Article
Roles of two allelic variants (Arg144Cys and Ile359Leu) of cytochrome P4502C9 in the oxidation of tolbutamide and warfarin by human liver microsomes.
Xenobiotica; the fate of foreign compounds in biological systems - 1 Feb 1998
Yamazaki H, Inoue K, Shimada T
Abstract excerpt
1. Tolbutamide methyl hydroxylation and racemic warfarin 7-hydroxylation activities were determined in liver microsomes of 39 Japanese and 45 Caucasians genotyped for the cytochrome P450 (P450 or CYP) 2C9 gene into three groups, namely the wild-type (Arg144.Ile359), and two heterozygous Cys allele (Cys144.Ile359) and Leu allele (Arg144.Leu359) variants. 2. Good correlations were found between tolbutamide methyl...
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