一、阿司匹林的抗血栓作用阿司匹林具有二个与凝血过程有关的作用。第一,它抑制了血小板凝血素A_2的合成,从而减少血少板的聚集。第二,它抑制了前列环素(PGI_2)在血管壁中的,合成。前列环素本身能抑制血小板聚集并使平滑肌松弛。因此,阿司匹林理想的剂量应该是能抑 First, the anti-thrombotic effect of aspirin Aspirin has two effects associated with the coagulation process. First, it inhibits the synthesis of thrombospondin A_2, thereby reducing the aggregation of thrombocytopenia. Second, it inhibits the synthesis of prostacyclin (PGI_2) in the vascular wall. Prostacyclin itself inhibits platelet aggregation and relaxes smooth muscle. Therefore, the ideal dose of aspirin should be able to suppress it