title: Induction of the hepatic cytochrome P-450 dependent monooxygenase system by cis- and trans-5,10-dihydrogen mirex.
abstract: The hepatic induction of cytochrome P-450-dependent monooxygenase components by cis- and trans-5,10-dihydrogen mirex was studied in male and female laboratory rats. There were sex-dependent differences between the two isomeric derivatives of mirex. The cis-isomer significantly increased aniline hydroxylase activity in the female, but not in the male. In contrast, aminopyrine N-demethylase was significantly increased by the cis-isomer in both sexes. The trans-isomer increased the hydroxylase and N-demethylase activities in both sexes. The cis-isomer induced NADPH-cytochrome c reductase in the female, and the trans-isomer did not. Both isomers induced hepatic reductase activity in the male rat. No sex-dependent differences in the hepatic induction of cytochrome P-450 were observed for either isomer.
mesh_terms: D000633:Aminopyrine N-Demethylase / Q000096:biosynthesis; D000815:Aniline Hydroxylase / Q000096:biosynthesis; D000818:Animals; D003577:Cytochrome P-450 Enzyme System; D004790:Enzyme Induction; D005260:Female; D007306:Insecticides / Q000494:pharmacology*; D008099:Liver / Q000201:enzymology*; D008297:Male; D008917:Mirex / Q000031:analogs & derivatives / Q000378:metabolism / Q000494:pharmacology*; D010105:Oxygenases / Q000096:biosynthesis*; D051381:Rats; D011919:Rats, Inbred Strains; D012737:Sex Factors
chemical_list: D007306:Insecticides; C040024:5,10-dihydromirex; D003577:Cytochrome P-450 Enzyme System; D010105:Oxygenases; D000815:Aniline Hydroxylase; D000633:Aminopyrine N-Demethylase; D008917:Mirex