AIM To study the interactions of component (group) compatibility of Sanwu Huangqin Decoction in incubation model of rat liver microsomes.METHODS With maackiain and ephedrine as internal standards,HPLC was adopted in the simultaneous content determination of total tlavonoids (baicalin,wogonoside,baicalein,wogonin and oroxylin A) from Scutellariae Radix and total alkaloids (oxymatrine,oxysophocarpine and matrine)from Sophorae flavescentis Radix in whole prescription component (group) compatibility and single medicinal material part (group) at seven time points (0,15,30,45,60,90 and 120 min),followed by the calculation of their in vitro metabolic rates.RESULTS In whole prescription component (group) compatibility,the contents of baicalin and wogonoside were first increased (0-0.5 h) and then decreased (0.5-2.0 h),those of baicalein,wogonin and oroxylin A showed increasing trends (more obvious within 0.5 h).The stable and gende metabolisms of various alkaloids reached balance within 20 min.CONCLUSION The bioavailability improvement and efficacy enhancement of total flavonoids from Scutellariae Radix may attribute to the compatibility with total alkaloids from Sophorae flavescentis Radix and total polysaccharides from Rehmanniae Radix in Sanwu Huangqin Decoction%目的 研究三物黄芩汤组分(群)配伍在大鼠肝微粒体孵育模型中的相互作用.方法 以高丽槐素和麻黄碱为内标,HPLC法分别同时测定7个时间点(0、15、30、45、60、90、120 min)全方组分(群)配伍及单味药材部位(群)中黄芩总黄酮(黄芩苷、汉黄芩苷、黄芩素、汉黄芩素、千层纸素A)和苦参总生物碱(氧化苦参碱、氧化槐果碱、苦参碱)的含有量,并计算其体外代谢率.结果 在全方组分(群)配伍中,黄芩苷、汉黄芩苷含有量先升高(0 ～0.5 h)后降低(0.5～2.0 h),黄芩素、汉黄芩素、千层纸素A含有量呈升高趋势(0.5h内更明显);各生物碱代谢稳定平缓,在20 min内达到平衡.结论 三物黄芩汤中黄芩总黄酮与苦参总生物碱、地黄总多糖配伍后,可改善其生物利用度,增强其药效.
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