Association of substance dependence phenotypes in the COGA sample
Year: 2014
Type: article
Study design: Observational Study
Abstract: Alcohol and drug use disorders are individually heritable (50%). Twin studies indicate that alcohol and substance use disorders share common genetic influences, and therefore may represent a more heritable form of addiction and thus be more powerful for genetic studies. This study utilized data from 2322 subjects from 118 European-American families in the Collaborative Study on the Genetics of Alcoholism sample to conduct genome-wide association analysis of a binary and a continuous index of general substance dependence liability. The binary phenotype (ANYDEP) was based on meeting lifetime criteria for any DSM-IV dependence on alcohol, cannabis, cocaine or opioids. The quantitative trait (QUANTDEP) was constructed from factor analysis based on endorsement across the seven DSM-IV criteria for each of the four substances. Heritability was estimated to be 54% for ANYDEP and 86% for QUANTDEP. One single-nucleotide polymorphism (SNP), rs2952621 in the uncharacterized gene LOC151121 on chromosome 2, was associated with ANYDEP (P = 1.8 × 10(-8) ), with support from surrounding imputed SNPs and replication in an independent sample [Study of Addiction: Genetics and Environment (SAGE); P = 0.02]. One SNP, rs2567261 in ARHGAP28 (Rho GTPase-activating protein 28), was associated with QUANTDEP (P = 3.8 × 10(-8) ), and supported by imputed SNPs in the region, but did not replicate in an independent sample (SAGE; P = 0.29). The results of this study provide evidence that there are common variants that contribute to the risk for a general liability to substance dependence.
Source: Addiction Biology
DOI: 10.1111/adb.12153
Authors: Leah Wetherill, Arpana Agrawal, Manav Kapoor, Sarah Bertelsen, Laura J. Bierut, Andrew Brooks, Danielle Dick, Michie Hesselbrock, Victor Hesselbrock, Daniel L. Koller, Nhung Le, John I. Nurnberger, Jessica E. Salvatore, Marc Schuckit, Jay A. Tischfield, Jen-Chyong Wang, Xiaoling Xuei, Howard J. Edenberg, Bernice Porjesz, Kathleen Bucholz, Alison M. Goate, Tatiana Foroud
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
Funders: National Institutes of Health, U.S. Public Health Service, National Institute on Alcohol Abuse and Alcoholism, National Heart, Lung, and Blood Institute, National Institute on Drug Abuse, National Human Genome Research Institute, National Cancer Institute, National Center for Advancing Translational Sciences
Awards: G1145171843, Genes, Environments & Interventions: Understanding and Addressing Alcohol Misuse, Indiana Clinical and Translational Sciences Institute, Study of Addiction: Genetics and Environment, The Collaborative Genetic Study of Nicotine Dependence, Genome Wide Association Coordinating Center, Case Control Candidate Gene Study of Addiction, Genetically-informed designs of externalizing behavior and romantic relationships, JH/CIDR Genotyping for Genome-Wide Association Studies, G6177097893, FAMILY STUDY OF COCAINE DEPENDENCE, DELINEATING THE ROLE OF GENETIC INFLUENCES ON CANNABIS INVOLVEMENT, Collaborative Study on the Genetics of Alcoholism (COGA).
OpenAlex ID: W2116787219