Prioritization of potential causative genes for schizophrenia in placenta.

Our earlier work has shown that genomic risk for schizophrenia converges with early life complications in affecting risk for the disorder and sex-biased neurodevelopmental trajectories. Here, we identify specific genes and potential mechanisms that, in placenta, may mediate such outcomes. We performed TWAS in healthy term placentae (N = 147) to derive candidate placental causal genes that we confirmed with SMR; to search for placenta and schizophrenia-specific associations, we performed an analogous analysis in fetal brain (N = 166) and additional placenta TWAS for other disorders/traits. The analyses in the whole sample and stratifying by sex ultimately highlight 139 placenta and schizophrenia-specific risk genes, many being sex-biased; the candidate molecular mechanisms converge on the nutrient-sensing capabilities of placenta and trophoblast invasiveness. These genes also implicate the Coronavirus-pathogenesis pathway and showed increased expression in placentae from a small sample of SARS-CoV-2-positive pregnancies. Investigating placental risk genes for schizophrenia and candidate mechanisms may lead to opportunities for prevention that would not be suggested by study of the brain alone.

Research Capacity Training on Environmental Health and Noncommunicable Diseases in the Country of Georgia: Challenges and Lessons Learned during the COVID-19 Pandemic.

COVID-19 presented challenges for global health research training programs. The Clean Air Research and Education (CARE) program, which aims to enhance research capacity related to noncommunicable diseases and environmental health in the country of Georgia, was launched in 2020-as the COVID-19 pandemic began. At its foundation is mentorship and mentored research, alongside formal didactic training, informal training/meetings, and other supports. Current analyses examined CARE's initial 1.5 years (e.g., program benefits, mentorship relationships) using data from an evaluation survey among trainees and faculty in January 2022. Trainees (100% response rate: n = 12/12; 4 MPH, 8 PhD) and faculty (86.7% response rate: n = 13/15; 7 Georgia-based, 6 United States-based) rated factors related to mentor-mentee relationships highly, particularly mutual consideration of each other's thoughts, opinions, and perspectives; one major challenge was completing goals planned. Trainees and faculty identified several growth experiences and program benefits (e.g., skills development, expanding professional network) but also identified challenges (e.g., meeting program demands, communication gaps, unclear expectations)-exacerbated by the pandemic. Findings underscore the importance of strong mentorship relationships and that the pandemic negatively impacted communication and clarity of expectations. Given the likely ongoing impact of the pandemic on such programs, program leaders must identify ways to address these challenges.