J Korean Soc Biol Psychiatry.  1997 Jun;4(1):43-47.

Allelic Association of the Dopamine D2Receptor in Korean Alcoholics

• Lee KJ
• Lee MS
• Kwak DI

Abstract

The author attempted to allelic association between the a1 allele of Dopamine D2 receptor and alcoholism in Korean. The allelic disribution of Taq I polymorphism of the D2 dopamine receptor gene with alcoholism was examined in 67 Korean alcoholics and compared with 100 Korean controls. In alcoholics, the numbers of alcoholics with A1A1, A1A2 and A2A2 were 11(16.4%), 30(44.8%) and 26(38.8%) respectively and in control with A1A1, A1A2 and A2A2 were 17(17.0%), 42(42.0%), respectively. The prevalence of the A1 allele in alcoholics was 61.2% and 59.0% in controls. And the frequency of the A1 allele in alcoholics and controls were 0.39 and 0.38, respectively. There was not significant difference in the frequency of the A1 allele between alcoholics and controls. This data suggest that the A1 allele is not associated with alcoholism in Koreans. The author conclude that our data do not support on allelic association between the A1 allele at Dopamine D2 receptor and alcoholism. Further systemized studies will be necessary to determine whether the role of allele of Dopamine D2 receptor is major effect gene or modifying effect gene in the pathogenesis of alcoholism.

MeSH Terms

Alcoholics*
Alcoholism
Alleles
Dopamine*
Humans
Prevalence
Receptors, Dopamine
Receptors, Dopamine D2
Dopamine
Receptors, Dopamine
Receptors, Dopamine D2