GENETICS AND CELL BIOLOGY The Short Allele of the Serotonin Transporter Promoter Polymorphism Influences Relapse in Alcohol Dependence
2008
Aims: The short (S) allele of the serotonin transporter gene promoter polymorphism (5-HTTLPR) contributes to the risk of alcohol dependence and co-occurring clinical features. We studied the putative link between this allele and relapse. Methods: 48 alcohol-dependent male patients were recruited and genotyped for the 5-HTTLPR. Relapse to alcohol drinking was monitored during 3 months after standardized withdrawal. Results: The S allele was significantly associated with relapse (p = 0.008) while no other factor that was measured played a significant role. Conclusions: The S allele of the 5-HTTLPR polymorphism may influence the risk of relapse in abstinent alcohol-dependent patients, possibly through intermediate phenotypes.
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