天王补心丸中桔梗对丹参改善大鼠脑微循环的促进作用

Effects of Salviae miltiorrhizae and Platycodon grandiflorum in Tianwang Buxin decoction for microcirculation of brain meninx vascullosa in rats

目的:研究天王补心丸中桔梗对丹参改善大鼠脑微循环的促进作用。方法:大鼠给药14 d后开颅窗,利用高分子葡聚糖造成实验性微循环障碍模型,观察记录给药后各组大鼠不同时间点软脑膜微动静脉直径、血液流速,血流量,全血黏度,红细胞聚集指数的变化。结果:天王补心丸全方组、天王补心丸缺桔梗组、丹参+桔梗组及丹参组均能改善大鼠脑微循环,其中天王补心丸组作用最强,改善大鼠脑微循环作用强弱依次是天王补心丸组>丹参+桔梗组>天王补心丸缺桔梗组>丹参组>桔梗组>对照组。而含有丹参的用药组中全血黏度和红细胞聚集指数均较低,而桔梗组和对照组相对较高。结论:桔梗可有效地协助丹参等活血药改善脑部微循环,在天王补心丸全方中桔梗配伍丹参对改善脑微循环有重要的意义。

Objective： To investigat the effects of Salviae miltiorrhizae and Platycodon grandiflorum in Tianwang Buxin decoction for microcirculation of brain meninx vascuUosa in rats. Method： The rats were equally and randomly divided into six groups. Control, Tianwang Buxin decoction, P. grand/florum-absenced Tianwang Buxin decoction, Radix S. miltiorrhizae, Radix S. miltiorrhizae and P. grandiflorum, P. grandiflorum. The effect on brain meninx vascullosa in rats were observed through an inverted microscope, doppler perfusion imager and blood reheology measurement meter. Result： The effect of Tianwang Buxin decoction was best among the six groups in dilatation of the diameter of arterial and venule, and velocity of blood flow. The effect of Radix Salviae miltiorrhizae was postponed and decreased when P. grandiflorum was removed of from this prescription. However, it was minimal advance of blood apparentviscosity for Tianwang Buxin decoction. Conclusion ： It is indeed that P. grandiflorum leads S. miltiorrhizae to main and collateralI channel, goes up like the boat and oar and aims to reinforce affection for the other drugs of Tianwang Buxin decoction to mprove the microcirculation of brain meninx vascullosa of rats.