Journal
PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE
Volume 224, Issue 4, Pages 302-308Publisher
BLACKWELL SCIENCE INC
DOI: 10.1046/j.1525-1373.2000.22435.x
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Funding
- NIAAA NIH HHS [AA 08116-08] Funding Source: Medline
- NATIONAL INSTITUTE ON ALCOHOL ABUSE AND ALCOHOLISM [R01AA008116] Funding Source: NIH RePORTER
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The purpose of this investigation was to assess the effect of chlormethiazole treatment on liver damage in the experimental rat intragastric ethanol-feeding model of alcoholic liver disease. Chlormethiazole has been used in the treatment of alcoholic withdrawal and has been shown to inhibit cytochrome P4502E1, Since treatment of experimental alcoholic liver disease with CYP2E1 inhibitors had an ameliorating effect on liver injury in the rat, chlormethiazole was used to see if it had a similar effect. Rats fed ethanol for 2 months had significantly less liver injury when chlormethiazole was added to the diet, fed intragastrically. The CYP2E1 apoprotein levels, which were increased by ethanol feeding, were also increased when chlormethiazole was fed with ethanol. Chlormethiazole inhibited the Increase in the ethanol-induced CYP2E1 activity in vivo, as measured by chlorzoxazone B-hydroxylation, but did not effect the level of CYP2E1 apoprotein, Likewise, the reduction in proteasome proteolytic enzyme activity produced by ethanol feeding was blunted in chlormethiazole-fed rats. These results support the conclusion that chlormethiazole treatment partially protects the liver from injury by inhibiting CYP2E1 activity in vivo.
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