[Current Outpatient Psychotherapeutic Care for People with Migration and Refugee Experience in Germany - An Overview]. / Die aktuelle ambulante psychotherapeutische Versorgung von Menschen mit Migrations- und Fluchterfahrung in Deutschland ­ Eine Übersicht.

Although mental health is a human right, even in a country with a well-developed healthcare system like Germany, it is not possible to ensure non-discriminatory access to mental health care for all people, regardless of their origin. For individuals with a history of flight or migration it is particularly difficult to gain access to adequate psychotherapeutic care. This review addresses key barriers contributing to the lack of outpatient care for people with a history of flight or migration. Lack of knowledge about the treatment system, fear of stigma, structural barriers, language barriers, lack of networking of healthcare providers, lack of knowledge of mental health practitioners, as well as stereotypes, discrimination, and racism towards people with a refugee or migration history were identified as the most important barriers with sufficient evidence. Innovative concepts such as peer support can enable non-discriminatory treatment access. In addition, there is an urgent need to train the profession of psychotherapists in racism- and discrimination-sensitive work and to integrate these aspects into psychotherapeutic education and training.

Interactions between latent variables in count regression models.

In psychology and the social sciences, researchers often model count outcome variables accounting for latent predictors and their interactions. Even though neglecting measurement error in such count regression models (e.g., Poisson or negative binomial regression) can have unfavorable consequences like attenuation bias, such analyses are often carried out in the generalized linear model (GLM) framework using fallible covariates such as sum scores. An alternative is count regression models based on structural equation modeling, which allow to specify latent covariates and thereby account for measurement error. However, the issue of how and when to include interactions between latent covariates or between latent and manifest covariates is rarely discussed for count regression models. In this paper, we present a latent variable count regression model (LV-CRM) allowing for latent covariates as well as interactions among both latent and manifest covariates. We conducted three simulation studies, investigating the estimation accuracy of the LV-CRM and comparing it to GLM-based count regression models. Interestingly, we found that even in scenarios with high reliabilities, the regression coefficients from a GLM-based model can be severely biased. In contrast, even for moderate sample sizes, the LV-CRM provided virtually unbiased regression coefficients. Additionally, statistical inferences yielded mixed results for the GLM-based models (i.e., low coverage rates, but acceptable empirical detection rates), but were generally acceptable using the LV-CRM. We provide an applied example from clinical psychology illustrating how the LV-CRM framework can be used to model count regressions with latent interactions.

NTRK2 methylation is related to reduced PTSD risk in two African cohorts of trauma survivors.

Extensive pharmacologic, genetic, and epigenetic research has linked the glucocorticoid receptor (GR) to memory processes, and to risk and symptoms of posttraumatic stress disorder (PTSD). In the present study we investigated the epigenetic pattern of 12 genes involved in the regulation of GR signaling in two African populations of heavily traumatized individuals: Survivors of the rebel war in northern Uganda (n = 463) and survivors of the Rwandan genocide (n = 350). The strongest link between regional methylation and PTSD risk and symptoms was observed for NTRK2, which encodes the transmembrane receptor tropomyosin-related kinase B, binds the brain-derived neurotrophic factor, and has been shown to play an important role in memory formation. NTRK2 methylation was not related to trauma load, suggesting that methylation differences preexisted the trauma. Because NTRK2 methylation differences were predominantly associated with memory-related PTSD symptoms, and because they seem to precede traumatic events, we next investigated the relationship between NTRK2 methylation and memory in a sample of nontraumatized individuals (n = 568). We found that NTRK2 methylation was negatively associated with recognition memory performance. Furthermore, fMRI analyses revealed NTRK2 methylation-dependent differences in brain network activity related to recognition memory. The present study demonstrates that NTRK2 is epigenetically linked to memory functions in nontraumatized subjects and to PTSD risk and symptoms in traumatized populations.

The role of psychotherapists' perceived barriers in providing psychotherapy to refugee patients.

Access to psychotherapy is critical to improving mental health, but only a small proportion of refugees receive treatment in the regular psychotherapeutic care system in high-income countries. In previous research, outpatient psychotherapists reported several barriers to more frequent treatment of refugee patients. However, it is unclear to what extent these perceived barriers contribute to the poor provision of services to refugees. In a survey of N = 2002 outpatient psychotherapists in Germany, we collected data on perceived treatment barriers and on the integration of refugees into regular psychotherapeutic practice. Half of the psychotherapists reported that they do not treat refugee patients. In addition, therapies provided for refugees were, on average, 20% shorter than for other patients. Regression analyses showed direct negative associations between psychotherapists' overall perception of barriers with the number of refugees treated and the number of sessions offered to refugee patients, even when controlling for sociodemographic and workload-related characteristics. Correlation analyses on the level of specific types of barriers further revealed that particularly language-related barriers and lack of contact with the refugee population are negatively correlated with the number of refugees treated and the number of sessions for refugees. Our findings indicate that the integration of refugees into regular psychotherapeutic care could be improved by measures to connect psychotherapists with refugee patients as well as professional interpreters and to ensure coverage of costs for therapy, interpreters and related administrative tasks.

A combination of combat experience, early abduction, and severe traumatization fuels appetitive aggression and violence among abductees of rebel war in Northern Uganda.

Individuals who perpetrate violence may likely perceive violence as appealing and infliction of violence to derive pleasure is termed as appetitive aggression. Individuals who were abducted as children into an armed group often experience a higher number of traumatic event types, that is traumatic load and are usually socialized in a violence-endorsing environment. This study aims to investigate the interaction between age at initial abduction with that of traumatic load, and their influence on appetitive aggression along with perpetration of violent acts by former members of an armed rebel group of both sexes. Semi-structured interviews were conducted among a target group of formerly abducted rebel-war survivors (including participants with and without combat experience) from Northern Uganda. Participants included 596 women and 570 men with N = 1,166 (Mage = 32.58, SDage = 9.76, range: 18-80 years). We conducted robust linear regression models to investigate the influence of age at initial abduction, traumatic load, combat experience, and biological sex on appetitive aggression as well as their perpetrated violent acts. Our study shows, appetitive aggression and the number of perpetrated violent acts were specifically increased in individuals who were abducted young, experienced several traumatic events in their lifetime, and with previous combat experience. For perpetrated violence men showed increased levels whereas for appetitive aggression the association was independent of biological sex. Therefore, early abducted individuals with a higher traumatic load, who have combat experience, need to be given special intervention to prevent any further violence.

Epigenetic modification of the glucocorticoid receptor gene is linked to traumatic memory and post-traumatic stress disorder risk in genocide survivors.

Recent evidence suggests that altered expression and epigenetic modification of the glucocorticoid receptor gene (NR3C1) are related to the risk of post-traumatic stress disorder (PTSD). The underlying mechanisms, however, remain unknown. Because glucocorticoid receptor signaling is known to regulate emotional memory processes, particularly in men, epigenetic modifications of NR3C1 might affect the strength of traumatic memories. Here, we found that increased DNA methylation at the NGFI-A (nerve growth factor-induced protein A) binding site of the NR3C1 promoter was associated with less intrusive memory of the traumatic event and reduced PTSD risk in male, but not female survivors of the Rwandan genocide. NR3C1 methylation was not significantly related to hyperarousal or avoidance symptoms. We further investigated the relationship between NR3C1 methylation and memory functions in a neuroimaging study in healthy subjects. Increased NR3C1 methylation-which was associated with lower NR3C1 expression-was related to reduced picture recognition in male, but not female subjects. Furthermore, we found methylation-dependent differences in recognition memory-related brain activity in men. Together, these findings indicate that an epigenetic modification of the glucocorticoid receptor gene promoter is linked to interindividual and gender-specific differences in memory functions and PTSD risk.

Epigenetic Alterations Associated with War Trauma and Childhood Maltreatment.

Survivors of war trauma or childhood maltreatment are at increased risk for trauma-spectrum disorders such as post-traumatic stress disorder (PTSD). In addition, traumatic stress has been associated with alterations in the neuroendocrine and the immune system, enhancing the risk for physical diseases. Traumatic experiences might even affect psychological as well as biological parameters in the next generation, i.e. traumatic stress might have transgenerational effects. This article outlines how epigenetic processes, which represent a pivotal biological mechanism for dynamic adaptation to environmental challenges, might contribute to the explanation of the long-lasting and transgenerational effects of trauma. In particular, epigenetic alterations in genes regulating the hypothalamus-pituitary-adrenal axis as well as the immune system have been observed in survivors of childhood and adult trauma. These changes could result in enduring alterations of the stress response as well as the physical health risk. Furthermore, the effects of parental trauma could be transmitted to the next generation by parental distress and the pre- and postnatal environment, as well as by epigenetic marks transmitted via the germline. While epigenetic research has a high potential of advancing our understanding of the consequences of trauma, the findings have to be interpreted with caution, as epigenetics only represent one piece of a complex puzzle of interacting biological and environmental factors. Copyright © 2015 John Wiley & Sons, Ltd.

The downside of strong emotional memories: how human memory-related genes influence the risk for posttraumatic stress disorder--a selective review.

A good memory for emotionally arousing experiences may be intrinsically adaptive, as it helps the organisms to predict safety and danger and to choose appropriate responses to prevent potential harm. However, under conditions of repeated exposure to traumatic stressors, strong emotional memories of these experiences can lead to the development of trauma-related disorders such as posttraumatic stress disorder (PTSD). This syndrome is characterized by distressing intrusive memories that can be so intense that the survivor is unable to discriminate past from present experiences. This selective review on the role of memory-related genes in PTSD etiology is divided in three sections. First, we summarize studies indicating that the likelihood to develop PTSD depends on the cumulative exposure to traumatic stressors and on individual predisposing risk factors, including a substantial genetic contribution to PTSD risk. Second, we focus on memory processes supposed to be involved in PTSD etiology and present evidence for PTSD-associated alterations in both implicit (fear conditioning, fear extinction) and explicit memory for emotional material. This is supplemented by a brief description of structural and functional alterations in memory-relevant brain regions in PTSD. Finally, we summarize a selection of studies indicating that genetic variations found to be associated with enhanced fear conditioning, reduced fear extinction or better episodic memory in human experimental studies can have clinical implications in the case of trauma exposure and influence the risk of PTSD development. Here, we focus on genes involved in noradrenergic (ADRA2B), serotonergic (SLC6A4), and dopaminergic signaling (COMT) as well as in the molecular cascades of memory formation (PRKCA and WWC1). This is supplemented by initial evidence that such memory-related genes might also influence the response rates of exposure-based psychotherapy or pharmacological treatment of PTSD, which underscores the relevance of basic memory research for disorders of altered memory functioning such as PTSD.

Barriers to accessing mental health care for refugees and asylum seekers in high-income countries: A scoping review of reviews mapping demand and supply-side factors onto a conceptual framework.

This study undertakes a scoping review of reviews on barriers to accessing mental health care for refugees and asylum seekers in high-income countries. By assessing mental health care access using the Levesque's conceptual framework, we identify barriers along the patient care pathway and highlight research gaps. Following PRISMA-ScR guidelines, 10 relevant systematic and scoping reviews were identified and analyzed. Seven common barriers were identified, that could be located across different stages of the conceptual framework. Demand-side barriers included: (1) refugees' understanding of mental illness, (2) fear of stigma, (3) lack of awareness of services, (4) attitudes towards formal treatment; while supply-side barriers comprised: (5) language barriers, (6) practical and structural issues, and (7) providers' attitudes and competence. There was a focus on demand-side barriers as key determinants for low service use. We observed a paucity of quantitative studies linking barriers and indicators of access to care. In the context of well-established mental health care systems, previous research has largely explained low access through peculiarities of refugees and asylum seekers, thereby neglecting the role of supply-side factors (including system structures and attitudes of service providers). We discuss how future research can critically question prevailing assumptions and contribute to rigorous evidence.

Low access and inadequate treatment in mental health care for asylum seekers and refugees in Germany-A prospective follow-up study over 12 months and a nationwide cross-sectional study.

Refugees experience elevated rates of mental health problems, but little is known about mental health service utilization and quality among asylum seekers and refugees in Europe. In a 12-month follow-up study of newly arrived refugees (N = 166, Mage = 32.38 years, 30.7% female) and a nationwide cross-sectional study (N = 579, Mage = 33.89 years, 36.2% female) of refugees who had been living in Germany for an average of 6 years, we examined objective need for mental health treatment, perceived need, access to treatment services, and adequacy of treatment. We defined minimally adequate mental health treatment according to the WHO World Mental Health Survey as ≥8 sessions of psychotherapy (minimally adequate psychotherapy) or pharmacotherapy plus ≥4 medical visits (minimally adequate pharmacotherapy). In both studies, two in three individuals screened for mental health symptoms and additionally perceived a need for professional treatment. Of those, less than half had contact to any service provider, with only 1 in 14 receiving minimally adequate psychotherapy. Overall, no more than one in seven of refugees in need received minimally adequate treatment. Despite a comprehensive mental health-care system, refugees' access to mental health care and the treatment provided are inadequate. Health policies are urgently needed to provide equitable mental health care for all.

School-based mental health screenings with Ukrainian adolescent refugees in Germany: Results from a pilot study.

Since the Russian invasion of Ukraine in February 2022, high numbers of Ukrainians, mostly women and children, have left the country. As of today, Germany has accepted more than one million refugees fleeing from Ukraine including ~200,000 children and adolescents registered in German schools. Since refugee minors are typically affected by high rates of mental health issues, the identification of potential psychological problems at an early stage after arrival is essential in order to make timely referrals for vulnerable youth to diagnostic or treatment services possible. The aim of the present study was to test the feasibility of a classroom-based mental health screening procedure and to assess symptoms of PTSD, depression, and anxiety in a small sample of adolescents who had fled to Germany. Forty-two adolescents (n = 20 girls) took part in the study. Screening results showed that more than half of the sample had elevated ratings in the Refugee Health Screener (RHS) and about 45% reported clinically significant levels of PTSD. Overall, the amount of both mental health problems and current worries related to the war was significantly higher in girls compared to boys. In general, screenings were well received by the adolescents. The findings of this pilot study point to a considerable level of mental health problems and distress in adolescent refugees affected by the recent war in Ukraine. Brief psychological screenings within the school setting might represent a promising approach to identifying potential mental health disorders as early as possible in newly arriving refugee youth.

Epigenetics of traumatic stress: The association of NR3C1 methylation and posttraumatic stress disorder symptom changes in response to narrative exposure therapy.

Epigenetic processes allow plasticity in gene regulation in response to significant environmental events. Accumulating evidence suggests that effective psychotherapy is accompanied by epigenetic changes, rendering DNA methylation a potential biomarker of therapy success. Due to the central role of glucocorticoid dynamics in stress regulation and the alteration of aversive memories, glucocorticoid receptors are likely involved in the molecular processes that are required to successfully treat Posttraumatic Stress Disorder (PTSD). This study aimed to investigate the relationship between methylation at the glucocorticoid receptor gene (NR3C1) and PTSD treatment success of evidence-based psychotherapy. A sample of N = 153 conflict survivors from Northern Uganda (98 females and 55 males) with PTSD were treated with Narrative Exposure Therapy (NET). Diagnostic interviews and saliva sampling took place at pretreatment and 4 and 10 months after treatment completion. We investigated potential associations between PTSD symptom development and methylation changes at 38 CpG sites spanning NR3C1 over the three times of measurement using the repeated measures correlation. After accounting for multiple comparisons, DNA methylation at CpG site cg25535999 remained negatively associated with PTSD symptoms. These results were followed up by mixed models as well as structural equation modelling. These analyses revealed that treatment responders had a significant cg25535999 methylation increase after treatment with NET. Furthermore, lower methylation at cg25535999 pretreatment predicted a higher symptom improvement. Our results suggest different epigenetic profile dynamics at NR3C1 cg25535999 in therapy responders compared to non-responders and underscore the central role of glucocorticoid signaling in trauma-focused therapy.

Welcome, how are you doing? - towards a systematic mental health screening and crisis management for newly arriving refugees.

Background: Compared to the general German population, refugees in Germany are a high-risk group for trauma spectrum disorders. Currently, many barriers exist for the implementation of a screen-and-treat approach for mental disorders as part of the routine health care provision during the early stage of the immigration process.Objective: The aim of the present study was to develop and test a systematic screening approach to identify individual refugees in need of mental health care during the initial immigration phase.Method: 167 newly arrived refugees underwent a screening interview with the Refugee Health Screener (RHS) carried out by Intercultural Therapy Assistants (ITAs). The ITAs were super-vised by psychologists at a reception centre in Bielefeld, Germany. A subsample of 48 persons partici-pated in clinical validation interviews.Results: Findings demonstrated the need for and feasibility of a systematic screening during the initial immigration phase. However, established cut-off values of the RHS had to be adapted and the screening procedure had to be adjusted due to the needs of a significant number of refugees in severe psychological crises.Conclusion: A systematic screening that is applied shortly after arrival facilitates the early identification of refugees at risk of developing mental disorders and may be helpful to prevent chronic symptom development and an aggravation of psychological crises.

A systematic complementary screening procedure during the initial immigration phase was found to be useful for the identification of refugees in need of mental health care.The procedure could be implemented both safely and efficiently in conjunction with the initial medical check-up for recently arrived refugees.Responding to the needs of the refugees immediately following their arrival in Germany, we adjusted the cut-off of the screening instrument and suggest to explicitly include a detection procedure for severe psychological crises.

The efficacy of Narrative Exposure Therapy for Children (KIDNET) as a treatment for traumatized young refugees versus treatment as usual: update to the study protocol for the multi-center randomized controlled trial YOURTREAT.

BACKGROUND: The trial YOURTREAT aims to compare the pragmatic, short-term psychotherapy Narrative Exposure Therapy for Children (KIDNET) with treatment as usual (TAU) for the treatment of young refugees in Germany. This update outlines changes made to the study protocol in response to the current COVID-19 pandemic with the aim of allowing the continuation of the clinical trial while ensuring the safety of the staff and the participants, maintaining methodological quality, and ensuring compliance with legal regulations. METHODS: The major amendments to the original study protocol include (1) the possibility of using telehealth technology for the conduction of diagnostic and therapy sessions, (2) a reduction of the diagnostic set, and (3) an increased flexibility in the time frame of the study protocol. DISCUSSION: The adaptations to the study protocol made it feasible to continue with the trial YOURTREAT during the COVID-19 pandemic. Although the diagnostic set had to be shortened, the primary outcomes and the main secondary outcomes remain unimpaired by the amendment. Therefore, we expect the trial to provide evidence regarding effective treatment options for young refugees in Germany, a population that has received little scientific attention so far and has only very limited access to mental health care in the German health care system. In light of the current pandemic, which globally increases the risk of mental problems, the situation for young refugees is likely to aggravate further. Thus, the clinical and social relevance of the present trial YOURTREAT is even more important in these particular times. TRIAL REGISTRATION: German Clinical Trials Register (Deutsches Register Klinischer Studien; DRKS) DRKS00017222 . Registered on May 15, 2019.

Sex differences in PTSD risk: evidence from post-conflict populations challenges the general assumption of increased vulnerability in females.

Background: Next to the dose-dependent effect of trauma load, female sex represents a well-established risk factor for PTSD. Exposure to particularly toxic traumatic event types, different coping styles, and biological risk factors are frequently listed as potential causes for the increased PTSD vulnerability in females. Nevertheless, sex differences have not been consistently observed in all study populations. Objective: To investigate sex differences in PTSD risk in post-conflict populations from different countries while considering trauma load. Method: In civilian post-conflict samples from Northern Uganda (N = 1665), Rwanda (N = 433), Syria (N = 974) and Sri Lanka (N = 165), we investigated sex differences in PTSD risk while taking trauma load into account. PTSD and trauma load were assessed using standardized diagnostic interviews. Potential sex differences in PTSD risk were analysed by logistic regression analyses considering trauma load. Results: Across all samples, males reported more traumatic events than females. Both sexes predominantly reported war-related traumatic events. Without considering trauma load, sex effects in PTSD risk were only detected in the Syrian sample. When taking trauma load into account, evidence for an increased PTSD vulnerability in females was found in the Syrian sample, and, to a much lesser extent, in the Northern Ugandan sample. Conclusion: In contrast to the literature, we did not find evidence for a general increased PTSD vulnerability in females. The dose-response effect of trauma load was a much stronger predictor of PTSD risk than sex across all samples.

Antecedentes: Junto al efecto dosis-dependiente de la carga traumática, el sexo femenino representa un factor de riesgo bien establecido para el desarrollo del trastorno de estrés postraumático (TEPT). La exposición a tipos de eventos particularmente tóxicos, diferentes estilos de afrontamiento y factores de riesgo biológicos se enumeran con frecuencia como causas potenciales del aumento de la vulnerabilidad al TEPT en las mujeres. Sin embargo, no se ha observado de manera consistente la diferencia según sexo en todas las poblaciones estudiadas.Objetivo: Investigar las diferencias según sexo para el desarrollo del TEPT en poblaciones post-conflicto de diferentes países teniendo en consideración la carga traumática.Métodos: Se investigaron diferencias en el TEPT según sexo tomando en consideración la carga traumática a partir de muestras post-conflicto de población civil en el norte de Uganda (N = 1665), Ruanda (N = 433), Siria (N = 947) y Sri Lanka (N = 165). El TEPT y la carga traumática se evaluaron empleando entrevistas diagnósticas. Se analizaron las potenciales diferencias según sexo para el riesgo de desarrollar el TEPT empleando un análisis de regresión logística y considerando la carga traumática.Resultados: En todas las muestras, los varones reportaron mayor número de eventos traumáticos que las mujeres. Ambos sexos reportaron predominantemente eventos traumáticos relacionados a la guerra. Dejando de lado la carga traumática, los efectos del sexo para el riesgo de desarrollar el TEPT solo se encontraron en la muestra siria. Cuando se toma en consideración la carga traumática, se encontró un incremento en la vulnerabilidad para el desarrollo del TEPT en mujeres dentro de la muestra siria y, en menor medida, en la del norte de Uganda.Conclusión: En contraste con la literatura, no se encontró evidencia de un incremento generalizado de la vulnerabilidad para el desarrollo del TEPT en mujeres. El efecto dosis-respuesta de la carga traumática fue un predictor mucho más fuerte para el riesgo del desarrollo del TEPT que el sexo en todas las muestras.

DNA methylation changes following narrative exposure therapy in a randomized controlled trial with female former child soldiers.

The aftermath of traumatization lives on in the neural and epigenetic traces creating a momentum of affliction in the psychological and social realm. Can psychotherapy reorganise these memories through changes in DNA methylation signatures? Using a randomised controlled parallel group design, we examined methylome-wide changes in saliva samples of 84 female former child soldiers from Eastern DR Congo before and six months after Narrative Exposure Therapy. Treatment predicted differentially methylated positions (DMPs) related to ALCAM, RIPOR2, AFAP1 and MOCOS. In addition, treatment associations overlapped at gene level with baseline clinical and social outcomes. Treatment related DMPs are involved in memory formation-the key agent in trauma focused treatments-and enriched for molecular pathways commonly affected by trauma related disorders. Results were partially replicated in an independent sample of 53 female former child soldiers from Northern Uganda. Our results suggest a molecular impact of psychological treatment in women with war-related childhood trauma.Trial registration: Addressing Heightened Levels of Aggression in Traumatized Offenders With Psychotherapeutic Means (ClinicalTrials.gov Identifier: NCT02992561, 14/12/2016).

Does cumulative exposure to traumatic stressors predict treatment outcome of community-implemented exposure-based therapy for PTSD?

Background: Posttraumatic Stress Disorder (PTSD) is associated with high levels of functional impairments such as difficulties in academic or occupational performance and in social relationships. With an increasing number of traumatic event types experienced (trauma load), PTSD risk increases in a dose-dependent manner. Accordingly, high rates of PTSD can impair the reconstruction process in post-conflict societies. In order to meet these high needs for mental health services in societies with little access to professional care, task shifting approaches and community-based interventions have been suggested. Narrative Exposure Therapy (NET) has been developed as a short and pragmatic exposure-based PTSD treatment that can be easily trained to lay personnel. Yet, it remains unclear whether NET can be effectively provided by trained lay counsellors even at high levels of trauma load. Objective: To investigate whether trauma load influences the treatment effectiveness of NET provided by trained and supervised local lay counsellors. Method: Linear mixed models were calculated to investigate the influence of trauma load on treatment effectiveness in a sample of N = 323 rebel war survivors from Northern Uganda with PTSD. Results: We found a strong reduction of PTSD symptoms following NET, which was not influenced by trauma load. However, individuals with higher levels of trauma load reported higher PTSD symptoms before therapy as well as 4 and 10 months following treatment completion compared to individuals with lower trauma load. Conclusions: Treatment with NET by lay counsellors is effective independent of trauma load. However, individuals with higher trauma load have a higher probability to show residual symptoms, which might require additional time, sessions or treatment modules.

Antecedentes: El trastorno de estrés traumático (TEPT) se asocia con altos niveles de discapacidad funcional, tales como dificultades en el desempeño académico uocupacional yen las relaciones sociales. Con un número creciente de los tipos de eventos traumáticos experimentados (carga traumática), el riesgo de TEPT aumenta en una forma dependiente de la dosis. De la misma forma, altas tasas de TEPT pueden afectar el proceso de reconstrucción en las sociedad post-conflicto. Para abordar estas crecientes necesidades por servicios de salud mental en sociedades con poco acceso acuidado profesional, se ha sugerido el enfoque de cambio de tareas ylas intervenciones basadas en la comunidad. La Terapia de Exposición Narrativa (NET en su sigla en inglés) ha sido desarrollada como un tratamiento de TEPT basado en la exposición, breve ypragmático que puede ser fácilmente entrenado al personal laico. Aun así, permanece incierto si la NET puede ser implementada efectivamente por consejeros laicos entrenados, incluso aaltos niveles de carga traumática.Objetivo: Investigar si la carga traumática influencia la efectividad del tratamiento de la NET proporcionado por consejeros laicos locales entrenados ysupervisados.Método: Los modelos mixtos lineales se calcularon para investigar la influencia de la carga traumática en la efectividad del tratamiento, en una muestra de N= 323 sobrevivientes de guerra rebelde desde Uganda del Norte con TEPT.Resultados: Encontramos una clara reducción de los síntomas TEPT luego de la NET, la cual no fue influenciada por la carga traumática. Sin embargo, los individuos con altos niveles de carga traumática reportaron altos niveles de síntomas TEPT antes de la terapia como también 4 y 10 meses luego del término del tratamiento comparado alos individuos con carga traumáticamás baja.Conclusiones: El tratamiento con la NET administrada por consejeros laicos es efectiva independiente de la carga traumática. Sin embargo, los individuos con carga traumáticamás alta tienen una probabilidadmás alta de mostrar síntomas residuales, los cuales podrían requerir tiempo, sesiones omódulos de tratamiento adicionales.

Integrated genetic, epigenetic, and gene set enrichment analyses identify NOTCH as a potential mediator for PTSD risk after trauma: Results from two independent African cohorts.

The risk of developing posttraumatic stress disorder (PTSD) increases with the number of traumatic event types experienced (trauma load) in interaction with other psychobiological risk factors. The NOTCH (neurogenic locus notch homolog proteins) signaling pathway, consisting of four different trans-membrane receptor proteins (NOTCH1-4), constitutes an evolutionarily well-conserved intercellular communication pathway (involved, e.g., in cell-cell interaction, inflammatory signaling, and learning processes). Its association with fear memory consolidation makes it an interesting candidate for PTSD research. We tested for significant associations of common genetic variants of NOTCH1-4 (investigated by microarray) and genomic methylation of saliva-derived DNA with lifetime PTSD risk in independent cohorts from Northern Uganda (N1 = 924) and Rwanda (N2 = 371), and investigated whether NOTCH-related gene sets were enriched for associations with lifetime PTSD risk. We found associations of lifetime PTSD risk with single nucleotide polymorphism (SNP) rs2074621 (NOTCH3) (puncorrected = 0.04) in both cohorts, and with methylation of CpG site cg17519949 (NOTCH3) (puncorrected = 0.05) in Rwandans. Yet, none of the (epi-)genetic associations survived multiple testing correction. Gene set enrichment analyses revealed enrichment for associations of two NOTCH pathways with lifetime PTSD risk in Ugandans: NOTCH binding (pcorrected = 0.003) and NOTCH receptor processing (pcorrected = 0.01). The environmental factor trauma load was significant in all analyses (all p < 0.001). Our integrated methodological approach suggests NOTCH as a possible mediator of PTSD risk after trauma. The results require replication, and the precise underlying pathophysiological mechanisms should be illuminated in future studies.

Evolutionary conserved role of neural cell adhesion molecule-1 in memory.

The neural cell adhesion molecule 1 (NCAM-1) has been implicated in several brain-related biological processes, including neuronal migration, axonal branching, fasciculation, and synaptogenesis, with a pivotal role in synaptic plasticity. Here, we investigated the evolutionary conserved role of NCAM-1 in learning and memory. First, we investigated sustained changes in ncam-1 expression following aversive olfactory conditioning in C. elegans using molecular genetic methods. Furthermore, we examined the link between epigenetic signatures of the NCAM1 gene and memory in two human samples of healthy individuals (N = 568 and N = 319) and in two samples of traumatized individuals (N = 350 and N = 463). We found that olfactory conditioning in C. elegans induced ncam-1 expression and that loss of ncam-1 function selectively impaired associative long-term memory, without causing acquisition, sensory, or short-term memory deficits. Reintroduction of the C. elegans or human NCAM1 fully rescued memory impairment, suggesting a conserved role of NCAM1 for memory. In parallel, DNA methylation of the NCAM1 promoter in two independent healthy Swiss cohorts was associated with memory performance. In two independent Sub-Saharan populations of conflict zone survivors who had faced severe trauma, DNA methylation at an alternative promoter of the NCAM1 gene was associated with traumatic memories. Our results support a role of NCAM1 in associative memory in nematodes and humans, and might, ultimately, be helpful in elucidating diagnostic markers or suggest novel therapy targets for memory-related disorders, like PTSD.

The efficacy of Narrative Exposure Therapy for Children (KIDNET) as a treatment for traumatized young refugees versus treatment as usual: study protocol for a multi-center randomized controlled trial (YOURTREAT).

BACKGROUND: Germany hosts a large number of refugees from war-affected countries. The integration of refugees, in particular young refugees from the Middle East, is one of the major current social challenges in Germany. Mental disorders, first of all post-traumatic stress disorder (PTSD) that results from war experiences, are common among young refugees and interfere with quality of life as well as functional integration. Evidence regarding effective treatment options for this population is scarce. In this trial, we aim to evaluate the pragmatic, short-term psychotherapy Narrative Exposure Therapy for Children (KIDNET) for the treatment of young refugees in Germany. METHODS: In a rater-blinded, multi-center, randomized-controlled trial, KIDNET is compared to treatment as usual (TAU) within the general health care system. A total number of 80 young refugees who fulfill the diagnostic criteria of PTSD will be randomized to either KIDNET or TAU. Diagnostic interviews will take place at baseline before treatment as well as 6 and 12 months thereafter. They will assess exposure to traumatic events, PTSD and comorbid symptoms, as well as parameters of integration. DISCUSSION: The results of this study should provide evidence regarding effective treatment options for young refugees in Germany, a population that has been understudied and received only limited access to mental health care so far. Next to the effects of treatment on mental health outcomes, integration parameters will be investigated. Therefore, this study should provide broad insights into treatment options for young refugees and their potential implications on successful integration. TRIAL REGISTRATION: German Clinical Trials Register (Deutsches Register Klinischer Studien; DRKS), ID: DRKS00017222. Registered on 15 May 2019.