苓桂术甘汤配伍机制及药效物质基础研究

Study on the compatibility and therapeutical basis of composite herbal medicines of Lingguishugan Decoction

目的 :研究《伤寒论》名方苓桂术甘汤 (茯苓 ,桂枝 ,白术 ,甘草 )的配伍机制及药效物质基础 ,确定方中各药味的君臣佐使关系和质量控制指标。方法 :采用正交试验设计对方中组成药味进行药味与药量同时加减拆方 ,选择小鼠常压耐缺氧、对抗氯仿所致小鼠心律失常和利尿三项药理指标对所得 1 6个处方进行药理实验 :采用方差分析、逐步回归分析(SREG)与典型相关分析 (CCOR)将所得药理数据和组方药味及药量相关联 ,探讨复方苓桂术甘汤的配伍机制 ;同时对各处方进行HPLC色谱指纹图谱研究 ,将所得药理数据和各指纹峰的峰面积 (即各化合物的含量 )相关联 ,探讨复方苓桂术甘汤的药效物质基础 ,并确定其质量控制指标。结果 :确定了方中以茯苓为君 ,以桂枝为臣 ,佐以白术 ,使以甘草的配伍关系 ,与对该复方中药的传统诠释相一致 ;通过回归分析和相关分析从 50个色谱峰中选取 1 7个作为药效物质基础 ,其中桂皮酸、甘草酸和去氢土莫酸被确定为质量控制指标。结论

Objective: To study the compatibility and therapeutical basis of composite herbal medicines of Lingguishugan Decoction(LD)(Poria, Ramulus Cinnamomi, Rhizoma Atractylodis Macrocephalae, Radix Glycyrrhizae.)Methods: Ethanol extract test solutions of the different combinations were prepared according to the orthogonal layout L 16 (4 5). Pharmacologic experiments, such as the time of survival of mice in shortage of oxygen in normal pressure, the antagonistic effect on arrhythmia induced by chloroform and the diuretic effect were carried out with LD. Variance analysis, canonical correlation and stepwise regression analysis were applied to interelationship between the amount of each drug and the pharmacologic data. Then, the fingerprints of the solutions were tested by HPLC method and 50 chromatographic peaks were obtained. Correlation and regression analysis was applied to interelationship between the area of each peaks and the pharmacologic data.Results: The results confirmed the poria and cinnamon twig are the basis, while ovate atractylodes and licorice are the adjuvans. 17 peaks, which were established as the therapeutical basis of the decoction, were selected from all compounds, and cinnamic acid of cinnamomum cassia, glycyrrhizin of Glycyrrhiza uralensis and dehydrotumulosic acid of Poria cocos were selected as the markers to evaluate the quality of the decoction.Conclusion: This study provided a significant try of studying the compatibility of composite herbal medicines.