Genotyping of wild-type cytochrome P450 2A6 and whole-gene deletion using human blood samples and a multiplex real-time polymerase chain reaction method with dual-labeled probes.

Abstract excerpt

BACKGROUND: Genetic polymorphisms of human cytochrome P450 2A6 (CYP2A6) are one of the determinants of smoking behavior and/or tobacco-related lung cancer risk in male Japanese smokers. To help identify those at high risk, we developed a multiplex real-time polymerase chain reaction (PCR)-based genotyping method with dual-labeled probes to detect wild-type and whole-gene deletion of CYP2A6 directly from blood...

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