Violence exposure, conflict, and health outcomes in inner-city African American adolescents

Exposure to community violence as a mechanism linking neighborhood socioeconomic disadvantage and neural responses to reward

A growing literature links socioeconomic disadvantage and adversity to brain function, including disruptions in reward processing. Less research has examined exposure to community violence (ECV) as a specific adversity related to differences in reward-related brain activation, despite the prevalence of community violence exposure for those living in disadvantaged contexts. The current study tested whether ECV was associated with reward-related ventral striatum (VS) activation after accounting for familial factors associated with differences in reward-related activation (e.g. parenting and family income). Moreover, we tested whether ECV is a mechanism linking socioeconomic disadvantage to reward-related activation in the VS. We utilized data from 444 adolescent twins sampled from birth records and residing in neighborhoods with above-average levels of poverty. ECV was associated with greater reward-related VS activation, and the association remained after accounting for family-level markers of disadvantage. We identified an indirect pathway in which socioeconomic disadvantage predicted greater reward-related activation via greater ECV, over and above family-level adversity. These findings highlight the unique impact of community violence exposure on reward processing and provide a mechanism through which socioeconomic disadvantage may shape brain function.

Patterns of Adverse Childhood Experiences and Psychiatric Disorders Among Adolescents with ADHD: A Latent Class Analysis

There is limited existing research on whether specific combinations of Adverse Childhood Experiences (ACEs) are associated with different psychiatric disorders among adolescents with ADHD. This study aimed to address this gap by identifying classes of ACEs and examining their association with behavioral problems, anxiety, and depression in adolescents with ADHD aged 11-17 (n = 1,806), using data from the 2018 National Survey of Children's Health (NSCH). A latent class analysis revealed a four-class solution: (1) low-risk ACEs (61.6%), (2) moderate-risk ACEs (25.2%), (3) high discrimination and neighborhood violence exposure (7.6%), and (4) high-risk ACEs (5.6%). The "high-risk ACEs" and the "high discrimination and neighborhood violence exposure" class showed a higher likelihood of behavioral problems and depression, and anxiety and depression respectively. These findings provide some insight into the ACE patterns that are more likely to be associated with mental health problems among adolescents with ADHD.

Parent-adolescent coping with prolonged geopolitical conflict: A qualitative analysis focusing on distress and resilience

Adolescents who were raised in conflict-ridden areas may face unique challenges that may also impact their transition to adulthood. We explored coping processes, distress symptoms, and resilience resources of late adolescents and their parents residing in Israeli communities bordering Gaza and exposed to ongoing conflict-related violence. We conducted in-depth interviews with late adolescents and one of their parents (n = 8 dyads, 16 individual interviews). Four main themes emerged: (a) dynamic adaptation - complex movement between coping styles; (b) distress symptoms; (c) siblingship - the central role of siblings in shaping adolescent resilience; and (d) community impacts - the ways in which social and physical environment can foster resilience. The findings broaden existing coping theories and offer practical implications for practitioners providing support to populations exposed to prolonged conflicts.

Social Support Coping for African American Adolescents: Effect of a Culturally Grounded Randomized Controlled Trial Intervention

The effect of the Adapted-Coping with Stress (A-CWS) intervention on social support coping was examined, using a randomized controlled trial design. The participants were 410 ninth-grade students (ages 14 to 16 years and mostly African American) living in low-resourced neighborhoods. Participants were randomly assigned 1:1 to either the A-CWS intervention or a standard care control condition. All participants were assessed at their schools before implementation of the intervention, at intervention completion, and again at 6- and 12-month post-intervention. Engagement in social support coping was examined in both intention-to-treat and treatment-as-received samples (i.e., intervention participants who attended at least 12 A-CWS treatment sessions and participants in the standard care control condition), using latent growth models. In intention-to-treat analyses, no significant treatment effects were identified. In treatment-as-received analyses, results revealed a significant association between social support coping and treatment condition; levels of social support coping decreased over time in the control condition, but they remained relatively stable in the treatment condition. The results indicate adequate intervention adherence and efficacy of the A-CWS to sustain social support coping within a sample of youth at high risk for stress exposure and associated disorders.Clinical Trial Registration: clinicaltrials.gov identifier: NCT0395445.

DNA methylation and exposure to violence among African American young adult males

Exposure to violence (ETV) has been linked to epigenomics mechanisms such as DNA methylation (DNAm). We used epigenetic profiling of blood collected from 32 African American young adult males who lived in Washington DC to determine if changes in DNAm at CpG sites affiliated with nervous and immune system were associated with exposure to violence. Pathway analysis of differentially methylated regions comparing high and low ETV groups revealed an enrichment of gene sets annotated to nervous system and immune ontologies. Many of these genes are known to interact with each other which suggests DNAm alters gene function in the nervous and immune system in response to ETV. Using data from a unique age group, young African American adult males, we provide evidence that lifetime ETV could impact DNA methylation in genes impacted at Central Nervous System and Immune Function sites.

METHOD

Methylation analysis was performed on DNA collected from the blood of participants classified with either high or low lifetime ETV. Illumina®MethylationEPIC Beadchips (~850k CpG sites) were processed on the iScan System to examine whole-genome methylation differences. Differentially methylated CpG-sites between high (n ​= ​19) and low (n ​= ​13) groups were identified using linear regression with violence and substance abuse as model covariates. Gene ontology analysis was used to identify enrichment categories from probes annotated to the nearest gene.

RESULTS

A total of 595 probes (279 hypermethylated; 316 hypomethylated) annotated to 383 genes were considered differentially methylated in association with ETV. Males with high ETV showed elevated methylation in several signaling pathways but were most impacted at Central Nervous System and Immune Function affiliated sites. Eight candidate genes were identified that play important biological roles in stress response to violence with HDAC4 (10%), NR4A3 (11%), NR4A2 (12%), DSCAML1(12%), and ELAVL3 (13%) exhibiting higher levels in the low ETV group and DLGAP1 (10%), SHANK2 (10%), and NRG1(11%) having increased methylation in the high ETV group. These findings suggest that individuals subjected to high ETV may be at risk for poor health outcomes that have not been reported previously.

What Racism Has to Do with It: Understanding and Reducing Sexually Transmitted Diseases in Youth of Color

Sexually transmitted diseases (STDs) are high in populations of color compared to Whites. High-risk sexual behaviors are widely viewed as the key contributors to the levels of STDs, especially in adolescents and young adults. This article situates the sexual risk behaviors of Black, Indigenous, and other young people of color within the framework of racism. It begins with an overview of racial inequities in common STDs and shows how racism gives rise to several risk factors for high-risk sexual behaviors. These risk factors for STDs identified in prior research are best understood as adaptations to the challenges and constraints faced by youth in socially disadvantaged environments. Both social adversity and the mental health problems that it triggers can lead to risky sexual behaviors. Drawing on findings from prior research with youth of color, this paper describes the needed interventions that can markedly reduce STDs and their risk factors. It also describes needed research on interventions that could contribute to the knowledge and understanding of the adverse conditions fueled by racism that affect youth of color, their health, and their communities.