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Article in Chinese | WPRIM | ID: wpr-335814


To explore the possible mechanism of liver injury, the effects of Ploygoni Multiflori Caulis and its extractive on the function of bilirubin-associated transporters were investigated in normal (N) and idiosyncratic (LPS) rats (M). The normal and LPS rats were respectively administrated powder of Ploygoni Multiflori Caulis, its extractive and same volume of 0.5% CMC-Na solution for 7 d. BSP, a substrate of the transporters of Oatp1a1 and Oatp1b2 was selected, and its pharmacokinetic parameters of intravenous injection were determined to examined the activity these transporters. Meanwhile the mRNA expressions of transporters were detected. Compared with N-blank control group, besides M-powder group, the Cmax has no significantly different from other groups, t1/2, AUC0-t and AUC0-∞ were significantly increased, and CL were significantly decreased. However, compared with N- blank control group, AST and ALT decreased significantly. The expression of Oatp1a1, Oatp1b2 and MRP2 mRNA was significantly decreased (P<0.05), but there was no act synergistically when Ploygoni Multiflori Caulis and extractive were combined with LPS. The function of Oatp1a1, Oatp1b2 and MRP2 in rats were significantly inhibited by Ploygoni Multiflori Caulis and extractive, which may be an important cause of hepatotoxicity.