Effects of antineoplastics, antibiotics and antidiabetics on acetaldehyde metabolism after alcohol ingestion

Acta Medica Okayama
S KanH Ishizu

Abstract

The main purpose of this study was to evaluate the inhibitory effects of 5-fluorouracil antineoplastics, cephem antibiotics containing the methyltetrazolylthiol (MTT) group and antidiabetics on aldehyde dehydrogenase (ALDH) activity in vivo and in vitro. In in vivo experiments, rats were given a 100 mg/kg dose of drugs (10 mg/kg for glibenclamide) orally or intraperitoneally. When each drug was administered singly immediately after an oral administration of 1.5 g/kg ethanol, only carmofur, an antineoplastic, produced marked increases in blood acetaldehyde concentrations. This action was also noted when ethanol was ingested 15 h after administration. The remaining drugs did not increase blood acetaldehyde concentrations. When rats were treated with carmofur at 12 h intervals for 3 consecutive days and were given 1.5 g/kg ethanol after the final treatment, blood acetaldehyde concentrations were elevated more significantly than with a single administration of carmofur. Furthermore, daily administration of cephem antibiotics containing the MTT group, latamoxef, cefamandole, cefoperazone and cefbuperazone, significantly increased blood acetaldehyde concentrations. Daily administration of sulfonylurea antidiabetics, chlorpropamide an...Continue Reading

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