Effects of aging and rifampicin pretreatment on the pharmacokinetics of human cytochrome P450 probes caffeine, warfarin, omeprazole, metoprolol and midazolam in common marmosets genotyped for cytochrome P450 2C19.

作者: Akiko Toda , Shotaro Uehara , Takashi Inoue , Masahiro Utoh , Takashi Kusama

DOI: 10.1080/00498254.2017.1353716

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摘要: Abstract1. The pharmacokinetics were investigated for human cytochrome P450 probes after single intravenous and oral administrations of 0.20 1.0 mg/kg, respectively, caffeine, warfarin, omeprazole, metoprolol midazolam to aged (10–14 years old, n = 4) or rifampicin-treated/young (3 years n = 3) male common marmosets all genotyped as heterozygous a 2C19 variant.2. Slopes the plasma concentration–time curves administration warfarin slightly, but significantly (two-way analysis variance), decreased in compared with young marmosets. mean hepatic clearances determined by silico fitting individual pharmacokinetic models group were, 23% 56% smaller than those group.3. Significantly enhanced omeprazole evident pretreated rifampicin (25 mg/kg daily 4 da...

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