多成分药物序贯代谢方法用于川芎水煎液多成分不同阶段吸收代谢研究

中药作为多成分药物,其代谢与吸收相关性问题,可以通过序贯代谢方法开展,并为生物药剂学分类系统中决定吸收的肠渗透性成分选择提供遴选依据。该研究以川芎为研究载体,采用在体封闭肠环的实验方法,并且结合液质联用技术对川芎水煎液中的多成分口服给药吸收和序贯代谢过程进行了研究。结果在川芎水煎液中鉴别了14个主要成分,其中阿魏酸,洋川芎内酯F,G,I,J,3-羟基丁基苯肽6个成分以原型吸收入血,可作为中药生物药剂学分类系统中首选肠渗透性评价成分。正丁基苯酞,E-藁本内酯,Z-藁本内酯,新蛇床内酯,洋川芎内酯A,Q,在所有样品中均不存在,说明这6个成分不吸收或者在进入肝门静脉血前已经被代谢;洋川芎内酯H会被肝代谢;洋川芎内酯M会被肠道菌和肝代谢。通过这一研究,川芎水煎液多成分口服给药吸收代谢变化得以清晰展示出来,从而将静态的吸收入血成分转变为动态地、连续地、整体地多成分吸收代谢过程。

Absorption and metabolism of Chuanxiong Rhizoma decoction with multi-component sequential metabolism method

The multiple components in Chinese herbal medicines (CHM_S) will experience complex absorption and metabolism before entering the blood system. Previous studies often lay emphasis on the components in blood. However, the dynamic and sequential absorption and metabolism process following multi-component oral administration has not been studied. In this study, the in situ closed-loop method combined with LC-MS techniques were employed to study the sequential process of Chuanxiong Rhizoma decoction (RCD). A total of 14 major components were identified in RCD. Among them, ferulic acid, senkyunolide J, senkyunolide I, senkyunolide F, senkyunolide G, and butylidenephthalide were detected in all of the samples, indicating that the six components could be absorbed into blood in prototype. Butylphthalide, E-ligustilide, Z-ligustilide, cnidilide, senkyunolide A and senkyunolide Q were not detected in all the samples, suggesting that the six components may not be absorbed or metabolized before entering the hepatic portal vein. Senkyunolide H could be metabolized by the liver, while senkyunolide M could be metabolized by both liver and intestinal flora. This study clearly demonstrated the changes in the absorption and metabolism process following multi-component oral administration of RCD, so as to convert the static multi-component absorption process into a comprehensive dynamic and continuous absorption and metabolism process.