We have studied the activation of aflatoxin B1 by hamster liver microsomes and purified hamster cytochrome P-450 isozymes using a umu mutagen test. The hamster liver microsomes or S-9 fractions were much more active than rat liver microsomes or S-9…
The expression of the rat cytochrome P450 CYP4 family was studied in hepatic tumors. In most of the primary and transplantable hepatic tumors studied, lauric acid omega-hydroxylase activity associated with the CYP4A subfamily enzymes decreased. The…
