吉林大学学报(医学版) ›› 2021, Vol. 47 ›› Issue (2): 377-383.doi: 10.13481/j.1671-587X.20210217

• 基础研究 • 上一篇    下一篇

雷公藤多苷对慢性肾脏病大鼠血管内皮损伤的保护作用及其机制

徐保振1,武美娟2,胡秀红1,王涛1,高玉伟1()   

  1. 1.河北医科大学第一医院肾内一科,河北 石家庄 050001
    2.河北医科大学第二医院肾内科,河北 石家庄 050000
  • 收稿日期:2020-07-28 出版日期:2021-03-28 发布日期:2021-03-25
  • 通讯作者: 高玉伟 E-mail:zhenbaoxu678@163.com
  • 作者简介:徐保振(1986-),男,山东省临清市人,主治医师,医学硕士,主要从事肾脏病诊治及终末期肾病腹膜透析治疗方面的研究。
  • 基金资助:
    河北省卫健委医学科学研究项目(20190492)

Protective effect of multiglycoside of tripterygium wilfordii on vascular endothelial injury in rats with chronic kidney disease and its mechanism

Baozhen XU1,Meijuan WU2,Xiuhong HU1,Tao WANG1,Yuwei GAO1()   

  1. 1.Department of Nephrology,First Hospital,Hebei Medical University,Shijiazhuang 050001,China
    2.Department of Nephrology,Second Hospital,Hebei Medical University,Shijiazhuang 050000,China
  • Received:2020-07-28 Online:2021-03-28 Published:2021-03-25
  • Contact: Yuwei GAO E-mail:zhenbaoxu678@163.com

摘要: 目的

探讨雷公藤多苷(GTW)对慢性肾脏病(CKD)大鼠血管内皮损伤的保护作用,并阐明其作用机制。

方法

将60只大鼠随机分为对照组、模型组和低、中及高剂量GTW组,每组12只。采用腺嘌呤诱导CKD大鼠模型。低、中和高剂量GTW组大鼠分别灌胃给予3.0、6.0和9.0 mg·kg-1 GTW,对照组和模型组大鼠给予等体积生理盐水。给药4周后检测各组大鼠血清尿素氮(BUN)和血肌酐(Scr)水平。采用HE和Masson染色观察各组大鼠血清肾脏组织病理及纤维化改变。采用酶联免疫吸附试验(ELISA)法检测各组大鼠血清内皮素1(ET-1)、一氧化氮(NO)、血管紧张素Ⅱ(AngⅡ)、肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)和转化生长因子β1(TGF-β1)水平。

结果

与对照组比较,模型组大鼠血清中BUN、Scr、ET-1、AngⅡ、TNF-α、IL-6和TGF-β1水平明显升高(P<0.05),NO水平明显降低(P<0.05),肾组织纤维化程度明显升高(P<0.05);与模型组比较,低、中和高剂量GTW组大鼠血清中BUN、Scr、ET-1、AngⅡ、TNF-α、IL-6和TGF-β1水平明显降低(P<0.05),NO水平明显升高(P<0.05),肾组织纤维化程度明显降低(P<0.05)。HE染色,对照组大鼠肾组织中肾小球和肾小管结构完整,细胞排列整齐;模型组大鼠肾组织肾小球和肾小管出现水肿,球囊粘连,有炎症细胞浸润;低、中和高剂量GTW组大鼠肾组织均有不同程度水肿和炎症细胞浸润,损伤程度较模型组轻。

结论

GTW通过下调ET-1和AngⅡ水平、上调NO水平,降低血清炎性因子水平,对CKD大鼠血管内皮损伤起到改善作用。

关键词: 雷公藤多苷, 慢性肾脏病, 血管内皮损伤, 尿素氮, 血肌酐

Abstract: Objective

To investigate the protective effect of the multiglycosides of tripterygium wilfordii (GTW) on the vascular endothelial injury in the rats with chronic kidney disease(CKD), and to clarify its mechanism.

Methods

Sixty rats were randomly divided into control group, model group, low, medium and high doses of GTW groups, and there were 12 rats in each group. Adenine was used to induce the CKD rat models. The rats in low, medium and high doses of GTW groups were given 3.0, 6.0 and 9.0 mg·kg-1 GTW by gavage, while the rats in control group and model group were given the same volume of normal saline. The levels of blood urea nitrogen(BUN) and serum creatinine(Scr) of the rats in various groups were measured after 4 weeks of administration. HE and Masson staining were used to observe the pathological changes of the kidney tissue and the changes of fibrosis of the rats in various groups. The levels of endothelin-1 (ET-1), nitric oxide (NO), angiotensinⅡ(AngⅡ),tumor necrosis factor-α (TNF-α),interleukin (IL-6) and transforming growth factor β1(TGF-β1) in serum of the rats in various groups were measured by ELISA.

Results

Compared with control group, the levels of BUN, Scr, ET-1, AngⅡ, TNF-α, IL-6 and TGF-β1 in serum of the rats in model group were significantly increased (P<0.05), while the NO level was significantly decreased (P<0.05), and the degree of renal fibrosis was significantly increased (P<0.05). Compared with model group, the levels of BUN, Scr, ET-1, AngⅡ, TNF-α, IL-6 and TGF-β1 in serum of the rats in low, medium and high doses of GTW groups were significantly decreased (P<0.05), while the NO levels were significantly increased (P<0.05), and the degrees of renal fibrosis were significantly decreased (P<0.05). The results of HE staining showed that the glomeruli and tubules in the kidney tissue of the rats in control group were intact and the cells arranged orderly; in model group, edema, balloon adhesion and inflammatory cell infiltration occurred in glomeruli and tubules of the rats; the kidney tissue of the rats in low, medium and high doses of GTW groups showed different degrees of edema and inflammatory cell infiltration, and the damage degrees were less than that in model group.

Conclusion

GTW can improve vascular endothelial injury in the CKD rats by down-regulating the ET-1 and AngⅡ levels and up-regulating the NO levels;GTW was improvement effect on the vascular endothelial injury of the CKD rats.

Key words: multiglycoside of tripterygium wilfordii, chronic kidney disease, vascular endothelial injury, urea nitrogen, serum creatinine

中图分类号: 

  • R692.6