Genetic Variants of Alcohol Metabolizing Enzymes and Alcohol-Related Liver Cirrhosis Risk



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Ayuso, Pedro and García Martín, Elena and Cornejo García, José A. and Agúndez, José A. G. and Ladero, José María (2021) Genetic Variants of Alcohol Metabolizing Enzymes and Alcohol-Related Liver Cirrhosis Risk. Journal of Personalized Medicine, 11 (5). p. 409. ISSN 2075-4426

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Alcohol-related liver disease (ARLD) is a major public health issue caused by excessive alcohol consumption. ARLD encompasses a wide range of chronic liver lesions, alcohol-related liver cirrhosis being the most severe and harmful state. Variations in the genes encoding the enzymes, which play an active role in ethanol metabolism, might influence alcohol exposure and hence be considered as risk factors of developing cirrhosis. We conducted a case-control study in which 164 alcohol-related liver cirrhosis patients and 272 healthy controls were genotyped for the following functional single nucleotide variations (SNVs): ADH1B gene, rs1229984, rs1041969, rs6413413, and rs2066702; ADH1C gene, rs35385902, rs283413, rs34195308, rs1693482, and rs35719513; CYP2E1 gene, rs3813867. Furthermore, copy number variations (CNVs) for ADH1A, ADH1B, ADH1C, and CYP2E1 genes were analyzed. A significant protective association with the risk of developing alcohol-related liver cirrhosis was observed between the mutant alleles of SNVs ADH1B rs1229984 (Pc value = 0.037) and ADH1C rs283413 (Pc value = 0.037). We identified CNVs in all genes studied, ADH1A gene deletions being more common in alcohol-related liver cirrhosis patients than in control subjects, although the association lost statistical significance after multivariate analyses. Our findings support that susceptibility to alcohol-related liver cirrhosis is related to variations in alcohol metabolism genes.

Item Type:Article
Uncontrolled Keywords:alcohol-related liver disease; cirrhosis; single nucleotide variations; copy number variations; alcohol dehydrogenase
Subjects:Medical sciences > Medicine
Medical sciences > Medicine > Gastroenterology and Hepatology
ID Code:72100
Deposited On:04 May 2022 15:32
Last Modified:04 May 2022 16:45

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