Polygenic risk for externalizing disorders: Gene-by-development and gene-by-environment effects in adolescents and young adults.

ABSTRACT: In this project, we aimed to bring large-scale gene identification findings into a developmental psychopathology framework. Using a family-based sample, we tested whether polygenic scores for externalizing disorders-based on single nucleotide polymorphism weights derived from genome-wide association study results in adults (n = 1,249)-predicted externalizing disorders, subclinical externalizing behavior, and impulsivity-related traits adolescents (n = 248) and young adults (n = 207), and whether parenting and peer factors in adolescence moderated polygenic risk to predict externalizing disorders. Polygenic scores predicted externalizing disorders in adolescents and young adults, even after controlling for parental externalizing disorder history. Polygenic scores also predicted subclinical

SUBMITTER: Salvatore JE 

PROVIDER: S-EPMC4371857 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature