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糖尿病患者多伴有血管并发症，如大、中动脉的粥样硬化和微血管的病变，是预后不良及致死的原因之一，糖尿病的重要特征──高精血症在其中起了重要作用。国外学者认为高血糖除可引起代谢障碍外，还可导致血管内皮损伤，增加细胞死亡。在血管增生发展过程中起重要作用［１］。
Diabetic patients are often accompanied by vascular complications, such as atherosclerosis and microvascular lesions of the middle and large, is one of the causes of poor prognosis and death, an important feature of diabetes ─ ─ ─ ─ ─ essential hypertension plays a significant role. Foreign scholars believe that in addition to high blood sugar can cause metabolic disorders, but also lead to vascular endothelial damage and increase cell death. Play an important role in the process of angiogenesis [1].