麻黄汤中臣、佐、使药对君药中麻黄碱的人体内过程的影响

目的以君药效应成分麻黄碱为指标,采用GC-MS法考察不同配伍对麻黄碱药动学参数的影响规律,探索麻黄汤方中臣、佐、使药对君药在人体内过程的影响。方法对麻黄汤作正交设计拆成8个配伍组,每组8名健康男性志愿者,服药后在不同时间点抽取静脉血,测定血浆中麻黄碱,绘制药-时曲线;选用WinNonlin4.0.1软件求算药动学参数;采用SPSS10.0软件对药动学参数进行统计分析。结果药时曲线均符合无滞后开放式1房室动力学模型;不同配伍对麻黄碱的部分药动学参数有显著影响(P<0.05);方中各药味对麻黄碱的部分药动学参数的影响有显著交互作用(P<0.05)。结论臣、佐、使药对方中君药的有效成分麻黄碱的药动学参数有一定影响。

Pharmacokinetic study of minister, adjuvant, and guide herbs in Mahuang Decoction to ephedrine in monarch herb in vivo

Objective To develop a GC-MS method for the determination of ephedrine in human plasma and study the pharmacokinetic parameters of the ephedrine in different compatibility of the minister, adjuvant, and guide herbs to the monarch herb in Mahuang Decoction. Methods Orthogonal design was used to determine eight compatible groups from Mahuang Decoction (MHD). The healthy male volunteers were divided into groups in random, each group concluding eight men. After taking the medicine orally, venous blood would be taken out at different times. Determining ephedrine in plasma and plotting the concentration-time curve, the pharmacokinetic parameters of each compatible group were calculated by WinNonlin 4.0.1. The statistical analysis of the pharmacokinetic parameters were proceeded by SPSS 10.0. Results All concentration-time curves were adequately modeled by one compartment, first order absorption model, and no lag time. Some parameters of ephedrine showed significant variance (P<0.05) in different compatible groups. The statistic results showed interactions among herbs in MHD (P<0.05). Conclusion The minister, adjuvant, and guide herbs of MHD have some certain effect on the pharmacokinetic parameters of ephedrine in the monarch herb.