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随着经济的发展和人民生活水平的提高,糖尿病的患病率仍在逐年上升,血管并发症是导致患者残疾和死亡的主要原因,并给社会和经济的发展带来了沉重负担。内皮祖细胞(endothelial progenitor cells, EPCs)在各种因素刺激下,从骨髓动员到外周血,参与损伤内皮的修复,在血管新生中具有重要作用[1-3]。但是高血糖会导致EPCs数量减少及功能受损[4-5]。研究表明,雌激素降低是心血管疾病发病的危险因素。因此,本实验通过研究雌激素对糖尿病大鼠EPCs功能的改善作用并探讨可能的作用机制,为探讨糖尿病血管并发症提供理论依据。
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