Title : Impact of Probe Substrate Selection on Cytochrome P450 Reaction Phenotyping Using the Relative Activity Factor.

Pub. Date : 2017 Feb

PMID : 27934636






1 Functional Relationships(s)
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1 The RAF value for CYP3A4 or CYP2C9 derived from a particular P450-selective probe reaction was applied to calculate RAF-scaled CLint for other probe reactions of the same P450 isoform in a crossover manner and compared with the measured HLM CLint When RAF derived from midazolam or nifedipine was used for CYP3A4, the ICR for testosterone 6beta-hydroxylation was 31 and 25, respectively, suggesting significantly diverse interactions of CYP3A4 probes with the testing systems. testosterone 6beta cytochrome P450 family 2 subfamily C member 9 Homo sapiens