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  • Title: Hepatic phase II biotransformation in C57Bl/KsJ db/db mice: comparison to that in Swiss Webster and 129 REJ mice.
    Author: Watkins JB, Klueber KM.
    Journal: Comp Biochem Physiol C Comp Pharmacol Toxicol; 1988; 90(2):417-21. PubMed ID: 2903001.
    Abstract:
    1. Cytochrome P-450 concentrations were similar in male and female carrier (db/+) and diabetic (db/db) mice. Benzphetamine N-demethylase and styrene oxide hydrolase activities were 47 and 65% lower in db/+ than in db/db mice. 2. UDP-Glucuronosyltransferase activity toward 1-naphthol, estrone and diethylstilbestrol was not different between db/db and db/+, but was 40% higher in db/db mice toward testosterone. 3. Glutathione S-transferase activity toward 1-chloro-2,4-dinitrobenzene and ethacrynic acid was 47 and 59% lower in db/db mice than in male db/+ mice. Female db/+ mice had similar activities to those found in diabetic animals. 4. The differences in enzyme activity between hyperinsulinemic and normal animals suggest that insulin can influence both phase I and phase II biotransformations. 5. Enzyme activities in db/+ and db/db mice were compared to those in 129 REJ and Swiss Webster mice.
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