【摘要】 目的比较生槐花、炒槐花、槐花炭及其提取物芦丁、槲皮素、鞣质的止血作用。方法实验动物分别灌饲受试药物5天后测定小鼠出血时间、凝血时间、血小板总数及毛细血管通透性,并对大鼠进行凝血酶原时间、纤维蛋白原含量及血小板聚集率的检测。结果生槐花、炒槐花、槐花炭及提取物芦丁、槲皮素、鞣质均可降低毛细血管通透性,减少小鼠出、凝血时间和大鼠血浆凝血酶原时间;3种饮片还可增加纤维蛋白原含量;3种提取物则明显降低大鼠血小板聚集率。另外,芦丁具有增加小鼠血小板总数的作用。结论3种饮片及3种提取物均具有止血作用,炒槐花和槐花炭作用强于生槐花,但6种实验样品的止血机制有所不同。更多还原

【Abstract】 To compare the hemostatic effect of Flos Sophorae in crude, parched and carbonized forms and its extracts, including rutin, quercetin and tannin. Methods All the testing samples were orally administered to the experimental animals for 5 days, then the bleeding time (BT), coagulation time (CT), platelet count and capillary permeability (CP) in the treated mice were tested, and the prothrombin time (PT), fibrinogen (FBG) content and platelet aggregation rate (PAR) in the treated rats were determined. ResultsAll the samples could lower the CP, BT and CT in mice and also decrease the plasma PT in rats. All three forms of Flos Sophorae could increase FBG in rats, while the three extracts of it could inhibit the PAR in rats obviously. In addition, rutin had the effect of raising the platelet count. ConclusionAll the three forms and three extracts of Flos Sophorae have hemostatic effect, the effect of parched and carbonized form is higher than that of crude drug. The mechanism of the hemostatic effect of the six kinds of sample might be various.更多还原