Summary
In experiments on male Wistar rats it has been found that nifedipine administration at a dose of 10 mg/kg body weight i.p. daily for 20 days did not significantly increase the total amount of cytochrome P-450 but markedly increased the 7α-, 16β- and 6β-hydroxylation of androstendione in liver microsomes, suggesting the induction of cytochromes P-450HA1, P-450UB1, and P-450IQA1, respectively. The induction of cytochrome P-450IHB1 was also confirmed immunochemically with polyclonal antibodies against cytochrome P-450HB1/B2.
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Abbreviations
- AD:
-
androstendione
- HPLC:
-
high performance liquid chromatography
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TheNomenclature System of Nebert et al. (1) is used throughout this paper to designate cytochrome P-450 forms.
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Koleva, M., Stoytchev, T., Gulyaeva, L. et al. Induction of cytochrome P-450 isozymes upon repeated administration of nifedipine. European Journal of Drug Metabolism and Pharmacokinetics 16, 103–106 (1991). https://doi.org/10.1007/BF03189945
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DOI: https://doi.org/10.1007/BF03189945