尖吻蝮蛇毒无出血活性纤溶酶对动物血栓的溶栓作用

目的　研究尖吻蝮蛇毒 (Agkistrodonacutus)无出血活性的纤溶酶对动物血栓形成的溶栓作用。方法　采用家兔动物血栓和大白鼠静脉血栓模型 ,静脉注射尖吻蝮蛇无出血活性纤溶酶 ,分 3个剂量组 (n =6) ,其剂量分别为 0 1 4、0 7、1 4mg·kg- 1 ,用生理盐水作阴性对照。测定尖吻蝮蛇毒无出血活性的纤溶酶对动脉血栓、静脉血栓的溶栓作用。结果　给药后 ,尖吻蝮蛇毒无出血活性的纤溶酶对动脉血栓、静脉血栓湿重均有减轻作用 ,与生理盐水对照组相比 ,差异均有显著性 (P <0 0 5或P <0 0 1 )。结论　尖吻蝮蛇无出血活性纤溶酶对动物血栓有明显的溶栓作用 ,具有潜在的临床应用价值

Thrombolytic effect of non-hemorrhagic fibrinolytic enzyme purified from Agkistrodon acutus on animal thrombosis

AIM To study the thrombolytic effect of non hemorrhagic fibrinolytic enzyme from Agkistrodon acutus venom on animal thrombosis. METHODS By means of pulmonary embolism,arterial thrombosis model in rabbits and venous thrombosis model in rats. The non hemorrhagic fibrinolytic enzyme from Agkistrodon acutus was given by intravenous injection at 0 14, 0 7, 1.4 mg·kg -1 three different doses respectively. Normal saline was used as negative control and thrombolytic effects was observed. RESULTS It was showed that moist weights of arterial thrombosis, venous thrombosis and pulmonary embolism were markedly lightened and has statistical significance compared with normal saline ( P <0 05). CONCLUSION Non hemorrhagic fibrinolytic enzyme from Agkistrodon acutus venom has obvious thrombolytic effect on experimental animals. It was effective modern antithrombotic pharmaceutics with potential clinical application values.