Combination of polymorphic variants in serotonin transporter and monoamine oxidase-A genes may influence the risk for early-onset alcoholism

Psychiatry Res. 2012 Dec 30;200(2-3):1041-3. doi: 10.1016/j.psychres.2012.04.031. Epub 2012 May 23.

Abstract

The combinatory effect of polymorphisms in serotonin transporter and monoamine oxidase-A genes on the aetiopathogenesis of alcoholism was investigated in a sample of 714 individuals. Increased frequency of subjects having three 'suspected' genotypes (5-HTTLPR-LL, STin2-1010 and MAO-A 3-repeat allele) was found among type-2 alcoholic patients (P=0.0189). Results highlight serotonergic/genetic contribution to early-onset alcoholism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age of Onset
  • Alcoholism / genetics*
  • Alleles
  • Gene Frequency
  • Genetic Predisposition to Disease*
  • Genotype
  • Humans
  • Male
  • Monoamine Oxidase / genetics*
  • Polymorphism, Genetic
  • Serotonin Plasma Membrane Transport Proteins / genetics*

Substances

  • Serotonin Plasma Membrane Transport Proteins
  • Monoamine Oxidase