Genome-wide association studies identify 77 loci for suicidality and provide novel biological insights.

ABSTRACT: Suicidality is heritable and a leading cause of global morbidity and mortality, yet its biological etiology remains largely elusive. We conducted multi-ancestry genome-wide association study meta-analyses of suicidal ideation (259,747 cases), suicide attempt (64,993 cases), suicide death (9,197 cases), and suicidal behavior (suicide attempt/ death, 75,300 cases), across 54 cohorts (e.g., the Psychiatric Genomics Consortium, Million Veteran Program, UK Biobank). We identified 77 significant loci across meta-analyses, including 59 previously unreported for suicidality. SNP-based heritability ranged from 2.0-6.7% and there were strong, yet incomplete, genetic correlations between suicidality phenotypes (0.70-0.88). Fine-mapping prioritized 27 putative causal SNPs and 20 credible genes. Enrich

SUBMITTER: Colbert SMC 

PROVIDER: S-EPMC12633560 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature