. Carragher and Dr. Kohlhaas reported no relevant financial conflicts of interest.
 

A version of this article appeared on Medscape.com.

Leading UK Alzheimer’s organizations have launched an ambitious plan to have a diagnostic Alzheimer’s disease (AD) blood test widely available within the next 5 years.

Alzheimer’s Research UK, the Alzheimer’s Society, and the National Institute for Health and Care Research (NIHR) are collaborating and leading AD researchers to bring a diagnostic blood test to the UK’s National Health Service (NHS).

“Dementia affects around 900,000 people in the UK today, and that number is expected to rise to 1.4 million by 2040. It is the UK’s biggest killer,” Fiona Carragher, with the Alzheimer’s Society, said during a media briefing announcing the project.

Yet, many people face a very long wait of up to 2-4 years to get a dementia diagnosis, and many cases remain undiagnosed, she noted.

A chief reason is lack of access to specialized diagnostic testing. Currently, only 2% of people in the United Kingdom have access to advanced diagnostic tests such as PET scans and lumbar punctures owing to limited availability.

“Getting an early and accurate diagnosis is the pivotal first step to getting help today and unlocking hope for the future” and blood biomarkers provide a “real opportunity to disrupt the diagnostic paradigm,” Ms. Carragher said. It also offers greater opportunities to participate in research and clinical trials, she added.
 

Attitude shift

Susan Kohlhaas, PhD, with Alzheimer’s Research UK, noted that attitudes toward dementia diagnosis have changed in the past few years. The days when people may have not wanted to know if they have dementia are gone.

Data from the latest wave of the Alzheimer’s Research UK Dementia Attitudes Monitor survey show that 9 in 10 people would seek a diagnosis from their provider. “That’s been driven by awareness of treatments and things that people can proactively do to try and slow disease progression,” Dr. Kohlhaas said.

“As new treatments for dementia become available there will to be a surge in people seeking a diagnosis. At the moment, we don’t have adequate infrastructure to cope with that demand,” Dr. Kohlhaas added.

She noted that blood tests are starting to show their potential as an effective part of the diagnosis and are widely used in research.

“In some cases, they are similar in sensitivity to gold-standard PET scans and lumbar punctures, and they’re less expensive and potentially more scalable on the NHS. What we need to do over the next several years is to understand how they fit into the clinical pathway,” Dr. Kohlhaas said.

The project will involve working with leading dementia researchers to pilot the implementation of potential blood tests in the NHS that can give an early and accurate diagnose of dementia.

The project, which kicks off in January 2024, will receive £5 million ($6.13 million) awarded by the UK Postcode Dream Fund. Specific details regarding the leadership team, participating centers, and specific blood biomarker tests to be trialed will be announced then.

Ms. Carragher and Dr. Kohlhaas reported no relevant financial conflicts of interest.
 

A version of this article appeared on Medscape.com.

TOPLINE:

A history of military service is associated with a 26% increased risk for amyloid plaque and 10% increased risk for elevated tau tangle levels, underscoring the urgent need for amyloid screening among veterans.

METHODOLOGY:

• The study included 597 male decedents who donated their brains to one of two Alzheimer’s Disease Research Center (ADRC) brain bank programs between 1986 and 2018.
• Researchers conducted public data tracing for historical information on military history, which included searching online commercial genealogical databases and paper archives.
• They evaluated tau tangles (using a B score of neurofibrillary tangle deposition in four stages: B0 [not present], B1 [transentorhinal stages], B2 [limbic stages], and B3 [isocortical stages]) and amyloid plaque pathology (using a C score that classifies neuritic amyloid plaque into four categories: no plaques, sparse, moderate, or frequent).
• The study involved three B score comparisons (1, 2, 3 vs. 0; 2, 3 vs. 0, 1; and 3 vs. 0, 1, 2) and two C score comparisons (sparse, moderate, or frequent vs. no plaques, and moderate or frequent vs. no plaque or sparse).

TAKEAWAY:

• Public record tracing determined that 60% of the sample of male decedents had a history of military service; the median year of birth was 1923 and the median year of death was 2007.
• After adjustment for age and year of death, those with a military service history had a 26% increased risk for a higher neuritic amyloid plaque C score compared with those without such history (odds ratio [OR], 1.26; 95% confidence interval [CI], 1.06-1.49), an increase that applied for both relevant comparisons.
• A history of military service was also associated with a 10% greater adjusted odds of a higher neurofibrillary tangle B score (OR, 1.10; 95% CI, 1.08-1.12), with the increase applying to all three comparisons.
• A sensitivity analysis that included both the male decedents and 556 female decedents (increasing the overall sample to 1,153) and was adjusted for sex in addition to age and year of death showed similar results to the male-only sample estimations for both B and C score comparisons.

IN PRACTICE:

Understanding how military service affects AD biological processes is “essential” from a research perspective, the investigators noted. These new findings “emphasize that targeted AD therapies in the veteran population are urgently needed.”

SOURCE:

The study was conducted by W. Ryan Powell, Center for Health Disparities Research and Department of Medicine, Geriatrics Division, University of Wisconsin School of Medicine and Public Health, and colleagues. It was published online in Alzheimer’s & Dementia.

LIMITATIONS:

Selection bias in brain donation is likely because ADRC cohorts are recruitment based. The study was unable to rigorously identify factors that may explain why individuals with military service are at greater risk of having amyloid and tau neuropathology (including the interplay between environmental and genetic risk factors such as apolipoprotein E status).

DISCLOSURES:

The study was supported by the National Institute on Aging. The authors reported no disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

A history of military service is associated with a 26% increased risk for amyloid plaque and 10% increased risk for elevated tau tangle levels, underscoring the urgent need for amyloid screening among veterans.

METHODOLOGY:

• The study included 597 male decedents who donated their brains to one of two Alzheimer’s Disease Research Center (ADRC) brain bank programs between 1986 and 2018.
• Researchers conducted public data tracing for historical information on military history, which included searching online commercial genealogical databases and paper archives.
• They evaluated tau tangles (using a B score of neurofibrillary tangle deposition in four stages: B0 [not present], B1 [transentorhinal stages], B2 [limbic stages], and B3 [isocortical stages]) and amyloid plaque pathology (using a C score that classifies neuritic amyloid plaque into four categories: no plaques, sparse, moderate, or frequent).
• The study involved three B score comparisons (1, 2, 3 vs. 0; 2, 3 vs. 0, 1; and 3 vs. 0, 1, 2) and two C score comparisons (sparse, moderate, or frequent vs. no plaques, and moderate or frequent vs. no plaque or sparse).

TAKEAWAY:

• Public record tracing determined that 60% of the sample of male decedents had a history of military service; the median year of birth was 1923 and the median year of death was 2007.
• After adjustment for age and year of death, those with a military service history had a 26% increased risk for a higher neuritic amyloid plaque C score compared with those without such history (odds ratio [OR], 1.26; 95% confidence interval [CI], 1.06-1.49), an increase that applied for both relevant comparisons.
• A history of military service was also associated with a 10% greater adjusted odds of a higher neurofibrillary tangle B score (OR, 1.10; 95% CI, 1.08-1.12), with the increase applying to all three comparisons.
• A sensitivity analysis that included both the male decedents and 556 female decedents (increasing the overall sample to 1,153) and was adjusted for sex in addition to age and year of death showed similar results to the male-only sample estimations for both B and C score comparisons.

IN PRACTICE:

Understanding how military service affects AD biological processes is “essential” from a research perspective, the investigators noted. These new findings “emphasize that targeted AD therapies in the veteran population are urgently needed.”

SOURCE:

The study was conducted by W. Ryan Powell, Center for Health Disparities Research and Department of Medicine, Geriatrics Division, University of Wisconsin School of Medicine and Public Health, and colleagues. It was published online in Alzheimer’s & Dementia.

LIMITATIONS:

Selection bias in brain donation is likely because ADRC cohorts are recruitment based. The study was unable to rigorously identify factors that may explain why individuals with military service are at greater risk of having amyloid and tau neuropathology (including the interplay between environmental and genetic risk factors such as apolipoprotein E status).

DISCLOSURES:

The study was supported by the National Institute on Aging. The authors reported no disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

A history of military service is associated with a 26% increased risk for amyloid plaque and 10% increased risk for elevated tau tangle levels, underscoring the urgent need for amyloid screening among veterans.

METHODOLOGY:

• The study included 597 male decedents who donated their brains to one of two Alzheimer’s Disease Research Center (ADRC) brain bank programs between 1986 and 2018.
• Researchers conducted public data tracing for historical information on military history, which included searching online commercial genealogical databases and paper archives.
• They evaluated tau tangles (using a B score of neurofibrillary tangle deposition in four stages: B0 [not present], B1 [transentorhinal stages], B2 [limbic stages], and B3 [isocortical stages]) and amyloid plaque pathology (using a C score that classifies neuritic amyloid plaque into four categories: no plaques, sparse, moderate, or frequent).
• The study involved three B score comparisons (1, 2, 3 vs. 0; 2, 3 vs. 0, 1; and 3 vs. 0, 1, 2) and two C score comparisons (sparse, moderate, or frequent vs. no plaques, and moderate or frequent vs. no plaque or sparse).

TAKEAWAY:

• Public record tracing determined that 60% of the sample of male decedents had a history of military service; the median year of birth was 1923 and the median year of death was 2007.
• After adjustment for age and year of death, those with a military service history had a 26% increased risk for a higher neuritic amyloid plaque C score compared with those without such history (odds ratio [OR], 1.26; 95% confidence interval [CI], 1.06-1.49), an increase that applied for both relevant comparisons.
• A history of military service was also associated with a 10% greater adjusted odds of a higher neurofibrillary tangle B score (OR, 1.10; 95% CI, 1.08-1.12), with the increase applying to all three comparisons.
• A sensitivity analysis that included both the male decedents and 556 female decedents (increasing the overall sample to 1,153) and was adjusted for sex in addition to age and year of death showed similar results to the male-only sample estimations for both B and C score comparisons.

IN PRACTICE:

Understanding how military service affects AD biological processes is “essential” from a research perspective, the investigators noted. These new findings “emphasize that targeted AD therapies in the veteran population are urgently needed.”

SOURCE:

The study was conducted by W. Ryan Powell, Center for Health Disparities Research and Department of Medicine, Geriatrics Division, University of Wisconsin School of Medicine and Public Health, and colleagues. It was published online in Alzheimer’s & Dementia.

LIMITATIONS:

Selection bias in brain donation is likely because ADRC cohorts are recruitment based. The study was unable to rigorously identify factors that may explain why individuals with military service are at greater risk of having amyloid and tau neuropathology (including the interplay between environmental and genetic risk factors such as apolipoprotein E status).

DISCLOSURES:

The study was supported by the National Institute on Aging. The authors reported no disclosures.

A version of this article appeared on Medscape.com.