接受静脉内剂量后,雷公藤内酯(TP)血浆浓度在小鼠中迅速下降。注射2小时后,雷公藤内酯浓度降至低于所有三组的定量下限。在对照组和治疗组之间进行参数比较,以评估P-gp抑制对雷公藤内酯醇暴露和消除的影响。用mdr1a-siRNA处理可显著增强雷公藤内酯血浆暴露,Cmax从413±74增加到510±94 ng / mL(P <0.05),AUC从103.5±9.6增加到154.3±30.2 ng?h / mL (P <0.05)。在伴随Tariquidar的同时,AUC显著增加,从对照的103.5±9.6到雷公藤内酯+ Tariquidar组的145.9±24.6 ng?h / mL(P <0.05)。因此,小鼠雷公藤内酯的总体清除率显著下降,从对照的9564±1024.2 mL / min / kg降至6576.4±1438.5(P <0.05)和5755.4±1200.1 mL / min / kg(P <0.05)。雷公藤内酯+ Tariquidar和Triptolide + mdr1a-siRNA组分别为[4]。
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用Tripterin(Celastrol)(1-3mg / kg /天,腹膜内注射,1-31天)治疗携带PC-3肿瘤的裸鼠导致肿瘤生长的显著抑制(65-93%)[1]。用3和6 mg / kg Tripterin(Celastrol)治疗后,丙二醛(MDA)水平分别显著下降35.2%和36.7%(P <0.05)。用3和6mg / kg Tripterin(Celastrol)治疗显著恢复GSH水平(P <0.05)至几乎正常水平[2]。
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