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1.
Psychol Trauma ; 16(3): 407-415, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37796549

RESUMO

OBJECTIVE: The construct of psychological resilience has received increasing attention in the mental health field. This article describes the development and initial validation of a novel self-report resilience scale, which addresses gaps in the resilience measurement literature by assessing thoughts and behaviors that help promote resilience rather than traits, and simultaneously evaluating multiple factors previously associated with resilience. METHOD: Following consensus meetings focused on scale development, we conducted an online study (n = 1,864) of U.S. adults to develop and validate an initial version of the Mount Sinai Resilience Scale (MSRS). RESULTS: An exploratory factor analysis in a random 50% of the sample suggested a seven-factor solution; this solution was then generally supported by a follow-up confirmatory factor analysis in the remaining 50% of the sample. After removing poor-fitting items, a revised 24-item scale correlated in the expected directions with established measures of perceived resilience and resilience-related constructs (e.g., social support and optimism). CONCLUSIONS: Collectively, the results of this study provide initial support for the convergent and discriminant validity of the MSRS and describe its factor structure. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Resiliência Psicológica , Adulto , Humanos , Reprodutibilidade dos Testes , Saúde Mental , Otimismo , Análise Fatorial , Psicometria , Inquéritos e Questionários
3.
J Psychiatr Res ; 151: 546-553, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35636030

RESUMO

Loneliness was deemed a behavioral epidemic even prior to the COVID-19 pandemic. The COVID-19 pandemic and the subsequent social distancing policy measures have raised concerns about increased social isolation and loneliness, especially in vulnerable populations such as military veterans. However, little is known about the impact of the pandemic on longitudinal changes in loneliness in veterans, and potential protective psychosocial factors that may mitigate loneliness in this population. We analyzed data from the 2019-2020 National Health and Resilience in Veterans Study, which surveyed a nationally representative, prospective cohort of 3,078 US veterans before and 1-year into the pandemic. Prevalence, and risk and protective factors associated with changes in loneliness were examined. Results revealed that the prevalence of loneliness decreased over the study period-17.3% pre-pandemic to 15.9% peri-pandemic (p = 0.032). A total of 5.4% (n = 164) of veterans reported increased loneliness, 6.4% (n = 196) decreased loneliness, and 10.6% (n = 325) persistent loneliness during the pandemic. Multivariable logistic regression models indicated that not being married/partnered, and scoring lower on pre-pandemic measures of purpose in life and cognitive functioning were most strongly associated with increased loneliness. Pre-pandemic psychiatric disorder, unpartnered marital status, and pandemic-related social restriction and financial stressors were most strongly associated with persistent loneliness. Collectively, these results suggest that, contrary to concerns, the prevalence of loneliness subtly decreased one year into the pandemic. Veterans who are not partnered, have pre-existing psychiatric conditions, and endorse more COVID-related stressors may be at higher risk for experiencing loneliness during the pandemic. Interventions that promote social connectedness, as well as that target the aforementioned risk and protective factors, may help mitigate loneliness in veterans.


Assuntos
COVID-19 , Veteranos , COVID-19/epidemiologia , Estudos de Coortes , Humanos , Solidão/psicologia , Pandemias , Estudos Prospectivos , Veteranos/psicologia
6.
J Psychiatr Res ; 149: 168-176, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35278781

RESUMO

BACKGROUND: Dispositional gratitude has been implicated as a psychological characteristic that may modulate risk for mental health outcomes. Using a population-based sample of U.S. military veterans, this study evaluated the association between dispositional gratitude and the development of psychopathology and suicidal behaviors over a 7-year period. METHODS: A nationally representative sample of U.S. veterans was surveyed at four timepoints across seven years. Analyses were restricted to veterans without incident outcomes at baseline. Multivariable analyses were conducted to examine the relation between baseline levels of dispositional gratitude and risk of developing (a) major depressive disorder (MDD), generalized anxiety disorder (GAD), or posttraumatic stress disorder (PTSD); (b) suicidal ideation; and (c) suicide attempts. RESULTS: A total 9.6% of veterans developed MDD, GAD, and/or PTSD, 9.5% developed suicidal ideation, and 2.8% reported having attempted suicide over the 7-year follow-up period. Among veterans with high levels of dispositional gratitude, incidence was lower for MDD/GAD/PTSD (8.0%), suicidal ideation (6.8%), and suicide attempts (1.5%). Conversely, veterans with low dispositional gratitude were at substantially higher risk of developing MDD/GAD/PTSD (27.7%), suicidal ideation (33.6%), and suicide attempts (20.3%). CONCLUSIONS: High dispositional gratitude may help protect against the development of psychopathology and suicidal behaviors in U.S. military veterans, whereas low gratitude may increase risk of developing these outcomes. Collectively, these results support the potential utility of enhancing gratitude as part of primary prevention efforts for veterans, service members, and other populations at heightened risk for adverse mental health outcomes.


Assuntos
Transtorno Depressivo Maior , Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/psicologia , Humanos , Fatores de Risco , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Ideação Suicida , Tentativa de Suicídio/psicologia , Veteranos/psicologia
7.
J Affect Disord ; 303: 91-97, 2022 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-35101523

RESUMO

Suicide is a public health crisis with limited treatment options. Ketamine has demonstrated rapid and robust improvements in suicidal ideation (SI). The parent study for the secondary pilot analyses presented here was a double-blind, cross-over trial that found pretreatment with the mechanistic target of rapamycin complex 1 (mTORC1) prolonged the antidepressant effects of ketamine. Here we examined the effect of mTORC1 inhibition on ketamine's antisuicidal effects. Twenty patients in a major depressive episode were randomized to pretreatment with oral rapamycin (6 mg) or placebo prior to IV ketamine (0.5 mg/kg). We found ketamine administration resulted in significant improvements across all measures with the largest effect at 24 h with only the Beck Scale for Suicide remaining significant at the two-week follow-up. There were no significant main effects of pretreatment. While these analyses are pilot in nature and overall severity of SI was relatively low, the antisuicidal findings (no effect of rapamycin) being in contrast to the antidepressant effects (prolonged effect with rapamycin), suggest the rapid-acting antisuicidal and antidepressant effects of ketamine may be mechanistically distinct and the trajectories of response, recovery, and relapse may be independent. These findings provide additional evidence of ketamine's antisuicidal effects and highlight the importance of future studies that continue to examine potential differences in mechanisms and trajectory of outcomes.


Assuntos
Transtorno Depressivo Maior , Ketamina , Antidepressivos/efeitos adversos , Depressão/tratamento farmacológico , Transtorno Depressivo Maior/tratamento farmacológico , Humanos , Ketamina/efeitos adversos , Alvo Mecanístico do Complexo 1 de Rapamicina , Sirolimo/efeitos adversos , Ideação Suicida
8.
Transl Psychiatry ; 12(1): 65, 2022 02 17.
Artigo em Inglês | MEDLINE | ID: mdl-35177594

RESUMO

Posttraumatic stress disorder (PTSD) is a chronic and disabling psychiatric disorder prevalent in military veterans. Epigenetic mechanisms have been implicated in the etiology of PTSD, with DNA methylation being the most studied to identify novel molecular biomarkers associated with this disorder. We performed one of the largest single-sample epigenome-wide association studies (EWAS) of PTSD to date. Our sample included 1135 male European-American U.S. veterans who participated in the National Health and Resilience in Veterans Study (NHRVS). DNA was collected from saliva samples and the Illumina HumanMethylation EPIC BeadChip was used for the methylation analysis. PTSD was assessed using the PTSD Checklist. An EWAS was conducted using linear regression adjusted for age, cell-type proportions, first 10 principal components, and smoking status. After Bonferroni correction, we identified six genome-wide significant (GWS) CpG sites associated with past-month PTSD and three CpGs with lifetime PTSD (prange = 10-10-10-8). These CpG sites map to genes involved in immune function, transcription regulation, axonal guidance, cell signaling, and protein binding. Among these, SENP7, which is involved in transcription regulation and has been linked to risk-taking behavior and alcohol consumption in genome-wide association studies, replicated in an independent veteran cohort and was downregulated in medial orbitofrontal cortex of PTSD postmortem brain tissue. These findings suggest potential epigenetic biomarkers of PTSD that may help inform the pathophysiology of this disorder in veterans and other trauma-affected populations.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Metilação de DNA , Epigenoma , Estudo de Associação Genômica Ampla , Humanos , Masculino , Transtornos de Estresse Pós-Traumáticos/genética , Transtornos de Estresse Pós-Traumáticos/psicologia
9.
J Clin Psychiatry ; 83(2)2022 02 22.
Artigo em Inglês | MEDLINE | ID: mdl-35192748

RESUMO

Objective: The US military veteran population is changing rapidly, and contemporary data on the prevalence of DSM-5 posttraumatic stress disorder (PTSD) are lacking. The DSM-5 clarified PTSD Criterion A to delineate direct and indirect trauma exposures, but effects on the conditional probability of PTSD and functional impairment remain unknown. The objectives of this study were to provide contemporary estimates of PTSD prevalence and conditional probabilities in the US military veteran population, determine the likelihood of developing PTSD following direct versus indirect exposures to potentially traumatic events (PTEs), and examine the effects of direct and indirect PTEs and PTSD on functional impairment.Methods: Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study (NHRVS), an online survey of a nationally representative sample of US military veterans conducted from November 2019 to March 2020 (median completion date: November 21, 2019). Trauma exposures were assessed with the Life Events Checklist-5 and PTSD with the PTSD Checklist for DSM-5.Results: The weighted prevalence of lifetime PTSD was 9.4% (95% CI, 8.5%-10.3%) and of past-month PTSD was 5.0% (95% CI, 4.3%-5.7%). Direct PTEs were associated with increased odds of lifetime (odds ratio [OR] = 1.36; 95% CI, 1.30-1.42) and past-month PTSD (OR = 1.38; 95% CI, 1.31-1.46), but indirect PTEs were not (lifetime OR = 1.01; 95% CI, 1.00-1.03; past-month OR = 0.99; 95% CI, 0.97-1.00). Both PTSD (unstandardized B = 6.11, SE = 0.35) and direct PTEs (unstandardized B = 0.13, SE = 0.04), but not indirect PTEs, were significantly associated with functional impairment after adjustment for demographic and psychiatric variables.Conclusions: The prevalence of lifetime PTSD in US military veterans (9.4%) is slightly higher than 2016 estimates (6.9%-8.1%). Direct and indirect PTEs are prevalent in US military veterans, with only direct PTEs associated with higher conditional probability of past-month PTSD and greater functional impairment.


Assuntos
Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Manual Diagnóstico e Estatístico de Transtornos Mentais , Humanos , Prevalência , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Veteranos/psicologia
10.
Mol Psychiatry ; 27(4): 2225-2246, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35177824

RESUMO

Despite experiencing a significant trauma, only a subset of World Trade Center (WTC) rescue and recovery workers developed posttraumatic stress disorder (PTSD). Identification of biomarkers is critical to the development of targeted interventions for treating disaster responders and potentially preventing the development of PTSD in this population. Analysis of gene expression from these individuals can help in identifying biomarkers of PTSD. We established a well-phenotyped sample of 371 WTC responders, recruited from a longitudinal WTC responder cohort using stratified random sampling, by obtaining blood, self-reported and clinical interview data. Using bulk RNA-sequencing from whole blood, we examined the association between gene expression and WTC-related PTSD symptom severity on (i) highest lifetime Clinician-Administered PTSD Scale (CAPS) score, (ii) past-month CAPS score, and (iii) PTSD symptom dimensions using a 5-factor model of re-experiencing, avoidance, emotional numbing, dysphoric arousal and anxious arousal symptoms. We corrected for sex, age, genotype-derived principal components and surrogate variables. Finally, we performed a meta-analysis with existing PTSD studies (total N = 1016), using case/control status as the predictor and correcting for these variables. We identified 66 genes significantly associated with total highest lifetime CAPS score (FDR-corrected p < 0.05), and 31 genes associated with total past-month CAPS score. Our more granular analyses of PTSD symptom dimensions identified additional genes that did not reach statistical significance in our analyses with total CAPS scores. In particular, we identified 82 genes significantly associated with lifetime anxious arousal symptoms. Several genes significantly associated with multiple PTSD symptom dimensions and total lifetime CAPS score (SERPINA1, RPS6KA1, and STAT3) have been previously associated with PTSD. Geneset enrichment of these findings has identified pathways significant in metabolism, immune signaling, other psychiatric disorders, neurological signaling, and cellular structure. Our meta-analysis revealed 10 genes that reached genome-wide significance, all of which were downregulated in cases compared to controls (CIRBP, TMSB10, FCGRT, CLIC1, RPS6KB2, HNRNPUL1, ALDOA, NACA, ZNF429 and COPE). Additionally, cellular deconvolution highlighted an enrichment in CD4 T cells and eosinophils in responders with PTSD compared to controls. The distinction in significant genes between total lifetime CAPS score and the anxious arousal symptom dimension of PTSD highlights a potential biological difference in the mechanism underlying the heterogeneity of the PTSD phenotype. Future studies should be clear about methods used to analyze PTSD status, as phenotypes based on PTSD symptom dimensions may yield different gene sets than combined CAPS score analysis. Potential biomarkers implicated from our meta-analysis may help improve therapeutic target development for PTSD.


Assuntos
Ataques Terroristas de 11 de Setembro , Transtornos de Estresse Pós-Traumáticos , Ansiedade , Canais de Cloreto , Expressão Gênica , Humanos , Proteínas de Ligação a RNA , Autorrelato , Ataques Terroristas de 11 de Setembro/psicologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico
11.
Neuropsychopharmacology ; 47(8): 1574-1581, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35046508

RESUMO

This study tested the efficacy of repeated intravenous ketamine doses to reduce symptoms of posttraumatic stress disorder (PTSD). Veterans and service members with PTSD (n = 158) who failed previous antidepressant treatment were randomized to 8 infusions administered twice weekly of intravenous placebo (n = 54), low dose (0.2 mg/kg; n = 53) or standard dose (0.5 mg/kg; n = 51) ketamine. Participants were assessed at baseline, during treatment, and for 4 weeks after their last infusion. Primary analyses used mixed effects models. The primary outcome measure was the self-report PTSD Checklist for DSM-5 (PCL-5), and secondary outcome measures were the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) and the Montgomery Åsberg Depression Rating Scale (MADRS). There were no significant group-by-time interactions for PTSD symptoms measured by the PCL-5 or CAPS-5. The standard ketamine dose ameliorated depression measured by the MADRS significantly more than placebo. Ketamine produced dose-related dissociative and psychotomimetic effects, which returned to baseline within 2 h and were less pronounced with repeated administration. There was no evidence of differential treatment discontinuation by ketamine dose, consistent with good tolerability. This clinical trial failed to find a significant dose-related effect of ketamine on PTSD symptoms. Secondary analyses suggested that the standard dose exerted rapid antidepressant effects. Further studies are needed to determine the role of ketamine in PTSD treatment. ClinicalTrials.gov identifier: NCT02655692.


Assuntos
Ketamina , Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Antidepressivos/uso terapêutico , Método Duplo-Cego , Humanos , Ketamina/uso terapêutico , Transtornos de Estresse Pós-Traumáticos/tratamento farmacológico , Resultado do Tratamento
12.
Int Arch Occup Environ Health ; 95(6): 1279-1291, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35064838

RESUMO

OBJECTIVES: We sought to describe the course and correlates of psychological distress in frontline healthcare workers (FHCWs) during the COVID-19 pandemic in New York City (NYC). METHODS: A prospective cohort study of FHCWs at the Mount Sinai Hospital was conducted during the initial 2020 surge (T1) and 7 months later (T2). Psychological distress [i.e., positive screen for pandemic-related post-traumatic stress disorder (PTSD), major depressive disorder (MDD), and/or generalized anxiety disorder (GAD)], occupational and personal exposures to COVID-19, coping strategies, and psychosocial characteristics were assessed. Four courses of psychological distress response were identified: no/minimal, remitted, persistent, and new-onset. Multinomial logistic regression and relative importance analyses were conducted to identify factors associated with courses of distress. RESULTS: Of 786 FHCWs, 126 (16.0%) FHCWs had persistent distress; 150 (19.1%) remitted distress; 35 (4.5%) new-onset distress; and 475 (60.4%) no/minimal distress. Relative to FHCWs with no/minimal distress, those with persistent distress reported greater relationship worries [19.8% relative variance explained (RVE)], pre-pandemic burnout (18.7% RVE), lower dispositional optimism (9.8% RVE), less emotional support (8.6% RVE), and feeling less valued by hospital leadership (8.4% RVE). Relative to FHCWs with remitted symptoms, those with persistent distress reported less emotional support (29.7% RVE), fewer years in practice (28.3% RVE), and psychiatric history (23.6% RVE). CONCLUSIONS: One-fifth of FHCWs in our study experienced psychological distress 7 months following the COVID-19 surge in NYC. Pandemic-related worries, pre-pandemic burnout, emotional support, and feeling valued by leaders were linked to persistent distress. Implications for prevention, treatment, and organizational efforts to mitigate distress in FHCWs are discussed.


Assuntos
Esgotamento Profissional , COVID-19 , Transtorno Depressivo Maior , Esgotamento Profissional/epidemiologia , Esgotamento Profissional/psicologia , COVID-19/epidemiologia , Pessoal de Saúde/psicologia , Humanos , Cidade de Nova Iorque/epidemiologia , Pandemias , Estudos Prospectivos , SARS-CoV-2
13.
Am J Geriatr Psychiatry ; 30(3): 297-310, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34417085

RESUMO

OBJECTIVE: This study aimed to characterize the current prevalence of loneliness, and the relation between loneliness severity and mental and physical health conditions, suicidality, and functional measures in a predominantly older sample of U.S. military veterans. METHODS: This cross-sectional study used data from the National Health and Resilience in Veterans Study, which surveyed a nationally representative sample of U.S. veterans (N = 4,069; mean age = 62) from November 2019 through March 2020. Veterans were classified into one of 3 groups based on their current level of loneliness (hardly ever, sometimes, often) on an adapted version of the Revised UCLA Loneliness Scale. A comprehensive range of mental and physical health, and functioning variables were assessed using valid and reliable self-report assessments. RESULTS: A total of 56.9% of veterans endorsed feeling lonely sometimes (37.2%) or often (19.7%). Loneliness severity was independently associated with a range of mental health (odds ratios [ORs] = 1.21-33.30), physical health (ORs = 1.21-6.80), and functional difficulties (d's = 0.09-0.59). Relative to hardly ever feeling lonely, feeling lonely often or sometimes was associated with a more than 12- and three-fold greater likelihood of current suicidal ideation (29.0% versus 7.3% versus 1.5%), even after adjustment for sociodemographic, military, and psychiatric risk factors. CONCLUSIONS: Loneliness is highly prevalent in U.S. military veterans, with more than half endorsing feeling lonely sometimes or often, and 1-of-5 reporting feeling lonely often. Loneliness severity was independently associated with a broad range of mental and physical health and functional measures, ias well as suicidal ideation. Results underscore the importance of loneliness as a transdiagnostic prevention and intervention target in the U.S. veteran population.


Assuntos
Veteranos , Idoso , Estudos Transversais , Humanos , Solidão , Saúde Mental , Ideação Suicida , Veteranos/psicologia
14.
J Affect Disord ; 296: 35-40, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34587547

RESUMO

BACKGROUND: The COVID-19 pandemic has led to significant mental health consequences for frontline health care workers (FHCWs). However, no known study has examined the prevalence, determinants, or correlates of posttraumatic growth (PTG) in this population. METHODS: Data were analyzed from a prospective cohort of FHCWs at an urban tertiary care hospital in New York City (NYC). Assessments were conducted during the spring 2020 pandemic peak (Wave 1) and seven months later (Wave 2). Multivariable logistic regression analyses were conducted to identify Wave 1 sociodemographic, occupational, and psychosocial factors associated with PTG at Wave 2, and the association between aspects of PTG with burnout and pandemic-related PTSD symptoms at Wave 2. RESULTS: A total 76.8% of FHCWs endorsed moderate or greater PTG; the most prevalent domains were increased appreciation of life (67.0%), improved relationships (48.7%), and greater personal strength (44.1%). Non-White race/ethnicity, greater levels of positive emotions, pandemic-related PTSD symptoms, dispositional gratitude, and feelings of inspiration were independently associated with PTG. At Wave 2, endorsement of spiritual growth during the pandemic was associated with 52% and 44% lower odds of screening positive for pandemic-related PTSD symptoms and burnout, respectively; greater improvement in relationships was associated with 36% lower odds of screening positive for burnout. LIMITATIONS: Single institution study and use of self-report instruments. CONCLUSIONS: Nearly 4-of-5 FHCWs report pandemic-related PTG, driven largely by salutogenic factors assessed during the pandemic surge. Interventions to bolster these factors may help promote PTG and mitigate risk for burnout and pandemic-related PTSD symptoms in this population.


Assuntos
COVID-19 , Crescimento Psicológico Pós-Traumático , Transtornos de Estresse Pós-Traumáticos , Pessoal de Saúde , Humanos , Pandemias , Estudos Prospectivos , SARS-CoV-2 , Transtornos de Estresse Pós-Traumáticos/epidemiologia
15.
J Sleep Res ; 31(1): e13447, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34328228

RESUMO

Sleep disturbance is a risk factor for future suicidal behaviours (e.g. suicidal ideation, suicide attempt, death by suicide), and military veterans are at increased risk for both poor sleep and death by suicide relative to civilians. The purpose of this study was to evaluate whether self-reported sleep quality was associated with risk of new-onset suicidal ideation in a 7-year prospective nationally representative cohort study of US military veterans. Multivariable logistic regression analyses were conducted to identify the relation between self-rated sleep quality and incident suicidal ideation in 2,059 veterans without current suicidal ideation or lifetime suicide attempt history at baseline. Relative importance analyses were then conducted to identify the relative variance explained by sleep quality and other significant determinants of incident suicidal ideation. A total of 169 (weighted 8.9%, 95% confidence interval =7.7%-10.3%) veterans developed suicidal ideation over the 7-year study period. Poor self-rated sleep quality was associated with a more than 60% greater likelihood of developing suicidal ideation (relative risk ratio = 1.62, 95% confidence interval = 1.11-2.36), even after adjustment for well-known suicide risk factors such as major depressive disorder. Relative importance analysis revealed that poor self-rated sleep quality accounted for 44.0% of the explained variance in predicting incident suicidal ideation. These results underscore the importance of assessing, monitoring and treating sleep difficulties as part of suicide prevention efforts in military veterans.


Assuntos
Transtorno Depressivo Maior , Veteranos , Estudos de Coortes , Humanos , Estudos Prospectivos , Fatores de Risco , Qualidade do Sono , Ideação Suicida
16.
Mol Psychiatry ; 27(2): 1068-1074, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34725455

RESUMO

Polygenic risk scores (PRS) may help inform the etiology of suicidal thoughts and behaviors. In this study, we evaluated whether a suicidality PRS derived from a large genome-wide association study (GWAS) of suicidality from the UK Biobank (N = 122,935) predicted suicidal ideation (SI) in a 7-year population-based, prospective cohort of European-American US veterans (N = 1326). Results revealed that 8.8% (n = 115) of veterans developed new-onset SI, 4.0% (n = 52) had chronic SI, 3.4% (n = 31) had remitted SI, and 83.8% (n = 1128) denied SI over the study period. Suicidality PRSstandardized was positively associated with chronic SI (relative risk ratio [RRR] = 4.54, 95% confidence interval [CI] = 1.01-20.48) and new-onset SI (RRR = 2.97, 95%CI = 1.22-7.23), and negatively associated with remitted SI (RRR = 0.12, 95% CI = 0.02-0.60). Among veterans with higher suicidality PRS, those with higher baseline dispositional optimism had a lower likelihood of chronic SI (RRR = 0.67, 95% CI = 0.49-0.91) and higher likelihood of remitted SI (RRR = 1.98, 95% CI = 1.18-3.31). Among veterans with higher suicidality PRS, those with higher baseline levels of social support were less likely to develop new-onset SI (RRR = 0.95, 95% CI = 0.92-0.99). These interaction effects were enriched for genes implicated in neuron recognition and development, while the PRS main effect was enriched for genes involved in mannosylation. Collectively, results of this study suggest that suicidality PRS is linked prospectively to symptomatic courses of SI, and that dispositional optimism and social support moderate these associations. Interventions targeting these modifiable psychosocial factors may help mitigate risk of SI in veterans with high polygenic risk for suicidality.


Assuntos
Ideação Suicida , Veteranos , Estudos de Coortes , Estudo de Associação Genômica Ampla , Humanos , Estudos Prospectivos , Veteranos/psicologia
17.
Biol Psychiatry ; 91(7): 637-646, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-34955171

RESUMO

BACKGROUND: Posttraumatic stress disorder (PTSD) develops consequent to complex gene-by-environment interactions beyond the precipitating trauma. To date, however, no known study has used a prospective design to examine how polygenic risk scores (PRSs) interact with social-environmental factors such as attachment style to predict PTSD development. METHODS: PRSs were derived from a genome-wide association study of PTSD symptoms (N = 186,689; Million Veteran Program cohort). We evaluated combined effects of PRS and attachment style in predicting incident PTSD in a 7-year, nationally representative cohort of trauma-exposed, European-American U.S. military veterans without PTSD (N = 1083). We also conducted multivariate gene-by-environment interaction and drug repositioning analyses to identify loci that interact with multiple environmental factors and potential pharmacotherapies that may be repurposed for this disorder. RESULTS: Veterans with higher PTSD PRS were more likely to have an incident-positive screen for PTSD over 7 years. A gene-by-environment interaction was also observed, such that higher PRS only predicted incident PTSD in veterans with an insecure attachment style and not those with a secure attachment style. At an individual locus level, the strongest gene-by-environment interaction was observed for the rs4702 variant of the FURIN gene with cumulative lifetime trauma burden. Drug repositioning revealed that genes implicated in PRS are perturbated by the drug doxylamine. CONCLUSIONS: Attachment style moderates polygenic risk for the development of PTSD in European-American veterans. These findings may inform PTSD prevention and treatment for veterans with high polygenic risk for PTSD and suggest a potential pharmacotherapeutic target for risk genes moderated by social-environmental factors.


Assuntos
Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Estudo de Associação Genômica Ampla , Humanos , Herança Multifatorial/genética , Estudos Prospectivos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/genética
18.
Npj Ment Health Res ; 1(1): 4, 2022 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-38609471

RESUMO

While social support has been linked to better health, most research has focused on the receipt of social support. In this study, we evaluated associations between provided support and mental health in a nationally representative cohort of 4069 US veterans. The majority (60-72%) of veterans reported providing support on a consistent basis. Veterans who scored higher on certain aspects of personality (i.e., agreeableness, conscientiousness, and extraversion) and received greater support were more likely to provide support. Further, each standard deviation increase in provided support was independently associated with 22-32% reduced odds of internalizing psychiatric disorders and suicidal ideation, and veterans who scored higher on both provided and received support had 3.5- to 14-fold lower odds of these outcomes relative to those with high received support but low provided support. Results suggest that interventions to promote the provision of support may help mitigate risk for adverse mental health outcomes in veterans.

19.
Chronic Stress (Thousand Oaks) ; 5: 24705470211053850, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34761141

RESUMO

Background: The purpose of this study was to examine factors associated with psychological resilience in a nationally representative sample of West Point graduates. Aims: The aims of this study were to (a) employ a dimensional approach to operationalizing psychological resilience in a trauma-exposed population that had been highly trained and educated in persisting in the face of stress, was previously unstudied, and in which we could examine correlates of resilience, (b) identify key psychosocial factors, character traits, health variables, military experiences, and coping strategies as potential correlates of psychological resilience; and (c) examine whether reported gender moderated any of these associations in this population. Methods: A nationally representative sample of 1342 West Point graduates after gender integration from classes 1980 to 2011 were surveyed. Psychological resilience was operationalized using a discrepancy-based approach in which a measure of composite psychological distress (current posttraumatic stress disorder, generalized anxiety and depression symptoms) was regressed on measures of cumulative trauma burden. A multivariable linear regression model was then employed to identify factors that were independently associated with psychological resilience scores. Results: Purpose in life (29.8% of relative variance explained [RVE]), fewer perceived negative experiences in the military (20.6% RVE), social support (9.6% RVE), and grit (9.5% RVE) were the strongest correlates of psychological resilience scores for both women and men. Time in service was positively associated with resilience in women only. Conclusion: This study identifies key correlates of psychological resilience in West Point graduates, individuals who are highly trained to persevere in the face of stress and then were trauma-exposed. Most of these factors are modifiable and can be targeted in stress prevention and treatment interventions, especially for high-stress professions such as the military, frontline health care providers, and first responders.

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