中药四性的生物热动力学研究——黄连不同炮制品药性的微量热学比较

目的 从生物物理化学的角度，探讨黄连及其不同炮制品药性的客观真实性。方法 利用微量热法，测定了大肠杆菌在黄连不同炮制品总生物碱作用下的生长热谱曲线，得到了相应的生物热动力学参数，结合本草文献报道，综合分析不同炮制方法对黄连药性的影响。结果 黄连不同炮制品总生物碱均能不同程度地抑制大肠杆菌的生长，偏温性药姜制黄连、酒制黄连、吴萸黄连使大肠杆菌指数生长期的生长速率常数显著减小，生长代谢过程中热量释放显著增加。偏寒性药生黄连、醋制黄连、胆汁黄连也使生长速率常数减少，却使热量释放略增加，两者存在较稳定的差异。结论 微量热法可作为刻划中药药性的有效的新方法。

Biothermokinetic studies on four properties of traditional Chinese materia medica--Comparison of different preparation properties of Coptidis Rhizoma by microcalorimetry

Object To probe into the objectivity and authenticity of four properties (cold, heat, warm, and cool) of raw Coptidis Rhizoma (RCR) and their preparations from biophysics and biochemistry. Methods Microcalorimetry was used to obtain the metabolic growth power-time curve of bacteria affected by the total alkaloid in different preparations of RCR and biothermokinetic parameters. Combined with the records of ancient herbal literatures, the influence of properties by different preparations to RCR were synthetically evaluated. Results All the effective total alkaloid in different preparations of RCR can restrain the Escherichia coli growth and metabolism in different level. Drugs, such as Coptidis Rhizoma Stir-fried with ginger juice (CRGJ), Coptidis Rhizoma stir-fried with wine (CRW), and Coptidis Rhizoma stir-fried with Fructus Evodiae (CRFE), with a little Warm Property can decrease the multiplication rate constants of E. coli index and increase heat output in growth metablism remarkably, while the drugs, such as RCR, Coptidis Rhizoma stir-fried with vinegar (CRV), and Coptidis Rhizoma stir-fried with gallbladder juice (CRGBJ), with a little Cold Property can decrease the multiplication rate constants and increase heat output a little. There was a stable difference between them. Conclusion Microcalorimetry is a new and useful mean for the study of the properties of tradition Chinese medicine.