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1.
Res Child Adolesc Psychopathol ; 52(6): 851-863, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38214850

RESUMO

Though sexual minority adolescents face a wide array of deleterious stressors, few studies have examined the role of specific types of stress exposure (i.e., chronic vs. episodic, interpersonal vs. non-interpersonal) on mental health disparities. This study utilizes a contextual threat-based assessment to (a) compare levels of stress exposure types between sexual minority and non-sexual minority adolescents, and (b) examine stress type as a mediator between sexual orientation and two outcomes: depressive symptoms and emotion dysregulation. Data comes from a longitudinal sample (14-17 years-old, N = 241; 17.6% sexual minority; 54% assigned female at birth; 73.9% White), with two time-points (T1 and T2) utilized. Sexual minority adolescents reported higher chronic interpersonal stress, but no differences in non-interpersonal chronic or episodic stress, relative to non-sexual minority adolescents. Chronic interpersonal stress exposure mediated the link between membership in an oppressed group (i.e., sexual minority teens) and the primary outcomes (emotion dysregulation and depressive symptoms) at both T1 and T2. Findings demonstrate the utility of contextual threat-based assessments within sexual minority research.


Assuntos
Depressão , Disparidades nos Níveis de Saúde , Minorias Sexuais e de Gênero , Estresse Psicológico , Humanos , Adolescente , Feminino , Minorias Sexuais e de Gênero/psicologia , Minorias Sexuais e de Gênero/estatística & dados numéricos , Masculino , Estresse Psicológico/psicologia , Depressão/psicologia , Depressão/epidemiologia , Estudos Longitudinais , Regulação Emocional , Saúde Mental
2.
Anxiety Stress Coping ; : 1-14, 2023 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-37840536

RESUMO

BACKGROUND AND OBJECTIVES: Increasing research underscores low positive emotion (PE) as a vital component of depression risk in adolescence. Theory also suggests that PE contributes to adaptive coping. However, it is unclear whether naturalistic experiences of emotions contribute to long-term depression risk, or whether daily PE levels equip adolescents to cope with later naturalistic stressors, reducing risk for depression. The current study examines whether PE (and negative emotion [NE]) assessed via ecological momentary assessment (EMA) (a) predict prospective increases in depression, and (b) moderate the association between later life stressors and depression. DESIGN: Longitudinal study of community-recruited adolescents, with EMA at baseline. METHOD: Adolescents (n = 232) completed contextual threat life stress interviews, interview and self-report measures of depression at baseline and 1.5 year follow-up. At baseline, they completed a seven-day EMA of emotion. RESULTS: Preregistered analyses showed that daily NE, but not PE, predicted increased depression over time and moderated the association between interpersonal episodic stress and self-reported depression. CONCLUSIONS: Results did not support daily PE as a buffer against depressogenic effects of life stress, but point to daily NE as a marker of depression risk.

3.
Dev Psychopathol ; : 1-13, 2023 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-37589100

RESUMO

Research links life stressors, including acute, chronic, and early life stress, to the development of ruminative brooding. However, singular forms of life stress rarely occur in isolation, as adolescents typically encounter stressors that vary on important dimensions (e.g., types, timings, quantities) across development. The current study employs latent profile analysis (LPA) to identify natural clusters of life stress that, over time, may be differently associated with ruminative brooding. Evaluations of episodic, chronic, and early life stress were conducted with community-recruited mid-adolescents (N = 241, Mage = 15.90 years, 53% female) and their parents using the UCLA Life Stress Interview and lifetime adversity portions of the Youth Life Stress Interview. Analyses identified four distinct patterns: low stress, high peer stress, moderate home / family stress, and multifaceted / high school stress. Adolescents in the high peer stress and moderate home / family stress profiles were at highest risk for developing a brooding style over time. Despite high overall levels of stress, teens in the multifaceted / high school stress profile were at not at elevated risk for developing a brooding style. Findings demonstrate the utility of person-centered approaches to identify patterns of stress exposure that heighten risk for brooding over time.

4.
J Psychopathol Clin Sci ; 132(8): 1007-1018, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37471024

RESUMO

The ability to make fine-grained distinctions between discrete negative emotions-termed negative emotion differentiation (NED)-is important for emotion regulation and psychological well-being. Posttraumatic stress disorder (PTSD) is associated with elevated trauma-related negative emotions (e.g., fear, anger, guilt, shame) and self-reported difficulty identifying feelings, suggesting that low NED may be a feature of PTSD. PTSD is also characterized by overreliance on avoidance as an emotion regulation strategy-a characteristic that could be influenced by low NED. Here, we examined whether NED is reduced in PTSD and the role NED plays in the association between trauma-related avoidance and other PTSD symptoms (traumatic reexperiencing, negative alterations in cognition and mood, alterations in arousal and reactivity). Hypotheses were tested using 3 days of ecological momentary assessment (up to 17 prompts per day) in 80 trauma-exposed participants (39 with PTSD, 41 without PTSD; total completed surveys = 2,158). NED was reduced and self-reported difficulty identifying feelings was elevated in those with PTSD, and both predicted PTSD severity (Clinician-Administered PTSD Scale-5 score) and momentary PTSD symptoms. Furthermore, low NED, but not difficulty identifying feelings, predicted a stronger association between momentary trauma-related avoidance and PTSD symptoms. Results suggest that NED is involved in the emotional processing of trauma by decreasing the negative impact of avoidance behavior on other PTSD symptoms. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/complicações , Transtornos de Estresse Pós-Traumáticos/psicologia , Emoções/fisiologia , Medo , Ira , Afeto
5.
Psychol Bull ; 149(5-6): 330-369, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37261747

RESUMO

Stress generation theory initially posited that depression elevates risk for some stressful events (i.e., dependent events) but not others (i.e., independent events). This preregistered meta-analytic review examined whether stress generation occurs transdiagnostically by examining 95 longitudinal studies with 38,228 participants (537 total effect sizes) from over 30 years of research. Our multilevel meta-analyses found evidence of stress generation across a broad range of psychopathology, as evidenced by significantly larger prospective effects for dependent (overall psychopathology: r = .23) than independent (overall psychopathology: r = .10) stress. We also identified unique patterns of effects across specific types of psychopathology. For example, effects were larger for depression than anxiety. Furthermore, effects were sometimes larger in studies with younger participants, shorter time lags between assessments, checklist measures of stress, and for interpersonal stressors. Finally, a multilevel meta-analytic structural equation model suggested that dependent stress exacerbates psychopathology symptoms over time (ß = .04), possibly contributing to chronicity. Interventions targeting the prevention of stress generation may mitigate chronic psychopathology. Conclusions of this study are limited by the predominance of depression effect sizes in the literature and our review of only English language articles. On the other hand, the findings are strengthened by rigorous inclusion criteria, lack of publication bias, and absence of moderating effects by publication year. The latter underscores the replicability of the stress generation effect over the last 30 years. Taken together, the review provides robust evidence that stress generation is a cross-diagnostic phenomenon that contributes to a vicious cycle of increasing stress and psychopathology. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Transtornos de Ansiedade , Ansiedade , Humanos
6.
Clin Psychol Rev ; 103: 102299, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37307790

RESUMO

The stress generation hypothesis suggests that some individuals contribute more than others to the occurrence of dependent (self-generated), but not independent (fateful), stressful life events. This phenomenon is commonly studied in relation to psychiatric disorders, but effects are also driven by underlying psychological processes that extend beyond the boundaries of DSM-defined entities. This meta-analytic review of modifiable risk and protective factors for stress generation synthesizes findings from 70 studies with 39,693 participants (483 total effect sizes) from over 30 years of research. Findings revealed a range of risk factors that prospectively predict dependent stress with small-to-moderate meta-analytic effects (rs = 0.10-0.26). Negligible to small effects were found for independent stress (rs = 0.03-0.12), and, in a critical test for stress generation, most effects were significantly stronger for dependent compared to independent stress (ßs = 0.04-0.15). Moderation analyses suggest effects of maladaptive interpersonal emotion regulation behaviors and repetitive negative thinking are stronger for interpersonal (versus non-interpersonal) stress; effects of repetitive negative thinking and excessive standards for self may be inflated by overreliance on self-report measures that fail to isolate psychological distress from objective experience. Findings have key implications for advancing stress generation theory and informing targets for intervention.


Assuntos
Transtornos Mentais , Estresse Psicológico , Humanos , Estresse Psicológico/psicologia , Fatores de Proteção , Transtornos Mentais/psicologia , Inquéritos e Questionários , Autorrelato , Fatores de Risco
7.
Psychol Assess ; 34(10): 978-984, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35925739

RESUMO

Sexual minority (e.g., gay, lesbian, bisexual) people are at increased risk for suicidal thoughts and behaviors compared to their heterosexual peers. The interpersonal theory of suicide proposes that perceived burdensomeness and thwarted belongingness are central to the desire to die, and both are associated with suicidal ideation in sexual minority samples. The Interpersonal Needs Questionnaire (INQ) was developed to measure these risk factors and has become the most commonly used measure. However, it is unknown whether the INQ demonstrates similar measurement properties across subgroups of sexual minority people. Therefore, the goal of this study was to examine whether the 15-item version of the INQ exhibited measurement invariance (MI) across sexual orientation (gay/lesbian vs. bi +), gender identity (cisgender men vs. cisgender women vs. transgender/gender diverse individuals), and race/ethnicity (non-Latinx White individuals vs. people of color) in a sample of 792 sexual minority young adults (ages 18-29). A series of multigroup measurement invariance models indicated that the INQ-15 met strict invariance (i.e., equal factor loadings, item intercepts, and residual variances) across all three dimensions of identity. This indicates that it can be used and compared across diverse samples of sexual minority young adults. Results also indicated that perceived burdensomeness was greater for transgender/gender diverse individuals than for cisgender men and women, and that perceived burdensomeness and thwarted belongingness were greater for people of color than for non-Latinx White individuals. In contrast, gay/lesbian and bi + individuals did not differ. Additional research is needed to understand the factors that account for these group differences. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Homossexualidade Feminina , Minorias Sexuais e de Gênero , Adolescente , Adulto , Etnicidade , Feminino , Identidade de Gênero , Humanos , Relações Interpessoais , Masculino , Ideação Suicida , Inquéritos e Questionários , Adulto Jovem
8.
Res Child Adolesc Psychopathol ; 49(10): 1319-1331, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33914186

RESUMO

Rumination is correlated with diverse types of internalizing problems, but the extent to which it relates to a higher-order internalizing spectrum versus disorder-specific pathology is unclear. Using a quantitative model of the internalizing dimension, we compared the strength of transdiagnostic versus diagnosis-specific pathways from brooding-the most depressogenic component of rumination-to major depressive disorder (MDD) in adolescents. Community-recruited mid-adolescents (N = 241, Mage = 15.90 years, 53% female) completed semi-structured interviews of anxiety and depressive conditions and a self-report brooding measure. Confirmatory factor analysis revealed good fit for a one-factor model of internalizing conditions. Results revealed a large, significant factor correlation between brooding and the internalizing factor (r = 0.55), with some evidence for a more modest specific link between brooding and the unique component of the MDD diagnosis (r = 0.17; approximately one-third as large as the transdiagnostic pathway). These cross-sectional associations were generally consistent across two assessment waves separated by 19 months. We concluded that brooding is better conceptualized as a common characteristic of all internalizing problems in adolescence, rather than a specific feature of MDD. Preregistered hypotheses, data analysis code, and correlation matrices for this study are posted at https://osf.io/dax7u/ .


Assuntos
Transtorno Depressivo Maior , Adolescente , Ansiedade/diagnóstico , Estudos Transversais , Transtorno Depressivo Maior/diagnóstico , Feminino , Humanos , Análise de Classes Latentes , Masculino , Psicopatologia
9.
Dev Psychopathol ; 33(4): 1264-1278, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-32684200

RESUMO

Childhood adversity appears to sensitize youth to stress, increasing depression risk following stressful life events occurring throughout the lifespan. Some evidence suggests hypothalamic-pituitary-adrenal (HPA) axis-related and serotonergic genetic variation moderates this effect, in a "gene-by-environment-by-environment" interaction (G × E × E). However, prior research has tested single genetic variants, limiting power. The current study uses a multilocus genetic profile score (MGPS) approach to capture polygenic risk relevant to HPA axis and serotonergic functioning. Adolescents (N = 241, Mage = 15.90) completed contextual-threat-based interviews assessing childhood adversity and acute life events, and diagnostic interviews assessing depression. Established MGPSs indexed genetic variation linked to HPA axis (10 single nucleotide polymorphisms [SNPs]) and serotonergic (five SNPs) functioning. Results showed significant MGPS × Childhood Adversity × Recent Life Stress interactions predicting depression for both HPA axis and serotonergic MGPSs, with both risk scores predicting stronger Childhood Adversity × Recent Stress interactions. Serotonergic genetic risk specifically predicted sensitization to major interpersonal stressors. The serotonergic MGPS G × E × E was re-tested in an independent replication sample of early adolescent girls, with comparable results. Findings support the notion that genetic variation linked to these two neurobiological symptoms alters stress sensitization, and that gene-by-environment (G × E) interactions may be qualified by environmental exposures occurring at different points in development.


Assuntos
Experiências Adversas da Infância , Sistema Hipotálamo-Hipofisário , Adolescente , Depressão/genética , Feminino , Humanos , Hidrocortisona , Sistema Hipófise-Suprarrenal , Estresse Psicológico/genética
10.
Pers Individ Dif ; 1522020 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-32863504

RESUMO

Negative emotion differentiation (NED) is the ability to precisely discern negatively-valenced emotional states. Low NED has been linked to numerous negative outcomes. However, little is known about the conditions under which individual differences in NED emerge, particularly during adolescence, a potentially important developmental stage. We examined associations between NED (assessed using intraclass correlations between negative emotion [NE] ratings collected via intensive longitudinal methods), parental variables, and age. Adolescents (N=233, M age=15.90, 53% female) and their parents completed interview measures of depression and self-report questionnaires; adolescents then completed a seven-day ecological momentary assessment. Lower NED was associated with greater parental depression, greater authoritarian parenting style, and lower parental attachment security. Age was negatively and linearly associated with NED. Results held controlling for mean NE and adolescent depression, although authoritarian parenting was non-significant controlling for other developmental variables. Findings suggest healthy parent-child relationships may relate to adolescents' ability to perceive NEs with nuance.

11.
Emotion ; 20(6): 927-938, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31246045

RESUMO

Negative emotion differentiation (NED) refers to the ability to identify and label discrete negative emotions. Low NED has been previously linked to depression and other indices of low psychological well-being. However, this construct has rarely been explored during adolescence, a time of escalating depression risk, or examined in the context of naturalistic stressors. Further, the association between NED and depression has never been tested longitudinally. We propose a diathesis-stress model wherein low NED amplifies the association between stressful life events (SLEs) and depression. A sample of 233 community-recruited midadolescents (Mage 15.90 years, 54% female) completed diagnostic interviews and reported on mood and daily stressors 4 times per day for 7 days. SLEs were assessed using a semistructured interview with diagnosis-blind team coding based on the contextual threat method. Follow-up interviews were conducted 1.5 years after baseline. Low NED was correlated with depression but did not predict prospective changes in depression as a main effect. Confirming predictions and supporting a diathesis-stress model, low NED predicted (a) within-subjects associations between daily hassles and momentary depressed mood, (b) between-subjects associations between SLE severity and depression, and (c) prospective associations between SLE severity and increases in depression at follow-up. Results were specific to negative (vs. positive) emotion differentiation. Results suggest that low NED is primarily depressogenic in the context of high stress exposure. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Assuntos
Depressão/psicologia , Emoções/fisiologia , Estresse Psicológico/psicologia , Adolescente , Feminino , Humanos , Masculino , Estudos Prospectivos
12.
Dev Psychopathol ; 32(3): 865-878, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31588881

RESUMO

Research suggests that childhood adversity (CA) is associated with a wide range of repercussions, including an increased likelihood of interpersonal stress generation. This may be particularly true following interpersonal childhood adversity (ICA) and for youth with high hypothalamic-pituitary-adrenal (HPA) axis-related genetic risk. In the current study, we applied a multilocus genetic profile score (MGPS) approach to measuring HPA axis-related genetic variation and examined its interaction with ICA to predict interpersonal stress generation in a sample of adolescents aged 14-17 (N = 241, Caucasian subsample n = 192). MGPSs were computed using 10 single nucleotide polymorphisms from HPA axis-related genes (CRHR1, NRC31, NRC32, and FKBP5). ICA significantly predicted greater adolescent interpersonal dependent stress. Additionally, MGPS predicted a stronger association between ICA and interpersonal dependent (but not independent or noninterpersonal dependent) stress. No gene-environment interaction (G×E) effects were found for noninterpersonal CA and MGPS in predicting adolescent interpersonal dependent stress. Effects remained after controlling for current depressive symptoms and following stratification by race. Findings extend existing G×E research on stress generation to HPA axis-related genetic variation and demonstrate effects specific to the interpersonal domain.


Assuntos
Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal , Adolescente , Criança , Interação Gene-Ambiente , Humanos , Hidrocortisona , Polimorfismo de Nucleotídeo Único , Estresse Psicológico/genética
13.
Clin Psychol Rev ; 74: 101780, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31739123

RESUMO

Rumination has been conceptualized as a stable, trait-level response style involving repetitive and passive focus on the symptoms of distress and the possible causes and consequences of those symptoms. This theoretical review examines developmental risk factors of ruminative response style, incorporating a developmental psychopathology perspective. A model integrating these developmental factors within a conceptual framework is proposed, wherein risk factors for distress (i.e., temperamental negative affectivity, stressful environments, parenting, and genetic vulnerability) lead to engagement in rumination. We propose that when rumination is well-practiced, it will consolidate into a trait-like response style, especially among adolescents who experience cognitive control deficits. Reciprocal relationships and moderators that may contribute to the formation of a ruminative response style are also included. To understand how these factors converge and influence the formation of ruminative response styles, we review patterns of stability and change in physical and cognitive development to demonstrate that individual differences in rumination may emerge and consolidate into enduring, trait-level response styles during early adolescence.


Assuntos
Desenvolvimento Humano/fisiologia , Modelos Psicológicos , Personalidade/fisiologia , Angústia Psicológica , Ruminação Cognitiva/fisiologia , Humanos
15.
J Psychiatr Res ; 117: 55-61, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31279244

RESUMO

Serotonin-linked genetic risk and stressful life event (SLE) interaction research has been criticized for using single genetic variants with inconsistent replicability. A recent study showed that a multilocus genetic profile score (MGPS) capturing additive risk from five serotonin-linked polymorphisms moderated the association between major interpersonal SLEs and depression, but no subsequent replication attempts have been reported. Moreover, major interpersonal SLEs have been suggested as "candidate environments" for this MGPS, but it has never been demonstrated that gene-environment interactions (G × Es) for major interpersonal SLEs are significantly stronger than for other contexts. Adolescents (N = 241) completed contextual-threat life stress interviews and clinical interviews assessing depressive symptoms, and provided DNA. MGPS intensified the major interpersonal stress-depression association; the interaction accounted for 4% of depressive symptom variance. Genetic moderation was statistically unique to major interpersonal stress versus other environments. Extending previous findings, results support an MGPS approach and underscore the cruciality of the G × E candidate environment.


Assuntos
Depressão/etiologia , Depressão/genética , Interação Gene-Ambiente , Variação Genética/genética , Relações Interpessoais , Tipagem de Sequências Multilocus , Serotonina/genética , Estresse Psicológico/complicações , Adolescente , Feminino , Humanos , Masculino
16.
Psychoneuroendocrinology ; 100: 156-163, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30340064

RESUMO

Chronic stress exposure has been shown to alter hypothalamic-pituitary-adrenal (HPA) axis functioning, which may mediate its effects on psychopathology and negative health outcomes. The nature of the chronic stress-HPA axis dysregulation is unclear and individuals likely vary in the extent to and manner in which indices of HPA axis regulation, such as diurnal cortisol slope, are influenced by chronic stress. We examined whether HPA-axis-linked genetic variation moderates the association between chronic stress and diurnal cortisol slope, and potential implications for mood and fatigue (possible manifestations of negative clinical outcomes). 211 adolescents (M age 15.89, 54.5% female) completed chronic stress interviews and provided DNA samples. Participants then provided saliva samples at waking and 12 h post-waking for two consecutive weekdays. HPA-axis genetic variation was calculated using a multilocus genetic profile score (MGPS) approach, using ten SNPs from CRHR1, NR3C1, NR3C2, and FKBP5 to generate an additive score of HPA-axis-linked genetic risk. Neither chronic stress nor MGPS directly predicted diurnal slope, but MGPS moderated the association between chronic stress and diurnal slope, with stress predicting a high waking cortisol followed by steep slope among youth with low but not high MGPS scores. MGPS also interacted with chronic stress to predict both negative affect and fatigue, and moderated the indirect effect of chronic stress on mood and fatigue via diurnal slope. Results suggest that diurnal cortisol regulation may be one mechanism by which genetic risk intensifies the association between chronic stress and negative outcomes.


Assuntos
Afeto/fisiologia , Fadiga , Variação Genética/fisiologia , Hidrocortisona/metabolismo , Estresse Psicológico , Adolescente , Esgotamento Psicológico/epidemiologia , Esgotamento Psicológico/genética , Esgotamento Psicológico/metabolismo , Esgotamento Psicológico/fisiopatologia , Doença Crônica , Ritmo Circadiano/fisiologia , Estudos de Coortes , Fadiga/epidemiologia , Fadiga/genética , Fadiga/metabolismo , Fadiga/fisiopatologia , Feminino , Loci Gênicos , Humanos , Sistema Hipotálamo-Hipofisário/metabolismo , Sistema Hipotálamo-Hipofisário/fisiopatologia , Entrevistas como Assunto , Masculino , Herança Multifatorial/genética , Tipagem de Sequências Multilocus , Sistema Hipófise-Suprarrenal/metabolismo , Sistema Hipófise-Suprarrenal/fisiopatologia , Polimorfismo de Nucleotídeo Único , Saliva/metabolismo , Estresse Psicológico/epidemiologia , Estresse Psicológico/genética , Estresse Psicológico/metabolismo , Estresse Psicológico/fisiopatologia
17.
J Fam Psychol ; 33(1): 44-53, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30489130

RESUMO

Research exploring the mechanisms by which specific genes contribute to overall marital quality is still in its beginning stages; however, one mechanism may be the link between the oxytocin receptor gene (OXTR) and behavioral deficits relevant to social support-a critical determinant of marital quality. Using 79 different-sex married couples (N = 158), we found that genotypic variation in single nucleotide polymorphisms (SNPs) on wives' and husbands' OXTR variously associated with husbands' and wives' support provision and receipt behaviors in social support discussions. We also found significant indirect effects of husbands' TT genotype for OXTR SNP rs1042778 on lower marital quality for husbands and wives by way of the husband's more negative evaluation of his wife's responsiveness when he was the target for support. However, exploratory analyses also revealed that this genotype conferred benefits to marital quality through another path, altogether supporting the notion that genotypic variation on OXTR may have broad and potentially context-dependent influences on social behavior, which may play out in complex ways when examined in a marital context. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Relações Interpessoais , Receptores de Ocitocina/genética , Percepção Social , Apoio Social , Cônjuges/psicologia , Adulto , Feminino , Humanos , Masculino
18.
Dev Psychopathol ; 31(4): 1339-1352, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30394263

RESUMO

Research suggests that genetic variants linked to hypothalamic-pituitary-adrenal (HPA)-axis functioning moderate the association between environmental stressors and depression, but examining gene-environment interactions with single polymorphisms limits power. The current study used a multilocus genetic profile score (MGPS) approach to measuring HPA-axis-related genetic variation and examined interactions with acute stress, chronic stress, and childhood adversity (assessed using contextual threat interview methods) with depressive symptoms as outcomes in an adolescent sample (ages 14-17, N = 241; White subsample n = 192). Additive MGPSs were calculated using 10 single nucleotide polymorphisms within HPA-axis genes (CRHR1, NR3C2, NR3C1, FKBP5). Higher MGPS directly correlated with adolescent depressive symptoms. Moreover, MGPS predicted stronger associations between acute and chronic stress and adolescent depressive symptoms and also moderated the effect of interpersonal, but not noninterpersonal, childhood adversity. Gene-environment interactions individually accounted for 5%-8% of depressive symptom variation. All results were retained following multiple test correction and stratification by race. Results suggest that using MGPSs provides substantial power to examine gene-environmental interactions linked to affective outcomes among adolescents.


Assuntos
Experiências Adversas da Infância , Depressão/psicologia , Receptores de Hormônio Liberador da Corticotropina/genética , Receptores de Glucocorticoides/genética , Receptores de Mineralocorticoides/genética , Estresse Psicológico/psicologia , Proteínas de Ligação a Tacrolimo/genética , Adolescente , Depressão/genética , Depressão/metabolismo , Feminino , Interação Gene-Ambiente , Humanos , Sistema Hipotálamo-Hipofisário/metabolismo , Masculino , Sistema Hipófise-Suprarrenal/metabolismo , Polimorfismo de Nucleotídeo Único , Estresse Psicológico/genética , Estresse Psicológico/metabolismo
19.
Depress Anxiety ; 35(6): 583-591, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29697888

RESUMO

BACKGROUND: Anxiety and depression are commonly comorbid with each other, with anxiety often temporally preceding the development of depression. Although increasingly research has begun to investigate the role of sleep problems in depression, no study has examined insomnia as a mediator in the longitudinal relationship between anxiety and subsequent depression. METHODS: The current study utilizes data from Waves I, II, and IV of the National Longitudinal Study of Adolescent to Adult Health, a nationally representative prospective study conducted over a 14-year period (n = 20,745, 50.5% female, M age at Wave I = 16.20). Participants completed portions of the Center for Epidemiologic Studies Depression Scale at Waves I and IV to assess depressive symptoms, a six-item anxiety measure at Wave I, and three items assessing insomnia, sleep quality, and sleep duration at Wave II. RESULTS: Structural equation modeling indicated that insomnia and unrestful sleep significantly mediated the relationship between anxiety and subsequent depression. The relationship between anxiety and depression was not significantly mediated by sleep duration. CONCLUSIONS: Findings suggest that anxiety may increase risk for the development of later depression through insomnia.


Assuntos
Ansiedade/epidemiologia , Depressão/epidemiologia , Distúrbios do Início e da Manutenção do Sono/epidemiologia , Adolescente , Adulto , Comorbidade , Feminino , Humanos , Estudos Longitudinais , Masculino , Estados Unidos/epidemiologia
20.
Dev Psychopathol ; 29(5): 1877-1893, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29162191

RESUMO

Childhood adversity (CA) is known to predict sensitization to proximal stressors. Researchers have suggested that disruptions in hypothalamus-pituitary-adrenal axis functioning may be a biological mechanism. If so, CA may predict altered associations between proximal life stress and markers of cortisol secretion. We examined whether CA moderates associations between recent episodic stress and (a) the cortisol awakening response (CAR), and (b) depressive symptoms, in 241 adolescents aged 14-17 years (cortisol n = 196). Salivary cortisol was sampled at 0, 30, and 60 min postawakening for 2 days. The CAR was calculated as the area under the curve with respect to increase and waking cortisol. CA and episodic stress were assessed using contextual-threat-method-coded objective interviews. CA significantly interacted with episodic stress to predict both the CAR and depression. Among those with low CA, episodic stress predicted increased CAR but did not predict depression. For adolescents with high CA, episodic stress predicted lower CAR and higher depression. These interactions were found only for independent (uncontrollable, fateful) events, and not for dependent (self-generated) stress. Increased allostatic load resulting from CA exposure may interfere with adolescents' ability to optimally regulate their CAR in relation to recent stress, contributing to increased depression risk.


Assuntos
Depressão/metabolismo , Hidrocortisona/metabolismo , Acontecimentos que Mudam a Vida , Estresse Psicológico/metabolismo , Adolescente , Biomarcadores , Ritmo Circadiano , Depressão/psicologia , Feminino , Humanos , Sistema Hipotálamo-Hipofisário/metabolismo , Masculino , Sistema Hipófise-Suprarrenal/metabolismo , Saliva/química , Estresse Psicológico/psicologia
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