Plant-based dietary patterns and genetic susceptibility to obesity in the CARTaGENE cohort
Researchers explored whether adherence to three plant-based dietary indices (PDIs) mediated or moderated genetic susceptibility to obesity. The study included 7,037 adults from the CARTaGENE cohort. Obesity outcomes were found to be significantly associated with overall- and healthy-PDIs and polygenic risk scores (PRSs). Adherence to PDIs neither mediated nor moderated genetic susceptibility to obesity. Higher levels of meat consumption were positively associated with obesity, while increased levels of whole grain intake were negatively associated with obesity outcomes.
Global Biobank analyses provide lessons for developing polygenic risk scores across diverse cohorts
The researchers assessed the performance of polygenic risk scores (PRSs) in predicting disease risk across diverse global populations using data from the Global Biobank Meta-analysis Initiative (GBMI). They constructed PRSs using two methods: pruning and thresholding (P + T) and PRS-continuous shrinkage (CS). Data from nine biobanks, including the Ontario Health Study, were analyzed for 14 different disease endpoints. Results showed that PRS-CS generally outperformed the P + T method, particularly for diseases with higher SNP-based heritability.
Global Biobank Meta-analysis Initiative: Powering genetic discovery across human disease
L’Initiative mondiale de méta-analyse des biobanques est un réseau collaboratif de 23 biobanques, représentant plus de 2,2 millions de participants consentants dont les données génétiques sont liées aux dossiers de santé électroniques. Cet effort de collaboration améliorera le pouvoir des études d’association pangénomiques pour les maladies, profitera aux maladies peu étudiées et améliorera la prédiction des risques.
The National Cancer Institute Cohort Consortium: An International Pooling Collaboration of 58 Cohorts from 20 Countries
Le Consortium de cohortes de l’INC a été créé en 2001 et rassemble 58 cohortes d’épidémiologie du cancer de 20 pays pour mener des recherches de regroupement à grande échelle. Le présent article décrit la structure, la gouvernance, les méthodes de travail et les cohortes participantes (y compris CanPath), ainsi que les publications et les activités du consortium.