Transancestral GWAS of alcohol dependence reveals common genetic underpinnings with psychiatric disorders.
Nat Neurosci
; 21(12): 1656-1669, 2018 12.
Article
in En
| MEDLINE
| ID: mdl-30482948
ABSTRACT
Liability to alcohol dependence (AD) is heritable, but little is known about its complex polygenic architecture or its genetic relationship with other disorders. To discover loci associated with AD and characterize the relationship between AD and other psychiatric and behavioral outcomes, we carried out the largest genome-wide association study to date of DSM-IV-diagnosed AD. Genome-wide data on 14,904 individuals with AD and 37,944 controls from 28 case-control and family-based studies were meta-analyzed, stratified by genetic ancestry (European, n = 46,568; African, n = 6,280). Independent, genome-wide significant effects of different ADH1B variants were identified in European (rs1229984; P = 9.8 × 10-13) and African ancestries (rs2066702; P = 2.2 × 10-9). Significant genetic correlations were observed with 17 phenotypes, including schizophrenia, attention deficit-hyperactivity disorder, depression, and use of cigarettes and cannabis. The genetic underpinnings of AD only partially overlap with those for alcohol consumption, underscoring the genetic distinction between pathological and nonpathological drinking behaviors.
Full text:
1
Database:
MEDLINE
Main subject:
Genetic Predisposition to Disease
/
Polymorphism, Single Nucleotide
/
Alcoholism
/
Mental Disorders
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
Nat Neurosci
Journal subject:
NEUROLOGIA
Year:
2018
Type:
Article
Affiliation country:
United States