Résumé
Objective: To study the effect of cytochrome P-450 4F2 (CYP4F2, rs2108622) gene polymorphisms in patients with warfarin for initial doses in 7 days. Methods: A total of 271 patients treated by warfarin were studied. The CYP4F2 gene polymorphisms were assessed by real-time PCR, the average initial warfarin doses in 7 days and the time of international normalized ratio (INR) ifrst arrived to therapeutic range were recorded. The differences of initial warfarin doses and the time of INR ifrst arrived to therapeutic range among CYP4F2 gene polymorphisms of CC, CT and TT genotypes were analyzed by statistical method. Results: The average initial warfarin doses among CYP4F2 polymorphisms of TT and CT/TT were higher than CC, P Conclusion: CYP4F2 polymorphisms inlfuenced the initial warfarin doses in 7 days in relevant patients.