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‘Harm avoidance’ temperament predicts depression in adults
Temperament has been defined as “an individual’s propensity to react emotionally, learn behavior and to form attachments without conscious effort by associative conditioning,” wrote Aleksi Ahola, PhD, of the University of Oulu, Finland, and colleagues. “Temperament is a potential endophenotype for depression, as it is inheritable and genetically linked with depression,” they said. The Temperament and Character Inventory (TCI) includes four temperament traits: harm avoidance (HA), novelty seeking (NS), reward dependence (RD), and persistence (P); previous studies have shown associations between higher HA and depression, but long-term data are limited, they wrote.
In a population-based study published in Comprehensive Psychiatry, the researchers followed 3,999 adults from age 31 to 54 years. The participants were part of the Northern Finland Birth Cohort 1966 Study.
The primary outcome was the onset of depression in a previously mentally healthy adult population. Temperament was assessed using the TCI, and depression was based on the Hopkins system checklist-25 (SCL-25). Individuals with previous psychiatric disorders related to depression, bipolar disorder, or psychosis were excluded. Effect size was measured using the Cohen’s d test.
Overall, 240 individuals were diagnosed with depression over the follow-up period. Women later diagnosed with depression had higher baseline TCI scores for HA, compared with those without depression. After controlling for multiple variables, higher TCI scores for HA, NS, and P were significantly associated with increased risk of any depression.
Among men, the TCI HA score was associated with significantly increased risk of any depression after adjustments, but no association appeared for other TCI scores. However, higher RD was associated with a reduced risk of psychotic depression in men (odds ratio, 0.79), although the study was not designed to assess psychotic depression, the researchers noted.
In an additional analysis of temperament cluster groups, shy and pessimistic traits were associated with depression in men (OR, 1.89), but not in women. In women, the cluster group with no specific extreme personality traits (cluster III) appeared to show an association with depression, which may be related to the association of NS and P with depression, the researchers wrote in their discussion.
The study is the first known to show differences between genders in the prediction of depression based on temperament traits, notably the link between high persistence and the onset of any depression in women, they said.
The study findings were limited by several factors including the potential for missed cases of less severe depression not reported in a national register, and by the relatively small number of men in the study, the researchers noted. In addition, the TCI’s three character traits of self-directedness, cooperativeness, and self-transcendence were not part of the current study, they said.
However, the results were strengthened by the large sample size, premorbid temperament assessment, and long follow-up period, although more research is needed in larger populations using real-world personalities to confirm the findings, they said.
“Research regarding temperament is important as it may have clinical significance as predictor of psychiatric morbidity and even suicide risk,” they said.
“Understanding those potentially at risk of depression could help in preventing the onset of the disease, and creating cluster profiles to match real-world personas could offer a clinical tool for this kind of prevention,” they concluded.
The study was supported by the University of Oulu, Oulu University Hospital, the Ministry of Health and Social Affairs, the National Institute for Health and Welfare, and the Regional Institute of Occupational Health. The researchers had no financial conflicts to disclose.
Temperament has been defined as “an individual’s propensity to react emotionally, learn behavior and to form attachments without conscious effort by associative conditioning,” wrote Aleksi Ahola, PhD, of the University of Oulu, Finland, and colleagues. “Temperament is a potential endophenotype for depression, as it is inheritable and genetically linked with depression,” they said. The Temperament and Character Inventory (TCI) includes four temperament traits: harm avoidance (HA), novelty seeking (NS), reward dependence (RD), and persistence (P); previous studies have shown associations between higher HA and depression, but long-term data are limited, they wrote.
In a population-based study published in Comprehensive Psychiatry, the researchers followed 3,999 adults from age 31 to 54 years. The participants were part of the Northern Finland Birth Cohort 1966 Study.
The primary outcome was the onset of depression in a previously mentally healthy adult population. Temperament was assessed using the TCI, and depression was based on the Hopkins system checklist-25 (SCL-25). Individuals with previous psychiatric disorders related to depression, bipolar disorder, or psychosis were excluded. Effect size was measured using the Cohen’s d test.
Overall, 240 individuals were diagnosed with depression over the follow-up period. Women later diagnosed with depression had higher baseline TCI scores for HA, compared with those without depression. After controlling for multiple variables, higher TCI scores for HA, NS, and P were significantly associated with increased risk of any depression.
Among men, the TCI HA score was associated with significantly increased risk of any depression after adjustments, but no association appeared for other TCI scores. However, higher RD was associated with a reduced risk of psychotic depression in men (odds ratio, 0.79), although the study was not designed to assess psychotic depression, the researchers noted.
In an additional analysis of temperament cluster groups, shy and pessimistic traits were associated with depression in men (OR, 1.89), but not in women. In women, the cluster group with no specific extreme personality traits (cluster III) appeared to show an association with depression, which may be related to the association of NS and P with depression, the researchers wrote in their discussion.
The study is the first known to show differences between genders in the prediction of depression based on temperament traits, notably the link between high persistence and the onset of any depression in women, they said.
The study findings were limited by several factors including the potential for missed cases of less severe depression not reported in a national register, and by the relatively small number of men in the study, the researchers noted. In addition, the TCI’s three character traits of self-directedness, cooperativeness, and self-transcendence were not part of the current study, they said.
However, the results were strengthened by the large sample size, premorbid temperament assessment, and long follow-up period, although more research is needed in larger populations using real-world personalities to confirm the findings, they said.
“Research regarding temperament is important as it may have clinical significance as predictor of psychiatric morbidity and even suicide risk,” they said.
“Understanding those potentially at risk of depression could help in preventing the onset of the disease, and creating cluster profiles to match real-world personas could offer a clinical tool for this kind of prevention,” they concluded.
The study was supported by the University of Oulu, Oulu University Hospital, the Ministry of Health and Social Affairs, the National Institute for Health and Welfare, and the Regional Institute of Occupational Health. The researchers had no financial conflicts to disclose.
Temperament has been defined as “an individual’s propensity to react emotionally, learn behavior and to form attachments without conscious effort by associative conditioning,” wrote Aleksi Ahola, PhD, of the University of Oulu, Finland, and colleagues. “Temperament is a potential endophenotype for depression, as it is inheritable and genetically linked with depression,” they said. The Temperament and Character Inventory (TCI) includes four temperament traits: harm avoidance (HA), novelty seeking (NS), reward dependence (RD), and persistence (P); previous studies have shown associations between higher HA and depression, but long-term data are limited, they wrote.
In a population-based study published in Comprehensive Psychiatry, the researchers followed 3,999 adults from age 31 to 54 years. The participants were part of the Northern Finland Birth Cohort 1966 Study.
The primary outcome was the onset of depression in a previously mentally healthy adult population. Temperament was assessed using the TCI, and depression was based on the Hopkins system checklist-25 (SCL-25). Individuals with previous psychiatric disorders related to depression, bipolar disorder, or psychosis were excluded. Effect size was measured using the Cohen’s d test.
Overall, 240 individuals were diagnosed with depression over the follow-up period. Women later diagnosed with depression had higher baseline TCI scores for HA, compared with those without depression. After controlling for multiple variables, higher TCI scores for HA, NS, and P were significantly associated with increased risk of any depression.
Among men, the TCI HA score was associated with significantly increased risk of any depression after adjustments, but no association appeared for other TCI scores. However, higher RD was associated with a reduced risk of psychotic depression in men (odds ratio, 0.79), although the study was not designed to assess psychotic depression, the researchers noted.
In an additional analysis of temperament cluster groups, shy and pessimistic traits were associated with depression in men (OR, 1.89), but not in women. In women, the cluster group with no specific extreme personality traits (cluster III) appeared to show an association with depression, which may be related to the association of NS and P with depression, the researchers wrote in their discussion.
The study is the first known to show differences between genders in the prediction of depression based on temperament traits, notably the link between high persistence and the onset of any depression in women, they said.
The study findings were limited by several factors including the potential for missed cases of less severe depression not reported in a national register, and by the relatively small number of men in the study, the researchers noted. In addition, the TCI’s three character traits of self-directedness, cooperativeness, and self-transcendence were not part of the current study, they said.
However, the results were strengthened by the large sample size, premorbid temperament assessment, and long follow-up period, although more research is needed in larger populations using real-world personalities to confirm the findings, they said.
“Research regarding temperament is important as it may have clinical significance as predictor of psychiatric morbidity and even suicide risk,” they said.
“Understanding those potentially at risk of depression could help in preventing the onset of the disease, and creating cluster profiles to match real-world personas could offer a clinical tool for this kind of prevention,” they concluded.
The study was supported by the University of Oulu, Oulu University Hospital, the Ministry of Health and Social Affairs, the National Institute for Health and Welfare, and the Regional Institute of Occupational Health. The researchers had no financial conflicts to disclose.
FROM COMPREHENSIVE PSYCHIATRY
Lanolin gets nod for Allergen of the Year
Lanolin is a complex and varying mixture of high molecular weight esters, aliphatic alcohols, sterols, fatty acids, and hydrocarbons, but the allergic components are mainly the free lanolin alcohols, especially alkanediols, said Donald V. Belsito, MD, professor of dermatology, Columbia University, New York, who announced the Allergen of the Year at the society’s annual meeting.
Criteria for selection can include a known allergen with a new twist or increasing frequency or a newly reported allergen with mini-epidemics that may have been missed for years, Dr. Belsito said.
“The prevalence and severity of allergy to ‘lanolin’ have been hotly debated” since a potential case was first reported in the 1920s, wrote Dr. Belsito and Blair A. Jenkins, MD, PhD, a dermatology resident at New York–Presbyterian Hospital, Columbia Campus, in a review published in Dermatitis.
“ ‘Lanolin’ is indeed a paradox allergen,” wrote Dr. Jenkins and Dr. Belsito. “The most appropriate patch test preparation(s) for detecting allergy remain disputed. Detection of lanolin-induced contact dermatitis in diseased skin by patch testing on normal skin may lead to false negative results.”
And those who test positive for a lanolin allergy on diseased skin may be able to use lanolin products on normal skin, they wrote.
“From my perspective, this was a timely year to think about lanolin, as there is significant ongoing controversy about whether it is allergenic,” Dr. Jenkins said in an interview. “Numerous companies market lanolin-containing topicals as safe and effective emollients,” she said.
Medical grade and highly purified anhydrous lanolin, which contain less than 2.5% and less than 1.5% of free alcohols, respectively, can still elicit or induce a contact allergy, Dr. Belsito said in his presentation. Hydrogenated lanolin has shown more allergenicity than lanolin alcohol, while lanolin wax, lanolin acid, and lanolin esters possess lower allergenicity than lanolin alcohol, he said.
Notably, modern wool textiles do not contain lanolin, and lanolin-allergic patients need not avoid wool, Dr. Belsito added.
Amerchol L-101, a common trade name on products containing lanolin, contains 10% wool wax alcohols obtained from the hydrolysis of wool fat dissolved in mineral oil at a 1:1 ratio, said Dr. Belsito. He recommended testing lanolin alcohols (in 30% petrolatum) and Amerchol L-101 (in 50% petrolatum) simultaneously with or without other lanolin derivatives and/or the patient’s products in cases of possible allergy, he said.
Consider high-risk groups
Current evidence suggests that the prevalence of contact allergy in the western European population is 0.4%, wrote Dr. Jenkins and Dr. Belsito.
Although the frequency of lanolin allergy is relatively low, certain conditions convey greater risk, such as stasis dermatitis, leg ulcers, perianal/genital dermatitis, and atopic dermatitis, they wrote. Older adults and children are at increased risk because they are more likely to have these conditions. Demographic data also suggest that lanolin allergy is more common in non-Hispanic Whites than in non-Hispanic Blacks, they wrote.
Looking ahead, “I think further exploration of allergy across different skin types and ethnicities is warranted,” Dr. Jenkins said. “Further investigation of ideal [lanolin] allergens for patch testing is also needed.”
Dr. Jenkins and Dr. Belsito said they had no relevant financial conflicts to disclose.
Lanolin is a complex and varying mixture of high molecular weight esters, aliphatic alcohols, sterols, fatty acids, and hydrocarbons, but the allergic components are mainly the free lanolin alcohols, especially alkanediols, said Donald V. Belsito, MD, professor of dermatology, Columbia University, New York, who announced the Allergen of the Year at the society’s annual meeting.
Criteria for selection can include a known allergen with a new twist or increasing frequency or a newly reported allergen with mini-epidemics that may have been missed for years, Dr. Belsito said.
“The prevalence and severity of allergy to ‘lanolin’ have been hotly debated” since a potential case was first reported in the 1920s, wrote Dr. Belsito and Blair A. Jenkins, MD, PhD, a dermatology resident at New York–Presbyterian Hospital, Columbia Campus, in a review published in Dermatitis.
“ ‘Lanolin’ is indeed a paradox allergen,” wrote Dr. Jenkins and Dr. Belsito. “The most appropriate patch test preparation(s) for detecting allergy remain disputed. Detection of lanolin-induced contact dermatitis in diseased skin by patch testing on normal skin may lead to false negative results.”
And those who test positive for a lanolin allergy on diseased skin may be able to use lanolin products on normal skin, they wrote.
“From my perspective, this was a timely year to think about lanolin, as there is significant ongoing controversy about whether it is allergenic,” Dr. Jenkins said in an interview. “Numerous companies market lanolin-containing topicals as safe and effective emollients,” she said.
Medical grade and highly purified anhydrous lanolin, which contain less than 2.5% and less than 1.5% of free alcohols, respectively, can still elicit or induce a contact allergy, Dr. Belsito said in his presentation. Hydrogenated lanolin has shown more allergenicity than lanolin alcohol, while lanolin wax, lanolin acid, and lanolin esters possess lower allergenicity than lanolin alcohol, he said.
Notably, modern wool textiles do not contain lanolin, and lanolin-allergic patients need not avoid wool, Dr. Belsito added.
Amerchol L-101, a common trade name on products containing lanolin, contains 10% wool wax alcohols obtained from the hydrolysis of wool fat dissolved in mineral oil at a 1:1 ratio, said Dr. Belsito. He recommended testing lanolin alcohols (in 30% petrolatum) and Amerchol L-101 (in 50% petrolatum) simultaneously with or without other lanolin derivatives and/or the patient’s products in cases of possible allergy, he said.
Consider high-risk groups
Current evidence suggests that the prevalence of contact allergy in the western European population is 0.4%, wrote Dr. Jenkins and Dr. Belsito.
Although the frequency of lanolin allergy is relatively low, certain conditions convey greater risk, such as stasis dermatitis, leg ulcers, perianal/genital dermatitis, and atopic dermatitis, they wrote. Older adults and children are at increased risk because they are more likely to have these conditions. Demographic data also suggest that lanolin allergy is more common in non-Hispanic Whites than in non-Hispanic Blacks, they wrote.
Looking ahead, “I think further exploration of allergy across different skin types and ethnicities is warranted,” Dr. Jenkins said. “Further investigation of ideal [lanolin] allergens for patch testing is also needed.”
Dr. Jenkins and Dr. Belsito said they had no relevant financial conflicts to disclose.
Lanolin is a complex and varying mixture of high molecular weight esters, aliphatic alcohols, sterols, fatty acids, and hydrocarbons, but the allergic components are mainly the free lanolin alcohols, especially alkanediols, said Donald V. Belsito, MD, professor of dermatology, Columbia University, New York, who announced the Allergen of the Year at the society’s annual meeting.
Criteria for selection can include a known allergen with a new twist or increasing frequency or a newly reported allergen with mini-epidemics that may have been missed for years, Dr. Belsito said.
“The prevalence and severity of allergy to ‘lanolin’ have been hotly debated” since a potential case was first reported in the 1920s, wrote Dr. Belsito and Blair A. Jenkins, MD, PhD, a dermatology resident at New York–Presbyterian Hospital, Columbia Campus, in a review published in Dermatitis.
“ ‘Lanolin’ is indeed a paradox allergen,” wrote Dr. Jenkins and Dr. Belsito. “The most appropriate patch test preparation(s) for detecting allergy remain disputed. Detection of lanolin-induced contact dermatitis in diseased skin by patch testing on normal skin may lead to false negative results.”
And those who test positive for a lanolin allergy on diseased skin may be able to use lanolin products on normal skin, they wrote.
“From my perspective, this was a timely year to think about lanolin, as there is significant ongoing controversy about whether it is allergenic,” Dr. Jenkins said in an interview. “Numerous companies market lanolin-containing topicals as safe and effective emollients,” she said.
Medical grade and highly purified anhydrous lanolin, which contain less than 2.5% and less than 1.5% of free alcohols, respectively, can still elicit or induce a contact allergy, Dr. Belsito said in his presentation. Hydrogenated lanolin has shown more allergenicity than lanolin alcohol, while lanolin wax, lanolin acid, and lanolin esters possess lower allergenicity than lanolin alcohol, he said.
Notably, modern wool textiles do not contain lanolin, and lanolin-allergic patients need not avoid wool, Dr. Belsito added.
Amerchol L-101, a common trade name on products containing lanolin, contains 10% wool wax alcohols obtained from the hydrolysis of wool fat dissolved in mineral oil at a 1:1 ratio, said Dr. Belsito. He recommended testing lanolin alcohols (in 30% petrolatum) and Amerchol L-101 (in 50% petrolatum) simultaneously with or without other lanolin derivatives and/or the patient’s products in cases of possible allergy, he said.
Consider high-risk groups
Current evidence suggests that the prevalence of contact allergy in the western European population is 0.4%, wrote Dr. Jenkins and Dr. Belsito.
Although the frequency of lanolin allergy is relatively low, certain conditions convey greater risk, such as stasis dermatitis, leg ulcers, perianal/genital dermatitis, and atopic dermatitis, they wrote. Older adults and children are at increased risk because they are more likely to have these conditions. Demographic data also suggest that lanolin allergy is more common in non-Hispanic Whites than in non-Hispanic Blacks, they wrote.
Looking ahead, “I think further exploration of allergy across different skin types and ethnicities is warranted,” Dr. Jenkins said. “Further investigation of ideal [lanolin] allergens for patch testing is also needed.”
Dr. Jenkins and Dr. Belsito said they had no relevant financial conflicts to disclose.
FROM ACDS 2023
Antioxidants may ease anxiety and depression
The prevalence of anxiety and depression has increased worldwide, especially in the wake of the COVID-19 pandemic. “Therefore, identifying specific interventions that improve depressive status is critical for public health policy,” wrote Huan Wang, MD, of First Hospital of Jilin University, Changchun, China, and colleagues.
Recent evidence suggests that modifiable lifestyle factors, including nutrition, may have a positive impact on symptoms of anxiety and depression, and observational studies have shown that antioxidant supplements affect depressive status, but data from randomized, controlled trials are limited by small sample sizes, they wrote.
In a study published in the Journal of Affective Disorders, the researchers conducted a meta-analysis of 52 studies with a total of 4,049 patients. Of these, 2,004 received antioxidant supplements and 2,045 received a placebo supplement or no supplements. The median treatment duration was 11 weeks; treatment durations ranged from 2 weeks to 2 years. All 52 studies addressed the effect of antioxidants on depressive status, and 21 studies also assessed anxiety status. The studies used a range of depression scales, including the Beck Depression Inventory, the Edinburgh Postnatal Depression Scale, Montgomery-Asberg Depression Rating Scale, Hamilton Depression Rating Scale, Center for Epidemiologic Studies–Depression, and Hospital Anxiety and Depression Scale.
Overall, the meta-analysis revealed a statistically significant improvement in depressive status associated with antioxidant supplement use (standardized mean difference, 0.60; P < .00001). When broken down by supplement, significant positive effects appeared for magnesium (SMD = 0.16; P = .03), zinc (SMD = 0.59; P = .01), selenium (SMD = 0.33; P = .009), CoQ10 (SMD = 0.97; P = .05), tea and coffee (SMD = 1.15; P = .001) and crocin (MD = 6.04; P < .00001).
As a secondary outcome, antioxidant supplementation had a significantly positive effect on anxiety (SMD = 0.40; P < .00001).
The mechanism of action for the effect of antioxidants remains unclear, the researchers wrote in their discussion, but, “Depriving or boosting the supply of food components with antioxidant capabilities might worsen or lessen oxidative stress,” they said.
The researchers attempted a subgroup analysis across countries, and found that, while antioxidant supplementation improved depressive status in populations from Iran, China, and Italy, “no significant improvement was found in the United States, Australia, Italy and other countries.” The reasons for this difference might be related to fewer studies from these countries, or “the improvement brought about by antioxidants might be particularly pronounced in people with significant depression and higher depression scores,” they wrote. “Studies have shown that Asian countries have fewer psychiatrists and more expensive treatments,” they added.
The findings were limited by several factors including the inability to include all types of antioxidant supplements, the range of depression rating scales, and insufficient subgroup analysis of the range of populations from the included studies, the researchers noted.
“Additional data from large clinical trials are needed to confirm the efficacy and safety of antioxidant supplements in improving depressive status,” they said. However, the results suggest that antioxidants may play a role as an adjunct treatment to conventional antidepressants, they concluded.
The study was funded by the National Natural Science Foundation of China. The researchers had no financial conflicts to disclose.
The prevalence of anxiety and depression has increased worldwide, especially in the wake of the COVID-19 pandemic. “Therefore, identifying specific interventions that improve depressive status is critical for public health policy,” wrote Huan Wang, MD, of First Hospital of Jilin University, Changchun, China, and colleagues.
Recent evidence suggests that modifiable lifestyle factors, including nutrition, may have a positive impact on symptoms of anxiety and depression, and observational studies have shown that antioxidant supplements affect depressive status, but data from randomized, controlled trials are limited by small sample sizes, they wrote.
In a study published in the Journal of Affective Disorders, the researchers conducted a meta-analysis of 52 studies with a total of 4,049 patients. Of these, 2,004 received antioxidant supplements and 2,045 received a placebo supplement or no supplements. The median treatment duration was 11 weeks; treatment durations ranged from 2 weeks to 2 years. All 52 studies addressed the effect of antioxidants on depressive status, and 21 studies also assessed anxiety status. The studies used a range of depression scales, including the Beck Depression Inventory, the Edinburgh Postnatal Depression Scale, Montgomery-Asberg Depression Rating Scale, Hamilton Depression Rating Scale, Center for Epidemiologic Studies–Depression, and Hospital Anxiety and Depression Scale.
Overall, the meta-analysis revealed a statistically significant improvement in depressive status associated with antioxidant supplement use (standardized mean difference, 0.60; P < .00001). When broken down by supplement, significant positive effects appeared for magnesium (SMD = 0.16; P = .03), zinc (SMD = 0.59; P = .01), selenium (SMD = 0.33; P = .009), CoQ10 (SMD = 0.97; P = .05), tea and coffee (SMD = 1.15; P = .001) and crocin (MD = 6.04; P < .00001).
As a secondary outcome, antioxidant supplementation had a significantly positive effect on anxiety (SMD = 0.40; P < .00001).
The mechanism of action for the effect of antioxidants remains unclear, the researchers wrote in their discussion, but, “Depriving or boosting the supply of food components with antioxidant capabilities might worsen or lessen oxidative stress,” they said.
The researchers attempted a subgroup analysis across countries, and found that, while antioxidant supplementation improved depressive status in populations from Iran, China, and Italy, “no significant improvement was found in the United States, Australia, Italy and other countries.” The reasons for this difference might be related to fewer studies from these countries, or “the improvement brought about by antioxidants might be particularly pronounced in people with significant depression and higher depression scores,” they wrote. “Studies have shown that Asian countries have fewer psychiatrists and more expensive treatments,” they added.
The findings were limited by several factors including the inability to include all types of antioxidant supplements, the range of depression rating scales, and insufficient subgroup analysis of the range of populations from the included studies, the researchers noted.
“Additional data from large clinical trials are needed to confirm the efficacy and safety of antioxidant supplements in improving depressive status,” they said. However, the results suggest that antioxidants may play a role as an adjunct treatment to conventional antidepressants, they concluded.
The study was funded by the National Natural Science Foundation of China. The researchers had no financial conflicts to disclose.
The prevalence of anxiety and depression has increased worldwide, especially in the wake of the COVID-19 pandemic. “Therefore, identifying specific interventions that improve depressive status is critical for public health policy,” wrote Huan Wang, MD, of First Hospital of Jilin University, Changchun, China, and colleagues.
Recent evidence suggests that modifiable lifestyle factors, including nutrition, may have a positive impact on symptoms of anxiety and depression, and observational studies have shown that antioxidant supplements affect depressive status, but data from randomized, controlled trials are limited by small sample sizes, they wrote.
In a study published in the Journal of Affective Disorders, the researchers conducted a meta-analysis of 52 studies with a total of 4,049 patients. Of these, 2,004 received antioxidant supplements and 2,045 received a placebo supplement or no supplements. The median treatment duration was 11 weeks; treatment durations ranged from 2 weeks to 2 years. All 52 studies addressed the effect of antioxidants on depressive status, and 21 studies also assessed anxiety status. The studies used a range of depression scales, including the Beck Depression Inventory, the Edinburgh Postnatal Depression Scale, Montgomery-Asberg Depression Rating Scale, Hamilton Depression Rating Scale, Center for Epidemiologic Studies–Depression, and Hospital Anxiety and Depression Scale.
Overall, the meta-analysis revealed a statistically significant improvement in depressive status associated with antioxidant supplement use (standardized mean difference, 0.60; P < .00001). When broken down by supplement, significant positive effects appeared for magnesium (SMD = 0.16; P = .03), zinc (SMD = 0.59; P = .01), selenium (SMD = 0.33; P = .009), CoQ10 (SMD = 0.97; P = .05), tea and coffee (SMD = 1.15; P = .001) and crocin (MD = 6.04; P < .00001).
As a secondary outcome, antioxidant supplementation had a significantly positive effect on anxiety (SMD = 0.40; P < .00001).
The mechanism of action for the effect of antioxidants remains unclear, the researchers wrote in their discussion, but, “Depriving or boosting the supply of food components with antioxidant capabilities might worsen or lessen oxidative stress,” they said.
The researchers attempted a subgroup analysis across countries, and found that, while antioxidant supplementation improved depressive status in populations from Iran, China, and Italy, “no significant improvement was found in the United States, Australia, Italy and other countries.” The reasons for this difference might be related to fewer studies from these countries, or “the improvement brought about by antioxidants might be particularly pronounced in people with significant depression and higher depression scores,” they wrote. “Studies have shown that Asian countries have fewer psychiatrists and more expensive treatments,” they added.
The findings were limited by several factors including the inability to include all types of antioxidant supplements, the range of depression rating scales, and insufficient subgroup analysis of the range of populations from the included studies, the researchers noted.
“Additional data from large clinical trials are needed to confirm the efficacy and safety of antioxidant supplements in improving depressive status,” they said. However, the results suggest that antioxidants may play a role as an adjunct treatment to conventional antidepressants, they concluded.
The study was funded by the National Natural Science Foundation of China. The researchers had no financial conflicts to disclose.
FROM THE JOURNAL OF AFFECTIVE DISORDERS
Adherence to DASH diet reduced risk of COPD
Greater adherence to the Dietary Approaches to Stop Hypertension (DASH) diet was associated with a significantly reduced risk of chronic obstructive pulmonary disease (COPD) and improved lung function, based on data from more than 28,000 individuals in the United States.
Mediterranean diet on COPD in particular has not been well studied, Jingli Wen, MD, of Nanjing Medical University, Jiangsu, China, and colleagues wrote.
In a study published in Frontiers in Nutrition, the researchers reviewed data from 28,605 adult participants in the National Health and Nutrition Examination Survey from 1999 to 2018.
The study population included 2,488 individuals with COPD participants and 25,607 individuals without COPD; the mean ages of the COPD and non-COPD groups were 60.2 years and 56.9 years, and the proportion of women was 63.7% and 51.4%, respectively. The primary outcome was the prevalence of COPD, defined as self-reports of a diagnosis of chronic bronchitis or emphysema. DASH diet scores were based on consumption of nine target nutrients: saturated fat, total fat, protein, cholesterol, fiber, magnesium, calcium, potassium, and sodium. Scores for compliance with the Mediterranean diet were based on intake of eight food categories: fruits, vegetables, legumes, fish, red meat, dairy products, alcohol, and olive oil.
Overall, a higher score for adherence to the DASH diet was significantly associated with a lower COPD risk (odds ratio, 0.83; P = .021). This association remained significant in subgroups of younger adults (OR, 0.74), men (OR, 0.73), and smokers (OR, 0.82).
By contrast, adherence to the Mediterranean diet was not significantly associated with COPD prevalence (OR, 1.03; P = .697).
The researchers also found a correlation between DASH diet adherence and improved lung function, especially among individuals without COPD. The risk of FEV1: forced vital capacity decrease, as well as dyspnea, cough, and expectoration, were negatively associated with greater adherence to the DASH diet, but greater adherence to the Mediterranean diet was only negatively associated with cough risk.
The relationship between the DASH diet and reduced COPD risk persisted after adjusting for occupational exposure and excluding participants with cardiovascular disease, cancer, or diabetes.
The current study is the first known to focus on the association between DASH diet and the risk of COPD among adults in the United States, the researchers wrote. The lack of effect of the Mediterranean diet on COPD, in contrast to some studies in other countries, “suggests that regional differences in diet may affect the role of diet in the development of COPD.”
The study findings were limited by several factors including the cross-sectional design that prevented conclusions of causality, the researchers noted. Other limitations included the lack of data of the impact of poor living habits, such as smoking, on food decisions, the use of short-term 24-hour dietary recall, and the reliance of self-reports for a diagnosis of COPD.
However, the results support the role of diet in COPD pathogenesis and expand the knowledge of relationships between the DASH diet and major chronic diseases, the researchers said. More prospective studies and clinical intervention studies are needed, but the findings should encourage clinicians to consider the potential role of a healthy diet in promoting lung health.
The study was supported by the Department of Health, Jiangsu Province, China. The researchers had no financial conflicts to disclose.
Greater adherence to the Dietary Approaches to Stop Hypertension (DASH) diet was associated with a significantly reduced risk of chronic obstructive pulmonary disease (COPD) and improved lung function, based on data from more than 28,000 individuals in the United States.
Mediterranean diet on COPD in particular has not been well studied, Jingli Wen, MD, of Nanjing Medical University, Jiangsu, China, and colleagues wrote.
In a study published in Frontiers in Nutrition, the researchers reviewed data from 28,605 adult participants in the National Health and Nutrition Examination Survey from 1999 to 2018.
The study population included 2,488 individuals with COPD participants and 25,607 individuals without COPD; the mean ages of the COPD and non-COPD groups were 60.2 years and 56.9 years, and the proportion of women was 63.7% and 51.4%, respectively. The primary outcome was the prevalence of COPD, defined as self-reports of a diagnosis of chronic bronchitis or emphysema. DASH diet scores were based on consumption of nine target nutrients: saturated fat, total fat, protein, cholesterol, fiber, magnesium, calcium, potassium, and sodium. Scores for compliance with the Mediterranean diet were based on intake of eight food categories: fruits, vegetables, legumes, fish, red meat, dairy products, alcohol, and olive oil.
Overall, a higher score for adherence to the DASH diet was significantly associated with a lower COPD risk (odds ratio, 0.83; P = .021). This association remained significant in subgroups of younger adults (OR, 0.74), men (OR, 0.73), and smokers (OR, 0.82).
By contrast, adherence to the Mediterranean diet was not significantly associated with COPD prevalence (OR, 1.03; P = .697).
The researchers also found a correlation between DASH diet adherence and improved lung function, especially among individuals without COPD. The risk of FEV1: forced vital capacity decrease, as well as dyspnea, cough, and expectoration, were negatively associated with greater adherence to the DASH diet, but greater adherence to the Mediterranean diet was only negatively associated with cough risk.
The relationship between the DASH diet and reduced COPD risk persisted after adjusting for occupational exposure and excluding participants with cardiovascular disease, cancer, or diabetes.
The current study is the first known to focus on the association between DASH diet and the risk of COPD among adults in the United States, the researchers wrote. The lack of effect of the Mediterranean diet on COPD, in contrast to some studies in other countries, “suggests that regional differences in diet may affect the role of diet in the development of COPD.”
The study findings were limited by several factors including the cross-sectional design that prevented conclusions of causality, the researchers noted. Other limitations included the lack of data of the impact of poor living habits, such as smoking, on food decisions, the use of short-term 24-hour dietary recall, and the reliance of self-reports for a diagnosis of COPD.
However, the results support the role of diet in COPD pathogenesis and expand the knowledge of relationships between the DASH diet and major chronic diseases, the researchers said. More prospective studies and clinical intervention studies are needed, but the findings should encourage clinicians to consider the potential role of a healthy diet in promoting lung health.
The study was supported by the Department of Health, Jiangsu Province, China. The researchers had no financial conflicts to disclose.
Greater adherence to the Dietary Approaches to Stop Hypertension (DASH) diet was associated with a significantly reduced risk of chronic obstructive pulmonary disease (COPD) and improved lung function, based on data from more than 28,000 individuals in the United States.
Mediterranean diet on COPD in particular has not been well studied, Jingli Wen, MD, of Nanjing Medical University, Jiangsu, China, and colleagues wrote.
In a study published in Frontiers in Nutrition, the researchers reviewed data from 28,605 adult participants in the National Health and Nutrition Examination Survey from 1999 to 2018.
The study population included 2,488 individuals with COPD participants and 25,607 individuals without COPD; the mean ages of the COPD and non-COPD groups were 60.2 years and 56.9 years, and the proportion of women was 63.7% and 51.4%, respectively. The primary outcome was the prevalence of COPD, defined as self-reports of a diagnosis of chronic bronchitis or emphysema. DASH diet scores were based on consumption of nine target nutrients: saturated fat, total fat, protein, cholesterol, fiber, magnesium, calcium, potassium, and sodium. Scores for compliance with the Mediterranean diet were based on intake of eight food categories: fruits, vegetables, legumes, fish, red meat, dairy products, alcohol, and olive oil.
Overall, a higher score for adherence to the DASH diet was significantly associated with a lower COPD risk (odds ratio, 0.83; P = .021). This association remained significant in subgroups of younger adults (OR, 0.74), men (OR, 0.73), and smokers (OR, 0.82).
By contrast, adherence to the Mediterranean diet was not significantly associated with COPD prevalence (OR, 1.03; P = .697).
The researchers also found a correlation between DASH diet adherence and improved lung function, especially among individuals without COPD. The risk of FEV1: forced vital capacity decrease, as well as dyspnea, cough, and expectoration, were negatively associated with greater adherence to the DASH diet, but greater adherence to the Mediterranean diet was only negatively associated with cough risk.
The relationship between the DASH diet and reduced COPD risk persisted after adjusting for occupational exposure and excluding participants with cardiovascular disease, cancer, or diabetes.
The current study is the first known to focus on the association between DASH diet and the risk of COPD among adults in the United States, the researchers wrote. The lack of effect of the Mediterranean diet on COPD, in contrast to some studies in other countries, “suggests that regional differences in diet may affect the role of diet in the development of COPD.”
The study findings were limited by several factors including the cross-sectional design that prevented conclusions of causality, the researchers noted. Other limitations included the lack of data of the impact of poor living habits, such as smoking, on food decisions, the use of short-term 24-hour dietary recall, and the reliance of self-reports for a diagnosis of COPD.
However, the results support the role of diet in COPD pathogenesis and expand the knowledge of relationships between the DASH diet and major chronic diseases, the researchers said. More prospective studies and clinical intervention studies are needed, but the findings should encourage clinicians to consider the potential role of a healthy diet in promoting lung health.
The study was supported by the Department of Health, Jiangsu Province, China. The researchers had no financial conflicts to disclose.
FROM FRONTIERS IN NUTRITION
Gestational diabetes affects fetal lung development
Lung development in the fetus may be adversely affected by a mother’s gestational diabetes, based on data from in vivo, in vitro, and ex vivo studies.
Gestational diabetes mellitus (GDM) has recently been associated with fetal lung underdevelopment (FLUD) and delayed lung maturation that may lead to immediate respiratory distress in newborns and later chronic lung disease, Pengzheng Chen, PhD, of Shandong University, Jinan, China, and colleagues wrote.
Antenatal corticosteroids are considered an effective treatment for gestational fetal lung underdevelopment, but recent studies have shown adverse effects of these medications, and therefore more research is needed to identify the etiology and pathogenesis of FLUD induced by GDM, they said.
In a study published in the International Journal of Nanomedicine, the researchers collected umbilical cord blood samples from patients with GDM and matched controls at a single hospital in China.
“Using an ex vivo exosome exposure model of fetal lung explants, we observed the morphological alteration of lung explants and evaluated the expression of molecules involved in lung development,” the researchers wrote.
Fetal lung underdevelopment was more common after exposure to exosomes from the umbilical cord plasma of individuals with gestational diabetes mellitus, compared with exosomes from healthy controls.
The researchers also used mouse models to examine the effects of exosomes on fetal lung development in vivo. They found that exosomes associated with GDM impeded the growth, branching morphogenesis, and maturation of fetal lungs in mouse models. In addition, the expression of the apoptotic biomarkers known as BAX, BIM, and cleaved CASPASE-3 was up-regulated in GDMUB-exosomes and HG-exos groups, but the antiapoptotic protein BCL-2 was down-regulated; this further supported the negative impact of GDM exomes on fetal lung development, the researchers said.
The researchers then conducted miRNA sequencing, which showed that the miRNA in placenta-derived exosomes from GDM pregnancies were distinct from the miRNA in exosomes from healthy control pregnancies.
The study findings were limited by several factors including the impurity of the isolated placenta-derived exosomes from the umbilical cord blood plasma, which were not placenta specific, the researchers noted. Other limitations included the lack of data on different stages of lung development, and more research is needed to validate miRNAs and to explore the signally pathways involved in fetal lung development.
However, the study is the first known to demonstrate an adverse effect of GDM on fetal lung development via in vitro, ex vivo, and in vitro models, they said.
“These data highlight an emerging role of placenta-derived exosomes in the pathogenesis of fetal lung underdevelopment in GDM pregnancies, and provide a novel strategy for maternal-fetal communication,” they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
Lung development in the fetus may be adversely affected by a mother’s gestational diabetes, based on data from in vivo, in vitro, and ex vivo studies.
Gestational diabetes mellitus (GDM) has recently been associated with fetal lung underdevelopment (FLUD) and delayed lung maturation that may lead to immediate respiratory distress in newborns and later chronic lung disease, Pengzheng Chen, PhD, of Shandong University, Jinan, China, and colleagues wrote.
Antenatal corticosteroids are considered an effective treatment for gestational fetal lung underdevelopment, but recent studies have shown adverse effects of these medications, and therefore more research is needed to identify the etiology and pathogenesis of FLUD induced by GDM, they said.
In a study published in the International Journal of Nanomedicine, the researchers collected umbilical cord blood samples from patients with GDM and matched controls at a single hospital in China.
“Using an ex vivo exosome exposure model of fetal lung explants, we observed the morphological alteration of lung explants and evaluated the expression of molecules involved in lung development,” the researchers wrote.
Fetal lung underdevelopment was more common after exposure to exosomes from the umbilical cord plasma of individuals with gestational diabetes mellitus, compared with exosomes from healthy controls.
The researchers also used mouse models to examine the effects of exosomes on fetal lung development in vivo. They found that exosomes associated with GDM impeded the growth, branching morphogenesis, and maturation of fetal lungs in mouse models. In addition, the expression of the apoptotic biomarkers known as BAX, BIM, and cleaved CASPASE-3 was up-regulated in GDMUB-exosomes and HG-exos groups, but the antiapoptotic protein BCL-2 was down-regulated; this further supported the negative impact of GDM exomes on fetal lung development, the researchers said.
The researchers then conducted miRNA sequencing, which showed that the miRNA in placenta-derived exosomes from GDM pregnancies were distinct from the miRNA in exosomes from healthy control pregnancies.
The study findings were limited by several factors including the impurity of the isolated placenta-derived exosomes from the umbilical cord blood plasma, which were not placenta specific, the researchers noted. Other limitations included the lack of data on different stages of lung development, and more research is needed to validate miRNAs and to explore the signally pathways involved in fetal lung development.
However, the study is the first known to demonstrate an adverse effect of GDM on fetal lung development via in vitro, ex vivo, and in vitro models, they said.
“These data highlight an emerging role of placenta-derived exosomes in the pathogenesis of fetal lung underdevelopment in GDM pregnancies, and provide a novel strategy for maternal-fetal communication,” they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
Lung development in the fetus may be adversely affected by a mother’s gestational diabetes, based on data from in vivo, in vitro, and ex vivo studies.
Gestational diabetes mellitus (GDM) has recently been associated with fetal lung underdevelopment (FLUD) and delayed lung maturation that may lead to immediate respiratory distress in newborns and later chronic lung disease, Pengzheng Chen, PhD, of Shandong University, Jinan, China, and colleagues wrote.
Antenatal corticosteroids are considered an effective treatment for gestational fetal lung underdevelopment, but recent studies have shown adverse effects of these medications, and therefore more research is needed to identify the etiology and pathogenesis of FLUD induced by GDM, they said.
In a study published in the International Journal of Nanomedicine, the researchers collected umbilical cord blood samples from patients with GDM and matched controls at a single hospital in China.
“Using an ex vivo exosome exposure model of fetal lung explants, we observed the morphological alteration of lung explants and evaluated the expression of molecules involved in lung development,” the researchers wrote.
Fetal lung underdevelopment was more common after exposure to exosomes from the umbilical cord plasma of individuals with gestational diabetes mellitus, compared with exosomes from healthy controls.
The researchers also used mouse models to examine the effects of exosomes on fetal lung development in vivo. They found that exosomes associated with GDM impeded the growth, branching morphogenesis, and maturation of fetal lungs in mouse models. In addition, the expression of the apoptotic biomarkers known as BAX, BIM, and cleaved CASPASE-3 was up-regulated in GDMUB-exosomes and HG-exos groups, but the antiapoptotic protein BCL-2 was down-regulated; this further supported the negative impact of GDM exomes on fetal lung development, the researchers said.
The researchers then conducted miRNA sequencing, which showed that the miRNA in placenta-derived exosomes from GDM pregnancies were distinct from the miRNA in exosomes from healthy control pregnancies.
The study findings were limited by several factors including the impurity of the isolated placenta-derived exosomes from the umbilical cord blood plasma, which were not placenta specific, the researchers noted. Other limitations included the lack of data on different stages of lung development, and more research is needed to validate miRNAs and to explore the signally pathways involved in fetal lung development.
However, the study is the first known to demonstrate an adverse effect of GDM on fetal lung development via in vitro, ex vivo, and in vitro models, they said.
“These data highlight an emerging role of placenta-derived exosomes in the pathogenesis of fetal lung underdevelopment in GDM pregnancies, and provide a novel strategy for maternal-fetal communication,” they concluded.
The study received no outside funding. The researchers had no financial conflicts to disclose.
FROM THE INTERNATIONAL JOURNAL OF NANOMEDICINE
FDA warns about anaphylaxis after false-negative allergen tests
The Food and Drug Administration has issued a warning about the potential for patients to experience anaphylactic reactions after a negative skin test with any allergenic extract used to diagnose food allergies.
The FDA is requiring that an anaphylaxis warning after false-negative food allergen skin test results be added to the labels of these products in light of reports to the FDA’s Adverse Event Reporting System (FAERS), according to a March 3 statement.
The action follows the recognition of an increase in adverse event reports of false-negative test results with specific lots of “ALK-Abello’s Allergenic Extract-Peanut (Arachis hypogaea) – For Diagnostic Use Only.” Some of these reports “were associated with life-threatening anaphylaxis from subsequent exposure to peanut,” according to the statement. “FDA determined that the risk of anaphylaxis following false-negative food allergen skin test results is applicable to all allergenic extracts for the diagnosis of food allergies,” the statement notes.
To date, four lots of allergenic extracts have been voluntarily withdrawn from the market by the manufacturer, in November and December 2022, and should not be used.
Although some allergenic extracts are standardized, those used in the diagnosis of food allergy currently licensed by the FDA for use in the United States are nonstandardized, so potency may vary by lot.
The FDA advises health care professionals to consider confirming a negative skin test with serologic testing for peanut-specific IgE or conducting a medically supervised oral food challenge in patients, “based on the patient’s clinical history and the index of suspicion.”
The FDA also urges patients to discuss negative food allergen skin test results with their health care providers to determine the possible need for additional testing and to review the symptoms of a severe allergic reaction.
Any adverse events or side effects associated with allergenic products should be reported to the FDA via the FDA’s MedWatch Safety Information and Adverse Event Reporting Program.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has issued a warning about the potential for patients to experience anaphylactic reactions after a negative skin test with any allergenic extract used to diagnose food allergies.
The FDA is requiring that an anaphylaxis warning after false-negative food allergen skin test results be added to the labels of these products in light of reports to the FDA’s Adverse Event Reporting System (FAERS), according to a March 3 statement.
The action follows the recognition of an increase in adverse event reports of false-negative test results with specific lots of “ALK-Abello’s Allergenic Extract-Peanut (Arachis hypogaea) – For Diagnostic Use Only.” Some of these reports “were associated with life-threatening anaphylaxis from subsequent exposure to peanut,” according to the statement. “FDA determined that the risk of anaphylaxis following false-negative food allergen skin test results is applicable to all allergenic extracts for the diagnosis of food allergies,” the statement notes.
To date, four lots of allergenic extracts have been voluntarily withdrawn from the market by the manufacturer, in November and December 2022, and should not be used.
Although some allergenic extracts are standardized, those used in the diagnosis of food allergy currently licensed by the FDA for use in the United States are nonstandardized, so potency may vary by lot.
The FDA advises health care professionals to consider confirming a negative skin test with serologic testing for peanut-specific IgE or conducting a medically supervised oral food challenge in patients, “based on the patient’s clinical history and the index of suspicion.”
The FDA also urges patients to discuss negative food allergen skin test results with their health care providers to determine the possible need for additional testing and to review the symptoms of a severe allergic reaction.
Any adverse events or side effects associated with allergenic products should be reported to the FDA via the FDA’s MedWatch Safety Information and Adverse Event Reporting Program.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has issued a warning about the potential for patients to experience anaphylactic reactions after a negative skin test with any allergenic extract used to diagnose food allergies.
The FDA is requiring that an anaphylaxis warning after false-negative food allergen skin test results be added to the labels of these products in light of reports to the FDA’s Adverse Event Reporting System (FAERS), according to a March 3 statement.
The action follows the recognition of an increase in adverse event reports of false-negative test results with specific lots of “ALK-Abello’s Allergenic Extract-Peanut (Arachis hypogaea) – For Diagnostic Use Only.” Some of these reports “were associated with life-threatening anaphylaxis from subsequent exposure to peanut,” according to the statement. “FDA determined that the risk of anaphylaxis following false-negative food allergen skin test results is applicable to all allergenic extracts for the diagnosis of food allergies,” the statement notes.
To date, four lots of allergenic extracts have been voluntarily withdrawn from the market by the manufacturer, in November and December 2022, and should not be used.
Although some allergenic extracts are standardized, those used in the diagnosis of food allergy currently licensed by the FDA for use in the United States are nonstandardized, so potency may vary by lot.
The FDA advises health care professionals to consider confirming a negative skin test with serologic testing for peanut-specific IgE or conducting a medically supervised oral food challenge in patients, “based on the patient’s clinical history and the index of suspicion.”
The FDA also urges patients to discuss negative food allergen skin test results with their health care providers to determine the possible need for additional testing and to review the symptoms of a severe allergic reaction.
Any adverse events or side effects associated with allergenic products should be reported to the FDA via the FDA’s MedWatch Safety Information and Adverse Event Reporting Program.
A version of this article first appeared on Medscape.com.
Yoga linked with improved gait speed, lower extremity strength in older adults
“Up to 50% of adults aged 80 years or older are estimated to be frail, and the global prevalence is expected to rise given the aging of our population,” therefore more interventions are needed to help with frailty, corresponding author Julia Loewenthal, MD, said in an interview.
Yoga integrates across multiple body systems including the musculoskeletal system, nervous system, and others, said Dr. Loewenthal of Brigham and Women’s Hospital, Boston. Previous research has shown that yoga has a positive effect on cardiovascular risk factors, mood, and quality of life, but the effects of yoga on frailty have not been well studied.
“We wanted to evaluate whether [yoga] might help with frailty, since it touches on so many systems, as frailty does,” she noted.
In a systematic review published in Annals of Internal Medicine, the researchers identified 33 randomized, controlled trials of yoga-based interventions including 2,384 adults aged 65 years and older. The studies mainly involved Iyengar or chair-based yoga methods. The study population included community-dwelling seniors, nursing home residents, and individuals with chronic diseases.
The studies assessed the effect of a range of yoga practices on frailty markers including gait speed, handgrip strength, balance, lower extremity strength and endurance, and multicomponent measures of physical performance.
Overall, individuals who were randomized to engage in a yoga practice showed improved gait speed and lower extremity strength, compared with controls who were inactive or received an education intervention, with moderate-certainty evidence. The researchers also found low-certainty evidence in favor of yoga for improved balance and for a composite measure of physical function, and low-certainty evidence in favor of yoga for improved handgrip strength.
The findings were limited by several factors, mainly the heterogenous study designs, populations, and yoga styles, the researchers noted. Other limitations included the small sample sizes, variation in descriptions of the studies’ randomizations, and a lack of data on race and ethnicity of the participants.
Yoga’s role in healthy aging
“Overall, we were not surprised by the results since we have seen similar findings from other mind-body practices such as tai chi,” Dr. Loewenthal said in an interview. “We were surprised by the degree of improvement many of the participants had with gait speed.
“Yoga practices usually include a mix of poses in the standing, seated, and lying-down positions,” Dr. Loewenthal said. Some of the studies in the review also involved chair-based methods with few standing poses, and some involved gentle or slow-paced practices. “We know that many of the practices helped with leg strength, and perhaps they are also helping with coordination between the brain and body for walking.”
The findings suggest that clinicians can view yoga practice in general as part of a strategy to support healthy aging, Dr. Loewenthal said. “While our work looked at frailty markers and not overall frailty, I think it would be reasonable to offer yoga as a strategy along with already-established interventions such as resistance training and the Mediterranean diet, and if older adults are already practicing yoga, this could help them understand how the practice is impacting the aging process.”
There are many styles of yoga that overlap and are related to one another, so it is hard to make recommendations about a single type, said Dr. Loewenthal. Many of the studies in the review involved Iyengar yoga, named for yoga master B.K.S. Iyengar, which focuses on precise alignment and breath and seems to be conducive for older populations. Iyengar yoga also involves use of props such as blocks, bolsters, straps, and chairs, which makes it well suited for older individuals who may have a chronic condition or other limitations.
“Some styles of yoga are very physical and may reach energy expenditure and cardiovascular effects similar to aerobic exercise, but this is generally not the case for most styles of yoga,” she added.
As for additional research, “I think it is important that trials use a validated definition of frailty as an outcome; all of the trials in our study used markers of frailty but did not look at overall frailty,” said Dr. Loewenthal. In addition, it is important to understand how yoga affects people who have different levels of frailty, since previous research shows that those who are the most frail benefit most from physical activity interventions.
Yoga as an entry point for physical activity
With the increasing population of older adults in the United States and around the world, frailty is a major health concern because its association with significant declines in health and potential loss of independence, Amanda Paluch, PhD, said in an interview.
“Therefore, it is important to identify programs that can prevent frailty to support longevity and living independently for older adults. Yoga can be a feasible solution to promote movement and prevent frailty,” said Dr. Paluch, of the University of Massachusetts, Amherst, an assistant professor in the department of kinesiology and Institute for Applied Life Sciences.
“Other studies have demonstrated that light-intensity movement, as in yoga, may be particularly beneficial for older adults,” Dr. Paluch said. “Additionally, research has demonstrated that balance training activities are important to maintain physical function, prevent falls, and maintain their independence for older adults, so it makes sense that yoga was associated with lower likelihood of frailty.”
Although there may be additional benefits with higher intensity activity, “yoga could be a great place to start for older adults who are starting at low activity levels,” she said.
The takeaway for clinicians is to consider encouraging more physical activity for their patients to support healthy aging, including reducing the risk factors for frailty, said Dr. Paluch. “Particularly for older adults, physical activity may not need to be of high intensity for benefits. Activities such as yoga that focus on flexibility, balance, and movement at lower intensities can support healthy aging, and yoga may be a particularly good option for older adults who are least active.”
The study received no outside funding. The researchers and Dr. Paluch had no financial conflicts to disclose.
“Up to 50% of adults aged 80 years or older are estimated to be frail, and the global prevalence is expected to rise given the aging of our population,” therefore more interventions are needed to help with frailty, corresponding author Julia Loewenthal, MD, said in an interview.
Yoga integrates across multiple body systems including the musculoskeletal system, nervous system, and others, said Dr. Loewenthal of Brigham and Women’s Hospital, Boston. Previous research has shown that yoga has a positive effect on cardiovascular risk factors, mood, and quality of life, but the effects of yoga on frailty have not been well studied.
“We wanted to evaluate whether [yoga] might help with frailty, since it touches on so many systems, as frailty does,” she noted.
In a systematic review published in Annals of Internal Medicine, the researchers identified 33 randomized, controlled trials of yoga-based interventions including 2,384 adults aged 65 years and older. The studies mainly involved Iyengar or chair-based yoga methods. The study population included community-dwelling seniors, nursing home residents, and individuals with chronic diseases.
The studies assessed the effect of a range of yoga practices on frailty markers including gait speed, handgrip strength, balance, lower extremity strength and endurance, and multicomponent measures of physical performance.
Overall, individuals who were randomized to engage in a yoga practice showed improved gait speed and lower extremity strength, compared with controls who were inactive or received an education intervention, with moderate-certainty evidence. The researchers also found low-certainty evidence in favor of yoga for improved balance and for a composite measure of physical function, and low-certainty evidence in favor of yoga for improved handgrip strength.
The findings were limited by several factors, mainly the heterogenous study designs, populations, and yoga styles, the researchers noted. Other limitations included the small sample sizes, variation in descriptions of the studies’ randomizations, and a lack of data on race and ethnicity of the participants.
Yoga’s role in healthy aging
“Overall, we were not surprised by the results since we have seen similar findings from other mind-body practices such as tai chi,” Dr. Loewenthal said in an interview. “We were surprised by the degree of improvement many of the participants had with gait speed.
“Yoga practices usually include a mix of poses in the standing, seated, and lying-down positions,” Dr. Loewenthal said. Some of the studies in the review also involved chair-based methods with few standing poses, and some involved gentle or slow-paced practices. “We know that many of the practices helped with leg strength, and perhaps they are also helping with coordination between the brain and body for walking.”
The findings suggest that clinicians can view yoga practice in general as part of a strategy to support healthy aging, Dr. Loewenthal said. “While our work looked at frailty markers and not overall frailty, I think it would be reasonable to offer yoga as a strategy along with already-established interventions such as resistance training and the Mediterranean diet, and if older adults are already practicing yoga, this could help them understand how the practice is impacting the aging process.”
There are many styles of yoga that overlap and are related to one another, so it is hard to make recommendations about a single type, said Dr. Loewenthal. Many of the studies in the review involved Iyengar yoga, named for yoga master B.K.S. Iyengar, which focuses on precise alignment and breath and seems to be conducive for older populations. Iyengar yoga also involves use of props such as blocks, bolsters, straps, and chairs, which makes it well suited for older individuals who may have a chronic condition or other limitations.
“Some styles of yoga are very physical and may reach energy expenditure and cardiovascular effects similar to aerobic exercise, but this is generally not the case for most styles of yoga,” she added.
As for additional research, “I think it is important that trials use a validated definition of frailty as an outcome; all of the trials in our study used markers of frailty but did not look at overall frailty,” said Dr. Loewenthal. In addition, it is important to understand how yoga affects people who have different levels of frailty, since previous research shows that those who are the most frail benefit most from physical activity interventions.
Yoga as an entry point for physical activity
With the increasing population of older adults in the United States and around the world, frailty is a major health concern because its association with significant declines in health and potential loss of independence, Amanda Paluch, PhD, said in an interview.
“Therefore, it is important to identify programs that can prevent frailty to support longevity and living independently for older adults. Yoga can be a feasible solution to promote movement and prevent frailty,” said Dr. Paluch, of the University of Massachusetts, Amherst, an assistant professor in the department of kinesiology and Institute for Applied Life Sciences.
“Other studies have demonstrated that light-intensity movement, as in yoga, may be particularly beneficial for older adults,” Dr. Paluch said. “Additionally, research has demonstrated that balance training activities are important to maintain physical function, prevent falls, and maintain their independence for older adults, so it makes sense that yoga was associated with lower likelihood of frailty.”
Although there may be additional benefits with higher intensity activity, “yoga could be a great place to start for older adults who are starting at low activity levels,” she said.
The takeaway for clinicians is to consider encouraging more physical activity for their patients to support healthy aging, including reducing the risk factors for frailty, said Dr. Paluch. “Particularly for older adults, physical activity may not need to be of high intensity for benefits. Activities such as yoga that focus on flexibility, balance, and movement at lower intensities can support healthy aging, and yoga may be a particularly good option for older adults who are least active.”
The study received no outside funding. The researchers and Dr. Paluch had no financial conflicts to disclose.
“Up to 50% of adults aged 80 years or older are estimated to be frail, and the global prevalence is expected to rise given the aging of our population,” therefore more interventions are needed to help with frailty, corresponding author Julia Loewenthal, MD, said in an interview.
Yoga integrates across multiple body systems including the musculoskeletal system, nervous system, and others, said Dr. Loewenthal of Brigham and Women’s Hospital, Boston. Previous research has shown that yoga has a positive effect on cardiovascular risk factors, mood, and quality of life, but the effects of yoga on frailty have not been well studied.
“We wanted to evaluate whether [yoga] might help with frailty, since it touches on so many systems, as frailty does,” she noted.
In a systematic review published in Annals of Internal Medicine, the researchers identified 33 randomized, controlled trials of yoga-based interventions including 2,384 adults aged 65 years and older. The studies mainly involved Iyengar or chair-based yoga methods. The study population included community-dwelling seniors, nursing home residents, and individuals with chronic diseases.
The studies assessed the effect of a range of yoga practices on frailty markers including gait speed, handgrip strength, balance, lower extremity strength and endurance, and multicomponent measures of physical performance.
Overall, individuals who were randomized to engage in a yoga practice showed improved gait speed and lower extremity strength, compared with controls who were inactive or received an education intervention, with moderate-certainty evidence. The researchers also found low-certainty evidence in favor of yoga for improved balance and for a composite measure of physical function, and low-certainty evidence in favor of yoga for improved handgrip strength.
The findings were limited by several factors, mainly the heterogenous study designs, populations, and yoga styles, the researchers noted. Other limitations included the small sample sizes, variation in descriptions of the studies’ randomizations, and a lack of data on race and ethnicity of the participants.
Yoga’s role in healthy aging
“Overall, we were not surprised by the results since we have seen similar findings from other mind-body practices such as tai chi,” Dr. Loewenthal said in an interview. “We were surprised by the degree of improvement many of the participants had with gait speed.
“Yoga practices usually include a mix of poses in the standing, seated, and lying-down positions,” Dr. Loewenthal said. Some of the studies in the review also involved chair-based methods with few standing poses, and some involved gentle or slow-paced practices. “We know that many of the practices helped with leg strength, and perhaps they are also helping with coordination between the brain and body for walking.”
The findings suggest that clinicians can view yoga practice in general as part of a strategy to support healthy aging, Dr. Loewenthal said. “While our work looked at frailty markers and not overall frailty, I think it would be reasonable to offer yoga as a strategy along with already-established interventions such as resistance training and the Mediterranean diet, and if older adults are already practicing yoga, this could help them understand how the practice is impacting the aging process.”
There are many styles of yoga that overlap and are related to one another, so it is hard to make recommendations about a single type, said Dr. Loewenthal. Many of the studies in the review involved Iyengar yoga, named for yoga master B.K.S. Iyengar, which focuses on precise alignment and breath and seems to be conducive for older populations. Iyengar yoga also involves use of props such as blocks, bolsters, straps, and chairs, which makes it well suited for older individuals who may have a chronic condition or other limitations.
“Some styles of yoga are very physical and may reach energy expenditure and cardiovascular effects similar to aerobic exercise, but this is generally not the case for most styles of yoga,” she added.
As for additional research, “I think it is important that trials use a validated definition of frailty as an outcome; all of the trials in our study used markers of frailty but did not look at overall frailty,” said Dr. Loewenthal. In addition, it is important to understand how yoga affects people who have different levels of frailty, since previous research shows that those who are the most frail benefit most from physical activity interventions.
Yoga as an entry point for physical activity
With the increasing population of older adults in the United States and around the world, frailty is a major health concern because its association with significant declines in health and potential loss of independence, Amanda Paluch, PhD, said in an interview.
“Therefore, it is important to identify programs that can prevent frailty to support longevity and living independently for older adults. Yoga can be a feasible solution to promote movement and prevent frailty,” said Dr. Paluch, of the University of Massachusetts, Amherst, an assistant professor in the department of kinesiology and Institute for Applied Life Sciences.
“Other studies have demonstrated that light-intensity movement, as in yoga, may be particularly beneficial for older adults,” Dr. Paluch said. “Additionally, research has demonstrated that balance training activities are important to maintain physical function, prevent falls, and maintain their independence for older adults, so it makes sense that yoga was associated with lower likelihood of frailty.”
Although there may be additional benefits with higher intensity activity, “yoga could be a great place to start for older adults who are starting at low activity levels,” she said.
The takeaway for clinicians is to consider encouraging more physical activity for their patients to support healthy aging, including reducing the risk factors for frailty, said Dr. Paluch. “Particularly for older adults, physical activity may not need to be of high intensity for benefits. Activities such as yoga that focus on flexibility, balance, and movement at lower intensities can support healthy aging, and yoga may be a particularly good option for older adults who are least active.”
The study received no outside funding. The researchers and Dr. Paluch had no financial conflicts to disclose.
FROM ANNALS OF INTERNAL MEDICINE
Buprenorphine proves effective for fentanyl users in the ED
based on data from nearly 900 individuals.
California EDs include a facilitation program known as CA Bridge for the treatment of opioid use disorder. Guidelines for CA Bridge call for high-dose buprenorphine to treat patients in drug withdrawal, with doses starting at 8-16 mg, Hannah Snyder, MD, of the University of California, San Francisco, and colleagues wrote.
“Buprenorphine has been repeatedly shown to save lives and prevent overdoses,” Dr. Snyder said in an interview. “We know that emergency department–initiated buprenorphine is an essential tool for increasing access. In the era of fentanyl, both patients and providers have expressed concerns that buprenorphine may not work as well as it did when patients were more likely to be using heroin or opioid pills.
“This retrospective cohort study provides additional information about emergency department buprenorphine as fentanyl becomes increasingly prevalent.”
In a research letter published in JAMA Network Open, the investigators reviewed data from the electronic health records of 896 patients who presented with opioid use disorder (OUD) at 16 CA Bridge EDs between Jan. 1, 2020, and April 30, 2020. All patients with OUD were included regardless of chief concern, current treatment, treatment desires, or withdrawal. A total of 87 individuals reported fentanyl use; if no fentanyl use was reported, the patient was classified as not using fentanyl. The median age of the patients was 35 years, two thirds were male, approximately 46% were White and non-Hispanic, and 30% had unstable housing.
The primary outcome was follow-up engagement at 7-14 days and 25-37 days.
A total of 492 patients received buprenorphine, including 44 fentanyl users, and 439 initiated high doses of 8-32 mg. At a 30-day follow-up, eight patients had precipitated withdrawal, including two cases in fentanyl users; none of these cases required hospital admission.
The follow-up engagement was similar for both groups, with adjusted odds ratios of 0.60 for administered buprenorphine at the initial ED encounter, 1.09 for 7-day follow-up, and 1.33 for 30-day follow-up.
The findings were limited by the retrospective design and use of clinical documentation, which likely resulted in underreporting of fentanyl use and follow-up, the researchers noted. However, the results supported the effectiveness of buprenorphine for ED patients in withdrawal with a history of fentanyl exposure.
“We were pleased to see that precipitated withdrawal was relatively uncommon in this study, and that patients who did and did not use fentanyl followed up at similar rates,” said Dr. Snyder. “This aligns with our clinical experience and prior research showing that emergency department buprenorphine starts continue to be an essential tool.”
The message for clinicians: “If a patient presents to the emergency department in objective opioid withdrawal and desires buprenorphine, they should be offered treatment in that moment,” Dr. Snyder said. “Treatment protocols used by hospitals in this study are available online. Emergency departments can offer compassionate and evidence-based treatment initiation 24 hours a day, 7 days a week, 365 days a year.”
More data needed on dosing strategies
“We need additional research to determine best practices for patients who use fentanyl and want to start buprenorphine, but are not yet in withdrawal,” Dr. Snyder said. “Doses of buprenorphine like those in this study are only appropriate for patients who are in withdrawal with objective signs, so some patients may struggle to wait long enough after their last use to go into sufficient withdrawal.”
Precipitated withdrawal does occur in some cases, said Dr. Snyder. “If it does, the emergency department is a very good place to manage it. We need additional research to determine best practices in management to make patients as comfortable as possible, including additional high-dose buprenorphine as well as additional adjunctive agents.”
Findings support buprenorphine
“The classic approach to buprenorphine initiation, which emerged from psychiatry outpatient office visits, is to start with very small doses of buprenorphine [2-4 mg] and titrate up slowly,” Reuben J. Strayer, MD, said in an interview.
“This dose range turns out to be the ‘sour spot’ most likely to cause the most important complication around buprenorphine initiation–precipitated withdrawal,” said Dr. Strayer, the director of addiction medicine in the emergency medicine department at Maimonides Medical Center, New York.
“One of the current focus areas of OUD treatment research is determining how to initiate buprenorphine without entailing a period of spontaneous withdrawal and without causing precipitated withdrawal,” Strayer explained. “The two primary strategies are low-dose buprenorphine initiation [LDBI, less than 2 mg, sometimes called microdosing] and high-dose [HDBI, ≥ 16 mg] buprenorphine initiation. HDBI is attractive because the primary treatment of buprenorphine-precipitated withdrawal is more buprenorphine.
“Additionally, using a high dose up front immediately transitions the patient to therapeutic blood levels, which protects the patient from withdrawal, cravings, and overdose from dangerous opioids (heroin, fentanyl, oxycodone).”
However, “the contamination and now replacement of heroin with fentanyl in the street drug supply has challenged buprenorphine initiation, because fentanyl, when used chronically, accumulates in the body and leaks into the bloodstream slowly over time, preventing the opioid washout that is required to eliminate the risk of precipitated withdrawal when buprenorphine is administered,” said Dr. Strayer.
The current study demonstrates that patients who are initiated with a first dose of 8-16 mg buprenorphine are unlikely to experience precipitated withdrawal and are successfully transitioned to buprenorphine maintenance and clinic follow-up, Dr. Snyder said, but he was surprised by the low rate of precipitated withdrawal in the current study, “which is discordant with what is being anecdotally reported across the country.”
However, the take-home message for clinicians is the support for the initiation of buprenorphine in emergency department settings at a starting dose of 8-16 mg, regardless of reported fentanyl use, he said. “Given the huge impact buprenorphine therapy has on OUD-related mortality, clinicians should make every effort to initiate buprenorphine for OUD patients at every opportunity, and precipitated withdrawal is very unlikely in appropriately selected patients.
“Many clinicians remain reluctant to initiate buprenorphine in ED settings for unfamiliarity with the drug, fear of precipitated withdrawal, or concerns around the certainty of outpatient follow-up,” Dr. Snyder said. “Education, encouragement, systems programming, such as including decision support within the electronic health record, and role-modeling from local champions will promote wider adoption of this lifesaving practice.”
Looking ahead, “more research, including prospective research, is needed to refine best practices around buprenorphine administration,” said Dr. Snyder. Questions to address include which patients are most at risk for precipitated withdrawal and whether there are alternatives to standard initiation dosing that are sufficiently unlikely to cause precipitated withdrawal. “Possibly effective alternatives include buprenorphine initiation by administration of long-acting injectable depot buprenorphine, which accumulates slowly, potentially avoiding precipitated withdrawal, as well as a slow intravenous buprenorphine infusion such as 9 mg given over 12 hours.”
The study received no outside funding. Dr. Snyder disclosed grants from the Substance Abuse and Mental Health Services Administration and the California Department of Health Care Services during the study. Dr. Strayer reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
based on data from nearly 900 individuals.
California EDs include a facilitation program known as CA Bridge for the treatment of opioid use disorder. Guidelines for CA Bridge call for high-dose buprenorphine to treat patients in drug withdrawal, with doses starting at 8-16 mg, Hannah Snyder, MD, of the University of California, San Francisco, and colleagues wrote.
“Buprenorphine has been repeatedly shown to save lives and prevent overdoses,” Dr. Snyder said in an interview. “We know that emergency department–initiated buprenorphine is an essential tool for increasing access. In the era of fentanyl, both patients and providers have expressed concerns that buprenorphine may not work as well as it did when patients were more likely to be using heroin or opioid pills.
“This retrospective cohort study provides additional information about emergency department buprenorphine as fentanyl becomes increasingly prevalent.”
In a research letter published in JAMA Network Open, the investigators reviewed data from the electronic health records of 896 patients who presented with opioid use disorder (OUD) at 16 CA Bridge EDs between Jan. 1, 2020, and April 30, 2020. All patients with OUD were included regardless of chief concern, current treatment, treatment desires, or withdrawal. A total of 87 individuals reported fentanyl use; if no fentanyl use was reported, the patient was classified as not using fentanyl. The median age of the patients was 35 years, two thirds were male, approximately 46% were White and non-Hispanic, and 30% had unstable housing.
The primary outcome was follow-up engagement at 7-14 days and 25-37 days.
A total of 492 patients received buprenorphine, including 44 fentanyl users, and 439 initiated high doses of 8-32 mg. At a 30-day follow-up, eight patients had precipitated withdrawal, including two cases in fentanyl users; none of these cases required hospital admission.
The follow-up engagement was similar for both groups, with adjusted odds ratios of 0.60 for administered buprenorphine at the initial ED encounter, 1.09 for 7-day follow-up, and 1.33 for 30-day follow-up.
The findings were limited by the retrospective design and use of clinical documentation, which likely resulted in underreporting of fentanyl use and follow-up, the researchers noted. However, the results supported the effectiveness of buprenorphine for ED patients in withdrawal with a history of fentanyl exposure.
“We were pleased to see that precipitated withdrawal was relatively uncommon in this study, and that patients who did and did not use fentanyl followed up at similar rates,” said Dr. Snyder. “This aligns with our clinical experience and prior research showing that emergency department buprenorphine starts continue to be an essential tool.”
The message for clinicians: “If a patient presents to the emergency department in objective opioid withdrawal and desires buprenorphine, they should be offered treatment in that moment,” Dr. Snyder said. “Treatment protocols used by hospitals in this study are available online. Emergency departments can offer compassionate and evidence-based treatment initiation 24 hours a day, 7 days a week, 365 days a year.”
More data needed on dosing strategies
“We need additional research to determine best practices for patients who use fentanyl and want to start buprenorphine, but are not yet in withdrawal,” Dr. Snyder said. “Doses of buprenorphine like those in this study are only appropriate for patients who are in withdrawal with objective signs, so some patients may struggle to wait long enough after their last use to go into sufficient withdrawal.”
Precipitated withdrawal does occur in some cases, said Dr. Snyder. “If it does, the emergency department is a very good place to manage it. We need additional research to determine best practices in management to make patients as comfortable as possible, including additional high-dose buprenorphine as well as additional adjunctive agents.”
Findings support buprenorphine
“The classic approach to buprenorphine initiation, which emerged from psychiatry outpatient office visits, is to start with very small doses of buprenorphine [2-4 mg] and titrate up slowly,” Reuben J. Strayer, MD, said in an interview.
“This dose range turns out to be the ‘sour spot’ most likely to cause the most important complication around buprenorphine initiation–precipitated withdrawal,” said Dr. Strayer, the director of addiction medicine in the emergency medicine department at Maimonides Medical Center, New York.
“One of the current focus areas of OUD treatment research is determining how to initiate buprenorphine without entailing a period of spontaneous withdrawal and without causing precipitated withdrawal,” Strayer explained. “The two primary strategies are low-dose buprenorphine initiation [LDBI, less than 2 mg, sometimes called microdosing] and high-dose [HDBI, ≥ 16 mg] buprenorphine initiation. HDBI is attractive because the primary treatment of buprenorphine-precipitated withdrawal is more buprenorphine.
“Additionally, using a high dose up front immediately transitions the patient to therapeutic blood levels, which protects the patient from withdrawal, cravings, and overdose from dangerous opioids (heroin, fentanyl, oxycodone).”
However, “the contamination and now replacement of heroin with fentanyl in the street drug supply has challenged buprenorphine initiation, because fentanyl, when used chronically, accumulates in the body and leaks into the bloodstream slowly over time, preventing the opioid washout that is required to eliminate the risk of precipitated withdrawal when buprenorphine is administered,” said Dr. Strayer.
The current study demonstrates that patients who are initiated with a first dose of 8-16 mg buprenorphine are unlikely to experience precipitated withdrawal and are successfully transitioned to buprenorphine maintenance and clinic follow-up, Dr. Snyder said, but he was surprised by the low rate of precipitated withdrawal in the current study, “which is discordant with what is being anecdotally reported across the country.”
However, the take-home message for clinicians is the support for the initiation of buprenorphine in emergency department settings at a starting dose of 8-16 mg, regardless of reported fentanyl use, he said. “Given the huge impact buprenorphine therapy has on OUD-related mortality, clinicians should make every effort to initiate buprenorphine for OUD patients at every opportunity, and precipitated withdrawal is very unlikely in appropriately selected patients.
“Many clinicians remain reluctant to initiate buprenorphine in ED settings for unfamiliarity with the drug, fear of precipitated withdrawal, or concerns around the certainty of outpatient follow-up,” Dr. Snyder said. “Education, encouragement, systems programming, such as including decision support within the electronic health record, and role-modeling from local champions will promote wider adoption of this lifesaving practice.”
Looking ahead, “more research, including prospective research, is needed to refine best practices around buprenorphine administration,” said Dr. Snyder. Questions to address include which patients are most at risk for precipitated withdrawal and whether there are alternatives to standard initiation dosing that are sufficiently unlikely to cause precipitated withdrawal. “Possibly effective alternatives include buprenorphine initiation by administration of long-acting injectable depot buprenorphine, which accumulates slowly, potentially avoiding precipitated withdrawal, as well as a slow intravenous buprenorphine infusion such as 9 mg given over 12 hours.”
The study received no outside funding. Dr. Snyder disclosed grants from the Substance Abuse and Mental Health Services Administration and the California Department of Health Care Services during the study. Dr. Strayer reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
based on data from nearly 900 individuals.
California EDs include a facilitation program known as CA Bridge for the treatment of opioid use disorder. Guidelines for CA Bridge call for high-dose buprenorphine to treat patients in drug withdrawal, with doses starting at 8-16 mg, Hannah Snyder, MD, of the University of California, San Francisco, and colleagues wrote.
“Buprenorphine has been repeatedly shown to save lives and prevent overdoses,” Dr. Snyder said in an interview. “We know that emergency department–initiated buprenorphine is an essential tool for increasing access. In the era of fentanyl, both patients and providers have expressed concerns that buprenorphine may not work as well as it did when patients were more likely to be using heroin or opioid pills.
“This retrospective cohort study provides additional information about emergency department buprenorphine as fentanyl becomes increasingly prevalent.”
In a research letter published in JAMA Network Open, the investigators reviewed data from the electronic health records of 896 patients who presented with opioid use disorder (OUD) at 16 CA Bridge EDs between Jan. 1, 2020, and April 30, 2020. All patients with OUD were included regardless of chief concern, current treatment, treatment desires, or withdrawal. A total of 87 individuals reported fentanyl use; if no fentanyl use was reported, the patient was classified as not using fentanyl. The median age of the patients was 35 years, two thirds were male, approximately 46% were White and non-Hispanic, and 30% had unstable housing.
The primary outcome was follow-up engagement at 7-14 days and 25-37 days.
A total of 492 patients received buprenorphine, including 44 fentanyl users, and 439 initiated high doses of 8-32 mg. At a 30-day follow-up, eight patients had precipitated withdrawal, including two cases in fentanyl users; none of these cases required hospital admission.
The follow-up engagement was similar for both groups, with adjusted odds ratios of 0.60 for administered buprenorphine at the initial ED encounter, 1.09 for 7-day follow-up, and 1.33 for 30-day follow-up.
The findings were limited by the retrospective design and use of clinical documentation, which likely resulted in underreporting of fentanyl use and follow-up, the researchers noted. However, the results supported the effectiveness of buprenorphine for ED patients in withdrawal with a history of fentanyl exposure.
“We were pleased to see that precipitated withdrawal was relatively uncommon in this study, and that patients who did and did not use fentanyl followed up at similar rates,” said Dr. Snyder. “This aligns with our clinical experience and prior research showing that emergency department buprenorphine starts continue to be an essential tool.”
The message for clinicians: “If a patient presents to the emergency department in objective opioid withdrawal and desires buprenorphine, they should be offered treatment in that moment,” Dr. Snyder said. “Treatment protocols used by hospitals in this study are available online. Emergency departments can offer compassionate and evidence-based treatment initiation 24 hours a day, 7 days a week, 365 days a year.”
More data needed on dosing strategies
“We need additional research to determine best practices for patients who use fentanyl and want to start buprenorphine, but are not yet in withdrawal,” Dr. Snyder said. “Doses of buprenorphine like those in this study are only appropriate for patients who are in withdrawal with objective signs, so some patients may struggle to wait long enough after their last use to go into sufficient withdrawal.”
Precipitated withdrawal does occur in some cases, said Dr. Snyder. “If it does, the emergency department is a very good place to manage it. We need additional research to determine best practices in management to make patients as comfortable as possible, including additional high-dose buprenorphine as well as additional adjunctive agents.”
Findings support buprenorphine
“The classic approach to buprenorphine initiation, which emerged from psychiatry outpatient office visits, is to start with very small doses of buprenorphine [2-4 mg] and titrate up slowly,” Reuben J. Strayer, MD, said in an interview.
“This dose range turns out to be the ‘sour spot’ most likely to cause the most important complication around buprenorphine initiation–precipitated withdrawal,” said Dr. Strayer, the director of addiction medicine in the emergency medicine department at Maimonides Medical Center, New York.
“One of the current focus areas of OUD treatment research is determining how to initiate buprenorphine without entailing a period of spontaneous withdrawal and without causing precipitated withdrawal,” Strayer explained. “The two primary strategies are low-dose buprenorphine initiation [LDBI, less than 2 mg, sometimes called microdosing] and high-dose [HDBI, ≥ 16 mg] buprenorphine initiation. HDBI is attractive because the primary treatment of buprenorphine-precipitated withdrawal is more buprenorphine.
“Additionally, using a high dose up front immediately transitions the patient to therapeutic blood levels, which protects the patient from withdrawal, cravings, and overdose from dangerous opioids (heroin, fentanyl, oxycodone).”
However, “the contamination and now replacement of heroin with fentanyl in the street drug supply has challenged buprenorphine initiation, because fentanyl, when used chronically, accumulates in the body and leaks into the bloodstream slowly over time, preventing the opioid washout that is required to eliminate the risk of precipitated withdrawal when buprenorphine is administered,” said Dr. Strayer.
The current study demonstrates that patients who are initiated with a first dose of 8-16 mg buprenorphine are unlikely to experience precipitated withdrawal and are successfully transitioned to buprenorphine maintenance and clinic follow-up, Dr. Snyder said, but he was surprised by the low rate of precipitated withdrawal in the current study, “which is discordant with what is being anecdotally reported across the country.”
However, the take-home message for clinicians is the support for the initiation of buprenorphine in emergency department settings at a starting dose of 8-16 mg, regardless of reported fentanyl use, he said. “Given the huge impact buprenorphine therapy has on OUD-related mortality, clinicians should make every effort to initiate buprenorphine for OUD patients at every opportunity, and precipitated withdrawal is very unlikely in appropriately selected patients.
“Many clinicians remain reluctant to initiate buprenorphine in ED settings for unfamiliarity with the drug, fear of precipitated withdrawal, or concerns around the certainty of outpatient follow-up,” Dr. Snyder said. “Education, encouragement, systems programming, such as including decision support within the electronic health record, and role-modeling from local champions will promote wider adoption of this lifesaving practice.”
Looking ahead, “more research, including prospective research, is needed to refine best practices around buprenorphine administration,” said Dr. Snyder. Questions to address include which patients are most at risk for precipitated withdrawal and whether there are alternatives to standard initiation dosing that are sufficiently unlikely to cause precipitated withdrawal. “Possibly effective alternatives include buprenorphine initiation by administration of long-acting injectable depot buprenorphine, which accumulates slowly, potentially avoiding precipitated withdrawal, as well as a slow intravenous buprenorphine infusion such as 9 mg given over 12 hours.”
The study received no outside funding. Dr. Snyder disclosed grants from the Substance Abuse and Mental Health Services Administration and the California Department of Health Care Services during the study. Dr. Strayer reported no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
FROM JAMA NETWORK OPEN
In utero exposure to asthma medication not tied to risks of neurodevelopmental disorders
The drugs included in the study were leukotriene-receptor antagonists (LTRAs), which are often used to treat allergic airway diseases, including asthma and allergic rhinitis.
“Over the years, the U.S. Food and Drug Administration has monitored post-marketing data about the potential harm of neuropsychiatric events (NEs) associated with montelukast, the first type of LTRAs, and issued boxed warnings about serious mental health side effects for montelukast in 2020,” said corresponding author Tsung-Chieh Yao, MD, of Chang Gung Memorial Hospital, Taiwan, in an interview.
However, evidence of a link between NEs and LTRA use has been inconsistent, according to Dr. Yao and colleagues.
“To date, it remains totally unknown whether the exposure to LTRAs during pregnancy is associated with the risk of neuropsychiatric events in offspring,” said Dr. Yao.
To address this question, the researchers used data from National Health Insurance Research Database in Taiwan to identify pregnant women and their offspring from 2009 to 2019. The initial study population included 576,157 mother-offspring pairs, including 1,995 LTRA-exposed and 574,162 nonexposed children.
The women had a diagnosis of asthma or allergic rhinitis; multiple births and children with congenital malformations were excluded. LTRA exposure was defined as any dispensed prescription for LTRAs during pregnancy. Approximately two-thirds of the mothers were aged 30-40 years at the time of delivery.
The findings were published in a research letter in JAMA Network Open.
In the study population at large, the incidence of the three neurodevelopmental disorders ADHD, autism spectrum disorder (ASD), and Tourette syndrome was not significantly different between those children exposed to LTRAs and those not exposed to LTRAs in utero (1.25% vs. 1.32%; 3.31% vs. 4.36%; and 0.45% vs. 0.83%, respectively).
After propensity score matching, the study population included 1,988 LTRA-exposed children and 19,863 nonexposed children. In this group, no significant associations appeared between prenatal LTRA exposure and the risk of attention-deficit/hyperactivity disorder (adjusted hazard ratio, 1.03), autism spectrum disorder (AHR, 1.01), and Tourette syndrome (AHR, 0.63).
Neither duration nor cumulative dose of LTRA use during pregnancy showed an association with ADHD, ASD, or Tourette syndrome in offspring. Duration of LTRA use was categorized as shorter or longer periods of 1-4 weeks vs. more than 4 weeks; cumulative dose was categorized as 1-170 mg vs. 170 mg or higher.
The findings were limited by the lack of randomization, inability to detect long-term risk, and potential lack of generalizability to non-Asian populations, and more research is needed to replicate the results, the researchers noted. However, the current findings were strengthened by the large study population, and suggest that LTRA use in pregnancy does not present a significant risk for NEs in children, which should be reassuring to clinicians and patients, they concluded.
The current study is the first to use the whole of Taiwan population data and extends previous studies by examining the association between LTRA use during pregnancy and risk of neuropsychiatric events in offspring, Dr. Yao said in an interview. “The possibly surprising, but reassuring, finding is that prenatal LTRA exposure did not increase risk of ADHD, ASD, and Tourette syndrome in offspring,” he said.
“Clinicians prescribing LTRAs such as montelukast (Singulair and generics) to pregnant women with asthma or allergic rhinitis may be reassured by our findings,” Dr. Yao added. The results offer real-world evidence to help inform decision-making about the use of LTRAs during pregnancy, although additional research is needed to replicate the study findings in other populations, he said.
The study was supported by the National Health Research Institutes, Taiwan, the Ministry of Science and Technology of Taiwan, the National Science and Technology Council of Taiwan, and the Chang Gung Medical Foundation. The researchers had no financial conflicts to disclose.
The drugs included in the study were leukotriene-receptor antagonists (LTRAs), which are often used to treat allergic airway diseases, including asthma and allergic rhinitis.
“Over the years, the U.S. Food and Drug Administration has monitored post-marketing data about the potential harm of neuropsychiatric events (NEs) associated with montelukast, the first type of LTRAs, and issued boxed warnings about serious mental health side effects for montelukast in 2020,” said corresponding author Tsung-Chieh Yao, MD, of Chang Gung Memorial Hospital, Taiwan, in an interview.
However, evidence of a link between NEs and LTRA use has been inconsistent, according to Dr. Yao and colleagues.
“To date, it remains totally unknown whether the exposure to LTRAs during pregnancy is associated with the risk of neuropsychiatric events in offspring,” said Dr. Yao.
To address this question, the researchers used data from National Health Insurance Research Database in Taiwan to identify pregnant women and their offspring from 2009 to 2019. The initial study population included 576,157 mother-offspring pairs, including 1,995 LTRA-exposed and 574,162 nonexposed children.
The women had a diagnosis of asthma or allergic rhinitis; multiple births and children with congenital malformations were excluded. LTRA exposure was defined as any dispensed prescription for LTRAs during pregnancy. Approximately two-thirds of the mothers were aged 30-40 years at the time of delivery.
The findings were published in a research letter in JAMA Network Open.
In the study population at large, the incidence of the three neurodevelopmental disorders ADHD, autism spectrum disorder (ASD), and Tourette syndrome was not significantly different between those children exposed to LTRAs and those not exposed to LTRAs in utero (1.25% vs. 1.32%; 3.31% vs. 4.36%; and 0.45% vs. 0.83%, respectively).
After propensity score matching, the study population included 1,988 LTRA-exposed children and 19,863 nonexposed children. In this group, no significant associations appeared between prenatal LTRA exposure and the risk of attention-deficit/hyperactivity disorder (adjusted hazard ratio, 1.03), autism spectrum disorder (AHR, 1.01), and Tourette syndrome (AHR, 0.63).
Neither duration nor cumulative dose of LTRA use during pregnancy showed an association with ADHD, ASD, or Tourette syndrome in offspring. Duration of LTRA use was categorized as shorter or longer periods of 1-4 weeks vs. more than 4 weeks; cumulative dose was categorized as 1-170 mg vs. 170 mg or higher.
The findings were limited by the lack of randomization, inability to detect long-term risk, and potential lack of generalizability to non-Asian populations, and more research is needed to replicate the results, the researchers noted. However, the current findings were strengthened by the large study population, and suggest that LTRA use in pregnancy does not present a significant risk for NEs in children, which should be reassuring to clinicians and patients, they concluded.
The current study is the first to use the whole of Taiwan population data and extends previous studies by examining the association between LTRA use during pregnancy and risk of neuropsychiatric events in offspring, Dr. Yao said in an interview. “The possibly surprising, but reassuring, finding is that prenatal LTRA exposure did not increase risk of ADHD, ASD, and Tourette syndrome in offspring,” he said.
“Clinicians prescribing LTRAs such as montelukast (Singulair and generics) to pregnant women with asthma or allergic rhinitis may be reassured by our findings,” Dr. Yao added. The results offer real-world evidence to help inform decision-making about the use of LTRAs during pregnancy, although additional research is needed to replicate the study findings in other populations, he said.
The study was supported by the National Health Research Institutes, Taiwan, the Ministry of Science and Technology of Taiwan, the National Science and Technology Council of Taiwan, and the Chang Gung Medical Foundation. The researchers had no financial conflicts to disclose.
The drugs included in the study were leukotriene-receptor antagonists (LTRAs), which are often used to treat allergic airway diseases, including asthma and allergic rhinitis.
“Over the years, the U.S. Food and Drug Administration has monitored post-marketing data about the potential harm of neuropsychiatric events (NEs) associated with montelukast, the first type of LTRAs, and issued boxed warnings about serious mental health side effects for montelukast in 2020,” said corresponding author Tsung-Chieh Yao, MD, of Chang Gung Memorial Hospital, Taiwan, in an interview.
However, evidence of a link between NEs and LTRA use has been inconsistent, according to Dr. Yao and colleagues.
“To date, it remains totally unknown whether the exposure to LTRAs during pregnancy is associated with the risk of neuropsychiatric events in offspring,” said Dr. Yao.
To address this question, the researchers used data from National Health Insurance Research Database in Taiwan to identify pregnant women and their offspring from 2009 to 2019. The initial study population included 576,157 mother-offspring pairs, including 1,995 LTRA-exposed and 574,162 nonexposed children.
The women had a diagnosis of asthma or allergic rhinitis; multiple births and children with congenital malformations were excluded. LTRA exposure was defined as any dispensed prescription for LTRAs during pregnancy. Approximately two-thirds of the mothers were aged 30-40 years at the time of delivery.
The findings were published in a research letter in JAMA Network Open.
In the study population at large, the incidence of the three neurodevelopmental disorders ADHD, autism spectrum disorder (ASD), and Tourette syndrome was not significantly different between those children exposed to LTRAs and those not exposed to LTRAs in utero (1.25% vs. 1.32%; 3.31% vs. 4.36%; and 0.45% vs. 0.83%, respectively).
After propensity score matching, the study population included 1,988 LTRA-exposed children and 19,863 nonexposed children. In this group, no significant associations appeared between prenatal LTRA exposure and the risk of attention-deficit/hyperactivity disorder (adjusted hazard ratio, 1.03), autism spectrum disorder (AHR, 1.01), and Tourette syndrome (AHR, 0.63).
Neither duration nor cumulative dose of LTRA use during pregnancy showed an association with ADHD, ASD, or Tourette syndrome in offspring. Duration of LTRA use was categorized as shorter or longer periods of 1-4 weeks vs. more than 4 weeks; cumulative dose was categorized as 1-170 mg vs. 170 mg or higher.
The findings were limited by the lack of randomization, inability to detect long-term risk, and potential lack of generalizability to non-Asian populations, and more research is needed to replicate the results, the researchers noted. However, the current findings were strengthened by the large study population, and suggest that LTRA use in pregnancy does not present a significant risk for NEs in children, which should be reassuring to clinicians and patients, they concluded.
The current study is the first to use the whole of Taiwan population data and extends previous studies by examining the association between LTRA use during pregnancy and risk of neuropsychiatric events in offspring, Dr. Yao said in an interview. “The possibly surprising, but reassuring, finding is that prenatal LTRA exposure did not increase risk of ADHD, ASD, and Tourette syndrome in offspring,” he said.
“Clinicians prescribing LTRAs such as montelukast (Singulair and generics) to pregnant women with asthma or allergic rhinitis may be reassured by our findings,” Dr. Yao added. The results offer real-world evidence to help inform decision-making about the use of LTRAs during pregnancy, although additional research is needed to replicate the study findings in other populations, he said.
The study was supported by the National Health Research Institutes, Taiwan, the Ministry of Science and Technology of Taiwan, the National Science and Technology Council of Taiwan, and the Chang Gung Medical Foundation. The researchers had no financial conflicts to disclose.
FROM JAMA NETWORK OPEN
Cognitive remediation training reduces aggression in schizophrenia
Aggressive behavior, including verbal or physical threats or violent acts, is at least four times more likely among individuals with schizophrenia, compared with the general population, wrote Anzalee Khan, PhD, of the Nathan S. Kline Institute for Psychiatric Research, Orangeburg, N.Y., and colleagues. Recent studies suggest that psychosocial treatments such as cognitive remediation training (CRT) or social cognition training (SCT) may be helpful, but the potential benefit of combining these strategies has not been explored, they said.
In a study published in Schizophrenia Research , the authors randomized 62 adults with a diagnosis of schizophrenia or schizoaffective disorder to 36 sessions of a combination treatment with cognitive remediation and social cognition; 68 were randomized to cognitive remediation and computer-based control treatment. Participants also had at least one confirmed assault in the past year, or scores of 5 or higher on the Life History of Aggression scale. Complete data were analyzed for 45 patients in the CRT/SRT group and 34 in the CRT control group.
The primary outcome was the measure of aggression using the Modified Overt Aggression Scale (OAS-M) in which higher scores indicate higher levels of aggression. Incidents of aggression were coded based on hospital staff reports and summarized weekly. The mean age of the participants was 34.9 years (ranging from 18 to 60 years), 85% were male, and the mean years of education was 11.5.
At the study’s end (14 weeks), participants in both groups showed significant reductions in measures of aggression from baseline, with the largest effect size for the total global OAS-M score (effect size 1.11 for CRT plus SCT and 0.73 for the CRT plus control group).
The results failed to confirm the hypothesis that the combination of CRT and SCT would significantly increase improvements in aggression compared with CRT alone, the researchers wrote in their discussion. Potential reasons include underdosed SCT intervention (only 12 sessions) and the nature of the SCT used in the study, which had few aggressive social interaction models and more models related to social engagement.
Although adding SCT did not have a significant impact on aggression, patients in the CRT plus SCT group showed greater improvement in cognitive function, emotion recognition, and mentalizing, compared with the controls without SCT, the researchers noted.
“While these findings are not surprising given that participants in the CRT plus SCT group received active social cognition training, they do support the idea that social cognition training may have contributed to further strengthen our effect on cognition,” they wrote.
The findings were limited by several factors including the study population of individuals with chronic schizophrenia and low levels of function in long-term tertiary care, which may limit generalizability, and the inability to control for the effects of pharmacotherapy, the researchers said.
However, the results were strengthened by the multidimensional assessments at both time points and the use of two cognitive and social cognition interventions, and suggest that adding social cognitive training enhanced the effect of CRT on cognitive function, emotion regulation, and mentalizing capacity, they said.
“Future studies are needed to examine the antiaggressive effects of a more intensive and more targeted social cognition intervention combined with CRT,” they concluded.
The study was supported by the Brain and Behavior Research Foundation and the Weill Cornell Clinical and Translational Science Award Program, National Institutes of Health/National Center for Advancing Translational Sciences. The researchers had no financial conflicts to disclose.
Aggressive behavior, including verbal or physical threats or violent acts, is at least four times more likely among individuals with schizophrenia, compared with the general population, wrote Anzalee Khan, PhD, of the Nathan S. Kline Institute for Psychiatric Research, Orangeburg, N.Y., and colleagues. Recent studies suggest that psychosocial treatments such as cognitive remediation training (CRT) or social cognition training (SCT) may be helpful, but the potential benefit of combining these strategies has not been explored, they said.
In a study published in Schizophrenia Research , the authors randomized 62 adults with a diagnosis of schizophrenia or schizoaffective disorder to 36 sessions of a combination treatment with cognitive remediation and social cognition; 68 were randomized to cognitive remediation and computer-based control treatment. Participants also had at least one confirmed assault in the past year, or scores of 5 or higher on the Life History of Aggression scale. Complete data were analyzed for 45 patients in the CRT/SRT group and 34 in the CRT control group.
The primary outcome was the measure of aggression using the Modified Overt Aggression Scale (OAS-M) in which higher scores indicate higher levels of aggression. Incidents of aggression were coded based on hospital staff reports and summarized weekly. The mean age of the participants was 34.9 years (ranging from 18 to 60 years), 85% were male, and the mean years of education was 11.5.
At the study’s end (14 weeks), participants in both groups showed significant reductions in measures of aggression from baseline, with the largest effect size for the total global OAS-M score (effect size 1.11 for CRT plus SCT and 0.73 for the CRT plus control group).
The results failed to confirm the hypothesis that the combination of CRT and SCT would significantly increase improvements in aggression compared with CRT alone, the researchers wrote in their discussion. Potential reasons include underdosed SCT intervention (only 12 sessions) and the nature of the SCT used in the study, which had few aggressive social interaction models and more models related to social engagement.
Although adding SCT did not have a significant impact on aggression, patients in the CRT plus SCT group showed greater improvement in cognitive function, emotion recognition, and mentalizing, compared with the controls without SCT, the researchers noted.
“While these findings are not surprising given that participants in the CRT plus SCT group received active social cognition training, they do support the idea that social cognition training may have contributed to further strengthen our effect on cognition,” they wrote.
The findings were limited by several factors including the study population of individuals with chronic schizophrenia and low levels of function in long-term tertiary care, which may limit generalizability, and the inability to control for the effects of pharmacotherapy, the researchers said.
However, the results were strengthened by the multidimensional assessments at both time points and the use of two cognitive and social cognition interventions, and suggest that adding social cognitive training enhanced the effect of CRT on cognitive function, emotion regulation, and mentalizing capacity, they said.
“Future studies are needed to examine the antiaggressive effects of a more intensive and more targeted social cognition intervention combined with CRT,” they concluded.
The study was supported by the Brain and Behavior Research Foundation and the Weill Cornell Clinical and Translational Science Award Program, National Institutes of Health/National Center for Advancing Translational Sciences. The researchers had no financial conflicts to disclose.
Aggressive behavior, including verbal or physical threats or violent acts, is at least four times more likely among individuals with schizophrenia, compared with the general population, wrote Anzalee Khan, PhD, of the Nathan S. Kline Institute for Psychiatric Research, Orangeburg, N.Y., and colleagues. Recent studies suggest that psychosocial treatments such as cognitive remediation training (CRT) or social cognition training (SCT) may be helpful, but the potential benefit of combining these strategies has not been explored, they said.
In a study published in Schizophrenia Research , the authors randomized 62 adults with a diagnosis of schizophrenia or schizoaffective disorder to 36 sessions of a combination treatment with cognitive remediation and social cognition; 68 were randomized to cognitive remediation and computer-based control treatment. Participants also had at least one confirmed assault in the past year, or scores of 5 or higher on the Life History of Aggression scale. Complete data were analyzed for 45 patients in the CRT/SRT group and 34 in the CRT control group.
The primary outcome was the measure of aggression using the Modified Overt Aggression Scale (OAS-M) in which higher scores indicate higher levels of aggression. Incidents of aggression were coded based on hospital staff reports and summarized weekly. The mean age of the participants was 34.9 years (ranging from 18 to 60 years), 85% were male, and the mean years of education was 11.5.
At the study’s end (14 weeks), participants in both groups showed significant reductions in measures of aggression from baseline, with the largest effect size for the total global OAS-M score (effect size 1.11 for CRT plus SCT and 0.73 for the CRT plus control group).
The results failed to confirm the hypothesis that the combination of CRT and SCT would significantly increase improvements in aggression compared with CRT alone, the researchers wrote in their discussion. Potential reasons include underdosed SCT intervention (only 12 sessions) and the nature of the SCT used in the study, which had few aggressive social interaction models and more models related to social engagement.
Although adding SCT did not have a significant impact on aggression, patients in the CRT plus SCT group showed greater improvement in cognitive function, emotion recognition, and mentalizing, compared with the controls without SCT, the researchers noted.
“While these findings are not surprising given that participants in the CRT plus SCT group received active social cognition training, they do support the idea that social cognition training may have contributed to further strengthen our effect on cognition,” they wrote.
The findings were limited by several factors including the study population of individuals with chronic schizophrenia and low levels of function in long-term tertiary care, which may limit generalizability, and the inability to control for the effects of pharmacotherapy, the researchers said.
However, the results were strengthened by the multidimensional assessments at both time points and the use of two cognitive and social cognition interventions, and suggest that adding social cognitive training enhanced the effect of CRT on cognitive function, emotion regulation, and mentalizing capacity, they said.
“Future studies are needed to examine the antiaggressive effects of a more intensive and more targeted social cognition intervention combined with CRT,” they concluded.
The study was supported by the Brain and Behavior Research Foundation and the Weill Cornell Clinical and Translational Science Award Program, National Institutes of Health/National Center for Advancing Translational Sciences. The researchers had no financial conflicts to disclose.
FROM SCHIZOPHRENIA RESEARCH