糖尿病鼠急性下肢缺血的血流变化

目的 研究建立糖尿病足下肢急性缺血模型的方法.方法 30只雄性Wistar鼠腹腔注射STZ(50 mg/kg)诱发糖尿病模型,血糖达16.8 mmol/L后,再手术结扎股动、静脉及周围血管,造成左下肢急性缺血模型,用激光多普勒(LDPI)测定下肢血流.结果 81.5%大鼠(22只)空腹血糖水平达16.8 mmol/L,结扎后1-14 d下肢显著性缺血(P

Change in blood flow of rats with diabetes mellitus after the acute hind limb ischemia

Objective To establish the acute hind limb ischemia on Wistar rat with diabetes mellitus.MethodsThirty diabetes rats were induced by intraperitoneal STZ (50 mg/kg) injection, as well as the blood glucose level tested over 16.8 mmol/L. The rats were ligated on the left femoral artery, then the blood perfusion on the hind limbs ischemia was measured by LDPI after the operation. Results The fasting plasma glucose level on 22 Wistar rats(81.5%) was kept above 16.8 mmol/L, and the hind limb blood perfusion would recover slowly to the level of the right side from 1 to 14 day (P<0.05). There was no distinctly significance on both sides until the 21st day.Conclusion Acute hind limb ischemia on the diabetic Wistar rat can be established during 3 weeks, which provided the possibility to investigate the healing mechanism of the diabetic food ulcer.