A genetic variant in the microRNA-146a gene is associated with susceptibility to alcohol use disorders.
Eur Psychiatry 2014;
29:288-92. [PMID:
24630744 DOI:
10.1016/j.eurpsy.2014.02.002]
[Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/18/2013] [Accepted: 02/02/2014] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND
Polymorphisms in the microRNA (miRNA) regulatory pathways are novel functional genetic variants whose association with alcoholism susceptibility has not been previously studied. Given the potential relationship between certain miRNAs and alcohol use disorders (AUDs), this study was designed to explore the association between two polymorphisms within hsa-miR-146a and hsa-miR-196a2 genes and susceptibility to these diseases.
METHODS
Three hundred and one male patients with AUDs and 156 sex-matched healthy volunteers were enrolled. Polymorphisms were genotyped using TaqMan(®) PCR assays. Allele and genotype frequencies were compared between groups and logistic regression analysis was also performed to analyze the model of inheritance.
RESULTS
There was a significantly higher prevalence of allele C carriers (47.8%) of the miR-146a G>C polymorphism (rs2910164) among patients with AUDs when compared with controls (35.9%), and multivariable logistic regression analysis showed that the C allele was associated with these AUDs (OR=1.615, 95% CI 1.067-2.442; P=0.023). Neither the genotype nor the allele distribution of miR-196a2 polymorphism (rs11614913) was significantly different between groups.
CONCLUSIONS
This is the first genetic association study to explore the relationship of miRNA polymorphisms with AUDs and to show an association of the miR-146a C>G rs2910164 allelic variant with this disease.
Collapse