Genetic variability in CYP2E1 and catalase gene among currently and formerly alcohol-dependent male subjects
Plemenitaš Ilješ, Anja ...
Aims: The present study explored whether specific single-nucleotide polymorphisms in alcohol metabolic pathway are associated with alcohol dependence or alcohol-related psychopathological symptoms. ...Methods: Three groups of male unrelated subjects were included: 101 currently alcohol-dependent patients, 100 formerly alcohol-dependent subjects and 97 healthy controls. The following questionnaires were implemented: AUDIT, Zung Depression and Anxiety scale, Brief Social Phobia Scale, Yale-Brown Obsessive Compulsive Scale, Obsessive Compulsive Drinking Scale and Buss-Durkee Hostility Inventory. All the subjects were genotyped for CYP2E1 c.-1053C>T and CAT c.-262C>T. Results: Statistically significant differences in the distribution of genotypes and alleles for CAT c.-262C>T polymorphism were observed among the three investigated groups. We observed a higher frequency of CAT -262T allele in alcohol-dependent subjects (OR = 1.74, 95% CI = 1.164-2.610). Among currently dependent patients CAT -262T allele carriers had higher AUDIT scores (P = 0.023), while CYP2E1-1053T allele carriers had significantly higher YBOCS-obsession subscale scores (P = 0.005) and Zung Anxiety Scale scores (P = 0.011). Conclusions: Our findings suggest that the CAT c.-262C>T genetic polymorphism influences the susceptibility to alcohol dependence and severity of alcohol dependence, while CYP2E1 c.-1053C>T polymorphism influences the expression of obsessive-compulsive and anxiety symptoms.
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