Establishment of high-fat and high-glucose and low dose of Streptozocin induced rat models of diabetic nephropathy
YAO Lan1 ZHANG Yujie2,3 WANG Jian3 LIU Jing3 LI Linlin3 WANG Ye3 LAN Yi4 MAO Xinmin5
1.Staff Room of Chinese Medicinal Resources, College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi 830011, China;
2.Department of Pharmacy, the First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi 830011, China;
3.Staff Room of Pharmacology, College of Basic Medicine, Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi 830011, China;
4.The Second Department of Cadres, Affiliated Hospital of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi 830000, China;
5.College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi 830011, China
Abstract:Objective To establish the early diabetic nephropathy (DN) rat model induced by high-fat and high-glucose and low dose of Streptozocin (STZ), so as to simulate the pathologic and renal function changes of early DN. Methods Thirty SPF level of normal male SD rats were divided into normal group and model group by weight. Normal group was fed with normal diet, model group was fed with high-fat and high-glucose diet for 8 weeks continuously, then 35 mg/kg of STZ was injected intraperitoneally to establish diabetic rats model, after that, high-fat and high-glucose diet was fed for 4 weeks continuously. Renal pathological changes, biochemical and renal function indexes of two groups were observed. Results The body weight of rats in the model group was significantly lower than that of normal group (P < 0.01), while the random blood glucose level was higher than that of normal group (P < 0.01), which had reached to standard of diabetes mellitus. The level of serum insulin in the model group was lower than that of normal group, the values of relative kidney weight, 24 h microalbuminuria, α1-microglobulin, β2-macroglobulin were higher than those of normal group, the differences were highly statistically significant (P < 0.01). The pathological characteristics of model group presented the thickening of glomerular basement membrane, mesangial broadening, accumulation of glycogen and collagen fiber in both glomerulus and kidney tubules. Conclusion This molding method can imitate the basic characteristics of early DN.
姚蓝1 张雨洁2,3 王健3 刘菁3 李琳琳3 王烨3 兰怡4 毛新民5. 高脂高糖与低剂量链脲佐菌素诱导的糖尿病肾病大鼠模型的建立[J]. 中国医药导报, 2017, 14(17): 12-15.
YAO Lan1 ZHANG Yujie2,3 WANG Jian3 LIU Jing3 LI Linlin3 WANG Ye3 LAN Yi4 MAO Xinmin5. Establishment of high-fat and high-glucose and low dose of Streptozocin induced rat models of diabetic nephropathy. 中国医药导报, 2017, 14(17): 12-15.
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