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氯沙坦对糖尿病大鼠肾脏保护作用的探讨

氯沙坦对糖尿病大鼠肾脏保护作用的探讨

中华肾脏病杂志 2000年第3期第16卷 论著

作者:卢筱华 冯烈 许敏华

单位:510630 广州,暨南大学医学院第一附属医院内分泌科

关键词:糖尿病肾病;一氧化氮;内皮素;转化生长因子-β;氯沙坦

  摘 要:目的探讨血管紧张素Ⅱ受体拮抗剂氯沙坦对糖尿病大鼠肾小球病变的保护作用及其机制。方法观察氯沙坦对糖尿病鼠肾血流量、肾脏体积及尿蛋白排泄的影响,以及对血、肾组织局部一氧化氮(NO),内皮素(ET)、转化生长因子-β(TGP-β1)含量的影响。结果氯沙坦可降低尿白蛋白、β2,微球蛋白(β2-m)排泄率,肌酐清除率(Ccr)及阻遏早期肾小球肥大,且不同程度降低肾组织局部NO、ET含量,大剂量氯沙坦还能降低尿液中TGP-β1含量。结论氯沙坦对糖尿病肾脏有保护作用,此作用可能与氯沙坦降低肾组织局部NO、ET及TCF-β1水平有关。

Protective effects of Iosartan on diabetic glomerulopathy in sTZ-induced diabetic rats

lU Xiaohua,FENG Lie,XU Minhua(the First Affiliated Hospital of Medical College , Jinan University , Guangzhou 510630, China)

  Abstract:Objective To evaluate the protective effects of specific antagonists of angiotensin Ⅱ receptor losartan on the kidneys of diabetic rats and study their mechanisms. Methods Changes of urinary albumin, β2-m excretion, creatinine clearance(Ccr), NO, ET level of plasma,urine and renal tissue, serum and urinary TGF-β1 concentration and mean glomerular volume were measured. Results Losartan could correct elevated urinary albumin, β2-m excretion, Ccr and mean glomerular volume. Urinary and renal tissue NO, ET concentration decreased after diabetic rats received iosartan. Large doses of losartan also reduced urinary TGF-β1 level. Conclusion Losartan can protect the kidney of diabetic rats and the decrease of NO, ET, TGF-β1 concentration in renal tissue may be a mechanism for this action.

  Keywords:Diabetic glomerulopathy; Nitric oxide; Endothelin; Transforming growth factor-β; Losartan参考文献:

  [1]Remuzzi A, Perico N, Amuchastegui CS, et al. Short and long-term effect of angiotensin Ⅱ receptor blockade in rats with experimental diabetes. J Am Soc nephrol, 1993,4: 40-45.

  [2]Kohzuki M, Yasujima M, Kanazawa M, et al. Antihypertensive and renal protective effects of Losartan in streptozotocin diabetic rats. J hypertens, 1995, 13: 97-101.

  [3]Yotsumoto T, Naitoh T, Shikada K, et al. Effects of specific antagonists of angiotensin Ⅱ receptors and captopril on diabetic nephropathy in mice. Jpn J pharmacol, 1997, 75: 59-62.

  [4]于德民,吴锐,尹潍,等.实验性链脲佐菌素糖尿病动物模型的研究.中国糖尿病杂志,1995,3:105-109.

  [5]Tolins JP, Shultz PJ, Raij L, et al. Abnormal renal hemodynamic response to reduced renal perfusion pressure in diabetic rats: role of NO. Am J physiol, 1993, 265: F886-F889.

  [6]Trachtman H, Futterweit S, Sirghal P. Nitric oxide modulates the synthesis of extracellular matrix proteins in cultured rat mesangial cell. Biochem Biophys Res commun, 1995, 207: 120-124.

  [7]Leppaluoto J, Ruskoaho H. Endothelin peptides: biological activities cellular singalling and clinical significance. Ann Med, 1992, 24: 153-158.

  [8]Simonson MS, Dunn MJ. Endothelin peptides: a possible role in glomerular inflammation. Lab Invest, 1991,64: 1-5.

  [9]Sharma K, Ziyadeh FN. Perspectives in diabetes: hyperglycemia and diabetic kidney disease. The case for transforming growth factor as a key mediator. Diabetes, 1995, 44: 1139-1145.

  [10]Rappaport RM, F Murad. Agonist induced endothelin-dependent relaxation in rat thoracic aorta may be mediated through cGMP. Cire Res, 1983, 52: 352-357.

  [11]胡伟新,龚德华.血管紧张素Ⅱ在糖尿病肾病发病中的作用.肾脏病与透析肾移植杂志,1998,7:161-165.

收稿日期:1999-08-28


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