Li, Sicong; Li, Xuting; Yuan, Dingsheng; Wang, Bin; Yang, Rui; Zhang, Min; Li, Jinliang; Zeng, Fuqiang published the artcile< Effects of paeoniflorin on the activities and mRNA expression of rat CYP1A2, CYP2C11 and CYP3A1 enzymes in vivo>, Related Products of 112-63-0, the main research area is paeoniflorin mRNA expression cytochrome enzyme invivo study; CYP450; drug-metabolizing enzymes; midazolam; paeoniflorin; phenacetin; tolbutamide.
Paeoniflorin is the major constituent in extracts of the paeony root, the purpose of the present study was to assess the effects of paeoniflorin on the activities and mRNA expression of the rat hepatic drug-metabolizing enzymes cytochrome P 450 (CYP1A2), CYP2C11 and CYP3A1 in vivo. Sprague-Dawley (SD) male rats were treated with paeoniflorin at the dosage of 25, 50 and 100 mg/kg or 0.9% sodium chloride solution by intragastric administration for 7 days, then were given probe drugs phenacetin (CYP1A2), tolbutamide (CYP2C11), or midazolam (CYP3A1) orally on the eighth day. Blood samples were collected at various times, and the plasma concentrations of the probe drugs were estimated with ultra-high-performance liquid chromatog. The mRNA expression levels of rat hepatic CYP1A2, CYP2C11 and CYP3A1 were analyzed with real-time PCR. The pharmacokinetic results indicated that paeoniflorin inhibits the activities of CYP1A2, CYP2C11 and CYP3A1 in vivo. The effect was most pronounced on CYP3A1, according to the United States Food and Drug Administration classification of inhibitors of CYP3A, it reached the category of moderate inhibition. The mRNA expression levels of 3 CYP enzymes were also tended to be inhibited. We conclude that paeoniflorin can inhibit the activities of CYP1A2, CYP2C11 and CYP3A1 in vivo, which may affect the metabolism of drugs that are primarily dependent on these pathways.
Xenobiotica published new progress about Blood plasma. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
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