Drug and Alcohol Dependence
Volume 88, Issues 2-3 , 11 May 2007, Pages 130-137
Several studies have demonstrated a significant association between the A1 allele of the TaqIA polymorphism and various phenotypes of alcoholism, others have not, and two studies have shown the reversed association, where the A2 allele was associated with higher levels of alcohol consumption.
We sought to test for an association between early onset (in childhood or adolescence) alcohol use disorders and the DRD2 TaqIA polymorphism and to resolve some of the hypothesized explanations for previous negative results, utilizing a larger sample than many previous studies.
We did not find support for an association between the TaqIA polymorphism and early onset alcohol use disordersREAD FULL ABSTRACT
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