Identification and Validation of a Novel Gene Associated with Alcohol Dependence Among Chinese Population

Overview

Journal iScience

Publisher Cell Press

Date 2024 Oct 21

PMID 39429782

Authors

Xiaoqiang Shi

Yan Wang

Zhongli Yang

Wenji Yuan

Ming D Li

Affiliations

Soon will be listed here.

Abstract

Alcohol dependence is a heritable disorder, yet its genetic basis and underlying mechanisms remain poorly understood, especially in Chinese population. In this study, we conducted gene-based and transcript-based association tests and found a significant association between expression in the cortex and hippocampus of the brain and alcohol use in a cohort of 1,329 individuals with Chinese ancestry. Further analysis using the effective-median-based Mendelian randomization framework for inferring the causal genes (EMIC) revealed a causal relationship between expression in the frontal cortex and alcohol use. Moreover, leveraging extensive European alcohol dependence data, our gene association tests and EMIC analysis showed that expression in the nucleus accumbens was significantly associated with alcohol dependence. Finally, animal studies indicated that knockout mice lacked conditioned place preference for alcohol. Together, our combined human genetic and animal studies indicate that plays a crucial role in alcohol dependence.

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