J4 ›› 2010, Vol. 36 ›› Issue (6): 1026-1029.

• 基础研究 • 上一篇    下一篇

多(二磷酸腺苷-核糖)水解酶抑制剂单宁酸对糖尿病大鼠肾脏病变的影响及其机制

曲萌1,2, 赵丽艳3, 李才1, 李相军1, 孙波1, 魏海峰1   

  1. (1.吉林大学药学院实验药理与毒理学教研室,吉林 长春 130021;2.北华大学医学检验学院分子生物学教研室,吉林 吉林 132001;3. 吉林大学第二医院检验科,吉林 长春 130041)
  • 收稿日期:2010-07-02 出版日期:2010-11-28 发布日期:2010-11-28
  • 通讯作者: 李 才 E-mail:(Tel: 0431-85619702,E-mail:lic@jlu.edu.cn)
  • 作者简介:曲 萌(1971-)|女|吉林省吉林市人|副教授|在读医学博士|主要从事糖尿病分子病理学研究。
  • 基金资助:

    国家自然科学基金资助课题(30570855)

Effect of poly(ADP-ribose) glycohydrolase inhibitor gallotannin on renal lesion in experimental diabetic rats and its mechanism

 QU Meng1,2, ZHAO Li-Yan3, LI Cai1, LI Xiang-Jun1, SUN Bei1, WEI Hai-Feng1   

  1. (1. Department of Experimental Pharmacology and Toxicology,School of Pharmacy,Jilin University,Changchun 130021,China;2.Department of Molecular Biology,School of Ecsomatics Medical Sciences,Beihua University,Jilin 132001,China;3.Department of Laboratory,Second Hospital,Jilin University,Changchun 130041,China)
  • Received:2010-07-02 Online:2010-11-28 Published:2010-11-28

摘要:

目的:研究多(二磷酸腺苷-核糖)水解酶(PARG)抑制剂单宁酸(GLTN)对糖尿病
大鼠肾脏病变的影响并探讨其可能的机制。方法:将实验动物随机分为正常对照组(NC组)、糖尿病组(DM组)、糖尿病3-氨基苯甲酰胺(3-AB)处理组(CDT组)、糖尿病GLTN低剂量(20  mg·kg-1·d-1)处理组(LDT组)和糖尿病GLTN高剂量(30  mg·kg-1·d-1)处理组(HDT组),12周后检查各组动物血糖、血肌酐、尿素氮、尿蛋白排泄率水平及肾脏病变情况,免疫组织化学法检测各组大鼠肾组织PARP阳性信号表达。结果:与DM组比较,LDT和HDT组血糖水平明显降低(P<0.01),血肌酐、尿素氮水平和尿蛋白排泄率也明显降低(P<0.01,P<0.05,P<0.01),LDT和HDT组糖尿病大鼠的肾脏病变程度减轻,肾组织PARP蛋白表达降低(P<0.05)。但LDT和HDT组之间上述肾功能参数比较差异无显著性(P>0.05)。结论:GLTN可降低糖尿病大鼠的血糖水平,抑制肾组织PARP表达,改善肾脏功能和形态异常。

关键词: 单宁酸;多(二磷酸腺苷-核糖)水解酶;多(二磷酸腺苷-核糖)多聚酶;糖尿病肾病

Abstract:

To investigate the effect of poly (ADP-ribose) glycohydrolase (PARG) inhibitor gallotannin on renal lesion in STZ-induced diabetic rats and its mechanism. Methods Wistar rats were randomly divided into five groups: normal control (NC) group,STZ-induced diabetic(DM)  group,diabetic rats treated with 3-aminobenzamide (CDT) group,diabetic rats treated with gallotannin 20 and 30  mg·kg-1·d-1( LDT and HDT) groups. The levels of blood glucose,serum creatinine,blood urea nitrogen,urinary protein excretion were detected after treatment for 12 weeks.The  renal morphology was observed and the expression of poly (ADP-ribose) polymerase (PARP) was tested by immunohistochemical method. Results Compared with DM group,the levels of blood glucose,serum creatinine,blood urea nitrogen  and urinary protein excretion were significantly decreased in both LDT and HDT groups(P<0.05 or P<0.01). The renal lesion and the signal of positive expressing PARP in renal tissues were markedly reduced in diabetic rats treated with GLTN.But there were no significant differences of the indexes mentioned above between LDT and HDT groups(P>0.05).Conclusion Gallotannin can lower the level of blood glucose,inhibit the  renal PARP expression,and ameliorate the renal functional and morphological abnormalities in diabetic rats.

Key words: gallotannin;poly (ADP-ribose) glycohydrolase;poly (ADP-ribose) polymerase;diabetic nephropathy

中图分类号: 

  • R587.1