Norepinephrine transporter gene polymorphism is not associated with susceptibility to alcohol dependence

Psychiatry Res. 2002 Aug 30;111(2-3):229-33. doi: 10.1016/s0165-1781(02)00145-2.

Abstract

Abnormalities in monoamine neurotransmission have been implicated in the pathogenesis of alcoholism, mood disorders and schizophrenia. Murine norepinephrine transporter gene (NET) has been mapped to a region on chromosome 8 where a quantitative trait locus for ethanol sensitivity. Therefore we tested whether norepinephrine transporter (NET) gene variants confer susceptibility to either alcohol dependence or severe alcohol withdrawal symptoms. There is a highly polymorphic silent G1287A mutation in the NET gene. In our study 157 alcoholics and 185 healthy unrelated matched control subjects were analyzed for a silent G1287A mutation. No significant differences in allele and genotype distribution between control subjects f(A)=0.33 and alcoholics f(A)=0.29 were found. No significant results were found in more homogenous subgroups, i.e. alcoholics with severe alcohol withdrawal (seizures, delirium), early onset age<26 nor dependent patients with positive familial history of alcoholism. These results suggest that the NET gene polymorphism in exon 9 accession number: mRNA: NM_001043, genomic contig.: NT_019610, is unlikely to be involved in the susceptibility to alcoholism and severe alcohol withdrawal.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Alcohol Withdrawal Delirium / genetics
  • Alcoholism / genetics*
  • Alleles
  • DNA Mutational Analysis
  • Exons
  • Female
  • Gene Frequency / genetics
  • Genetic Predisposition to Disease / genetics*
  • Genotype
  • Humans
  • Male
  • Middle Aged
  • Molecular Sequence Data
  • Norepinephrine Plasma Membrane Transport Proteins
  • Polymorphism, Genetic / genetics*
  • Polymorphism, Restriction Fragment Length
  • RNA, Messenger / genetics
  • Symporters / genetics*

Substances

  • Norepinephrine Plasma Membrane Transport Proteins
  • RNA, Messenger
  • SLC6A2 protein, human
  • Symporters

Associated data

  • RefSeq/NM_001043
  • RefSeq/NT_019610