这是肝磷脂的初期形态，一种重要的抗凝固剂，目前要获得该物质就不得不从血液中提取，而不是人工合成。
This is a precursor to heparin, an important anti-clotting agent that has, at present, to be extracted from blood, rather than being synthesised.
后者能通过特异性的蛋白质-蛋白质相互作用而作用于血液凝固系统及血小板，从而发挥抗凝或促凝的生理功能。
They can act on blood coagulation factors and platelets through specific protein-protein interactions and exhibit anti-coagulant or pro-coagulant activities.
若将其还原，血液就又具有抗冻性能，而且凝固点也有所降低。
When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
若将其还原，血液就又具有抗冻性能，而且凝固点也有所降低。
When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
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