Abstract
Alcohol consumption is a moderately heritable trait, but the genetic basis in humans is largely unknown, despite its clinical and societal importance. We report a genome-wide association study meta-analysis of similar to 2.5 million directly genotyped or imputed SNPs with alcohol consumption (gram per day per kilogram body weight) among 12 population-based samples of European ancestry, comprising 26,316 individuals, with replication genotyping in an additional 21,185 individuals. SNP rs6943555 in autism susceptibility candidate 2 gene (AUTS2) was associated with alcohol consumption at genome-wide significance (P = 4 x 10(-8) to P = 4 x 10(-9)). We found a genotype-specific expression of AUTS2 in 96 human prefrontal cortex samples (P = 0.026) and significant (P < 0.017) differences in expression of AUTS2 in whole-brain extracts of mice selected for differences in voluntary alcohol consumption. Downregulation of an AUTS2 homolog caused reduced alcohol sensitivity in Drosophila (P < 0.001). Our finding of a regulator of alcohol consumption adds knowledge to our understanding of genetic mechanisms influencing alcohol drinking behavior.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 7119-7124 |
| Number of pages | 6 |
| Journal | Proceedings of the National Academy of Sciences of the U.S.A. |
| Volume | 108 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2011 |
Research programs
- EMC MGC-02-96-01
- EMC MM-01-25-01
- EMC MM-01-39-09-A
- EMC NIHES-01-64-01
- EMC NIHES-01-64-02
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