2,3=DPG(2,3=二磷酸甘油酸)是糖酵解旁路的代谢物,是红细胞中含量最高的低分子有机化合物。它能与血红蛋白分子以1:1结合,维持血红蛋白的 T 构象(放氧状态),降低血红蛋白与氧的亲和力,促使血液流经组织时放氧。目前国内外广泛使用的 ACD 保存液,可使库存血中2,3=DPG 含量迅速降低。此种库存血输入病人体内,不能立即改善组 2,3 = DPG (2,3 = diphosphoglycerate) is a metabolite of glycolytic by-pass, is the highest content of low molecular weight organic compounds in red blood cells. It can be combined with hemoglobin 1: 1, to maintain the T conformation of hemoglobin (oxygen release state), reduce the affinity of hemoglobin and oxygen, to promote blood flow through the tissue oxygen. Currently widely used ACD preservation solution at home and abroad, the inventory of blood 2,3 = DPG content decreased rapidly. This stock of blood into the patient’s body, can not immediately improve the group