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Genome-wide association studies identify genetic loci related to alcohol consumption in Korean men

Authors
Baik, InkyungCho, Nam H.Kim, Seong HwanHan, Bok-GheeShin, Chol
Issue Date
4월-2011
Publisher
AMER SOC NUTRITION-ASN
Citation
AMERICAN JOURNAL OF CLINICAL NUTRITION, v.93, no.4, pp.809 - 816
Indexed
SCIE
SCOPUS
Journal Title
AMERICAN JOURNAL OF CLINICAL NUTRITION
Volume
93
Number
4
Start Page
809
End Page
816
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/112724
DOI
10.3945/ajcn.110.001776
ISSN
0002-9165
Abstract
Background: Genome-wide association (GWA) studies regarding the quantitative trait of alcohol consumption are limited. Objective: The objective of the study was to explore genetic loci associated with the amount of alcohol consumed. Design: We conducted a GWA study with discovery data on single nucleotide polymorphisms (SNPs) for 1721 Korean male drinkers aged 40-69 y who were included in an urban population-based cohort. Another sample that comprised 1113 male drinkers who were from an independent cohort enrolled in a rural area served as a resource for replication. At baseline (18 June 2001 through 29 January 2003), members of both cohorts provided information on average daily alcohol consumptions, and their DNA samples were collected for genotyping. Results: We tested 315,914 SNPs of discovery data by using multivariate linear regression analysis adjusted for age and smoking, and 12 SNPs on chromosome 12q24 had genome-wide significant associations with alcohol consumption; adjusted P values by using Bonferroni correction were 1.6 x 10(-5) through 5.8 x 10(-46). We observed most SNPs in intronic regions and showed that the genes that harbor SNPs were C12orf51, CCDC63, MYL2, OAS3, CUX2, and RPH3A. In particular, signals in or near C12orf51, CCDC63, and MYL2 were successfully replicated in the test for 317,951 SNPs; rs2074356 in C12orf51 was in high linkage disequilibrium with SNPs in ALDH2, but other SNPs were not. Conclusions: In a GWA study, we identified loci and alleles highly associated with alcohol consumption. The findings suggest the need for further investigations on the genetic propensity for drinking excessive amounts of alcohol. Am J Clin Nutr 2011; 93: 809-16.
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