| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
The influences of genetic variation of CYP3A4 on the inhibitory kinetics of its inhibitors varied among the inhibitors and affected by the probe substrate used. The inhibitor manners (patterns) of metabolic inhibitors contained in fruit juice are different among CYP isoforms, i.e. CYP3A4, 2C9 and 2C19. The research should be focused upon the mode of inhibition that is clinically most relevant.
Using newly developed cell lines stably expressing a transporter OATP1A2 or OATP2B1, some unidentified inhibitory ingredient(s) for these transporters are considered to be contained in some fractions of grapefruit juice.
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