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标准肝素肝素在化学和生物学上是非匀一性物质,它是不同长度分子链的混合,标准肝素分子量5000～30 000。肝素的主要抗凝作用源于其与抗凝血酶Ⅲ形成复合物,从而加速抗凝血酶Ⅲ的抗凝作用。有资料显示,未与抗凝血酶Ⅲ联结的链对抗血栓形成也是必
Standard Heparin Heparin is a non-uniform chemical and biological substance. It is a mixture of molecular chains of different lengths. The standard heparin has a molecular weight of 5000-30,000. The main anticoagulant effect of heparin stems from the formation of a complex with antithrombin III, thereby accelerating antithrombotic effect of antithrombin III. Data show that not linked to antithrombin Ⅲ chain anti-thrombosis is also necessary