Excretion of the N(2)-glucuronide conjugate of 2-hydroxyamino-1-methyl-6-phenylimidazo[4,5-b]pyridine in urine and its relationship to CYP1A2 and NAT2 activity levels in humans.

Abstract excerpt

2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a mutagenic and carcinogenic heterocyclic aromatic amine formed in meat products during cooking. The genotoxity of PhIP requires an initial cytochrome P450-mediated N-oxidation followed by N-O-esterification catalyzed generally by N-acetyltransferases and sulfotransferases. This study examined the urinary excretion of...

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