Post-traumatic stress in adults with 22q11.2 deletion syndrome.

22q11.2 deletion syndrome (22q11.2DS) is associated with an elevated genetic risk of several psychiatric disorders. However, the prevalence of post-traumatic stress disorder (PTSD) in individuals with 22q11.2DS has been reported to be only 0.9%; this is lower than that of the general population (3.9%). We explored the occurrence of PTSD and traumatic events in a Dutch cohort of 112 adults with 22q11.2DS, and found PTSD in 8.0%, traumatic events in 20.5% and trauma-focused treatment in 17.9% of patients. Our novel findings suggest that PTSD may be underdiagnosed in individuals with 22q11.2DS. Clinicians and other caregivers should be alert to trauma in this population in order to enable treatment and minimise psychiatric burden.

Predictors of neurobehavioral symptom reporting in a community based sample with mild traumatic brain injury.

BACKGROUND: The Neurobehavioral Symptom Inventory (NSI-22) is a validated self-report measure designed to assess neurobehavioral symptoms (NBS) after mild TBI (MTBI). Psychological and behavioral factors have been shown to be predictors of persistent NBS reporting in veterans; however, there is still a gap in knowledge about these associations in a civilian population presenting for treatment. OBJECTIVE: This study seeks to identify the predictors of increased NBS reporting on the NSI-22 in a treatment-seeking population with MTBI. METHODS: Analysis of 80 treatment seeking participants admitted to an interdisciplinary outpatient rehabilitation program with a diagnosis of MTBI. NSI-22 was used to measure NBS reporting. Predictor variables identified by univariate analysis were entered into a multivariable regression model, which was adjusted for demographic variables. RESULTS: Higher NSI-22 scores correlated with increased level of depressive complaints (PHQ-9), higher disability (M2PI), lower satisfaction with life (SWLS), prior MTBI, fewer years of education, absence of motor vehicle collision (MVC), and unemployment at time of assessment. When those variables were used in a multivariable linear regression model, PHQ-9, M2PI, years of education, and absence of MVC remained statistically significant. CONCLUSION: Psychological factors and level of societal participation predicted increased NBS as compared with injury severity and time since injury.

Development of an international data repository and research resource: the Prospective studies of Acute Child Trauma and Recovery (PACT/R) Data Archive.

Background: Studies that identify children after acute trauma and prospectively track risk/protective factors and trauma responses over time are resource-intensive; small sample sizes often limit power and generalizability. The Prospective studies of Acute Child Trauma and Recovery (PACT/R) Data Archive was created to facilitate more robust integrative cross-study data analyses. Objectives: To (a) describe creation of this research resource, including harmonization of key variables; (b) describe key study- and participant-level variables; and (c) examine retention to follow-up across studies. Methods: For the first 30 studies in the Archive, we described study-level (design factors, retention rates) and participant-level (demographic, event, traumatic stress) variables. We used Chi square or ANOVA to examine study- and participant-level variables potentially associated with retention. Results: These 30 prospective studies (N per study = 50 to 568; overall N = 5499) conducted by 15 research teams in 5 countries enrolled children exposed to injury (46%), disaster (24%), violence (13%), traffic accidents (10%), or other acute events. Participants were school-age or adolescent (97%), 60% were male, and approximately half were of minority ethnicity. Using harmonized data from 22 measures, 24% reported significant traumatic stress ≥1 month post-event. Other commonly assessed outcomes included depression (19 studies), internalizing/externalizing symptoms (19), and parent mental health (19). Studies involved 2 to 5 research assessments; 80% of participants were retained for ≥2 assessments. At the study level, greater retention was associated with more planned assessments. At the participant level, adolescents, minority youth, and those of lower socioeconomic status had lower retention rates. Conclusion: This project demonstrates the feasibility and value of bringing together traumatic stress research data and making it available for re-use. As an ongoing research resource, the Archive can promote 'FAIR' data practices and facilitate integrated analyses to advance understanding of child traumatic stress.

Antecedentes: Los estudios que identifican niños luego de la exposición a trauma agudo y realizan un seguimiento prospectivo para identificar factores protectores o de riesgo, y respuestas al trauma en el tiempo requieren una gran cantidad de recursos; el tamaño pequeño de las muestras frecuentemente limita su poder y generalización. El Banco de Información de los Estudios Prospectivos sobre Trauma Agudo y Recuperación en el Niño (PACT/R por sus siglas en inglés) se creó para facilitar un análisis de datos más robusto e integrativo entre los estudios.Objetivos: a) Describir la creación de este recurso de investigación, incluyendo la armonización de variables clave; b) describir las variables clave a nivel de estudios y de participantes; y c) evaluar la permanencia del seguimiento en los estudios.Métodos: Describimos las variables 'nivel de estudio' (diseño, factores, tasas de permanencia) y 'nivel de participantes' (demografía, evento, estrés traumático) en los 30 primeros estudios del Banco. Empleamos Chi cuadrado o ANOVA para evaluar los niveles de estudio y de participante potencialmente asociados con la permanencia.Resultados: Estos 30 estudios prospectivos (N por estudio = 50 a 568; total N = 5499) realizados por 15 grupos de investigación en 5 países reclutaron niños expuestos a lesión (46%), desastre (24), violencia (13%), accidentes de tránsito (10%) u otros eventos agudos. Los participantes estaban en edad escolar o en la adolescencia (97%), 60% eran varones y, aproximadamente la mitad pertenecían a una minoría étnica. Empleando la armonización de datos para 22 mediciones, el 24% reportó estrés traumático significativo mayor o igual a un mes luego del evento. Otros desenlaces comúnmente evaluados incluyeron a la depresión (19 estudios), síntomas internalizantes y externalizantes (19), y salud mental de los padres (19). Los estudios incluyeron entre 2 y 5 evaluaciones de investigación; 80% de los participantes fueron mantenidos para dos o más evaluaciones. En el nivel de estudio, una mayor permanencia se asoció a un mayor número de evaluaciones planificadas. En el nivel de participantes, los adolescentes, los jóvenes pertenecientes a minorías, y aquellos en niveles socioeconómicos más bajos presentaron menores tasas de permanencia.Conclusión: Este proyecto demuestra la viabilidad y el valour de integrar la información sobre la investigación en estrés traumático y hacerla disponible para ser reutilizada. Como recurso de investigación en curso, el Banco puede promover el uso de prácticas de información 'FAIR' y facilitar el análisis integrado para generar progreso en la comprensión del estrés traumático infantil.

Endogenous opiates and behavior: 2012.

This paper is the thirty-fifth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2012 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).

Genotype-dependent consequences of traumatic stress in four inbred mouse strains.

Post-traumatic stress disorder (PTSD) is an anxiety disorder that develops in predisposed individuals following a terrifying event. Studies on isogenic animal populations might explain susceptibility to PTSD by revealing associations between the molecular and behavioural consequences of traumatic stress. Our study employed four inbred mouse strains to search for differences in post-stress response to a 1.5-mA electric foot shock. One day to 6 weeks after the foot shock anxiety, depression and addiction-like phenotypes were assessed. In addition, expression levels of selected stress-related genes were analysed in hippocampus and amygdala. C57BL/6J mice exhibited up-regulation in the expression of Tsc22d3, Nfkbia, Plat and Crhr1 genes in both brain regions. These alterations were associated with an increase of sensitized fear and depressive-like behaviour over time. Traumatic stress induced expression of Tsc22d3, Nfkbia, Plat and Fkbp5 genes and developed social withdrawal in DBA/2J mice. In 129P3/J strain, exposure to stress produced the up-regulation of Tsc22d3 and Nfkbia genes and enhanced sensitivity to the rewarding properties of morphine. Whereas, SWR/J mice displayed increase only in Pdyn expression in the amygdala and had the lowest conditioned fear. Our results reveal a complex genetic background of phenotypic variation in response to stress and indicate the SWR/J strain as a valuable model of stress resistance. We found potential links between the alterations in expression of Tsc22d3, Nfkbia and Pdyn, and different aspects of susceptibility to stress.