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LSD use triples among young adults with depression
TOPLINE:
The increase was especially high among young adults and those earning less than $75,000 a year.
METHODOLOGY:
- Investigators analyzed responses of 478,500 adult respondents to the NSDUH, a cross-sectional, in-person survey administered by the Substance Abuse and Mental Health Services Administration between 2008 and 2019.
- Respondents were questioned about past-month and past-year LSD use and past-year depression.
- Investigators conducted statistical analysis between December 2022 and June 2023.
TAKEAWAY:
- Past-year use of LSD increased significantly more among adults with major depression, increasing from 0.5% in 2008 to 1.8% in 2019 (prevalence difference, 1.3% [95% confidence interval, 1.0%-1.6%]) compared with adults without major depression.
- This difference was particularly pronounced among young adults with depression age 34 years or younger (PD for age 18-25 years, 3.3% [95% CI, 2.5%-4.2%]; PD for age 26-34 years, 2.7% [95% CI, 1.6%-3.8%]).
- The increase was also higher among those earning less than $75,000 per year (PD for < $20,000, 1.9% [95% CI, 1.3%-2.6%]; PD for $20,000-$49,999, 1.5% [95% CI, 1.0%-2.1%]; PD for $50,000-$74,999, 1.3% [95% CI, 0.7%-2.0%]).
- Use of other hallucinogen classes either decreased or increased only among select age groups or time frames; the use of LSD consistently increased among every observed age group from 2002 to 2019.
IN PRACTICE:
“Future research should aim to understand the motivations for LSD use as well as the directionality between nonmedical LSD use and depression. As the evaluation of LSD as a potential psychiatric treatment continues, public health efforts to promote safe and evidence-based use of psychedelics are critical,” the investigators write.
SOURCE:
The study was led by Deborah S. Hasin, PhD, of Columbia University’s department of psychiatry, New York, and published online in JAMA Psychiatry.
LIMITATIONS:
Study limitations include the use of self-reporting measures in the NSDUH and the lack of information about motives for or doses of LSD use.
DISCLOSURES:
The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
TOPLINE:
The increase was especially high among young adults and those earning less than $75,000 a year.
METHODOLOGY:
- Investigators analyzed responses of 478,500 adult respondents to the NSDUH, a cross-sectional, in-person survey administered by the Substance Abuse and Mental Health Services Administration between 2008 and 2019.
- Respondents were questioned about past-month and past-year LSD use and past-year depression.
- Investigators conducted statistical analysis between December 2022 and June 2023.
TAKEAWAY:
- Past-year use of LSD increased significantly more among adults with major depression, increasing from 0.5% in 2008 to 1.8% in 2019 (prevalence difference, 1.3% [95% confidence interval, 1.0%-1.6%]) compared with adults without major depression.
- This difference was particularly pronounced among young adults with depression age 34 years or younger (PD for age 18-25 years, 3.3% [95% CI, 2.5%-4.2%]; PD for age 26-34 years, 2.7% [95% CI, 1.6%-3.8%]).
- The increase was also higher among those earning less than $75,000 per year (PD for < $20,000, 1.9% [95% CI, 1.3%-2.6%]; PD for $20,000-$49,999, 1.5% [95% CI, 1.0%-2.1%]; PD for $50,000-$74,999, 1.3% [95% CI, 0.7%-2.0%]).
- Use of other hallucinogen classes either decreased or increased only among select age groups or time frames; the use of LSD consistently increased among every observed age group from 2002 to 2019.
IN PRACTICE:
“Future research should aim to understand the motivations for LSD use as well as the directionality between nonmedical LSD use and depression. As the evaluation of LSD as a potential psychiatric treatment continues, public health efforts to promote safe and evidence-based use of psychedelics are critical,” the investigators write.
SOURCE:
The study was led by Deborah S. Hasin, PhD, of Columbia University’s department of psychiatry, New York, and published online in JAMA Psychiatry.
LIMITATIONS:
Study limitations include the use of self-reporting measures in the NSDUH and the lack of information about motives for or doses of LSD use.
DISCLOSURES:
The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
TOPLINE:
The increase was especially high among young adults and those earning less than $75,000 a year.
METHODOLOGY:
- Investigators analyzed responses of 478,500 adult respondents to the NSDUH, a cross-sectional, in-person survey administered by the Substance Abuse and Mental Health Services Administration between 2008 and 2019.
- Respondents were questioned about past-month and past-year LSD use and past-year depression.
- Investigators conducted statistical analysis between December 2022 and June 2023.
TAKEAWAY:
- Past-year use of LSD increased significantly more among adults with major depression, increasing from 0.5% in 2008 to 1.8% in 2019 (prevalence difference, 1.3% [95% confidence interval, 1.0%-1.6%]) compared with adults without major depression.
- This difference was particularly pronounced among young adults with depression age 34 years or younger (PD for age 18-25 years, 3.3% [95% CI, 2.5%-4.2%]; PD for age 26-34 years, 2.7% [95% CI, 1.6%-3.8%]).
- The increase was also higher among those earning less than $75,000 per year (PD for < $20,000, 1.9% [95% CI, 1.3%-2.6%]; PD for $20,000-$49,999, 1.5% [95% CI, 1.0%-2.1%]; PD for $50,000-$74,999, 1.3% [95% CI, 0.7%-2.0%]).
- Use of other hallucinogen classes either decreased or increased only among select age groups or time frames; the use of LSD consistently increased among every observed age group from 2002 to 2019.
IN PRACTICE:
“Future research should aim to understand the motivations for LSD use as well as the directionality between nonmedical LSD use and depression. As the evaluation of LSD as a potential psychiatric treatment continues, public health efforts to promote safe and evidence-based use of psychedelics are critical,” the investigators write.
SOURCE:
The study was led by Deborah S. Hasin, PhD, of Columbia University’s department of psychiatry, New York, and published online in JAMA Psychiatry.
LIMITATIONS:
Study limitations include the use of self-reporting measures in the NSDUH and the lack of information about motives for or doses of LSD use.
DISCLOSURES:
The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM JAMA PSYCHIATRY
Substance-induced psychosis tied to schizophrenia risk
TOPLINE:
Three years after an initial ER visit, 18.5% of those with substance-induced psychosis were diagnosed with an SSD. Cannabis-induced psychosis was associated with the greatest risk.
METHODOLOGY:
- In this retrospective, population-based cohort study, investigators evaluated the risk of transition to a diagnosis of SSD for individuals with an ER visit for substance use versus the general population.
- Investigators at The Ottawa Hospital and the Institute for Clinical Evaluative Sciences, both in Ontario, analyzed data from six linked databases containing health information on nearly 10 million Ontario residents aged 14-65 years eligible for medical coverage.
- Investigators collected the health data between January 2008 and March 2022 on residents with substance use–related ER visits with, and without, psychosis.
TAKEAWAY:
- There were nearly 408,000 individuals with an ER visit for substance use, of which 13,800 (3.4%) of the visits were for substance-induced psychosis.
- Individuals with substance-induced psychosis were at a 163-fold (age- and sex-adjusted hazard ratio, 163.2; 95% confidence interval, 156.1-170.5) increased risk of transitioning to an SSD, relative to the general population (3-year risk, 18.5% vs. 0.1%).
- Individuals with an ER visit for substance use without psychosis had a lower relative risk of transitioning (aHR, 9.8; 95% CI, 9.5-10.2; 3-year risk, 1.4%) but incurred more than three times the absolute number of transitions (9,969 vs. 3,029).
- ER visits related to cannabis use had the highest transition risk among visits with psychosis (aHR, 241.6; 95% CI, 225.5-258.9) and the third-highest risk among visits without psychosis (aHR, 14.3; 95% CI, 13.5-15.2).
- Younger age and male sex were associated with a higher risk of transition, and the risk of male sex was greater in younger, compared with older, individuals particularly for cannabis use.
IN PRACTICE:
“Primary prevention efforts aimed at reducing substance use and substance use disorders could substantially reduce the population-level burden of chronic psychoses,” the investigators write. “Our findings also highlight the need for targeted secondary prevention providing early intervention and reducing substance use in the highest-risk groups, which may delay or prevent transition to schizophrenia spectrum disorders.”
SOURCE:
Daniel T. Myran, MD, MPH, of the Ottawa Hospital Research Institute, led the study, which was funded by the Canadian Institutes of Health Research and the University of Ottawa department of family medicine. The study was published online in JAMA Psychiatry.
LIMITATIONS:
Investigators did not have access to detailed data on substance-related outpatient visits or patterns of substance use, which could provide additional prognostic information.
DISCLOSURES:
Dr. Myran reported receiving grants from the Canadian Institutes of Health Research during the conduct of the study. Dr. Solmi reported receiving honoraria for participation on advisory boards or presentations from AbbVie, Angelini, Lundbeck, and Otsuka outside the submitted work. The remaining authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
TOPLINE:
Three years after an initial ER visit, 18.5% of those with substance-induced psychosis were diagnosed with an SSD. Cannabis-induced psychosis was associated with the greatest risk.
METHODOLOGY:
- In this retrospective, population-based cohort study, investigators evaluated the risk of transition to a diagnosis of SSD for individuals with an ER visit for substance use versus the general population.
- Investigators at The Ottawa Hospital and the Institute for Clinical Evaluative Sciences, both in Ontario, analyzed data from six linked databases containing health information on nearly 10 million Ontario residents aged 14-65 years eligible for medical coverage.
- Investigators collected the health data between January 2008 and March 2022 on residents with substance use–related ER visits with, and without, psychosis.
TAKEAWAY:
- There were nearly 408,000 individuals with an ER visit for substance use, of which 13,800 (3.4%) of the visits were for substance-induced psychosis.
- Individuals with substance-induced psychosis were at a 163-fold (age- and sex-adjusted hazard ratio, 163.2; 95% confidence interval, 156.1-170.5) increased risk of transitioning to an SSD, relative to the general population (3-year risk, 18.5% vs. 0.1%).
- Individuals with an ER visit for substance use without psychosis had a lower relative risk of transitioning (aHR, 9.8; 95% CI, 9.5-10.2; 3-year risk, 1.4%) but incurred more than three times the absolute number of transitions (9,969 vs. 3,029).
- ER visits related to cannabis use had the highest transition risk among visits with psychosis (aHR, 241.6; 95% CI, 225.5-258.9) and the third-highest risk among visits without psychosis (aHR, 14.3; 95% CI, 13.5-15.2).
- Younger age and male sex were associated with a higher risk of transition, and the risk of male sex was greater in younger, compared with older, individuals particularly for cannabis use.
IN PRACTICE:
“Primary prevention efforts aimed at reducing substance use and substance use disorders could substantially reduce the population-level burden of chronic psychoses,” the investigators write. “Our findings also highlight the need for targeted secondary prevention providing early intervention and reducing substance use in the highest-risk groups, which may delay or prevent transition to schizophrenia spectrum disorders.”
SOURCE:
Daniel T. Myran, MD, MPH, of the Ottawa Hospital Research Institute, led the study, which was funded by the Canadian Institutes of Health Research and the University of Ottawa department of family medicine. The study was published online in JAMA Psychiatry.
LIMITATIONS:
Investigators did not have access to detailed data on substance-related outpatient visits or patterns of substance use, which could provide additional prognostic information.
DISCLOSURES:
Dr. Myran reported receiving grants from the Canadian Institutes of Health Research during the conduct of the study. Dr. Solmi reported receiving honoraria for participation on advisory boards or presentations from AbbVie, Angelini, Lundbeck, and Otsuka outside the submitted work. The remaining authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
TOPLINE:
Three years after an initial ER visit, 18.5% of those with substance-induced psychosis were diagnosed with an SSD. Cannabis-induced psychosis was associated with the greatest risk.
METHODOLOGY:
- In this retrospective, population-based cohort study, investigators evaluated the risk of transition to a diagnosis of SSD for individuals with an ER visit for substance use versus the general population.
- Investigators at The Ottawa Hospital and the Institute for Clinical Evaluative Sciences, both in Ontario, analyzed data from six linked databases containing health information on nearly 10 million Ontario residents aged 14-65 years eligible for medical coverage.
- Investigators collected the health data between January 2008 and March 2022 on residents with substance use–related ER visits with, and without, psychosis.
TAKEAWAY:
- There were nearly 408,000 individuals with an ER visit for substance use, of which 13,800 (3.4%) of the visits were for substance-induced psychosis.
- Individuals with substance-induced psychosis were at a 163-fold (age- and sex-adjusted hazard ratio, 163.2; 95% confidence interval, 156.1-170.5) increased risk of transitioning to an SSD, relative to the general population (3-year risk, 18.5% vs. 0.1%).
- Individuals with an ER visit for substance use without psychosis had a lower relative risk of transitioning (aHR, 9.8; 95% CI, 9.5-10.2; 3-year risk, 1.4%) but incurred more than three times the absolute number of transitions (9,969 vs. 3,029).
- ER visits related to cannabis use had the highest transition risk among visits with psychosis (aHR, 241.6; 95% CI, 225.5-258.9) and the third-highest risk among visits without psychosis (aHR, 14.3; 95% CI, 13.5-15.2).
- Younger age and male sex were associated with a higher risk of transition, and the risk of male sex was greater in younger, compared with older, individuals particularly for cannabis use.
IN PRACTICE:
“Primary prevention efforts aimed at reducing substance use and substance use disorders could substantially reduce the population-level burden of chronic psychoses,” the investigators write. “Our findings also highlight the need for targeted secondary prevention providing early intervention and reducing substance use in the highest-risk groups, which may delay or prevent transition to schizophrenia spectrum disorders.”
SOURCE:
Daniel T. Myran, MD, MPH, of the Ottawa Hospital Research Institute, led the study, which was funded by the Canadian Institutes of Health Research and the University of Ottawa department of family medicine. The study was published online in JAMA Psychiatry.
LIMITATIONS:
Investigators did not have access to detailed data on substance-related outpatient visits or patterns of substance use, which could provide additional prognostic information.
DISCLOSURES:
Dr. Myran reported receiving grants from the Canadian Institutes of Health Research during the conduct of the study. Dr. Solmi reported receiving honoraria for participation on advisory boards or presentations from AbbVie, Angelini, Lundbeck, and Otsuka outside the submitted work. The remaining authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM JAMA PSYCHIATRY
In utero SSRI exposure tied to lower brain volume in kids
However, the investigators, led by Henning Tiemeier, MD, PhD, professor of social and behavioral sciences at Harvard School of Public Health in Boston, note that the findings should be interpreted cautiously because the size of the study population who received brain MRI was relatively small.
Dr. Tiemeier said in an interview that the associations detected were small and could not show causality between prenatal SSRI use and a decrease in gray and white matter across certain areas of the brain.
“Women who are pregnant and on maintenance therapy should consult their therapist if preventive therapy is still needed and if there are alternatives. This choice must be carefully considered, and women should be carefully advised,” he said.
The study was published online in JAMA Psychiatry.
An important decision
The investigators note that the decision to prescribe antidepressants, particularly SSRIs, during pregnancy is challenging. Though SSRI use during pregnancy is generally considered safe, some previous research suggests an association with negative outcomes in offspring, including adverse effects on neurodevelopment.
However, the researchers also note that it’s possible that pregnant women who use SSRIs may have other factors, including more severe depressive symptoms, which may be independently associated with adverse outcomes in offspring.
To investigate the link between intrauterine SSRI exposure and brain development, the researchers conducted a prospective, population-based study that included 3,198 pregnant individuals with an expected delivery date between April 2002 and January 2006. Study participants were divided into five groups: 41 who used SSRIs during pregnancy, 257 who did not use the medications but had depressive symptoms during pregnancy, 77 who used SSRIs prenatally, 74 who developed depressive symptoms after giving birth, and 2,749 controls with no SSRI use or depressive symptoms. Participants had a mean age of 31 years, and all identified as women.
Of those who took SSRIs during pregnancy, 20 used them during the first trimester only, and 21 used them the first or in one or two additional trimesters. The SSRIs used included paroxetine, fluoxetine, sertraline, fluvoxamine, and citalopram.
Offspring of the women enrolled in the study received MRIs at three different times between the ages 7 and 15 years.
The 41 children born to the women who took SSRIs prenatally had 80 scans in total, the 257 with mothers who did not use SSRIs yet had depressive symptoms while pregnant had 477 MRIs, the 77 children born to the mothers who took SSRIs before pregnancy had 126 MRIs, the 74 born to mothers with postnatal depression only had 128 MRIs, and the 2,749 children born to the mothers with no SSRI use or depression had 4,813 MRIs.
The study’s primary outcome was brain morphometry in offspring including global and cortical brain volumes, measured by three MRI assessments from ages 7 to 15 years.
Reduced brain volume
Compared with children with no in utero SSRI exposure, those who were exposed had reduced gray and white matter volume that persisted up to 15 years of age (P = .006), particularly in the corticolimbic circuit.
Investigators observed a “persistent association between prenatal SSRI exposure and less cortical volumes across the 10-year follow-up period, including in the superior frontal cortex, medial orbitofrontal cortex, parahippocampal gyrus, rostral anterior cingulate cortex, and posterior cingulate.”
Investigators noted that prenatal SSRI exposure was consistently associated with 5%-10% lower brain volume in the frontal, cingulate, and temporal cortex throughout the age range studied.
In a couple of areas of the brain, however, the brain volume gradually increased back to levels seen in non-SSRI exposed children. For instance, smaller amygdala volumes had increased by age 15 years, so children who were exposed to SSRIs were not any different from control children.
Among the group of women with postnatal depression using an SSRI before or during pregnancy who had depressive symptoms post natally, neonates had a reduced fusiform gyrus (P = .002)
Dr. Tiemeier could not speculate on the effects of the volume differences on children’s development, although the parts of the brain found to be reduced are primarily responsible for emotion regulation.
Investigators noted there was limited ability to investigate trimester-specific outcomes of SSRI use and assess associations with specific SSRIs due to low prevalence of SSRI use.
In addition, research on the long-term behavioral and psychological outcomes associated with demonstrated brain changes is needed, investigators noted.
Clinical significance ‘unclear’
In an accompanying editorial, Ardesheer Talati, PhD, Columbia University, New York, noted that though the research enhances understanding of how brain development through adolescence may be associated with SSRI exposure, “the clinical significance was unclear, especially as key limbic regions, including the amygdala, normalized over time.”
If future evidence links brain anomalies to adverse youth outcomes, Dr. Talati writes, this will need to be “calibrated into the risk-benefit profile.” Until then, he said, the findings must not be overinterpreted “to either promote or discourage antidepressant medication use during the critical period of pregnancy.”
The study was funded by the Netherlands Organization for Scientific Research, European Union’s Horizon Research and Innovation Program, the Netherlands Organization for Health Research and Development, the Sophia Foundation for Neuroimaging, and the European Union’s Horizon Research and Innovation 5 Program. Dr. Talati reported receiving grants from the National Institutes of Health outside of the submitted work.
A version of this article first appeared on Medscape.com.
However, the investigators, led by Henning Tiemeier, MD, PhD, professor of social and behavioral sciences at Harvard School of Public Health in Boston, note that the findings should be interpreted cautiously because the size of the study population who received brain MRI was relatively small.
Dr. Tiemeier said in an interview that the associations detected were small and could not show causality between prenatal SSRI use and a decrease in gray and white matter across certain areas of the brain.
“Women who are pregnant and on maintenance therapy should consult their therapist if preventive therapy is still needed and if there are alternatives. This choice must be carefully considered, and women should be carefully advised,” he said.
The study was published online in JAMA Psychiatry.
An important decision
The investigators note that the decision to prescribe antidepressants, particularly SSRIs, during pregnancy is challenging. Though SSRI use during pregnancy is generally considered safe, some previous research suggests an association with negative outcomes in offspring, including adverse effects on neurodevelopment.
However, the researchers also note that it’s possible that pregnant women who use SSRIs may have other factors, including more severe depressive symptoms, which may be independently associated with adverse outcomes in offspring.
To investigate the link between intrauterine SSRI exposure and brain development, the researchers conducted a prospective, population-based study that included 3,198 pregnant individuals with an expected delivery date between April 2002 and January 2006. Study participants were divided into five groups: 41 who used SSRIs during pregnancy, 257 who did not use the medications but had depressive symptoms during pregnancy, 77 who used SSRIs prenatally, 74 who developed depressive symptoms after giving birth, and 2,749 controls with no SSRI use or depressive symptoms. Participants had a mean age of 31 years, and all identified as women.
Of those who took SSRIs during pregnancy, 20 used them during the first trimester only, and 21 used them the first or in one or two additional trimesters. The SSRIs used included paroxetine, fluoxetine, sertraline, fluvoxamine, and citalopram.
Offspring of the women enrolled in the study received MRIs at three different times between the ages 7 and 15 years.
The 41 children born to the women who took SSRIs prenatally had 80 scans in total, the 257 with mothers who did not use SSRIs yet had depressive symptoms while pregnant had 477 MRIs, the 77 children born to the mothers who took SSRIs before pregnancy had 126 MRIs, the 74 born to mothers with postnatal depression only had 128 MRIs, and the 2,749 children born to the mothers with no SSRI use or depression had 4,813 MRIs.
The study’s primary outcome was brain morphometry in offspring including global and cortical brain volumes, measured by three MRI assessments from ages 7 to 15 years.
Reduced brain volume
Compared with children with no in utero SSRI exposure, those who were exposed had reduced gray and white matter volume that persisted up to 15 years of age (P = .006), particularly in the corticolimbic circuit.
Investigators observed a “persistent association between prenatal SSRI exposure and less cortical volumes across the 10-year follow-up period, including in the superior frontal cortex, medial orbitofrontal cortex, parahippocampal gyrus, rostral anterior cingulate cortex, and posterior cingulate.”
Investigators noted that prenatal SSRI exposure was consistently associated with 5%-10% lower brain volume in the frontal, cingulate, and temporal cortex throughout the age range studied.
In a couple of areas of the brain, however, the brain volume gradually increased back to levels seen in non-SSRI exposed children. For instance, smaller amygdala volumes had increased by age 15 years, so children who were exposed to SSRIs were not any different from control children.
Among the group of women with postnatal depression using an SSRI before or during pregnancy who had depressive symptoms post natally, neonates had a reduced fusiform gyrus (P = .002)
Dr. Tiemeier could not speculate on the effects of the volume differences on children’s development, although the parts of the brain found to be reduced are primarily responsible for emotion regulation.
Investigators noted there was limited ability to investigate trimester-specific outcomes of SSRI use and assess associations with specific SSRIs due to low prevalence of SSRI use.
In addition, research on the long-term behavioral and psychological outcomes associated with demonstrated brain changes is needed, investigators noted.
Clinical significance ‘unclear’
In an accompanying editorial, Ardesheer Talati, PhD, Columbia University, New York, noted that though the research enhances understanding of how brain development through adolescence may be associated with SSRI exposure, “the clinical significance was unclear, especially as key limbic regions, including the amygdala, normalized over time.”
If future evidence links brain anomalies to adverse youth outcomes, Dr. Talati writes, this will need to be “calibrated into the risk-benefit profile.” Until then, he said, the findings must not be overinterpreted “to either promote or discourage antidepressant medication use during the critical period of pregnancy.”
The study was funded by the Netherlands Organization for Scientific Research, European Union’s Horizon Research and Innovation Program, the Netherlands Organization for Health Research and Development, the Sophia Foundation for Neuroimaging, and the European Union’s Horizon Research and Innovation 5 Program. Dr. Talati reported receiving grants from the National Institutes of Health outside of the submitted work.
A version of this article first appeared on Medscape.com.
However, the investigators, led by Henning Tiemeier, MD, PhD, professor of social and behavioral sciences at Harvard School of Public Health in Boston, note that the findings should be interpreted cautiously because the size of the study population who received brain MRI was relatively small.
Dr. Tiemeier said in an interview that the associations detected were small and could not show causality between prenatal SSRI use and a decrease in gray and white matter across certain areas of the brain.
“Women who are pregnant and on maintenance therapy should consult their therapist if preventive therapy is still needed and if there are alternatives. This choice must be carefully considered, and women should be carefully advised,” he said.
The study was published online in JAMA Psychiatry.
An important decision
The investigators note that the decision to prescribe antidepressants, particularly SSRIs, during pregnancy is challenging. Though SSRI use during pregnancy is generally considered safe, some previous research suggests an association with negative outcomes in offspring, including adverse effects on neurodevelopment.
However, the researchers also note that it’s possible that pregnant women who use SSRIs may have other factors, including more severe depressive symptoms, which may be independently associated with adverse outcomes in offspring.
To investigate the link between intrauterine SSRI exposure and brain development, the researchers conducted a prospective, population-based study that included 3,198 pregnant individuals with an expected delivery date between April 2002 and January 2006. Study participants were divided into five groups: 41 who used SSRIs during pregnancy, 257 who did not use the medications but had depressive symptoms during pregnancy, 77 who used SSRIs prenatally, 74 who developed depressive symptoms after giving birth, and 2,749 controls with no SSRI use or depressive symptoms. Participants had a mean age of 31 years, and all identified as women.
Of those who took SSRIs during pregnancy, 20 used them during the first trimester only, and 21 used them the first or in one or two additional trimesters. The SSRIs used included paroxetine, fluoxetine, sertraline, fluvoxamine, and citalopram.
Offspring of the women enrolled in the study received MRIs at three different times between the ages 7 and 15 years.
The 41 children born to the women who took SSRIs prenatally had 80 scans in total, the 257 with mothers who did not use SSRIs yet had depressive symptoms while pregnant had 477 MRIs, the 77 children born to the mothers who took SSRIs before pregnancy had 126 MRIs, the 74 born to mothers with postnatal depression only had 128 MRIs, and the 2,749 children born to the mothers with no SSRI use or depression had 4,813 MRIs.
The study’s primary outcome was brain morphometry in offspring including global and cortical brain volumes, measured by three MRI assessments from ages 7 to 15 years.
Reduced brain volume
Compared with children with no in utero SSRI exposure, those who were exposed had reduced gray and white matter volume that persisted up to 15 years of age (P = .006), particularly in the corticolimbic circuit.
Investigators observed a “persistent association between prenatal SSRI exposure and less cortical volumes across the 10-year follow-up period, including in the superior frontal cortex, medial orbitofrontal cortex, parahippocampal gyrus, rostral anterior cingulate cortex, and posterior cingulate.”
Investigators noted that prenatal SSRI exposure was consistently associated with 5%-10% lower brain volume in the frontal, cingulate, and temporal cortex throughout the age range studied.
In a couple of areas of the brain, however, the brain volume gradually increased back to levels seen in non-SSRI exposed children. For instance, smaller amygdala volumes had increased by age 15 years, so children who were exposed to SSRIs were not any different from control children.
Among the group of women with postnatal depression using an SSRI before or during pregnancy who had depressive symptoms post natally, neonates had a reduced fusiform gyrus (P = .002)
Dr. Tiemeier could not speculate on the effects of the volume differences on children’s development, although the parts of the brain found to be reduced are primarily responsible for emotion regulation.
Investigators noted there was limited ability to investigate trimester-specific outcomes of SSRI use and assess associations with specific SSRIs due to low prevalence of SSRI use.
In addition, research on the long-term behavioral and psychological outcomes associated with demonstrated brain changes is needed, investigators noted.
Clinical significance ‘unclear’
In an accompanying editorial, Ardesheer Talati, PhD, Columbia University, New York, noted that though the research enhances understanding of how brain development through adolescence may be associated with SSRI exposure, “the clinical significance was unclear, especially as key limbic regions, including the amygdala, normalized over time.”
If future evidence links brain anomalies to adverse youth outcomes, Dr. Talati writes, this will need to be “calibrated into the risk-benefit profile.” Until then, he said, the findings must not be overinterpreted “to either promote or discourage antidepressant medication use during the critical period of pregnancy.”
The study was funded by the Netherlands Organization for Scientific Research, European Union’s Horizon Research and Innovation Program, the Netherlands Organization for Health Research and Development, the Sophia Foundation for Neuroimaging, and the European Union’s Horizon Research and Innovation 5 Program. Dr. Talati reported receiving grants from the National Institutes of Health outside of the submitted work.
A version of this article first appeared on Medscape.com.
FROM JAMA PSYCHIATRY
Service dogs help veterans with PTSD lead better lives
When Ryan (not his real name), 37, returned home from two deployments with the 101st Airborne Division in Iraq from 2005 to 2008, he began withdrawing from social situations and experienced chronic anxiety. Nights brought no respite – his sleep was interrupted by punishing nightmares.
“I had every calling card of a veteran in distress,” he said in an interview. When his wife told him she thought he may have posttraumatic stress disorder (PTSD), he shrugged it off. “I wasn’t automatically going to accept [the diagnosis] because as an infantry veteran, we’re big tough guys. We don’t need help with anything.”
The dogs, mostly recruited from rescue organizations, receive 5-7 months of specialized training to assist the veterans.
Life-changing help
While Ryan was skeptical about the program and whether it would work for him, he agreed to try it. After working with Bullet, a cream-colored golden retriever, he realized his life was improving.
“I stopped self-medicating, started advocating for myself, and became more comfortable socializing in public.” In his 3 years with Bullet, Ryan was able to work on his marriage, advance his career, and become a homeowner.
“The dreams I never thought were attainable started coming to fruition, and I was happy and comfortable for the first time in as long as I could remember.”
Unfortunately, Bullet died from a rare heart condition after a few years, and when that happened, NWBB immediately began working with Ryan to find him a new dog to fill the void left by Bullet.
Soon, Ryan began working with Twitch, who, like Bullet, knew when Ryan was becoming anxious, angry, or depressed before he did, he said.
“These dogs pick up on PTSD symptoms and come over and press themselves against you, push their faces into yours, and give you those big puppy dog eyes as if to say, ‘I got you. Everything is going to be okay.’ ”
The same thing happened when Ryan had night terrors and nightmares. “These dogs wake you up, and again, you’re greeted with this sweet puppy dog face.”
NWBB founder and CEO Shannon Walker, who has been training dogs for 25 years and whose father served in the U.S. Air Force in the 1950s, leads a 5-week training course for the veterans and their “battle buddies” so that the veterans can learn how to bond with and benefit from their new service dogs.
Finding the perfect match
Veterans are paired with trained service dogs based on their lifestyle and personality. For instance, a Vietnam veteran who is having trouble walking may be paired with a calm dog while a younger veteran who runs each morning is paired with a more active dog.
NWBB operates on funds from private donors and nonprofit organizations that make it financially feasible for the veterans to travel to Washington State and stay for the time required to train with their service dogs.
“Our service dogs are there in the midnight hour when no one else is,” she said. “Our veterans are fighting internal battles that no one else sees but the dogs. The dogs alert on their adrenaline and bring them back to the moment of now, interrupting suicidal ideations, panic attacks, and night terrors.”
Joshua Morganstein, MD, chair of the American Psychiatric Association’s Committee on the Psychiatric Dimensions of Disaster, said in an interview that “PTSD can be devastating for service members and veterans and is often associated with comorbid mental health conditions, such as anxiety and substance use.”
He noted that for many people, dogs and other animals can be an important source of physical, emotional, and psychological comfort.
“Programs like the Northwest Battle Buddies are important for us to study and better understand the extent to which trained animals are able to help alleviate the symptoms of PTSD and associated disorders and, perhaps most importantly, enhance the ability of service members and veterans to function and live in ways that feel healthy and productive to them,” said Dr. Morganstein.
He added that the concept of a “battle buddy” is a term pioneered by the U.S. Army in 2002 and describes a “formal, rather than ad hoc, system of peer support in which service members are assigned buddies.
“Buddies look out for each other, encourage self-care and self-advocacy and, when needed, help their buddy to seek help. Buddies remind us that someone is looking out for us and there is someone we look out for as well, both of which are protective during difficult times,” he said.
A version of this article first appeared on Medscape.com.
When Ryan (not his real name), 37, returned home from two deployments with the 101st Airborne Division in Iraq from 2005 to 2008, he began withdrawing from social situations and experienced chronic anxiety. Nights brought no respite – his sleep was interrupted by punishing nightmares.
“I had every calling card of a veteran in distress,” he said in an interview. When his wife told him she thought he may have posttraumatic stress disorder (PTSD), he shrugged it off. “I wasn’t automatically going to accept [the diagnosis] because as an infantry veteran, we’re big tough guys. We don’t need help with anything.”
The dogs, mostly recruited from rescue organizations, receive 5-7 months of specialized training to assist the veterans.
Life-changing help
While Ryan was skeptical about the program and whether it would work for him, he agreed to try it. After working with Bullet, a cream-colored golden retriever, he realized his life was improving.
“I stopped self-medicating, started advocating for myself, and became more comfortable socializing in public.” In his 3 years with Bullet, Ryan was able to work on his marriage, advance his career, and become a homeowner.
“The dreams I never thought were attainable started coming to fruition, and I was happy and comfortable for the first time in as long as I could remember.”
Unfortunately, Bullet died from a rare heart condition after a few years, and when that happened, NWBB immediately began working with Ryan to find him a new dog to fill the void left by Bullet.
Soon, Ryan began working with Twitch, who, like Bullet, knew when Ryan was becoming anxious, angry, or depressed before he did, he said.
“These dogs pick up on PTSD symptoms and come over and press themselves against you, push their faces into yours, and give you those big puppy dog eyes as if to say, ‘I got you. Everything is going to be okay.’ ”
The same thing happened when Ryan had night terrors and nightmares. “These dogs wake you up, and again, you’re greeted with this sweet puppy dog face.”
NWBB founder and CEO Shannon Walker, who has been training dogs for 25 years and whose father served in the U.S. Air Force in the 1950s, leads a 5-week training course for the veterans and their “battle buddies” so that the veterans can learn how to bond with and benefit from their new service dogs.
Finding the perfect match
Veterans are paired with trained service dogs based on their lifestyle and personality. For instance, a Vietnam veteran who is having trouble walking may be paired with a calm dog while a younger veteran who runs each morning is paired with a more active dog.
NWBB operates on funds from private donors and nonprofit organizations that make it financially feasible for the veterans to travel to Washington State and stay for the time required to train with their service dogs.
“Our service dogs are there in the midnight hour when no one else is,” she said. “Our veterans are fighting internal battles that no one else sees but the dogs. The dogs alert on their adrenaline and bring them back to the moment of now, interrupting suicidal ideations, panic attacks, and night terrors.”
Joshua Morganstein, MD, chair of the American Psychiatric Association’s Committee on the Psychiatric Dimensions of Disaster, said in an interview that “PTSD can be devastating for service members and veterans and is often associated with comorbid mental health conditions, such as anxiety and substance use.”
He noted that for many people, dogs and other animals can be an important source of physical, emotional, and psychological comfort.
“Programs like the Northwest Battle Buddies are important for us to study and better understand the extent to which trained animals are able to help alleviate the symptoms of PTSD and associated disorders and, perhaps most importantly, enhance the ability of service members and veterans to function and live in ways that feel healthy and productive to them,” said Dr. Morganstein.
He added that the concept of a “battle buddy” is a term pioneered by the U.S. Army in 2002 and describes a “formal, rather than ad hoc, system of peer support in which service members are assigned buddies.
“Buddies look out for each other, encourage self-care and self-advocacy and, when needed, help their buddy to seek help. Buddies remind us that someone is looking out for us and there is someone we look out for as well, both of which are protective during difficult times,” he said.
A version of this article first appeared on Medscape.com.
When Ryan (not his real name), 37, returned home from two deployments with the 101st Airborne Division in Iraq from 2005 to 2008, he began withdrawing from social situations and experienced chronic anxiety. Nights brought no respite – his sleep was interrupted by punishing nightmares.
“I had every calling card of a veteran in distress,” he said in an interview. When his wife told him she thought he may have posttraumatic stress disorder (PTSD), he shrugged it off. “I wasn’t automatically going to accept [the diagnosis] because as an infantry veteran, we’re big tough guys. We don’t need help with anything.”
The dogs, mostly recruited from rescue organizations, receive 5-7 months of specialized training to assist the veterans.
Life-changing help
While Ryan was skeptical about the program and whether it would work for him, he agreed to try it. After working with Bullet, a cream-colored golden retriever, he realized his life was improving.
“I stopped self-medicating, started advocating for myself, and became more comfortable socializing in public.” In his 3 years with Bullet, Ryan was able to work on his marriage, advance his career, and become a homeowner.
“The dreams I never thought were attainable started coming to fruition, and I was happy and comfortable for the first time in as long as I could remember.”
Unfortunately, Bullet died from a rare heart condition after a few years, and when that happened, NWBB immediately began working with Ryan to find him a new dog to fill the void left by Bullet.
Soon, Ryan began working with Twitch, who, like Bullet, knew when Ryan was becoming anxious, angry, or depressed before he did, he said.
“These dogs pick up on PTSD symptoms and come over and press themselves against you, push their faces into yours, and give you those big puppy dog eyes as if to say, ‘I got you. Everything is going to be okay.’ ”
The same thing happened when Ryan had night terrors and nightmares. “These dogs wake you up, and again, you’re greeted with this sweet puppy dog face.”
NWBB founder and CEO Shannon Walker, who has been training dogs for 25 years and whose father served in the U.S. Air Force in the 1950s, leads a 5-week training course for the veterans and their “battle buddies” so that the veterans can learn how to bond with and benefit from their new service dogs.
Finding the perfect match
Veterans are paired with trained service dogs based on their lifestyle and personality. For instance, a Vietnam veteran who is having trouble walking may be paired with a calm dog while a younger veteran who runs each morning is paired with a more active dog.
NWBB operates on funds from private donors and nonprofit organizations that make it financially feasible for the veterans to travel to Washington State and stay for the time required to train with their service dogs.
“Our service dogs are there in the midnight hour when no one else is,” she said. “Our veterans are fighting internal battles that no one else sees but the dogs. The dogs alert on their adrenaline and bring them back to the moment of now, interrupting suicidal ideations, panic attacks, and night terrors.”
Joshua Morganstein, MD, chair of the American Psychiatric Association’s Committee on the Psychiatric Dimensions of Disaster, said in an interview that “PTSD can be devastating for service members and veterans and is often associated with comorbid mental health conditions, such as anxiety and substance use.”
He noted that for many people, dogs and other animals can be an important source of physical, emotional, and psychological comfort.
“Programs like the Northwest Battle Buddies are important for us to study and better understand the extent to which trained animals are able to help alleviate the symptoms of PTSD and associated disorders and, perhaps most importantly, enhance the ability of service members and veterans to function and live in ways that feel healthy and productive to them,” said Dr. Morganstein.
He added that the concept of a “battle buddy” is a term pioneered by the U.S. Army in 2002 and describes a “formal, rather than ad hoc, system of peer support in which service members are assigned buddies.
“Buddies look out for each other, encourage self-care and self-advocacy and, when needed, help their buddy to seek help. Buddies remind us that someone is looking out for us and there is someone we look out for as well, both of which are protective during difficult times,” he said.
A version of this article first appeared on Medscape.com.
PTSD: Written exposure therapy matches prolonged exposure therapy
Investigators also found that participants randomly assigned to receive WET were significantly less likely to drop out of treatment than those receiving PE.
Written exposure therapy involves writing about thoughts and feelings during a specific traumatic event during five supervised, 30-minute sessions and discussing the writing process with the therapist supervising the sessions.
In the latter sessions, the participant talks about how the event affected them.
“Clinicians should consider using WET in their practices as some clients would prefer a shorter treatment approach, and it may be the only option for some clients – for instance, those who have limited time for therapy and may not be able to do a longer treatment,” study investigator Denise Sloan, PhD, said in an interview.
She also noted that WET is covered by insurance and that “most providers I know indicate that they list it as CBT [cognitive-behavioral therapy] code to insurance companies.”
Sloan is senior clinician investigator of the National Center for PTSD at VA Boston Healthcare System and professor of psychiatry at Boston University.
The findings were published online in JAMA Psychiatry.
High attrition rates
The disadvantage to the three major types of therapy used most often to treat PTSD in veterans – eye movement desensitization and reprocessing, cognitive processing therapy (CPT), and PE – are the dropout rates, that range from 18% to as high as 50%.
Prior studies have shown that WET is briefer and just as effective as CPT, but investigators noted that it had never been tested against PE in a randomized clinical trial.
To find out how the two types of therapy compare, Dr. Sloan and associates randomized 178 veterans with PTSD from three VA centers – Boston; Charleston, S.C.; and Madison, Wisc. – to receive either WET or PE.
PE consisted of 8-15 90-minute therapy sessions during which participants imagine the most distressing aspect of their traumatic memory, and between sessions, they confront the people, places, or situations they have been avoiding because of the trauma.
The investigators used the Structured Clinical Interview for DSM-5 at baseline to screen participants at high risk for suicide, comorbid substance use disorder, and unstable bipolar disorder, who were excluded from the study.
At baseline, 10, 20, and 30 weeks after the first treatment session, the investigators measured the severity of each patient’s PTSD symptoms with the Clinician-Administered PTSD Scale for DSM-5, which has a range of 0 (no PTSD symptoms) to 80 (most severe PTSD symptoms).
Of the 178 veterans, 134 were men, and their mean age was 45 years. The majority (63%) was White, while 21% were Black.
The researchers found that study participants were not significantly more likely to meet PTSD diagnostic criteria in the WET or PE conditions at any assessment.
WET briefer, better retention
Investigators noted the largest difference in PTSD scores in favor of WET at the 10-month assessment: The mean score for those receiving WET was 27.7, and the mean score for those receiving PE was 30.1 (odds ratio, 0.72; 95% CI, 0.35-1.46).
Among those who finished treatment, the mean number of treatment sessions was 12.5 for PE and 6 for WET.
Participants assigned to receive PE were significantly more likely to drop out of the study prematurely; 32 (35.6%) dropped out, compared with 11 (12.5%) participants assigned to WET.
Notably, of the 32 participants who dropped out of PE, 30 did so by session 7, so the increased dropout in PE was not related to the greater number of sessions, the investigators noted.
They added that findings could have been limited by stressors related to the global COVID-19 pandemic, which was taking place during the treatment, and the fact that all of the participants were veterans, which could limit the generalizability of the findings.
In an editorial, Charles Taylor, PhD, and Murray Stein, MD, MPH, both from the department of psychiatry at the University of California, San Diego, wrote that “WET achieved comparable reductions in PTSD symptoms through fewer sessions, shorter duration sessions, less therapist involvement, and no explicit prescription of homework.
“These findings should galvanize the psychotherapy field to design parsimonious treatments from the start, systematically testing the effects of different dose parameters,” they concluded.
The study was supported by the VA. Dr. Sloan reported receiving royalty payments for the published Written Exposure Therapy manual from the American Psychological Association outside the submitted work.
A version of this article appeared on Medscape.com.
Investigators also found that participants randomly assigned to receive WET were significantly less likely to drop out of treatment than those receiving PE.
Written exposure therapy involves writing about thoughts and feelings during a specific traumatic event during five supervised, 30-minute sessions and discussing the writing process with the therapist supervising the sessions.
In the latter sessions, the participant talks about how the event affected them.
“Clinicians should consider using WET in their practices as some clients would prefer a shorter treatment approach, and it may be the only option for some clients – for instance, those who have limited time for therapy and may not be able to do a longer treatment,” study investigator Denise Sloan, PhD, said in an interview.
She also noted that WET is covered by insurance and that “most providers I know indicate that they list it as CBT [cognitive-behavioral therapy] code to insurance companies.”
Sloan is senior clinician investigator of the National Center for PTSD at VA Boston Healthcare System and professor of psychiatry at Boston University.
The findings were published online in JAMA Psychiatry.
High attrition rates
The disadvantage to the three major types of therapy used most often to treat PTSD in veterans – eye movement desensitization and reprocessing, cognitive processing therapy (CPT), and PE – are the dropout rates, that range from 18% to as high as 50%.
Prior studies have shown that WET is briefer and just as effective as CPT, but investigators noted that it had never been tested against PE in a randomized clinical trial.
To find out how the two types of therapy compare, Dr. Sloan and associates randomized 178 veterans with PTSD from three VA centers – Boston; Charleston, S.C.; and Madison, Wisc. – to receive either WET or PE.
PE consisted of 8-15 90-minute therapy sessions during which participants imagine the most distressing aspect of their traumatic memory, and between sessions, they confront the people, places, or situations they have been avoiding because of the trauma.
The investigators used the Structured Clinical Interview for DSM-5 at baseline to screen participants at high risk for suicide, comorbid substance use disorder, and unstable bipolar disorder, who were excluded from the study.
At baseline, 10, 20, and 30 weeks after the first treatment session, the investigators measured the severity of each patient’s PTSD symptoms with the Clinician-Administered PTSD Scale for DSM-5, which has a range of 0 (no PTSD symptoms) to 80 (most severe PTSD symptoms).
Of the 178 veterans, 134 were men, and their mean age was 45 years. The majority (63%) was White, while 21% were Black.
The researchers found that study participants were not significantly more likely to meet PTSD diagnostic criteria in the WET or PE conditions at any assessment.
WET briefer, better retention
Investigators noted the largest difference in PTSD scores in favor of WET at the 10-month assessment: The mean score for those receiving WET was 27.7, and the mean score for those receiving PE was 30.1 (odds ratio, 0.72; 95% CI, 0.35-1.46).
Among those who finished treatment, the mean number of treatment sessions was 12.5 for PE and 6 for WET.
Participants assigned to receive PE were significantly more likely to drop out of the study prematurely; 32 (35.6%) dropped out, compared with 11 (12.5%) participants assigned to WET.
Notably, of the 32 participants who dropped out of PE, 30 did so by session 7, so the increased dropout in PE was not related to the greater number of sessions, the investigators noted.
They added that findings could have been limited by stressors related to the global COVID-19 pandemic, which was taking place during the treatment, and the fact that all of the participants were veterans, which could limit the generalizability of the findings.
In an editorial, Charles Taylor, PhD, and Murray Stein, MD, MPH, both from the department of psychiatry at the University of California, San Diego, wrote that “WET achieved comparable reductions in PTSD symptoms through fewer sessions, shorter duration sessions, less therapist involvement, and no explicit prescription of homework.
“These findings should galvanize the psychotherapy field to design parsimonious treatments from the start, systematically testing the effects of different dose parameters,” they concluded.
The study was supported by the VA. Dr. Sloan reported receiving royalty payments for the published Written Exposure Therapy manual from the American Psychological Association outside the submitted work.
A version of this article appeared on Medscape.com.
Investigators also found that participants randomly assigned to receive WET were significantly less likely to drop out of treatment than those receiving PE.
Written exposure therapy involves writing about thoughts and feelings during a specific traumatic event during five supervised, 30-minute sessions and discussing the writing process with the therapist supervising the sessions.
In the latter sessions, the participant talks about how the event affected them.
“Clinicians should consider using WET in their practices as some clients would prefer a shorter treatment approach, and it may be the only option for some clients – for instance, those who have limited time for therapy and may not be able to do a longer treatment,” study investigator Denise Sloan, PhD, said in an interview.
She also noted that WET is covered by insurance and that “most providers I know indicate that they list it as CBT [cognitive-behavioral therapy] code to insurance companies.”
Sloan is senior clinician investigator of the National Center for PTSD at VA Boston Healthcare System and professor of psychiatry at Boston University.
The findings were published online in JAMA Psychiatry.
High attrition rates
The disadvantage to the three major types of therapy used most often to treat PTSD in veterans – eye movement desensitization and reprocessing, cognitive processing therapy (CPT), and PE – are the dropout rates, that range from 18% to as high as 50%.
Prior studies have shown that WET is briefer and just as effective as CPT, but investigators noted that it had never been tested against PE in a randomized clinical trial.
To find out how the two types of therapy compare, Dr. Sloan and associates randomized 178 veterans with PTSD from three VA centers – Boston; Charleston, S.C.; and Madison, Wisc. – to receive either WET or PE.
PE consisted of 8-15 90-minute therapy sessions during which participants imagine the most distressing aspect of their traumatic memory, and between sessions, they confront the people, places, or situations they have been avoiding because of the trauma.
The investigators used the Structured Clinical Interview for DSM-5 at baseline to screen participants at high risk for suicide, comorbid substance use disorder, and unstable bipolar disorder, who were excluded from the study.
At baseline, 10, 20, and 30 weeks after the first treatment session, the investigators measured the severity of each patient’s PTSD symptoms with the Clinician-Administered PTSD Scale for DSM-5, which has a range of 0 (no PTSD symptoms) to 80 (most severe PTSD symptoms).
Of the 178 veterans, 134 were men, and their mean age was 45 years. The majority (63%) was White, while 21% were Black.
The researchers found that study participants were not significantly more likely to meet PTSD diagnostic criteria in the WET or PE conditions at any assessment.
WET briefer, better retention
Investigators noted the largest difference in PTSD scores in favor of WET at the 10-month assessment: The mean score for those receiving WET was 27.7, and the mean score for those receiving PE was 30.1 (odds ratio, 0.72; 95% CI, 0.35-1.46).
Among those who finished treatment, the mean number of treatment sessions was 12.5 for PE and 6 for WET.
Participants assigned to receive PE were significantly more likely to drop out of the study prematurely; 32 (35.6%) dropped out, compared with 11 (12.5%) participants assigned to WET.
Notably, of the 32 participants who dropped out of PE, 30 did so by session 7, so the increased dropout in PE was not related to the greater number of sessions, the investigators noted.
They added that findings could have been limited by stressors related to the global COVID-19 pandemic, which was taking place during the treatment, and the fact that all of the participants were veterans, which could limit the generalizability of the findings.
In an editorial, Charles Taylor, PhD, and Murray Stein, MD, MPH, both from the department of psychiatry at the University of California, San Diego, wrote that “WET achieved comparable reductions in PTSD symptoms through fewer sessions, shorter duration sessions, less therapist involvement, and no explicit prescription of homework.
“These findings should galvanize the psychotherapy field to design parsimonious treatments from the start, systematically testing the effects of different dose parameters,” they concluded.
The study was supported by the VA. Dr. Sloan reported receiving royalty payments for the published Written Exposure Therapy manual from the American Psychological Association outside the submitted work.
A version of this article appeared on Medscape.com.
FROM JAMA PSYCHIATRY
Child assault tied to triple the risk for mental illness within 1 year
The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
The greatest risk was found in the first year following the assault, increasing to three times the risk of being diagnosed with mental illness, compared with children not assaulted. Mood and anxiety disorders were the most common diagnoses.
“From a clinical and policy perspective, our study highlights that there is a critical opportunity for health care clinicians to support children in the first year following physical assault,” Natasha Saunders, MD, MSc, of the Hospital for Sick Children, Toronto, and colleagues wrote. “There is a need to develop and implement targeted mental illness prevention, screening, and treatment programs for assaulted children.”
The findings were published online in JAMA Network Open.
While it has been well established that children exposed to assault have an increased risk for subsequent mental illness, Dr. Saunders and coinvestigators noted that using an age-matched, population-based cohort study would enable them to obtain detailed information on the patterns and timing of subsequent psychiatric diagnoses.
To that end, the researchers used several medical databases in Ontario to find 5,487 children (infants to age 13 years) who required an ED visit or hospitalization for a physical assault in Ontario between 2006 and 2014.
These children were matched on a 1:4 basis with 21,948 children not exposed to physical assault. The children were followed until their 18th birthday or until the study ended in March 2019.
The researchers found that more than a third of the children (39%) who were exposed to assault received a mental health diagnosis, according to health records, compared with 23% of unexposed children.
Mood and anxiety disorders were the most common diagnoses among children exposed to assault (16.2% vs. 10.6%, respectively); followed by select childhood behavior disorders, such as ADHD, oppositional defiant disorder, or conduct disorder (9.9% vs. 5.2%); and substance use disorders (2.4% vs. 0.4%).
Triple risk of mental illness in first year
The researchers found that the children exposed to assault were nearly twice as likely to be diagnosed with a mental illness over a median follow-up of 7 years, compared with those not exposed to assault (adjusted hazard ratio, 1.96; 95% confidence interval, 1.85,2.08).
In the year following the assault, children exposed to assault bore three times the risk of being diagnosed with a mental illness, compared with unexposed children (aHR, 3.08; 95% CI, 2.68,3.54).
In addition, the children who had been assaulted were more likely to be diagnosed in an acute care setting than those who were not assaulted (14% vs. 2.8%).
The children who had been assaulted were an average age of 7 years and were more often boys (55% vs. 45%). Children who were assaulted were also more likely to have mothers with mental illness (35% vs. 19%).
The investigators noted that the study likely underestimated the number of children exposed to assault, as many do not end up in the ED.
In addition to highlighting the need for medical personnel to support children in the first year following assault, the investigators wrote that “our results also advocate for accessible mental health care outside of the acute setting and for care that addresses the social and health needs of mothers, who themselves have high social and health risks.”
This study received funding from the National Foundation to End Child Abuse and Neglect and the Ontario Ministry of Health and the Ministry of Long-Term Care. Dr. Saunders reported receiving personal fees from The BMJ Group, Archives of Diseases in Childhood outside the submitted work.
A version of this article first appeared on Medscape.com.
FROM JAMA NETWORK OPEN
Bipolar disorder tied to a sixfold increased risk of early death
In addition, patients with BD are three times more likely to die prematurely of all causes, compared with the general population, with alcohol-related diseases contributing to more premature deaths than cardiovascular disease (CVD), diabetes, and cancer.
The study results emphasize the need for personalized approaches to risk prediction and prevention of premature cause-specific mortality over the life-course of individuals with BD, lead investigator Tapio Paljärvi, PhD, an epidemiologist at Niuvanniemi Hospital in Kuopio, Finland, told this news organization.
The findings were published online in BMJ Mental Health.
Alcohol a major contributor to early death
A number of studies have established that those with BD have twice the risk of dying prematurely, compared with those without the disorder.
To learn more about the factors contributing to early death in this patient population, the investigators analyzed data from nationwide Finnish medical and insurance registries. They identified and tracked the health of 47,000 patients, aged 15-64 years, with BD between 2004 and 2018.
The average age at the beginning of the monitoring period was 38 years, and 57% of the cohort were women.
To determine the excess deaths directly attributable to BD, the researchers compared the ratio of deaths observed over the monitoring period in those with BD to the number expected to die in the general population, also known as the standard mortality ratio.
Of the group with BD, 3,300 died during the monitoring period. The average age at death was 50, and almost two-thirds (65%, or 2,137) of those who died were men.
Investigators grouped excess deaths in BD patients into two categories – somatic and external.
Of those with BD who died from somatic or disease-related causes, alcohol caused the highest rate of death (29%). The second-leading cause was heart disease and stroke (27%), followed by cancer (22%), respiratory diseases (4%), and diabetes (2%).
Among the 595 patients with BD who died because of alcohol consumption, liver disease was the leading cause of death (48%). The second cause was accidental alcohol poisoning (28%), followed by alcohol dependence (10%).
The leading cause of death from external causes in BD patients was suicide (58%, or 740), nearly half of which (48%) were from an overdose with prescribed psychotropic medications.
Overall, 64%, or 2,104, of the deaths in BD patients from any cause were considered excess deaths, that is, the number of deaths above those expected for those without BD of comparable age and sex.
Most of the excess deaths from somatic illness were either from alcohol-related causes (40%) – a rate three times higher than that of the general population – CVD (26%), or cancer (10%).
High suicide rate
When the team examined excess deaths from external causes, they found that 61% (651) were attributable to suicide, a rate eight times higher than that of the general population.
“In terms of absolute numbers, somatic causes of death represented the majority of all deaths in BD, as also reported in previous research,” Dr. Paljärvi said.
“However, this finding reflects the fact that in many high-income countries most of the deaths are due to somatic causes; with CVD, cancers, and diseases of the nervous system as the leading causes of death in the older age groups,” he added.
Dr. Paljärvi advised that clinicians treating patients with BD balance therapeutic response with potentially serious long-term medication side effects, to prevent premature deaths.
A stronger emphasis on identifying and treating comorbid substance abuse is also warranted, he noted.
Dr. Paljärvi noted that the underlying causes of the excess somatic mortality in people with BD are not fully understood, but may result from the “complex interaction between various established risk factors, including tobacco use, alcohol abuse, physical inactivity, unhealthy diet, obesity, hypertension, etc.”
Regarding the generalizability of the findings, he said many previous studies have been based only on inpatient data and noted that the current study included individuals from various sources including inpatient and outpatient registries as well as social insurance registries.
“While the reported excess all-cause mortality rates are strikingly similar across populations globally, there is a paucity of more detailed cause-specific analyses of excess mortality in BD,” said Dr. Paljärvi, adding that these findings should be replicated in other countries, including the United States.
Chronic inflammation
Commenting on the findings, Benjamin Goldstein, MD, PhD, professor of psychiatry and pharmacology at the University of Toronto, noted that there are clear disparities in access to, and quality of care among, patients with BD and other serious mental illnesses.
“Taking heart disease as an example, disparities exist at virtually every point of contact, ranging from the point of preventive care to the time it takes to be assessed in the ER, to the likelihood of receiving cardiac catheterization, to the quality of postdischarge care,” said Dr. Goldstein.
He also noted that CVD occurs in patients with BD, on average, 10-15 years earlier than the general population. However, he added, “there is important evidence that when people with BD receive the same standard of care as those without BD their cardiovascular outcomes are similar.”
Dr. Goldstein also noted that inflammation, which is a driver of cardiovascular risk, is elevated among patients with BD, particularly during mania and depression.
“Given that the average person with BD has some degree of mood symptoms about 40% of the time, chronically elevated inflammation likely contributes in part to the excess risk of heart disease in bipolar disorder,” he said.
Dr. Goldstein’s team’s research focuses on microvessels. “We have found that microvessel function in both the heart and the brain, determined by MRI, is reduced among teens with BD,” he said.
His team has also found that endothelial function in fingertip microvessels, an indicator of future heart disease risk, varies according to mood states.
“Collectively, these findings suggest the microvascular problems may explain, in part, the extra risk of heart disease beyond traditional risk factors in BD,” he added.
The study was funded by a Wellcome Trust Senior Clinical Research Fellowship and by the Oxford Health Biomedical Research Centre. Dr. Paljärvi and Dr. Goldstein report no relevant financial relationships.
A version of this article appeared on Medscape.com.
In addition, patients with BD are three times more likely to die prematurely of all causes, compared with the general population, with alcohol-related diseases contributing to more premature deaths than cardiovascular disease (CVD), diabetes, and cancer.
The study results emphasize the need for personalized approaches to risk prediction and prevention of premature cause-specific mortality over the life-course of individuals with BD, lead investigator Tapio Paljärvi, PhD, an epidemiologist at Niuvanniemi Hospital in Kuopio, Finland, told this news organization.
The findings were published online in BMJ Mental Health.
Alcohol a major contributor to early death
A number of studies have established that those with BD have twice the risk of dying prematurely, compared with those without the disorder.
To learn more about the factors contributing to early death in this patient population, the investigators analyzed data from nationwide Finnish medical and insurance registries. They identified and tracked the health of 47,000 patients, aged 15-64 years, with BD between 2004 and 2018.
The average age at the beginning of the monitoring period was 38 years, and 57% of the cohort were women.
To determine the excess deaths directly attributable to BD, the researchers compared the ratio of deaths observed over the monitoring period in those with BD to the number expected to die in the general population, also known as the standard mortality ratio.
Of the group with BD, 3,300 died during the monitoring period. The average age at death was 50, and almost two-thirds (65%, or 2,137) of those who died were men.
Investigators grouped excess deaths in BD patients into two categories – somatic and external.
Of those with BD who died from somatic or disease-related causes, alcohol caused the highest rate of death (29%). The second-leading cause was heart disease and stroke (27%), followed by cancer (22%), respiratory diseases (4%), and diabetes (2%).
Among the 595 patients with BD who died because of alcohol consumption, liver disease was the leading cause of death (48%). The second cause was accidental alcohol poisoning (28%), followed by alcohol dependence (10%).
The leading cause of death from external causes in BD patients was suicide (58%, or 740), nearly half of which (48%) were from an overdose with prescribed psychotropic medications.
Overall, 64%, or 2,104, of the deaths in BD patients from any cause were considered excess deaths, that is, the number of deaths above those expected for those without BD of comparable age and sex.
Most of the excess deaths from somatic illness were either from alcohol-related causes (40%) – a rate three times higher than that of the general population – CVD (26%), or cancer (10%).
High suicide rate
When the team examined excess deaths from external causes, they found that 61% (651) were attributable to suicide, a rate eight times higher than that of the general population.
“In terms of absolute numbers, somatic causes of death represented the majority of all deaths in BD, as also reported in previous research,” Dr. Paljärvi said.
“However, this finding reflects the fact that in many high-income countries most of the deaths are due to somatic causes; with CVD, cancers, and diseases of the nervous system as the leading causes of death in the older age groups,” he added.
Dr. Paljärvi advised that clinicians treating patients with BD balance therapeutic response with potentially serious long-term medication side effects, to prevent premature deaths.
A stronger emphasis on identifying and treating comorbid substance abuse is also warranted, he noted.
Dr. Paljärvi noted that the underlying causes of the excess somatic mortality in people with BD are not fully understood, but may result from the “complex interaction between various established risk factors, including tobacco use, alcohol abuse, physical inactivity, unhealthy diet, obesity, hypertension, etc.”
Regarding the generalizability of the findings, he said many previous studies have been based only on inpatient data and noted that the current study included individuals from various sources including inpatient and outpatient registries as well as social insurance registries.
“While the reported excess all-cause mortality rates are strikingly similar across populations globally, there is a paucity of more detailed cause-specific analyses of excess mortality in BD,” said Dr. Paljärvi, adding that these findings should be replicated in other countries, including the United States.
Chronic inflammation
Commenting on the findings, Benjamin Goldstein, MD, PhD, professor of psychiatry and pharmacology at the University of Toronto, noted that there are clear disparities in access to, and quality of care among, patients with BD and other serious mental illnesses.
“Taking heart disease as an example, disparities exist at virtually every point of contact, ranging from the point of preventive care to the time it takes to be assessed in the ER, to the likelihood of receiving cardiac catheterization, to the quality of postdischarge care,” said Dr. Goldstein.
He also noted that CVD occurs in patients with BD, on average, 10-15 years earlier than the general population. However, he added, “there is important evidence that when people with BD receive the same standard of care as those without BD their cardiovascular outcomes are similar.”
Dr. Goldstein also noted that inflammation, which is a driver of cardiovascular risk, is elevated among patients with BD, particularly during mania and depression.
“Given that the average person with BD has some degree of mood symptoms about 40% of the time, chronically elevated inflammation likely contributes in part to the excess risk of heart disease in bipolar disorder,” he said.
Dr. Goldstein’s team’s research focuses on microvessels. “We have found that microvessel function in both the heart and the brain, determined by MRI, is reduced among teens with BD,” he said.
His team has also found that endothelial function in fingertip microvessels, an indicator of future heart disease risk, varies according to mood states.
“Collectively, these findings suggest the microvascular problems may explain, in part, the extra risk of heart disease beyond traditional risk factors in BD,” he added.
The study was funded by a Wellcome Trust Senior Clinical Research Fellowship and by the Oxford Health Biomedical Research Centre. Dr. Paljärvi and Dr. Goldstein report no relevant financial relationships.
A version of this article appeared on Medscape.com.
In addition, patients with BD are three times more likely to die prematurely of all causes, compared with the general population, with alcohol-related diseases contributing to more premature deaths than cardiovascular disease (CVD), diabetes, and cancer.
The study results emphasize the need for personalized approaches to risk prediction and prevention of premature cause-specific mortality over the life-course of individuals with BD, lead investigator Tapio Paljärvi, PhD, an epidemiologist at Niuvanniemi Hospital in Kuopio, Finland, told this news organization.
The findings were published online in BMJ Mental Health.
Alcohol a major contributor to early death
A number of studies have established that those with BD have twice the risk of dying prematurely, compared with those without the disorder.
To learn more about the factors contributing to early death in this patient population, the investigators analyzed data from nationwide Finnish medical and insurance registries. They identified and tracked the health of 47,000 patients, aged 15-64 years, with BD between 2004 and 2018.
The average age at the beginning of the monitoring period was 38 years, and 57% of the cohort were women.
To determine the excess deaths directly attributable to BD, the researchers compared the ratio of deaths observed over the monitoring period in those with BD to the number expected to die in the general population, also known as the standard mortality ratio.
Of the group with BD, 3,300 died during the monitoring period. The average age at death was 50, and almost two-thirds (65%, or 2,137) of those who died were men.
Investigators grouped excess deaths in BD patients into two categories – somatic and external.
Of those with BD who died from somatic or disease-related causes, alcohol caused the highest rate of death (29%). The second-leading cause was heart disease and stroke (27%), followed by cancer (22%), respiratory diseases (4%), and diabetes (2%).
Among the 595 patients with BD who died because of alcohol consumption, liver disease was the leading cause of death (48%). The second cause was accidental alcohol poisoning (28%), followed by alcohol dependence (10%).
The leading cause of death from external causes in BD patients was suicide (58%, or 740), nearly half of which (48%) were from an overdose with prescribed psychotropic medications.
Overall, 64%, or 2,104, of the deaths in BD patients from any cause were considered excess deaths, that is, the number of deaths above those expected for those without BD of comparable age and sex.
Most of the excess deaths from somatic illness were either from alcohol-related causes (40%) – a rate three times higher than that of the general population – CVD (26%), or cancer (10%).
High suicide rate
When the team examined excess deaths from external causes, they found that 61% (651) were attributable to suicide, a rate eight times higher than that of the general population.
“In terms of absolute numbers, somatic causes of death represented the majority of all deaths in BD, as also reported in previous research,” Dr. Paljärvi said.
“However, this finding reflects the fact that in many high-income countries most of the deaths are due to somatic causes; with CVD, cancers, and diseases of the nervous system as the leading causes of death in the older age groups,” he added.
Dr. Paljärvi advised that clinicians treating patients with BD balance therapeutic response with potentially serious long-term medication side effects, to prevent premature deaths.
A stronger emphasis on identifying and treating comorbid substance abuse is also warranted, he noted.
Dr. Paljärvi noted that the underlying causes of the excess somatic mortality in people with BD are not fully understood, but may result from the “complex interaction between various established risk factors, including tobacco use, alcohol abuse, physical inactivity, unhealthy diet, obesity, hypertension, etc.”
Regarding the generalizability of the findings, he said many previous studies have been based only on inpatient data and noted that the current study included individuals from various sources including inpatient and outpatient registries as well as social insurance registries.
“While the reported excess all-cause mortality rates are strikingly similar across populations globally, there is a paucity of more detailed cause-specific analyses of excess mortality in BD,” said Dr. Paljärvi, adding that these findings should be replicated in other countries, including the United States.
Chronic inflammation
Commenting on the findings, Benjamin Goldstein, MD, PhD, professor of psychiatry and pharmacology at the University of Toronto, noted that there are clear disparities in access to, and quality of care among, patients with BD and other serious mental illnesses.
“Taking heart disease as an example, disparities exist at virtually every point of contact, ranging from the point of preventive care to the time it takes to be assessed in the ER, to the likelihood of receiving cardiac catheterization, to the quality of postdischarge care,” said Dr. Goldstein.
He also noted that CVD occurs in patients with BD, on average, 10-15 years earlier than the general population. However, he added, “there is important evidence that when people with BD receive the same standard of care as those without BD their cardiovascular outcomes are similar.”
Dr. Goldstein also noted that inflammation, which is a driver of cardiovascular risk, is elevated among patients with BD, particularly during mania and depression.
“Given that the average person with BD has some degree of mood symptoms about 40% of the time, chronically elevated inflammation likely contributes in part to the excess risk of heart disease in bipolar disorder,” he said.
Dr. Goldstein’s team’s research focuses on microvessels. “We have found that microvessel function in both the heart and the brain, determined by MRI, is reduced among teens with BD,” he said.
His team has also found that endothelial function in fingertip microvessels, an indicator of future heart disease risk, varies according to mood states.
“Collectively, these findings suggest the microvascular problems may explain, in part, the extra risk of heart disease beyond traditional risk factors in BD,” he added.
The study was funded by a Wellcome Trust Senior Clinical Research Fellowship and by the Oxford Health Biomedical Research Centre. Dr. Paljärvi and Dr. Goldstein report no relevant financial relationships.
A version of this article appeared on Medscape.com.
FROM BMJ MENTAL HEALTH
Reassuring data on stimulants for ADHD in kids and later substance abuse
“Throughout rigorous analyses, and after accounting for more than 70 variables in this longitudinal sample of children with ADHD taking stimulants, we did not find an association with later substance use,” lead investigator Brooke Molina, PhD, director of the youth and family research program at the University of Pittsburgh, said in an interview.
The findings were published online in JAMA Psychiatry.
Protective effect?
Owing to symptoms of impulsivity inherent to ADHD, the disorder itself carries a risk for elevated substance use, the investigators note.
They speculate that this may be why some previous research suggests prescription stimulants reduce the risk of subsequent substance use disorder. However, other studies have found no such protective link.
To shed more light on the issue, the investigators used data from the Multimodal Treatment Study of ADHD, a multicenter, 14-month randomized clinical trial of medication and behavioral therapy for children with ADHD. However, for the purposes of the present study, investigators focused only on stimulant use in children.
At the time of recruitment, the children were aged 7-9 and had been diagnosed with ADHD between 1994 and 1996.
Investigators assessed the participants prior to randomization, at months 3 and 9, and at the end of treatment. They were then followed for 16 years and were assessed at years 2, 3, 6, 8, 10, 12, 14, and 16 until a mean age of 25.
During 12-, 14-, and 16-year follow-up, participants completed a questionnaire on their use of alcohol, marijuana, cigarettes, and several illicit and prescription drugs.
Investigators collected information on participants’ stimulant treatment via the Services for Children and Adolescents Parent Interview until they reached age 18. After that, participants reported their own stimulant treatment.
A total of 579 participants were included in the analysis. Of these, 61% were White, 20% were Black, and 8% were Hispanic.
Decline in stimulant use over time
The analysis showed that stimulant use declined “precipitously” over time – from 60% at the 2- and 3-year assessments to an average of 7% during early adulthood.
The investigators also found that for some participants, substance use increased steadily through adolescence and remained stable through early adulthood. For instance, 36.5% of the adolescents in the total cohort reported smoking tobacco daily, and 29.6% reported using marijuana every week.
In addition, approximately 21% of the participants indulged in heavy drinking at least once a week, and 6% reported “other” substance use, which included sedative misuse, heroin, inhalants, hallucinogens, or other substances taken to “get high.”
After accounting for developmental trends in substance use in the sample through adolescence into early adulthood with several rigorous statistical models, the researchers found no association between current or prior stimulant treatment and cigarette, marijuana, alcohol, or other substance use, with one exception.
While cumulative stimulant treatment was associated with increased heavy drinking, the effect size of this association was small. Each additional year of cumulative stimulant use was estimated to increase participants’ likelihood of any binge drinking/drunkenness vs. none in the past year by 4% (95% confidence interval, 0.01-0.08; P =.03).
When the investigators used a causal analytic method to account for age and other time-varying characteristics, including household income, behavior problems, and parental support, there was no evidence that current (B range, –0.62-0.34) or prior stimulant treatment (B range, –0.06-0.70) or their interaction (B range, –0.49-0.86) was associated with substance use in adulthood.
Dr. Molina noted that although participants were recruited from multiple sites, the sample may not be generalizable because children and parents who present for an intensive treatment study such as this are not necessarily representative of the general ADHD population.
Reassuring findings
In a comment, Julie Schweitzer, PhD, professor of psychiatry and behavioral sciences at the University of California, Davis, said she hopes the study findings will quell the stigma surrounding stimulant use by children with ADHD.
“Parents’ fears that stimulant use will lead to a substance use disorder inhibits them from bringing their children for an ADHD evaluation, thus reducing the likelihood that they will receive timely treatment,” Dr. Schweitzer said.
“While stimulant medication is the first-line treatment most often recommended for most persons with ADHD, by not following through on evaluations, parents also miss the opportunity to learn about nonpharmacological strategies that might also be helpful to help cope with ADHD symptoms and its potential co-occurring challenges,” she added.
Dr. Schweitzer also noted that many parents hope their children will outgrow the symptoms without realizing that by not obtaining an evaluation and treatment for their child, there is an associated cost, including less than optimal academic performance, social relationships, and emotional health.
The Multimodal Treatment Study of Children with ADHD was a National Institute of Mental Health cooperative agreement randomized clinical trial, continued under an NIMH contract as a follow-up study and under a National Institute on Drug Abuse contract followed by a data analysis grant. Dr. Molina reported grants from the NIMH and the National Institute on Drug Abuse during the conduct of the study.
A version of this article first appeared on Medscape.com.
“Throughout rigorous analyses, and after accounting for more than 70 variables in this longitudinal sample of children with ADHD taking stimulants, we did not find an association with later substance use,” lead investigator Brooke Molina, PhD, director of the youth and family research program at the University of Pittsburgh, said in an interview.
The findings were published online in JAMA Psychiatry.
Protective effect?
Owing to symptoms of impulsivity inherent to ADHD, the disorder itself carries a risk for elevated substance use, the investigators note.
They speculate that this may be why some previous research suggests prescription stimulants reduce the risk of subsequent substance use disorder. However, other studies have found no such protective link.
To shed more light on the issue, the investigators used data from the Multimodal Treatment Study of ADHD, a multicenter, 14-month randomized clinical trial of medication and behavioral therapy for children with ADHD. However, for the purposes of the present study, investigators focused only on stimulant use in children.
At the time of recruitment, the children were aged 7-9 and had been diagnosed with ADHD between 1994 and 1996.
Investigators assessed the participants prior to randomization, at months 3 and 9, and at the end of treatment. They were then followed for 16 years and were assessed at years 2, 3, 6, 8, 10, 12, 14, and 16 until a mean age of 25.
During 12-, 14-, and 16-year follow-up, participants completed a questionnaire on their use of alcohol, marijuana, cigarettes, and several illicit and prescription drugs.
Investigators collected information on participants’ stimulant treatment via the Services for Children and Adolescents Parent Interview until they reached age 18. After that, participants reported their own stimulant treatment.
A total of 579 participants were included in the analysis. Of these, 61% were White, 20% were Black, and 8% were Hispanic.
Decline in stimulant use over time
The analysis showed that stimulant use declined “precipitously” over time – from 60% at the 2- and 3-year assessments to an average of 7% during early adulthood.
The investigators also found that for some participants, substance use increased steadily through adolescence and remained stable through early adulthood. For instance, 36.5% of the adolescents in the total cohort reported smoking tobacco daily, and 29.6% reported using marijuana every week.
In addition, approximately 21% of the participants indulged in heavy drinking at least once a week, and 6% reported “other” substance use, which included sedative misuse, heroin, inhalants, hallucinogens, or other substances taken to “get high.”
After accounting for developmental trends in substance use in the sample through adolescence into early adulthood with several rigorous statistical models, the researchers found no association between current or prior stimulant treatment and cigarette, marijuana, alcohol, or other substance use, with one exception.
While cumulative stimulant treatment was associated with increased heavy drinking, the effect size of this association was small. Each additional year of cumulative stimulant use was estimated to increase participants’ likelihood of any binge drinking/drunkenness vs. none in the past year by 4% (95% confidence interval, 0.01-0.08; P =.03).
When the investigators used a causal analytic method to account for age and other time-varying characteristics, including household income, behavior problems, and parental support, there was no evidence that current (B range, –0.62-0.34) or prior stimulant treatment (B range, –0.06-0.70) or their interaction (B range, –0.49-0.86) was associated with substance use in adulthood.
Dr. Molina noted that although participants were recruited from multiple sites, the sample may not be generalizable because children and parents who present for an intensive treatment study such as this are not necessarily representative of the general ADHD population.
Reassuring findings
In a comment, Julie Schweitzer, PhD, professor of psychiatry and behavioral sciences at the University of California, Davis, said she hopes the study findings will quell the stigma surrounding stimulant use by children with ADHD.
“Parents’ fears that stimulant use will lead to a substance use disorder inhibits them from bringing their children for an ADHD evaluation, thus reducing the likelihood that they will receive timely treatment,” Dr. Schweitzer said.
“While stimulant medication is the first-line treatment most often recommended for most persons with ADHD, by not following through on evaluations, parents also miss the opportunity to learn about nonpharmacological strategies that might also be helpful to help cope with ADHD symptoms and its potential co-occurring challenges,” she added.
Dr. Schweitzer also noted that many parents hope their children will outgrow the symptoms without realizing that by not obtaining an evaluation and treatment for their child, there is an associated cost, including less than optimal academic performance, social relationships, and emotional health.
The Multimodal Treatment Study of Children with ADHD was a National Institute of Mental Health cooperative agreement randomized clinical trial, continued under an NIMH contract as a follow-up study and under a National Institute on Drug Abuse contract followed by a data analysis grant. Dr. Molina reported grants from the NIMH and the National Institute on Drug Abuse during the conduct of the study.
A version of this article first appeared on Medscape.com.
“Throughout rigorous analyses, and after accounting for more than 70 variables in this longitudinal sample of children with ADHD taking stimulants, we did not find an association with later substance use,” lead investigator Brooke Molina, PhD, director of the youth and family research program at the University of Pittsburgh, said in an interview.
The findings were published online in JAMA Psychiatry.
Protective effect?
Owing to symptoms of impulsivity inherent to ADHD, the disorder itself carries a risk for elevated substance use, the investigators note.
They speculate that this may be why some previous research suggests prescription stimulants reduce the risk of subsequent substance use disorder. However, other studies have found no such protective link.
To shed more light on the issue, the investigators used data from the Multimodal Treatment Study of ADHD, a multicenter, 14-month randomized clinical trial of medication and behavioral therapy for children with ADHD. However, for the purposes of the present study, investigators focused only on stimulant use in children.
At the time of recruitment, the children were aged 7-9 and had been diagnosed with ADHD between 1994 and 1996.
Investigators assessed the participants prior to randomization, at months 3 and 9, and at the end of treatment. They were then followed for 16 years and were assessed at years 2, 3, 6, 8, 10, 12, 14, and 16 until a mean age of 25.
During 12-, 14-, and 16-year follow-up, participants completed a questionnaire on their use of alcohol, marijuana, cigarettes, and several illicit and prescription drugs.
Investigators collected information on participants’ stimulant treatment via the Services for Children and Adolescents Parent Interview until they reached age 18. After that, participants reported their own stimulant treatment.
A total of 579 participants were included in the analysis. Of these, 61% were White, 20% were Black, and 8% were Hispanic.
Decline in stimulant use over time
The analysis showed that stimulant use declined “precipitously” over time – from 60% at the 2- and 3-year assessments to an average of 7% during early adulthood.
The investigators also found that for some participants, substance use increased steadily through adolescence and remained stable through early adulthood. For instance, 36.5% of the adolescents in the total cohort reported smoking tobacco daily, and 29.6% reported using marijuana every week.
In addition, approximately 21% of the participants indulged in heavy drinking at least once a week, and 6% reported “other” substance use, which included sedative misuse, heroin, inhalants, hallucinogens, or other substances taken to “get high.”
After accounting for developmental trends in substance use in the sample through adolescence into early adulthood with several rigorous statistical models, the researchers found no association between current or prior stimulant treatment and cigarette, marijuana, alcohol, or other substance use, with one exception.
While cumulative stimulant treatment was associated with increased heavy drinking, the effect size of this association was small. Each additional year of cumulative stimulant use was estimated to increase participants’ likelihood of any binge drinking/drunkenness vs. none in the past year by 4% (95% confidence interval, 0.01-0.08; P =.03).
When the investigators used a causal analytic method to account for age and other time-varying characteristics, including household income, behavior problems, and parental support, there was no evidence that current (B range, –0.62-0.34) or prior stimulant treatment (B range, –0.06-0.70) or their interaction (B range, –0.49-0.86) was associated with substance use in adulthood.
Dr. Molina noted that although participants were recruited from multiple sites, the sample may not be generalizable because children and parents who present for an intensive treatment study such as this are not necessarily representative of the general ADHD population.
Reassuring findings
In a comment, Julie Schweitzer, PhD, professor of psychiatry and behavioral sciences at the University of California, Davis, said she hopes the study findings will quell the stigma surrounding stimulant use by children with ADHD.
“Parents’ fears that stimulant use will lead to a substance use disorder inhibits them from bringing their children for an ADHD evaluation, thus reducing the likelihood that they will receive timely treatment,” Dr. Schweitzer said.
“While stimulant medication is the first-line treatment most often recommended for most persons with ADHD, by not following through on evaluations, parents also miss the opportunity to learn about nonpharmacological strategies that might also be helpful to help cope with ADHD symptoms and its potential co-occurring challenges,” she added.
Dr. Schweitzer also noted that many parents hope their children will outgrow the symptoms without realizing that by not obtaining an evaluation and treatment for their child, there is an associated cost, including less than optimal academic performance, social relationships, and emotional health.
The Multimodal Treatment Study of Children with ADHD was a National Institute of Mental Health cooperative agreement randomized clinical trial, continued under an NIMH contract as a follow-up study and under a National Institute on Drug Abuse contract followed by a data analysis grant. Dr. Molina reported grants from the NIMH and the National Institute on Drug Abuse during the conduct of the study.
A version of this article first appeared on Medscape.com.
FROM JAMA PSYCHIATRY
Tooth loss, gum disease tied to hippocampal atrophy
Gum disease and tooth loss are linked to hippocampal atrophy and may have a more negative impact on the brain than aging, new research suggests.
Investigators found that in a late middle-aged and older cohort, among patients with mild periodontitis, having fewer teeth was linked to a faster rate of left hippocampal atrophy. For those with severe gum disease, each additional lost tooth was associated with a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“Tooth loss and gum disease, which is inflammation of the tissue around the teeth that can cause shrinkage of the gums and loosening of the teeth, are very common, so evaluating a potential link with dementia is incredibly important,” study investigator Satoshi Yamaguchi, PhD, DDS, of Tohoku University, in Sendai, Japan, said in a release.
“Our study found that these conditions may play a role in the health of the brain area that controls thinking and memory, giving people another reason to take better care of their teeth,” Dr. Yamaguchi noted.
The findings were published online in Neurology.
Greater effect than aging
Although previous research suggests that tooth loss and periodontitis are risk factors for Alzheimer’s disease, longitudinal research has not shown a significant correlation between these conditions and hippocampal atrophy.
To clarify this association, the investigators followed 172 men and women (average age, 67 years) who had undergone two MRI brain scans 4 years apart and had had a dental examination. None of the participants had any signs of cognitive decline at baseline.
At study outset, information on cerebrovascular and cardiovascular disease, alcohol consumption, smoking, depression history, and cognitive function was gathered. The Mini Mental State Exam and dental exams were administered at baseline and at 4-year follow-up.
For each participant, the number of teeth was counted, and all participants were assessed for gum disease via periodontal probing depth (PD).
Healthy gums typically measure between 1 and 3 mm in depth. Mild gum disease is signified by measurements of 3-4 mm in several areas. Severe gum disease involves measurements of 5-6 mm and is accompanied by greater bone loss, leading to potential tooth loss.
Multiple regression analysis was performed, with the annual symmetric percentage change (SPC) of hippocampal volume as the dependent variable. The analysis included an interaction term between the number of teeth present (NTP) and mean PD.
Over the 4-year study period, the investigators found that the qualitative interaction between NTP and mean PD was significant for the annual SPC in the left hippocampus.
Among those with mild periodontitis, having fewer teeth correlated with more rapid atrophy of the left hippocampus, such that every tooth lost was equivalent to nearly 1 year of brain aging.
In contrast, having more teeth was associated with a faster rate of left hippocampal atrophy among those with severe periodontitis and was equivalent to 1.3 years of brain aging.
For those with severe gum disease, each additional lost tooth corresponded to a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“This finding indicates that periodontitis may have a greater association with left hippocampal atrophy than the association exhibited by age. Furthermore, in cases of mild periodontitis, fewer teeth may be associated with a subsequent decline in cognitive function,” the investigators write.
The study’s results, they add, highlight the importance of preserving oral health, not just the retaining of teeth. “These findings suggest that retaining teeth with severe gum disease is associated with brain atrophy,” said Dr. Yamaguchi.
“Controlling the progression of gum disease through regular dental visits is crucial, and teeth with severe gum disease may need to be extracted and replaced with appropriate prosthetic devices,” he added.
The researchers note that further studies are needed to confirm these findings.
The study was supported the Japanese Ministry of Education, Culture, Sports, Science, and Technology; Kelo University; Japan Arteriosclerosis Prevention Fund; Japanese Ministry of Health, Labor, and Welfare; Teiko University; Pfizer Japan; Bayer Yakuhin; Chugai Pharmaceutical; Daiichi Sankyo; Astrellas Pharma; Takeda Pharmaceutical; the Health Care Science Institute; the Health Science Center; and the Takeda Science Foundation. The investigators reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Gum disease and tooth loss are linked to hippocampal atrophy and may have a more negative impact on the brain than aging, new research suggests.
Investigators found that in a late middle-aged and older cohort, among patients with mild periodontitis, having fewer teeth was linked to a faster rate of left hippocampal atrophy. For those with severe gum disease, each additional lost tooth was associated with a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“Tooth loss and gum disease, which is inflammation of the tissue around the teeth that can cause shrinkage of the gums and loosening of the teeth, are very common, so evaluating a potential link with dementia is incredibly important,” study investigator Satoshi Yamaguchi, PhD, DDS, of Tohoku University, in Sendai, Japan, said in a release.
“Our study found that these conditions may play a role in the health of the brain area that controls thinking and memory, giving people another reason to take better care of their teeth,” Dr. Yamaguchi noted.
The findings were published online in Neurology.
Greater effect than aging
Although previous research suggests that tooth loss and periodontitis are risk factors for Alzheimer’s disease, longitudinal research has not shown a significant correlation between these conditions and hippocampal atrophy.
To clarify this association, the investigators followed 172 men and women (average age, 67 years) who had undergone two MRI brain scans 4 years apart and had had a dental examination. None of the participants had any signs of cognitive decline at baseline.
At study outset, information on cerebrovascular and cardiovascular disease, alcohol consumption, smoking, depression history, and cognitive function was gathered. The Mini Mental State Exam and dental exams were administered at baseline and at 4-year follow-up.
For each participant, the number of teeth was counted, and all participants were assessed for gum disease via periodontal probing depth (PD).
Healthy gums typically measure between 1 and 3 mm in depth. Mild gum disease is signified by measurements of 3-4 mm in several areas. Severe gum disease involves measurements of 5-6 mm and is accompanied by greater bone loss, leading to potential tooth loss.
Multiple regression analysis was performed, with the annual symmetric percentage change (SPC) of hippocampal volume as the dependent variable. The analysis included an interaction term between the number of teeth present (NTP) and mean PD.
Over the 4-year study period, the investigators found that the qualitative interaction between NTP and mean PD was significant for the annual SPC in the left hippocampus.
Among those with mild periodontitis, having fewer teeth correlated with more rapid atrophy of the left hippocampus, such that every tooth lost was equivalent to nearly 1 year of brain aging.
In contrast, having more teeth was associated with a faster rate of left hippocampal atrophy among those with severe periodontitis and was equivalent to 1.3 years of brain aging.
For those with severe gum disease, each additional lost tooth corresponded to a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“This finding indicates that periodontitis may have a greater association with left hippocampal atrophy than the association exhibited by age. Furthermore, in cases of mild periodontitis, fewer teeth may be associated with a subsequent decline in cognitive function,” the investigators write.
The study’s results, they add, highlight the importance of preserving oral health, not just the retaining of teeth. “These findings suggest that retaining teeth with severe gum disease is associated with brain atrophy,” said Dr. Yamaguchi.
“Controlling the progression of gum disease through regular dental visits is crucial, and teeth with severe gum disease may need to be extracted and replaced with appropriate prosthetic devices,” he added.
The researchers note that further studies are needed to confirm these findings.
The study was supported the Japanese Ministry of Education, Culture, Sports, Science, and Technology; Kelo University; Japan Arteriosclerosis Prevention Fund; Japanese Ministry of Health, Labor, and Welfare; Teiko University; Pfizer Japan; Bayer Yakuhin; Chugai Pharmaceutical; Daiichi Sankyo; Astrellas Pharma; Takeda Pharmaceutical; the Health Care Science Institute; the Health Science Center; and the Takeda Science Foundation. The investigators reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Gum disease and tooth loss are linked to hippocampal atrophy and may have a more negative impact on the brain than aging, new research suggests.
Investigators found that in a late middle-aged and older cohort, among patients with mild periodontitis, having fewer teeth was linked to a faster rate of left hippocampal atrophy. For those with severe gum disease, each additional lost tooth was associated with a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“Tooth loss and gum disease, which is inflammation of the tissue around the teeth that can cause shrinkage of the gums and loosening of the teeth, are very common, so evaluating a potential link with dementia is incredibly important,” study investigator Satoshi Yamaguchi, PhD, DDS, of Tohoku University, in Sendai, Japan, said in a release.
“Our study found that these conditions may play a role in the health of the brain area that controls thinking and memory, giving people another reason to take better care of their teeth,” Dr. Yamaguchi noted.
The findings were published online in Neurology.
Greater effect than aging
Although previous research suggests that tooth loss and periodontitis are risk factors for Alzheimer’s disease, longitudinal research has not shown a significant correlation between these conditions and hippocampal atrophy.
To clarify this association, the investigators followed 172 men and women (average age, 67 years) who had undergone two MRI brain scans 4 years apart and had had a dental examination. None of the participants had any signs of cognitive decline at baseline.
At study outset, information on cerebrovascular and cardiovascular disease, alcohol consumption, smoking, depression history, and cognitive function was gathered. The Mini Mental State Exam and dental exams were administered at baseline and at 4-year follow-up.
For each participant, the number of teeth was counted, and all participants were assessed for gum disease via periodontal probing depth (PD).
Healthy gums typically measure between 1 and 3 mm in depth. Mild gum disease is signified by measurements of 3-4 mm in several areas. Severe gum disease involves measurements of 5-6 mm and is accompanied by greater bone loss, leading to potential tooth loss.
Multiple regression analysis was performed, with the annual symmetric percentage change (SPC) of hippocampal volume as the dependent variable. The analysis included an interaction term between the number of teeth present (NTP) and mean PD.
Over the 4-year study period, the investigators found that the qualitative interaction between NTP and mean PD was significant for the annual SPC in the left hippocampus.
Among those with mild periodontitis, having fewer teeth correlated with more rapid atrophy of the left hippocampus, such that every tooth lost was equivalent to nearly 1 year of brain aging.
In contrast, having more teeth was associated with a faster rate of left hippocampal atrophy among those with severe periodontitis and was equivalent to 1.3 years of brain aging.
For those with severe gum disease, each additional lost tooth corresponded to a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
“This finding indicates that periodontitis may have a greater association with left hippocampal atrophy than the association exhibited by age. Furthermore, in cases of mild periodontitis, fewer teeth may be associated with a subsequent decline in cognitive function,” the investigators write.
The study’s results, they add, highlight the importance of preserving oral health, not just the retaining of teeth. “These findings suggest that retaining teeth with severe gum disease is associated with brain atrophy,” said Dr. Yamaguchi.
“Controlling the progression of gum disease through regular dental visits is crucial, and teeth with severe gum disease may need to be extracted and replaced with appropriate prosthetic devices,” he added.
The researchers note that further studies are needed to confirm these findings.
The study was supported the Japanese Ministry of Education, Culture, Sports, Science, and Technology; Kelo University; Japan Arteriosclerosis Prevention Fund; Japanese Ministry of Health, Labor, and Welfare; Teiko University; Pfizer Japan; Bayer Yakuhin; Chugai Pharmaceutical; Daiichi Sankyo; Astrellas Pharma; Takeda Pharmaceutical; the Health Care Science Institute; the Health Science Center; and the Takeda Science Foundation. The investigators reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM NEUROLOGY
Social isolation linked to lower brain volume
Further, the association between social isolation and reduced brain volume appears to be at least partly mediated by depressive symptoms.
“We believe that efforts should be made to reduce social isolation among the elderly as much as possible,” investigator Toshiharu Ninomiya, MD, PhD, professor of epidemiology and public health at Kyushu University in Fukuoka, Japan, said in an interview.
The study was published online in Neurology.
A dementia prevention strategy
Dr. Ninomiya noted there have been several studies suggesting that social interaction is beneficial in preventing cognitive decline and the onset of dementia.
In addition, recent epidemiological studies have shown social isolation is associated with a risk for cognitive decline and dementia.
Although the investigators note that very little is known about the link between the two, some studies have shown that social isolation is linked with depressive symptoms in older adults, and late-life depression has been associated with brain atrophy.
To explore the potential link between social isolation and brain atrophy, as well as the role of depression as a potential mediator, the investigators studied nearly 9,000 citizens aged 65 and older as part of the Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD), an ongoing, community-based nationwide cohort study of dementia in Japan.
Participants were recruited from eight research sites across Japan, and each had a baseline MRI scan between 2016 and 2018. The investigators excluded those with a dementia diagnosis at baseline. Self-reported frequency of social contact was categorized as every day, several times a week, several times a month, or seldom.
Participants also answered questions about medical history and treatment, antihypertensive or antidiabetic medications, exercise, current alcohol intake, and smoking habits. Depressive symptoms were assessed with the Geriatric Depression Scale. Of the participants, 57% were women, and the mean age was 73 years.
Lower brain volume
Total brain volume was lower in those with the lowest frequency of social contact vs. those with the highest frequency (67.3% vs. 67.8%). Less social contact was also linked to smaller temporal lobe, occipital lobe, cingulum, hippocampus, and amygdala volumes.
White matter lesion volume increased with fewer social interactions, from 0.26% in the most social group to 0.30% in the least.
Cognitive function was higher in participants who had daily social contact, compared with those who had the least contact (28 vs. 27 on the Mini-Mental State Examination; P < .001). Scores between 25 and 30 are considered normal.
Depressive symptoms were lower in the daily contact group, compared with the seldom-contact group (P < .001).
The team also found that lower frequency of social contact was significantly associated with the smaller superior, middle, or inferior temporal gyrus; and a smaller fusiform gyrus, transverse temporal gyrus, temporal pole, and entorhinal cortex, among other subregions.
Mediation analyses indicated that depressive symptoms accounted for only 15%-29% of the associations of lower frequency of social contact with each regional volume.
Worse physical health
The results also showed that socially isolated participants were more likely to have diabetes, to have hypertension, to smoke, and to be physically inactive.
“Cardiovascular risk factors have been reported to cause endothelial dysfunction in the brain, which could in turn lead to problems in maintaining microcirculation and blood-brain barrier function,” the investigators write.
Some epidemiological studies have associated cardiovascular risk factors with brain atrophy, they noted, which could have been one of the underlying mechanisms.
Another possibility is that reduced cognitive stimulation due to social isolation may cause brain atrophy, they add.
“Ultimately,” Dr. Ninomiya said, “the detailed mechanism of the relationship between social isolation and brain volume is not yet clear.”
He also said more research is needed to know whether the findings would apply to people in other countries.
In an accompanying editorial, Alexa Walter, PhD, and Danielle Sandsmark, MD, PhD, from the University of Pennsylvania, Philadelphia, note that isolation has been associated with many adverse health outcomes, including increased risk of heart disease, stroke, and premature death.
“Given these findings, future work considering social health factors in the context of neurological disease is an important area of research to consider. Additionally, leveraging other existing longitudinal studies could provide us with an opportunity to better understand these relationships within populations and inform public policy to address these issues,” Dr. Walter and Dr. Sandsmark write.
The study was funded by the Japan Agency for Medical Research and Development and Suntory Holdings Limited. Dr. Ninomiya reports receiving grants from Suntory Holdings Limited.
A version of this article first appeared on Medscape.com.
Further, the association between social isolation and reduced brain volume appears to be at least partly mediated by depressive symptoms.
“We believe that efforts should be made to reduce social isolation among the elderly as much as possible,” investigator Toshiharu Ninomiya, MD, PhD, professor of epidemiology and public health at Kyushu University in Fukuoka, Japan, said in an interview.
The study was published online in Neurology.
A dementia prevention strategy
Dr. Ninomiya noted there have been several studies suggesting that social interaction is beneficial in preventing cognitive decline and the onset of dementia.
In addition, recent epidemiological studies have shown social isolation is associated with a risk for cognitive decline and dementia.
Although the investigators note that very little is known about the link between the two, some studies have shown that social isolation is linked with depressive symptoms in older adults, and late-life depression has been associated with brain atrophy.
To explore the potential link between social isolation and brain atrophy, as well as the role of depression as a potential mediator, the investigators studied nearly 9,000 citizens aged 65 and older as part of the Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD), an ongoing, community-based nationwide cohort study of dementia in Japan.
Participants were recruited from eight research sites across Japan, and each had a baseline MRI scan between 2016 and 2018. The investigators excluded those with a dementia diagnosis at baseline. Self-reported frequency of social contact was categorized as every day, several times a week, several times a month, or seldom.
Participants also answered questions about medical history and treatment, antihypertensive or antidiabetic medications, exercise, current alcohol intake, and smoking habits. Depressive symptoms were assessed with the Geriatric Depression Scale. Of the participants, 57% were women, and the mean age was 73 years.
Lower brain volume
Total brain volume was lower in those with the lowest frequency of social contact vs. those with the highest frequency (67.3% vs. 67.8%). Less social contact was also linked to smaller temporal lobe, occipital lobe, cingulum, hippocampus, and amygdala volumes.
White matter lesion volume increased with fewer social interactions, from 0.26% in the most social group to 0.30% in the least.
Cognitive function was higher in participants who had daily social contact, compared with those who had the least contact (28 vs. 27 on the Mini-Mental State Examination; P < .001). Scores between 25 and 30 are considered normal.
Depressive symptoms were lower in the daily contact group, compared with the seldom-contact group (P < .001).
The team also found that lower frequency of social contact was significantly associated with the smaller superior, middle, or inferior temporal gyrus; and a smaller fusiform gyrus, transverse temporal gyrus, temporal pole, and entorhinal cortex, among other subregions.
Mediation analyses indicated that depressive symptoms accounted for only 15%-29% of the associations of lower frequency of social contact with each regional volume.
Worse physical health
The results also showed that socially isolated participants were more likely to have diabetes, to have hypertension, to smoke, and to be physically inactive.
“Cardiovascular risk factors have been reported to cause endothelial dysfunction in the brain, which could in turn lead to problems in maintaining microcirculation and blood-brain barrier function,” the investigators write.
Some epidemiological studies have associated cardiovascular risk factors with brain atrophy, they noted, which could have been one of the underlying mechanisms.
Another possibility is that reduced cognitive stimulation due to social isolation may cause brain atrophy, they add.
“Ultimately,” Dr. Ninomiya said, “the detailed mechanism of the relationship between social isolation and brain volume is not yet clear.”
He also said more research is needed to know whether the findings would apply to people in other countries.
In an accompanying editorial, Alexa Walter, PhD, and Danielle Sandsmark, MD, PhD, from the University of Pennsylvania, Philadelphia, note that isolation has been associated with many adverse health outcomes, including increased risk of heart disease, stroke, and premature death.
“Given these findings, future work considering social health factors in the context of neurological disease is an important area of research to consider. Additionally, leveraging other existing longitudinal studies could provide us with an opportunity to better understand these relationships within populations and inform public policy to address these issues,” Dr. Walter and Dr. Sandsmark write.
The study was funded by the Japan Agency for Medical Research and Development and Suntory Holdings Limited. Dr. Ninomiya reports receiving grants from Suntory Holdings Limited.
A version of this article first appeared on Medscape.com.
Further, the association between social isolation and reduced brain volume appears to be at least partly mediated by depressive symptoms.
“We believe that efforts should be made to reduce social isolation among the elderly as much as possible,” investigator Toshiharu Ninomiya, MD, PhD, professor of epidemiology and public health at Kyushu University in Fukuoka, Japan, said in an interview.
The study was published online in Neurology.
A dementia prevention strategy
Dr. Ninomiya noted there have been several studies suggesting that social interaction is beneficial in preventing cognitive decline and the onset of dementia.
In addition, recent epidemiological studies have shown social isolation is associated with a risk for cognitive decline and dementia.
Although the investigators note that very little is known about the link between the two, some studies have shown that social isolation is linked with depressive symptoms in older adults, and late-life depression has been associated with brain atrophy.
To explore the potential link between social isolation and brain atrophy, as well as the role of depression as a potential mediator, the investigators studied nearly 9,000 citizens aged 65 and older as part of the Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD), an ongoing, community-based nationwide cohort study of dementia in Japan.
Participants were recruited from eight research sites across Japan, and each had a baseline MRI scan between 2016 and 2018. The investigators excluded those with a dementia diagnosis at baseline. Self-reported frequency of social contact was categorized as every day, several times a week, several times a month, or seldom.
Participants also answered questions about medical history and treatment, antihypertensive or antidiabetic medications, exercise, current alcohol intake, and smoking habits. Depressive symptoms were assessed with the Geriatric Depression Scale. Of the participants, 57% were women, and the mean age was 73 years.
Lower brain volume
Total brain volume was lower in those with the lowest frequency of social contact vs. those with the highest frequency (67.3% vs. 67.8%). Less social contact was also linked to smaller temporal lobe, occipital lobe, cingulum, hippocampus, and amygdala volumes.
White matter lesion volume increased with fewer social interactions, from 0.26% in the most social group to 0.30% in the least.
Cognitive function was higher in participants who had daily social contact, compared with those who had the least contact (28 vs. 27 on the Mini-Mental State Examination; P < .001). Scores between 25 and 30 are considered normal.
Depressive symptoms were lower in the daily contact group, compared with the seldom-contact group (P < .001).
The team also found that lower frequency of social contact was significantly associated with the smaller superior, middle, or inferior temporal gyrus; and a smaller fusiform gyrus, transverse temporal gyrus, temporal pole, and entorhinal cortex, among other subregions.
Mediation analyses indicated that depressive symptoms accounted for only 15%-29% of the associations of lower frequency of social contact with each regional volume.
Worse physical health
The results also showed that socially isolated participants were more likely to have diabetes, to have hypertension, to smoke, and to be physically inactive.
“Cardiovascular risk factors have been reported to cause endothelial dysfunction in the brain, which could in turn lead to problems in maintaining microcirculation and blood-brain barrier function,” the investigators write.
Some epidemiological studies have associated cardiovascular risk factors with brain atrophy, they noted, which could have been one of the underlying mechanisms.
Another possibility is that reduced cognitive stimulation due to social isolation may cause brain atrophy, they add.
“Ultimately,” Dr. Ninomiya said, “the detailed mechanism of the relationship between social isolation and brain volume is not yet clear.”
He also said more research is needed to know whether the findings would apply to people in other countries.
In an accompanying editorial, Alexa Walter, PhD, and Danielle Sandsmark, MD, PhD, from the University of Pennsylvania, Philadelphia, note that isolation has been associated with many adverse health outcomes, including increased risk of heart disease, stroke, and premature death.
“Given these findings, future work considering social health factors in the context of neurological disease is an important area of research to consider. Additionally, leveraging other existing longitudinal studies could provide us with an opportunity to better understand these relationships within populations and inform public policy to address these issues,” Dr. Walter and Dr. Sandsmark write.
The study was funded by the Japan Agency for Medical Research and Development and Suntory Holdings Limited. Dr. Ninomiya reports receiving grants from Suntory Holdings Limited.
A version of this article first appeared on Medscape.com.
FROM NEUROLOGY