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Gen Pharmacol. 1993 Mar;24(2):489-95.

Comparison of alloxan and streptozotocin induced diabetes in rats: differential effects on microsomal drug metabolism.

Author information

1
Department of Biochemistry, Faculty of Medicine, University of Chile, Santiago.

Abstract

1. Liver microsomes from alloxan or streptozotocin diabetic rats displayed differential drug metabolizing abilities in vitro. 2. Only streptozotocin liver microsomes exhibited changes in the cytochrome P-450 normal spectral characteristics. 3. Overall testosterone metabolism was significantly increased in streptozotocin diabetic liver microsomes, whereas it was markedly decreased in alloxan diabetes. Mixed function oxidase activity for aminopyrine was similar. 4. Glucuronidation reaction rates towards morphine, oestrone and p-nitrophenol were also markedly distinct in both models as well as after insulin treatment. 5. Results suggest that diabetogenic agents modify sex related isoenzymes of cytochrome P-450 differently and selectively reduce the synthesis of certain UDP-glucuronyltransferase forms.

PMID:
8482528
[Indexed for MEDLINE]

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