Listening to the Voices of Gay and Bisexual Men and Other Men Who Have Sex with Men in Kenya: Recommendations for Improved HIV Prevention Programming

Young gay and bisexual men and other men who have sex with men (GBMSM) are a key population at high risk for new human immunodeficiency virus (HIV) infections in Kenya; thus, increased efforts are necessary to reduce their health risks. This qualitative study describes recommendations offered by young GBMSM in Kenya regarding the development and delivery of culturally appropriate HIV prevention services. Both young GBMSM Community Members and Peer Educators recommend that future HIV prevention efforts enhance economic empowerment, provide mental health and substance use services, and incorporate arts-based health promotion strategies. In addition, participants recommended that public health professionals increase the ease of access to HIV prevention services for GBMSM and that researchers disseminate findings from HIV prevention research back to the community.

Evaluating traumatic event scoring schemas for their predictive value to concurrent diagnostic profiles: Texas Childhood Trauma Research Network

BACKGROUND

To prospectively chart pathways of risk and resiliency following childhood trauma studies need to address three limitations of prior work: 1) recruit beyond social service/ treatment settings; 2) include broad spectrum of trauma types and 3) cast a broad longitudinal measurement framework of both clinical diagnoses and traumatic exposures. The Texas-Childhood Trauma Research Network (TX-CTRN) is a multi-site collaboration that addresses these limitations. In this baseline-only report, we examined domains of trauma and evaluated the concurrent predictive validity of various traumatic event scoring schemas for clinical diagnoses.

METHODS

Broad-base recruitment of 8-20 year-olds (N = 1289) included trauma centers, emergency departments, pediatric and primary care clinics, and other community settings. Assessments were comprehensive and based on clinical interviews by trained research interviewers.

RESULTS

Factor analyses supported a five-factor solution of trauma domains including unintentional/acute, intentional/interpersonal, bullying, in-home versus community witnessed interpersonal harms. Trauma burden scoring schemas were examined for their predictive superiority. Domain-specific counts of traumas that met DSM-5 post-traumatic-stress disorder (PTSD) Criterion-A was the best overall schema in distinguishing among youth with no diagnosis, comorbidities, those with depression, suicidality, substance misuse, and PTSD.

LIMITATIONS

There were no assessments of neglect.

CONCLUSIONS

Findings largely aligned with earlier studies on the relative importance of intentional interpersonal traumas and showed bullying may be an important source of traumatic stress that independently adds to prediction of several diagnoses and should be considered in clinical practice.

Current maternal depression associated with worsened children's social outcomes during middle childhood: Exploring the role of positive affect socialization

BACKGROUND

Maternal depression negatively predicts aspects of the mother-child relationship and social functioning in offspring. This study evaluated interrelations between mothers' depression history and current severity with dynamic indices of positive affect socialization and indices of offspring' social outcomes.

METHODS

N = 66 mother-child dyads in which approximately 50 % of mothers had a history of maternal depression were recruited. Children were 6-8 years old and 47.7 % male. Dyads completed a positive interaction task, which was coded for mother and child positive affect. Mothers and children reported on peer functioning and social problems and children reported on the quality of their best friendships at 1-year follow-up.

RESULTS

Current level of maternal depression, but not depression history, was related to more social problems and lower best friend relationship quality. Indices of positive affect socialization were not related to history or current levels of maternal depression, or social outcomes, with the exception of maternal depression history predicting greater likelihood of mothers joining their children in expressing positive affect. Exploratory, supplementary analysis revealed that this may be due to treatment history among these mothers.

LIMITATIONS

Conclusions should be tempered by the small sample size, which limited the types of analyses that were conducted.

CONCLUSION

Results suggest that the effect of maternal depression on aspects of child social outcomes could be specific to current levels. Our data also did not support previously found associations between maternal depression and positive affect socialization. Results suggest positive implications for the effect of treatment for maternal depression for mother-child dynamics.

Small Steps over time: A longitudinal usability test of an automated interactive text messaging intervention to support self-management of depression and anxiety symptoms

BACKGROUND

Digital mental health interventions (DMHIs) offer potential solutions for addressing mental health care gaps, but often suffer from low engagement. Text messaging is one promising medium for increasing access and sustaining user engagement with DMHIs. This paper examines the Small Steps SMS program, an 8-week, automated, adaptive text message-based intervention for depression and anxiety.

METHODS

We conducted an 8-week longitudinal usability test of the Small Steps SMS program, recruiting 20 participants who met criteria for major depressive disorder and/or generalized anxiety disorder. Participants used the automated intervention for 8 weeks and completed symptom severity and usability self-report surveys after 4 and 8 weeks of intervention use. Participants also completed individual interviews to provide feedback on the intervention.

RESULTS

Participants responded to automated messages on 70 % of study days and with 85 % of participants sending responses to messages in the 8th week of use. Usability surpassed established cutoffs for software that is considered acceptable. Depression symptom severity decreased significantly over the usability test, but reductions in anxiety symptoms were not significant. Participants noted key areas for improvement including addressing message volume, aligning message scheduling to individuals' availability, and increasing the customizability of content.

LIMITATIONS

This study does not contain a control group.

CONCLUSIONS

An 8-week automated interactive text messaging intervention, Small Steps SMS, demonstrates promise with regard to being a feasible, usable, and engaging method to deliver daily mental health support to individuals with symptoms of anxiety and depression.

Learning ADC maps from accelerated radial k-space diffusion-weighted MRI in mice using a deep CNN-transformer model

PURPOSE

To accelerate radially sampled diffusion weighted spin-echo (Rad-DW-SE) acquisition method for generating high quality ADC maps.

METHODS

A deep learning method was developed to generate accurate ADC maps from accelerated DWI data acquired with the Rad-DW-SE method. The deep learning method integrates convolutional neural networks (CNNs) with vision transformers to generate high quality ADC maps from accelerated DWI data, regularized by a monoexponential ADC model fitting term. A model was trained on DWI data of 147 mice and evaluated on DWI data of 36 mice, with acceleration factors of 4× and 8× compared to the original acquisition parameters.

RESULTS

Ablation studies and experimental results have demonstrated that the proposed deep learning model generates higher quality ADC maps from accelerated DWI data than alternative deep learning methods under comparison when their performance is quantified in whole images as well as in regions of interest, including tumors, kidneys, and muscles.

CONCLUSIONS

The deep learning method with integrated CNNs and transformers provides an effective means to accurately compute ADC maps from accelerated DWI data acquired with the Rad-DW-SE method.

Toward an understanding of glucose metabolism in radial glial biology and brain development

Decades of research have sought to determine the intrinsic and extrinsic mechanisms underpinning the regulation of neural progenitor maintenance and differentiation. A series of precise temporal transitions within progenitor cell populations generates all the appropriate neural cell types while maintaining a pool of self-renewing progenitors throughout embryogenesis. Recent technological advances have enabled us to gain new insights at the single-cell level, revealing an interplay between metabolic state and developmental progression that impacts the timing of proliferation and neurogenesis. This can have long-term consequences for the developing brain's neuronal specification, maturation state, and organization. Furthermore, these studies have highlighted the need to reassess the instructive role of glucose metabolism in determining progenitor cell division, differentiation, and fate. This review focuses on glucose metabolism (glycolysis) in cortical progenitor cells and the emerging focus on glycolysis during neurogenic transitions. Furthermore, we discuss how the field can learn from other biological systems to improve our understanding of the spatial and temporal changes in glycolysis in progenitors and evaluate functional neurological outcomes.

Maternal anxiety during pregnancy predicts infant attention to affective faces

BACKGROUND

Prenatal maternal anxiety is a known influence on offspring development. General anxiety and pregnancy-related anxiety (a distinct type of anxiety encompassing fears associated with pregnancy) are associated with offspring socioemotional development, with potential consequences for later emotional and behavioral problems. This study examines whether maternal pregnancy-related and general anxiety relate to infant attention to affective faces, a process which plays an integral role in early socioemotional development.

METHODS

Participants included 86 mothers and their 6-month-old infants (56.3 % female). Mothers completed measures of pregnancy-related and general anxiety three times through gestation. Infants' attention to affective faces was assessed with an eye-tracking task during which a series of face pairs were presented (happy, angry, or sad face paired with a neutral face). Overall attention measures included attention-holding (total looking time) and attention-orienting (latency to faces); affect-biased attention measures included proportion of total looking time to emotional faces and latency difference score.

RESULTS

Higher maternal pregnancy-related anxiety across gestation predicted decreased infant attention-holding to affective faces [F(1,80) = 7.232, p = .009, partial η2 = 0.083]. No differences were found in infant attention-orienting or affect-biased attention.

LIMITATIONS

Reliance on a correlational study design precludes the ability to make causal inferences.

CONCLUSIONS

Maternal pregnancy-related anxiety is an important predictor of child outcomes. We provide novel evidence that pregnancy-related anxiety predicts infant attention to emotional faces, behaviors which have important implications for socioemotional development. Providers may consider pregnancy-related anxiety as a target for screening and treatment that may benefit both pregnant individual and offspring.

Recommendations for Improving Oral Pre-exposure Prophylaxis Implementation and Social Marketing in Ugandan Fisherfolk Communities: A Qualitative Exploration

Background: HIV is hyperendemic among fisherfolk in Sub-Saharan Africa, especially around Lake Victoria, Uganda. Purpose/Research Design: We conducted cross-sectional semi-structured interviews about oral pre-exposure prophylaxis (PrEP) implementation with 35 Ugandan fisherfolk (15 women, 20 men) and 10 key stakeholders (healthcare providers, policymakers, community leaders). We used a directed content analysis approach based on implementation science and social marketing frameworks. Results: Participants showed high acceptability for PrEP. Anticipated barriers among fisherfolk included stigma (due to similar medications/packaging as HIV treatment); misconceptions; mobility, competing needs, poverty, and partner conflict. Anticipated provider barriers included insufficient staffing and travel support. Recommendations included: change PrEP packaging; integrate PrEP with other services; decrease PrEP refill frequency; give transportation resources to providers; train more healthcare workers to provide PrEP to fisherfolk; and use positively framed messages to promote PrEP. Conclusions: Results can inform policymakers and healthcare organizations on how to overcome barriers to PrEP scale-up in most at-risk populations with poor healthcare access.

Dentate Gyrus Microstructure Is Associated With Resilience After Exposure to Maternal Stress Across Two Human Cohorts

BACKGROUND

Maternal stress (MS) is a well-documented risk factor for impaired emotional development in offspring. Rodent models implicate the dentate gyrus (DG) of the hippocampus in the effects of MS on offspring depressive-like behaviors, but mechanisms in humans remain unclear. Here, we