Journal of Capital Medical University ›› 2022, Vol. 43 ›› Issue (5): 674-679.doi: 10.3969/j.issn.1006-7795.2022.05.002

• Clinical and Basic Research in Nephrology • Previous Articles     Next Articles

Effect of shared peripheral circulation on renal injury in diabetic kidney disease mice

Huang Qi1, Zhou Yilun1*, Sun Xuefeng2*   

  1. 1. Department of Nephrology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China;
    2. Department of Nephrology, Chinese People's Liberation Army General Hospital, State Key Laboratory of Kidney Disease, Beijing 100853, China
  • Received:2022-05-09 Online:2022-10-21 Published:2022-10-25
  • Contact: * E-mail:zhouyilun2008@sina.cn, xfssun@126.com
  • Supported by:
    National Natural Science Foundation of China(81900662).

Abstract: Objective To investigate the effects of the shared peripheral circulation on diabetic kidney disease (DKD).Methods Parabiotic surgery was performed between the 8-week-old male C57BL/6J mice and the DKD male mice of the same strain, the DKD mice was induced by streptozocin (STZ) injection and divided into three groups based on the stage of DKD: 12 weeks after STZ injection, 20 weeks after STZ injection, and 28 weeks after STZ injection. The animals were sacrificial 8 weeks after parabiotic surgery,and the blood, urine and kidney tissue samples of mice in each group were collected. Results A total of 24 pairs of parabiosis mice were obtained, 8 pairs in DKD 12 weeks, 8 pairs in DKD 20 weeks and 8 pairs in DKD 28 weeks. DKD mice in the same stage without peripheral circulation were set as the positive control group, and wild mice of the same age as the negative control group.The levels of blood glucose, insulin, triglyceride and total cholesterol in DKD with shared peripheral circulation group were significantly lower than those in the positive control group throughout all stage of DKD. In the DKD 20 weeks, the level of albumin-to-creatinine ratio in the group receiving shared peripheral circulation was significantly lower than that in the positive control group, with superiority was more significant in the DKD 28 weeks. In addition, in the DKD 28 weeks, the degree of renal injury and the expression of fibrosis marker protein in the positive control group were significantly higher than those in DKD mice receiving shared peripheral circulation. Conclusion Shared peripheral circulation could reduce blood glucose level, enhance insulin sensitivity and regulate lipid metabolism in DKD mice, and then alleviate renal tissue damage, improve renal fibrosis and protect renal function.

Key words: diabetic kidney disease, peripheral circulation, parabiosis animal model

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