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1.
J Gen Intern Med ; 39(3): 418-427, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38010460

RESUMEN

BACKGROUND: Sexual violence (SV) and intimate partner violence (IPV) experiences are major social determinants of adverse health. There is limited prevalence data on these experiences for veterans, particularly across sociodemographic groups. OBJECTIVE: To estimate the prevalence of SV before, during, and after military service and lifetime and past-year IPV for women and men, and explore differences across sociodemographic groups. DESIGN: Data are from two national cross-sectional surveys conducted in 2020. Weighted prevalence estimates of SV and IPV experiences were computed, and weighted logistic regression models were used for comparisons across gender, race, ethnicity, sexual orientation, and age. PARTICIPANTS: Study 1 included veterans of all service eras (N = 1187; 50.0% women; 29% response rate). Study 2 included recently separated post-9/11 veterans (N = 1494; 55.2% women; 19.4% response rate). MAIN MEASURES: SV was assessed with the Deployment Risk and Resilience Inventory-2 (DRRI-2). IPV was assessed with the extended Hurt-Insult-Threaten-Scream Tool. KEY RESULTS: Women were more likely than men to experience pre-military SV (study 1: 39.9% vs. 8.7%, OR = 6.96, CIs: 4.71-10.28; study 2: 36.2% vs. 8.6%, OR = 6.04, CIs: 4.18-8.71), sexual harassment and/or assault during military service (study 1: 55.0% vs. 16.8%, OR = 6.30, CIs: 4.57-8.58; study 2: 52.9% vs. 26.9%, OR = 3.08, CIs: 2.38-3.98), and post-military SV (study 1: 12.4% vs. 0.9%, OR = 15.49, CIs: 6.42-36.97; study 2: 7.5% vs. 1.5%, OR = 5.20, CIs: 2.26-11.99). Women were more likely than men to experience lifetime IPV (study 1: 45.7% vs. 37.1%, OR = 1.38, CIs: 1.04-1.82; study 2: 45.4% and 34.8%, OR = 1.60, CIs: 1.25-2.04) but not past-year IPV (study 1: 27.9% vs. 28.3%, OR = 0.95, CIs: 0.70-1.28; study 2: 33.1% vs. 28.5%, OR = 1.24, CIs: 0.95-1.61). When controlling for gender, there were few differences across other sociodemographic groups, with the exception of sexual orientation. CONCLUSIONS: Understanding veterans' experiences of SV and IPV can inform identification and intervention efforts, especially for women and sexual minorities.


Asunto(s)
Violencia de Pareja , Delitos Sexuales , Acoso Sexual , Veteranos , Femenino , Humanos , Masculino , Prevalencia , Estudios Transversales , Factores de Riesgo
2.
J Clin Psychol ; 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39264021

RESUMEN

OBJECTIVE: Trauma exposure, particularly interpersonal trauma, is prevalent among individuals with eating disorders (EDs), and trauma exposure and the subsequent development of posttraumatic stress disorder have been associated with poorer outcomes for ED treatment. To our knowledge, there are no published investigations of trauma exposure among individuals with avoidant/restrictive food intake disorder (ARFID), a new diagnosis introduced by the Diagnostic and Statistical Manual of Mental Disorders-5. We investigated associations between trauma exposure and ARFID profiles in a sample of U.S. military veteran men and women. METHOD: Participants in this cross-sectional study included 1494 veterans randomly selected from the population of post-9/11 veterans who had separated from military service within the previous 18 months. They completed a survey assessing EDs, including the Nine Item ARFID Screen and trauma exposure. RESULTS: Results revealed that 9.8% of the sample exceeded cutoffs for any ARFID profile, with the picky eating profile being the most common. Trauma exposure was prevalent among participants who exceeded cutoffs for ARFID, particularly the picky eating profile. DISCUSSION: Findings highlight the importance of addressing EDs, including ARFID, in veterans. It will be important to examine the extent to which trauma and trauma-related disorders impact treatment outcomes for individuals with ARFID.

3.
Eat Disord ; : 1-16, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39277845

RESUMEN

Trauma is a risk factor for eating disorders (EDs). Enhanced understanding of the pathways from trauma to EDs could identify important treatment targets. Guided by theory, the present study sought to replicate previous findings identifying posttraumatic stress disorder (PTSD) symptoms and shape/weight overvaluation as important pathways between trauma and ED symptoms and extend this work by investigating the role of posttraumatic cognitions in these associations. The sample included 825 female and 565 male post-9/11 veterans who completed cross-sectional survey measures of trauma, posttraumatic cognitions, PTSD symptoms, shape/weight overvaluation, and ED symptoms. Gender-stratified structural equation models were used to examine direct and indirect pathways from trauma exposure to EDs via PTSD symptoms and shape/weight overvaluation (replication) and posttraumatic cognitions (extension). Results suggested that trauma exposure was indirectly associated with ED symptoms via shape/weight overvaluation and posttraumatic cognitions. There was no indirect association between trauma exposure and ED symptoms via PTSD symptoms. Overall, findings from this study highlight the potential role of posttraumatic cognitions in understanding the association between trauma and ED symptoms. However, future longitudinal research is needed to verify the directionality of these associations and investigate cognitions as a potentially targetable risk mechanism in co-occurring trauma and EDs.

4.
Mol Psychiatry ; 27(10): 3929-3938, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35595976

RESUMEN

Substantial progress has been made in the understanding of anorexia nervosa (AN) and eating disorder (ED) genetics through the efforts of large-scale collaborative consortia, yielding the first genome-wide significant loci, AN-associated genes, and insights into metabo-psychiatric underpinnings of the disorders. However, the translatability, generalizability, and reach of these insights are hampered by an overly narrow focus in our research. In particular, stereotypes, myths, assumptions and misconceptions have resulted in incomplete or incorrect understandings of ED presentations and trajectories, and exclusion of certain patient groups from our studies. In this review, we aim to counteract these historical imbalances. Taking as our starting point the Academy for Eating Disorders (AED) Truth #5 "Eating disorders affect people of all genders, ages, races, ethnicities, body shapes and weights, sexual orientations, and socioeconomic statuses", we discuss what we do and do not know about the genetic underpinnings of EDs among people in each of these groups, and suggest strategies to design more inclusive studies. In the second half of our review, we outline broad strategic goals whereby ED researchers can expand the diversity, insights, and clinical translatability of their studies.


Asunto(s)
Anorexia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Femenino , Humanos , Masculino , Trastornos de Alimentación y de la Ingestión de Alimentos/genética , Anorexia Nerviosa/genética
5.
Int J Eat Disord ; 56(1): 108-117, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36239518

RESUMEN

PURPOSE: The COVID-19 pandemic has had a profound impact on mental health around the world. Although there have been reports that the incidence of eating disorders (EDs) has increased during the pandemic, few longitudinal studies have examined recent changes in EDs. Men and women with military histories may be particularly vulnerable to EDs, underscoring the importance of investigating the impact of the COVID-19 pandemic on EDs in this population. METHOD: We examined whether early-pandemic (Time 1; T1) posttraumatic stress disorder, depression, anxiety, and stress symptoms were associated with change in probable ED diagnostic status 1 year later (T2). We also investigated relationships from early pandemic mental health symptoms to change in ED diagnostic status from T1 to T2 via pandemic-related life circumstance pathways (health, financial, social, etc.). Participants included a population-based sample of 372 U.S. veterans who completed the T1 and T2 surveys. RESULTS: Early pandemic mental health was significantly and positively associated with probable ED diagnostic status. Social and health satisfaction as well as physical health pandemic impacts mediated the associations between mental health symptoms and ED diagnostic status. DISCUSSION: Findings highlight the importance of bolstering social connection, health-promoting behaviors, and access to ED treatment among veteran men and women impacted by the COVID-19 pandemic. PUBLIC SIGNIFICANCE: The COVID-19 pandemic has had a profound impact on mental health, including eating disorders (EDs). We found that early pandemic mental health symptoms were significantly associated with changes in U.S. veterans' ED diagnostic status 1 year later. Mental health symptoms increased ED diagnoses via their impact on social and health satisfaction, as well as physical health impacts of the pandemic. Findings highlight the importance of increasing social connection, health-promoting behaviors, and ED treatment access among veteran men and women, who may be particularly vulnerable to EDs, during the COVID pandemic.


Asunto(s)
COVID-19 , Trastornos de Alimentación y de la Ingestión de Alimentos , Personal Militar , Veteranos , Masculino , Humanos , Femenino , COVID-19/epidemiología , Veteranos/psicología , Pandemias , Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología
6.
J Trauma Stress ; 36(5): 1001-1009, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37485630

RESUMEN

Revisions to the posttraumatic stress disorder (PTSD) criteria in the DSM-5 included a new criterion in the alterations in arousal and reactivity cluster (i.e., engagement in reckless and self-destructive behaviors; Criterion E2). Despite its clinical significance, little is known about how this symptom corresponds to engagement in specific direct and indirect self-harm behaviors. We examined associations between E2 and self-reported recent engagement in direct and indirect self-harm behaviors, including disordered eating, which is not included in the prototypical E2 symptom scope, in a trauma-exposed sample of 1,010 recent-era veterans (61.5% self-identified women, 38.5% self-identified men). We also tested whether gender moderated these associations. We repeated analyses in a subsample of participants with clinically elevated PTSD symptoms. Participants self-reported past-month PTSD symptoms (PCL-5) as well as past-month nonsuicidal self-injury, suicidal ideation, suicide planning, fasting, purging, binge eating, compulsive exercise, and problematic alcohol and drug use. We found no evidence for moderation by gender for any of the behaviors examined in the main sample. However, after controlling for gender and demographic covariates, weighted logistic regressions showed small, significant associations between E2 score and direct self-harm behaviors, substance use, purging, and binge eating, aORs = 1.30-1.91. Criterion E2 was linked to behaviors included in the typical symptom scope (self-directed violence, substance use) and those that are not (disordered eating behaviors). Comprehensive screening for self-destructive behaviors, including disordered eating, among veteran men and women who endorse Criterion E2 is indicated.

7.
J Gen Intern Med ; 37(Suppl 3): 724-733, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-36042090

RESUMEN

BACKGROUND: Little is known about women veterans' intimate partner violence (IPV) experiences during the COVID-19 pandemic or the impacts of pandemic-related stress on their mental and physical health. OBJECTIVES: To identify IPV experiences among women veterans prior to and during the pandemic, pandemic-related stressors, and examine their respective contributions to mental and physical health. DESIGN: National sample of women veterans drawn from a larger web-based longitudinal study. Relationships between recent IPV and pandemic-related stressors were tested with linear regressions, controlling for pre-pandemic IPV and mental and physical health symptoms, demographic, and military-related covariates. PARTICIPANTS: One hundred forty-two women veterans (Mage=58.8 years). MAIN MEASURES: We assessed IPV (CTS-2), PTSD (PCL-5), depression (CESD), anxiety (DASS-A), physical health (PHQ-15), and physical health-related quality of life (SF-12) prior to the pandemic (June 2016-December 2016/January 2017) and during the pandemic study period (March 2020-December 2020/January 2021). We assessed pandemic-related stressors (EPII) during the pandemic study period. KEY RESULTS: Over a third (38.7%) of participants experienced IPV during the pandemic study period (psychological: 35.9%, physical: 9.9%, sexual: 4.2%). Overall rates, frequency, and severity of IPV experience did not significantly differ between the pre-pandemic and pandemic study periods. Few participants tested positive for COVID-19 (4.2%); however, most participants reported experiencing pandemic-related stressors across life domains (e.g., social activities: 88%, physical health: 80.3%, emotional health: 68.3%). IPV during the pandemic and pandemic-related stressors were both associated with greater PTSD and depressive symptoms. Pandemic-related stressors were associated with worse anxiety and physical health symptoms. Neither IPV during the pandemic nor pandemic-related stressors were associated with physical health-related quality of life. CONCLUSIONS: IPV experiences during the pandemic were common among women veterans, as were pandemic-related stressors. Although IPV did not increase in the context of COVID-19, IPV experiences during the pandemic and pandemic-related stressors were linked with poorer mental and physical health.


Asunto(s)
COVID-19 , Violencia de Pareja , Veteranos , COVID-19/epidemiología , Femenino , Humanos , Violencia de Pareja/psicología , Estudios Longitudinales , Pandemias , Calidad de Vida , Veteranos/psicología
8.
Int J Eat Disord ; 55(4): 470-480, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35092637

RESUMEN

OBJECTIVE: It is well documented that sexual minority individuals are more likely to report disordered eating (DE) than those identifying as heterosexual. Although DE is prevalent in veterans, investigation of potential disparities in DE among sexual minority veterans is limited. This study examined rates of DE in post-9/11 United States (U.S.) veterans identifying as sexual minorities and explored their association with discrimination because of marginalized identities. METHODS: A national sample of recently separated post-9/11 U.S. veterans were recruited. Women (N = 805; heterosexual [n = 656]; lesbian [n = 51]; bisexual [n = 98]) and men (N = 558; heterosexual [n = 540]; gay [n = 11]; bisexual [n = 7]) completed a survey assessing eating behaviors, mental health, and military experiences. Weighted correlational and regression analyses were conducted. Analyses in men were exploratory. RESULTS: DE was prevalent across gender and sexual orientation identity groups. Women identifying as bisexual and men identifying as gay reported higher rates of DE and consequent impairment compared to veterans who identified as heterosexual. There were no differences in DE between heterosexual and lesbian female veterans, but lesbian women reported lower DE-related impairment. Experiencing any discrimination in the military was positively related to DE. DISCUSSION: This study found evidence of disparities in DE among sexual minority U.S. military veterans. While the factors contributing to these differences, such as the role of discrimination, are not completely understood, DE is a health concern for sexual minority veterans and requires continued investigation. PUBLIC SIGNIFICANCE: Sexual minority individuals experience disparities in disordered eating; yet, this has not been explored in military veterans. This study found that disordered eating is a significant health concerns for veteran women and men, especially among those identifying as sexual minorities. More research is needed to explore why these disparities exist, such as the role of minority stress, in order to address the unique healthcare needs of these veterans.


Asunto(s)
Trastornos de Alimentación y de la Ingestión de Alimentos , Homosexualidad Femenina , Minorías Sexuales y de Género , Veteranos , Bisexualidad/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología , Femenino , Heterosexualidad/psicología , Homosexualidad Femenina/psicología , Humanos , Masculino , Conducta Sexual/psicología , Estados Unidos/epidemiología
9.
Med Care ; 59: S51-S57, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33438883

RESUMEN

OBJECTIVE: This study aimed to (1) examine whether the latent class structure of individuals engaging in self-directed violence and indirect self-harm behaviors (eg, substance use, disordered eating) varied by gender in a sample of US veterans, and (2) test the associations of posttraumatic stress disorder (PTSD) and depressive symptoms with the resulting classes. STUDY DESIGN: Cross-sectional data from 3581 veterans, ages 18-50 (51.9% identified as women) were analyzed. Veterans self-reported histories of self-directed violence, substance use, and disordered eating. Latent class analysis and latent class regression were used to explore class structure by gender and examine association of class membership with PTSD and depressive symptoms. RESULTS: A 4-class model was supported in the sample. Class 1 (20.0%) was characterized by substance use and self-directed violent thoughts and behaviors. Class 2 (8.3%) was characterized by substance use, disordered eating, and self-directed violent thoughts and behaviors. Class 3 (12.6%) was distinguished by indirect self-harm behaviors (substance use and disordered eating). Class 4 (59.6%) reflected low likelihood of behavioral dysregulation. Classes were partially invariant across gender; endorsement of substance use behaviors was generally higher for men in each class. Comorbid clinically significant depressive and PTSD symptoms were associated with the class characterized by highest behavioral dysregulation. CONCLUSIONS: Self-directed violent thoughts and behaviors present comorbidly with indirect self-harm in men and women veterans, although patterns of indirect self-harm behaviors differ slightly by gender. Such comorbidity may be associated with more severe presentations of psychiatric concerns.


Asunto(s)
Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología , Conductas de Riesgo para la Salud , Análisis de Clases Latentes , Conducta Autodestructiva/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Veteranos/psicología , Veteranos/estadística & datos numéricos , Adolescente , Adulto , Comorbilidad , Depresión/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales , Trastornos por Estrés Postraumático/epidemiología , Estados Unidos/epidemiología , Adulto Joven
10.
Int J Eat Disord ; 54(7): 1260-1269, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33876442

RESUMEN

PURPOSE: Many women with eating disorders (EDs) have comorbid posttraumatic stress disorder (PTSD). However, there have been few studies on how comorbid PTSD may impact ED treatment outcomes. METHOD: Participants were 2,809 patients from residential ED treatment facilities who were treated using the Unified Treatment Model (UTM). We investigated whether PTSD diagnosis at admission was associated with changes in Eating Disorder Examination-Questionnaire (EDE-Q) scores, binge eating, self-induced vomiting, and restriction, across three time points, as well as clinically significant improvement and treatment drop-out. RESULTS: Using latent growth models, with time modeled as a second-order polynomial, we found that EDE-Q scores and behavioral symptoms decreased from admission to discharge, but increased from discharge to 6-month follow-up. PTSD diagnosis was associated with higher baseline EDE-Q scores and restriction, and lower binge-eating frequency. PTSD diagnosis was not associated with symptom change over time, treatment dropout, or clinically significant change. DISCUSSION: Although PTSD diagnoses were associated with higher ED symptom levels at admission, PTSD was not associated with worse treatment outcomes, suggesting the UTM is a promising treatment for patients with and without PTSD. Future studies should investigate the impact of ED treatment on PTSD symptoms in order to determine the need for integrated treatments for these comorbid conditions.


Asunto(s)
Trastorno por Atracón , Bulimia , Trastornos de Alimentación y de la Ingestión de Alimentos , Trastornos por Estrés Postraumático , Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Femenino , Humanos , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/terapia , Resultado del Tratamiento
11.
Eat Disord ; 29(3): 292-306, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33411646

RESUMEN

Many individuals with lifetime histories of eating disorders (EDs) report exposure to interpersonal trauma and posttraumatic stress disorder (PTSD). However, this relationship is not well-understood, and there are no established, evidence-based therapies for the concurrent treatment of EDs and PTSD. This review focuses on studies of the mechanisms associating trauma exposure and/or PTSD with EDs. Possible mechanisms of the trauma-ED association identified from the literature include self-criticism, low self-worth, guilt, shame, depression, anxiety, emotion dysregulation, anger, and impulsivity/compulsivity. ED behaviors may be used as coping strategies to manage PTSD symptoms and negative affect. Avoidance of hyperarousal symptoms by engaging in binge eating, purging, and/or restriction may serve to maintain both the ED as well as the PTSD. Given the evidence of the bidirectional relationship between EDs and PTSD, we describe an integrated cognitive behavioral theory that may account for the persistence of comorbid PTSD and EDs. The integrated model is based on the theoretical models that underpin existing evidence-based treatments for PTSD and ED and incorporates many of the potential mechanisms highlighted to date. The primary aim of the model is to identify potential treatment targets as well as elucidate future directions for research.


Asunto(s)
Trastorno por Atracón , Bulimia , Trastornos de Alimentación y de la Ingestión de Alimentos , Trastornos por Estrés Postraumático , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Humanos , Vergüenza , Trastornos por Estrés Postraumático/terapia
12.
PLoS Genet ; 13(6): e1006828, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28604778

RESUMEN

Cleft palate is a common congenital disorder that affects up to 1 in 2500 live births and results in considerable morbidity to affected individuals and their families. The aetiology of cleft palate is complex with both genetic and environmental factors implicated. Mutations in the transcription factor p63 are one of the major individual causes of cleft palate; however, the gene regulatory networks in which p63 functions remain only partially characterized. Our findings demonstrate that p63 functions as an essential regulatory molecule in the spatio-temporal control of palatal epithelial cell fate to ensure appropriate fusion of the palatal shelves. Initially, p63 induces periderm formation and controls its subsequent maintenance to prevent premature adhesion between adhesion-competent, intra-oral epithelia. Subsequently, TGFß3-induced down-regulation of p63 in the medial edge epithelia of the palatal shelves is a pre-requisite for palatal fusion by facilitating periderm migration from, and reducing the proliferative potential of, the midline epithelial seam thereby preventing cleft palate.


Asunto(s)
Fisura del Paladar/genética , Redes Reguladoras de Genes/genética , Fosfoproteínas/genética , Transactivadores/genética , Factor de Crecimiento Transformador beta3/genética , Animales , Movimiento Celular/genética , Proliferación Celular/genética , Fisura del Paladar/fisiopatología , Modelos Animales de Enfermedad , Células Epiteliales/metabolismo , Regulación del Desarrollo de la Expresión Génica , Humanos , Ratones , Mutación , Fosfoproteínas/biosíntesis , Transducción de Señal/genética , Transactivadores/biosíntesis
13.
PLoS Genet ; 13(10): e1007068, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29084269

RESUMEN

The coronary vasculature is an essential vessel network providing the blood supply to the heart. Disruptions in coronary blood flow contribute to cardiac disease, a major cause of premature death worldwide. The generation of treatments for cardiovascular disease will be aided by a deeper understanding of the developmental processes that underpin coronary vessel formation. From an ENU mutagenesis screen, we have isolated a mouse mutant displaying embryonic hydrocephalus and cardiac defects (EHC). Positional cloning and candidate gene analysis revealed that the EHC phenotype results from a point mutation in a splice donor site of the Myh10 gene, which encodes NMHC IIB. Complementation testing confirmed that the Myh10 mutation causes the EHC phenotype. Characterisation of the EHC cardiac defects revealed abnormalities in myocardial development, consistent with observations from previously generated NMHC IIB null mouse lines. Analysis of the EHC mutant hearts also identified defects in the formation of the coronary vasculature. We attribute the coronary vessel abnormalities to defective epicardial cell function, as the EHC epicardium displays an abnormal cell morphology, reduced capacity to undergo epithelial-mesenchymal transition (EMT), and impaired migration of epicardial-derived cells (EPDCs) into the myocardium. Our studies on the EHC mutant demonstrate a requirement for NMHC IIB in epicardial function and coronary vessel formation, highlighting the importance of this protein in cardiac development and ultimately, embryonic survival.


Asunto(s)
Vasos Coronarios/crecimiento & desarrollo , Desarrollo Embrionario/genética , Cadenas Pesadas de Miosina/genética , Miosina Tipo IIB no Muscular/genética , Pericardio/crecimiento & desarrollo , Animales , Diferenciación Celular/genética , Vasos Coronarios/metabolismo , Embrión de Mamíferos , Transición Epitelial-Mesenquimal/genética , Humanos , Hidrocefalia/genética , Hidrocefalia/metabolismo , Hidrocefalia/patología , Ratones , Ratones Noqueados , Mutación , Miocardio/metabolismo , Pericardio/metabolismo
14.
Depress Anxiety ; 35(2): 132-139, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29283198

RESUMEN

BACKGROUND: To examine shared genetic and environmental risk factors across PTSD symptoms and resilience. METHODS: Classical twin study of 2010-2012 survey data conducted among 3,318 male twin pairs in the Vietnam Era Twin Registry. Analyses included: (a) estimates of genetic and environmental influences on PTSD symptom severity (as measured by the PTSD Checklist) and resilience (assessed with the Connor-Davidson Resilience Scale-10); (b) development of a latent model of traumatic stress, spanning both PTSD and resilience; and (c) estimates of genetic and environmental influences on this spectrum. RESULTS: The heritability of PTSD was 49% and of resilience was 25%. PTSD and resilience were correlated at r = -.59, and 59% of this correlation was attributable to a single genetic factor, whereas the remainder was due to a single non-shared environment factor. Resilience was also influenced by common and unique environmental factors not shared with PTSD, but there was no genetic factor specific to resilience. Confirmatory factor analysis supported the Development of a revised phenotype reflecting the broader dimension of traumatic stress, with biometric models suggesting increased heritability (66%) of this spectrum compared to PTSD or resilience individually. CONCLUSIONS: Genetic factors contribute to a single spectrum of traumatic stress reflecting resilience at one end and high symptom severity at the other. This carries implications for phenotype refinement in the search for molecular genetic markers of trauma-related psychopathology. Rather than focusing only on genetic risk for PTSD, molecular genetics research may benefit from evaluation of the broader spectrum of traumatic stress.


Asunto(s)
Susceptibilidad a Enfermedades , Enfermedades en Gemelos , Sistema de Registros , Resiliencia Psicológica , Trastornos por Estrés Postraumático , Anciano , Enfermedades en Gemelos/epidemiología , Enfermedades en Gemelos/etiología , Enfermedades en Gemelos/genética , Enfermedades en Gemelos/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/etiología , Trastornos por Estrés Postraumático/genética , Trastornos por Estrés Postraumático/fisiopatología , Veteranos/estadística & datos numéricos
16.
Int J Eat Disord ; 50(11): 1328-1331, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28940217

RESUMEN

OBJECTIVE: Eating disorders are understudied among male veterans, who may be at increased risk due to the high rates of trauma exposure and experiences of multiple traumatization in this population. This study sought to examine the associations between specific types of trauma (i.e., childhood physical abuse, adult physical assault, childhood sexual abuse, adult sexual assault, and military-related trauma) and eating disorder symptoms in a large, nationally-representative sample of trauma-exposed male veterans. METHOD: Survey data were collected from N = 642 male veterans. Traumatic experiences in childhood and adulthood were assessed using the Trauma History Screen and the National Stressful Events Survey. Eating disorder symptoms were assessed with the Eating Disorder Diagnostic Scale. Analyses also controlled for age and body mass index. RESULTS: Multiple traumatization was associated with increased eating disorder symptoms. However, military-related trauma was the only trauma type that was uniquely associated with eating disorder symptoms when controlling for other trauma types. Examination of different types of military-related trauma indicated that this association was not driven by exposure to combat. DISCUSSION: Noncombat, military-related trauma was associated with eating disorder symptom severity in male veterans. Results highlight the need for better assessment of eating disorder symptoms in this population.


Asunto(s)
Trastornos de Alimentación y de la Ingestión de Alimentos/etiología , Personal Militar/psicología , Trastornos por Estrés Postraumático/psicología , Veteranos/psicología , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios
17.
Memory ; 25(9): 1191-1200, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28276984

RESUMEN

Decades of research suggest that encoding information with respect to the self improves memory (self-reference effect, SRE) for items (item SRE). The current study focused on how processing information in reference to the self affects source memory for whether an item was self-referentially processed (a source SRE). Participants self-referentially or non-self-referentially encoded words (Experiment 1) or pictures (Experiment 2) that varied in valence (positive, negative, neutral). Relative to non-self-referential processing, self-referential processing enhanced item recognition for all stimulus types (an item SRE), but it only enhanced source memory for positive words (a source SRE). In fact, source memory for negative and neutral pictures was worse for items processed self-referentially than non-self-referentially. Together, the results suggest that item SRE and source SRE (e.g., remembering an item was encoded self-referentially) are not necessarily the same across stimulus types (e.g., words, pictures; positive, negative). While an item SRE may depend on the overall likelihood the item generates any association, the enhancing effects of self-referential processing on source memory for self-referential encoding may depend on how embedded a stimulus becomes in one's self-schema, and that depends, in part, on the stimulus' valence and format. Self-relevance ratings during encoding provide converging evidence for this interpretation.


Asunto(s)
Emociones/fisiología , Memoria/fisiología , Autoimagen , Adolescente , Nivel de Alerta/fisiología , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Estimulación Luminosa , Reconocimiento en Psicología/fisiología , Adulto Joven
19.
Compr Psychiatry ; 68: 134-9, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27234194

RESUMEN

OBJECTIVE: Eating disorders are understudied in men and in sexual minority populations; however, extant evidence suggests that gay men have higher rates of disordered eating than heterosexual men. The present study examined the associations between sexual orientation, body mass index (BMI), disordered eating behaviors, and food addiction in a sample of male veterans. METHOD: Participants included 642 male veterans from the Knowledge Networks-GfK Research Panel. They were randomly selected from a larger study based on previously reported trauma exposure; 96% identified as heterosexual. Measures included the Eating Disorder Diagnostic Scale, the Yale Food Addiction Scale, and self-reported height and weight. RESULTS: Heterosexual and sexual minority men did not differ significantly in terms of BMI. However, gay and bisexual men (n=24) endorsed significantly greater eating disorder symptoms and food addiction compared to heterosexual men. CONCLUSIONS: Our findings that sexual minority male veterans may be more likely to experience eating disorder and food addiction symptoms compared to heterosexual male veterans highlight the importance of prevention, assessment, and treatment efforts targeted to this population.


Asunto(s)
Peso Corporal , Conducta Alimentaria/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Homosexualidad Masculina/psicología , Conducta Sexual/psicología , Veteranos/psicología , Adulto , Anciano , Anciano de 80 o más Años , Índice de Masa Corporal , Estudios Transversales , Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Femenino , Heterosexualidad/psicología , Humanos , Masculino , Persona de Mediana Edad , Distribución Aleatoria , Autoinforme , Minorías Sexuales y de Género/psicología
20.
Am J Hum Genet ; 90(1): 69-75, 2012 Jan 13.
Artículo en Inglés | MEDLINE | ID: mdl-22197488

RESUMEN

Pterygium syndromes are complex congenital disorders that encompass several distinct clinical conditions characterized by multiple skin webs affecting the flexural surfaces often accompanied by craniofacial anomalies. In severe forms, such as in the autosomal-recessive Bartsocas-Papas syndrome, early lethality is common, complicating the identification of causative mutations. Using exome sequencing in a consanguineous family, we identified the homozygous mutation c.1127C>A in exon 7 of RIPK4 that resulted in the introduction of the nonsense mutation p.Ser376X into the encoded ankyrin repeat-containing kinase, a protein that is essential for keratinocyte differentiation. Subsequently, we identified a second mutation in exon 2 of RIPK4 (c.242T>A) that resulted in the missense variant p.Ile81Asn in the kinase domain of the protein. We have further demonstrated that RIPK4 is a direct transcriptional target of the protein p63, a master regulator of stratified epithelial development, which acts as a nodal point in the cascade of molecular events that prevent pterygium syndromes.


Asunto(s)
Labio Leporino/genética , Fisura del Paladar/genética , Exoma , Proteínas Serina-Treonina Quinasas/genética , Pterigion/congénito , Secuencia de Aminoácidos , Animales , Secuencia de Bases , Niño , Labio Leporino/diagnóstico , Fisura del Paladar/diagnóstico , Consanguinidad , Anomalías Craneofaciales/genética , Exones , Genes Recesivos , Sitios Genéticos , Humanos , Queratinocitos/metabolismo , Masculino , Ratones , Datos de Secuencia Molecular , Mutación , Fosfoproteínas/metabolismo , Pterigion/diagnóstico , Pterigion/genética , Índice de Severidad de la Enfermedad , Anomalías Cutáneas , Transactivadores/metabolismo , Factores de Transcripción/metabolismo , Proteínas Supresoras de Tumor/metabolismo
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