Objectives: The association of blood pressure and levels of serum lipids, liver enzymes, blood glucose and aldehyde dehydrogenase 2 (ALDH2) with drinking habit was examined in Japanese men. Methods: The subjects were 264 men aged 39 to 80 years who were classified into the ALDH2 deficiency or sufficiency group using the ethanol patch test and the Tokyo University ALDH2 Phenotype Screening Test. A self-administered questionnaire including drinking habit was used. Blood pressure and the levels of biochemical markers in groups with ALDH2 sufficiency, ALDH2 deficiency and drinking habit were compared using multiple regression models for adjusting age, smoking habit, physical exercising habit and body mass index. Results: The levels of serum high-density lipoprotein cholesterol, triglycerides, aspartate aminotransferase (AST) and gamma-glutamyl transpeptidase (γ-GTP) were significantly higher in current drinkers of 20 g of ethanol or more per day than in nondrinkers of the ALDH2 sufficiency group. The levels of serum AST and γ-GTP in current drinkers of 20 g of ethanol or more per day, and fasting blood sugar in current drinkers of less than 20 g of ethanol per day were significantly higher than those in nondrinkers of the ALDH2 deficiency group. Conclusions: These results suggest that alcohol consumption increases the levels of serum lipids and liver enzymes in ALDH2-sufficient individuals and liver enzymes and blood glucose levels in ALDH2-deficient individuals.
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