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  • Title: Altered activity of hepatic mixed-function mono-oxygenase enzymes in streptozotocin-induced diabetic rats.
    Author: Reinke LA, Stohs SJ, Rosenberg H.
    Journal: Xenobiotica; 1978 Oct; 8(10):611-9. PubMed ID: 152519.
    Abstract:
    1. In streptozotocin-induced diabetic male rats, hepatic microsomal aminopyrine N-demethylase activity was depressed, whereas aniline hydroxylase activity and cytochrome P-450 content were increased over control values. 2. In diabetic female rats, hepatic microsomal aminopyrine N-demethylase activity, aniline hydroxylase activity, biphenyl 4-hydroxylase activity, and cytochrome P-450 content were increased over control values. 3. Insulin treatment of diabetic male and female rats antagonized all physical and biochemical abnormalities of the diabetic state; 4. Methyl analogues of streptozotocin did not produce a diabetic state when injected into female rats, and resulted in no changes in aminopyrine N-demethylase activity, aniline hydroxylase activity, or cytochrome P-450 content. 5. Insulin treatment of non-diabetic female rats resulted in slight decreases in aminopyrine N-demethylase and aniline hydroxylase activities, but no changes in cytochrome P-450 content. These observations suggest that insulin primarily influences drug metabolism of diabetic animals through correction of the insulin-deficient diabetic state.
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