Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (18): 2677-2683.doi: 10.3969/j.issn.2095-4344.2016.18.014

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Effects of safflower yellow on angiotensin receptor II1 of kidney cells in diabetic nephropathy rats   

Gao Yan1, Yuan Lu-liang2, Zhang Hai-song1   

  1. 1Department of Nephrology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China; 2Health Team of the 66165 Troops of Chinese PLA, Baoding 071000, Hebei Province, China
  • Received:2016-02-07 Online:2016-04-29 Published:2016-04-29
  • Contact: Zhang Hai-song, Master, Chief physician, Department of Nephrology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • About author:Gao Yan, Master, Associate chief physician, Associate professor, Department of Nephrology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • Supported by:

    the Tracking Project of Medical Application Technology in Hebei Province, No. GL201311

Abstract:

BACKGROUND: Safflower yellow is known to treat diabetic nephropathy, can protect kidney function, reduce lesions, delay or prevent the development of diabetic nephropathy.

OBJECTIVE: To further verify the effects of safflower yellow on the kidney in rats with diabetic nephropathy and the impact of safflower yellow on the expression of renal cell receptor of angiotensin II1.
METHODS: Thirty rats were equally and randomly divided into three groups: normal control group, model group and experimental group. In the experimental group and model group, rat models of diabetic nephropathy were established. At 1 week after model establishment, rats were daily intraperitoneally given safflower yellow injection 27.8 mg/kg, once a day. In the model and control groups, rats were daily intraperitoneally given an equal volume of saline. All rats were administered for 23 weeks. The kidney-related biochemical indicators and pathological changes in kidney tissue and the expression of angiotensin II1 type receptor on kidney tissue of rats were observed.
RESULTS AND CONCLUSION: (1) Hypertrophy index of experimental group and model group was significantly higher than that of control group (P < 0.05). (2) 24-hour proteinuria, glycosylated hemoglobin, total cholesterol, triglycerides, creatinine and urea nitrogen of model group were higher than that of control group (P < 0.05). 24-hour proteinuria, glycated hemoglobin, total cholesterol and urea nitrogen in experimental group were higher than that of control group (P < 0.05). 24-hour proteinuria, total cholesterol, triglycerides, creatinine and urea nitrogen in the experimental group were lower than that of model group (P < 0.05). (3) Glomerular hypertrophy, thickening of capillary basement membrane, cell proliferation, and mesangial widening were detected in the model group. Abnormal changes in the kidney structure were found in the control group. The extent of damage of kidney of histopathology in the experimental group was between the control group and the model group. (4) The expression level of angiotensin receptor II1 of experimental group and model group was higher than that of control group (P < 0.05). The expression level of angiotensin receptor II1 of experimental group was lower than that of model group (P < 0.05). These results indicated that safflower yellow has a protective effect on diabetic nephropathy; the mechanism of action may be associated with blocking kidney partial renin-angiotensin system.
中国组织工程研究杂志出版内容重点:肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程

Key words: Diabetic Nephropathies, Renin-Angiotensin System, Carthamus Tinctorius, Tissue Engineering