Associations of ALDH2 and ADH1B genotypes with response to alcohol in Asian Americans
2005
Objective: Individuals with alcohol dependence are less likely to possess variant alleles of the alcohol-metabolizing genes, aldehyde dehydrogenase (ALDH2*2) and alcohol dehydrogenase (ADH1B*2), than non-alcohol-dependent controls. It is hypothesized that the mechanism through which these alleles protect against alcohol dependence is by causing elevations in acetaldehyde, which in turn cause an increased response to alcohol. Previous research has shown that individuals with ALDH2*2 demonstrate enhanced reactions to alcohol compared with those without this genetic variant, but evidence that ADH1B*2 is associated with a greater alcohol response is mixed. This study was designed to determine whether the ADH1B genotype is associated with more intense reactions to alcohol after controlling for the ALDH2 genotype. Method: Participants (N = 101) were Asian American college students. Each was evaluated using objective and subjective measures before and after ingestion of alcohol and placebo beverages. Results: Pa...
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