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  • Title: Pharmacokinetic changes of ipriflavone in rats with acute renal failure induced by uranyl nitrate.
    Author: Chung HJ, Lee MG.
    Journal: Biopharm Drug Dispos; 2006 Oct; 27(7):345-51. PubMed ID: 16902944.
    Abstract:
    Pharmacokinetic parameters of ipriflavone were compared after intravenous (20 mg/kg) and oral (200 mg/kg) administration in control rats and in rats with acute renal failure induced by uranyl nitrate (U-ARF rats). It was expected that the time-averaged nonrenal clearance (Cl(nr)) of ipriflavone in U-ARF rats could be significantly slower than in the control rats, since it was reported that ipriflavone was metabolized via the hepatic microsomal cytochrome P450 (CYP) 1A1/2 and 2C11 and the expression and mRNA level of CYP1A2 were not changed, but those of CYP2C11 were decreased in U-ARF rats compared with control rats. Unexpectedly, after intravenous administration in U-ARF rats, the Cl(nr) of ipriflavone was significantly faster than in the controls (40.8 compared with 29.0 ml/min/kg). This may be due to an increase in the glucuronide conjugate formation of ipriflavone metabolites in U-ARF rats. After oral administration of ipriflavone in U-ARF rats, the AUC(0-24 h) was significantly smaller (194 compared with 295 microg min/ml) than in the controls.
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