Title : In vitro assessment of inhibition by natural polyphenols of metabolic activation of procarcinogens by human CYP1A1.

Pub. Date : 2003 Apr 11

PMID : 12670496






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1 In vitro assessment of inhibition by natural polyphenols of metabolic activation of procarcinogens by human CYP1A1. Polyphenols cytochrome P450 family 1 subfamily A member 1 Homo sapiens
2 We compared the effects of 11 representative natural polyphenols, which normally occur in food, on different activities of CYP1A1, namely epoxidation of 7,8-dihydrodiol-benzo[a]pyrene, the terminal step in the activation leading to the ultimate carcinogenic diolepoxides, hydroxylation of benzo[a]pyrene, and EROD. Polyphenols cytochrome P450 family 1 subfamily A member 1 Homo sapiens
3 The results demonstrate that the inhibitory effects of dietary polyphenols on CYP1A1 activity depend on both the structure of the inhibitor and the type of the reaction and substrate used in the assay. Polyphenols cytochrome P450 family 1 subfamily A member 1 Homo sapiens