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山东大学学报(医学版) ›› 2011, Vol. 49 ›› Issue (5): 1-5.

• 论文 •    下一篇

瑞舒伐他汀抗糖尿病性心肌病的实验研究

姜晓莉1,安丰双2,宋辉3,安贵鹏2,董哲2,刘晓曼2   

  1. 1. 宁夏医科大学临床学院, 银川 750004; 2. 山东大学齐鲁医院心内科, 济南 250012;
    3. 山东大学附属济南市中心医院保健科,济南 250013
  • 收稿日期:2010-09-15 出版日期:2011-05-10 发布日期:2011-05-10
  • 通讯作者: 安丰双(1961- ),男,教授,博士生导师,主要从事心肌病及动脉粥样硬化的研究。 E-mail: 163asf@163.com
  • 作者简介:姜晓莉(1982- ),女,硕士研究生,主要从事心肌病的研究。E-mail: lilyann@qq.com
  • 基金资助:

    山东省自然科学基金资助项目(2007ZRB02777)

Effects of resovastain on prevention of experimental diabetic cardiomyopathy in rats

JIANG Xiao-li1, AN Feng-shuang2, SONG Hui3, AN Gui-peng2, DONG Zhe2, LIU Xiao-man2   

  1. 1. College of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China;
    2. Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China;
    3. Department of Cadre Healthcare, Jinan Central Hospital of Shandong University, Jinan 250013, China
  • Received:2010-09-15 Online:2011-05-10 Published:2011-05-10

摘要:

目的 探讨瑞舒伐他汀对大鼠糖尿病性心肌病(DCM)的影响。方法    将雄性Wistar大鼠50只随机分为正常对照组(n=8)、DCM组(n=21)和DCM+瑞舒伐他汀组(n=21)。DCM组和DCM+瑞舒伐他汀组腹腔注射链脲佐菌素(STZ)建立DCM大鼠模型, DCM+瑞舒伐他汀组大鼠每天以瑞舒伐他汀20mg/kg灌胃,20周后评价各组的体质量、空腹血糖、空腹胰岛素、甘油三酯及胆固醇。采用彩色多普勒超声心动图仪观测左室舒张末期内径(LVIDd)、左室收缩末期内径(LVIDs)、短轴缩短率(FS)及射血分数(EF),二尖瓣及三尖瓣瓣膜返流情况、二尖瓣口E波最大速度、A 波最大速度、E/A 的比值、E波减速时间(EDT′)、等容舒张时间(IVRT′)及主动脉血流最大速度(APV)等改变。结果     ①注射STZ 1周后,与正常对照组相比,DCM组和DCM+瑞舒伐他汀组大鼠体质量均显著升高(P均< 0.05),空腹胰岛素、血清胆固醇及甘油三酯均明显升高(P<0.01,P<0.05);实验末,与正常对照组相比,DCM组和DCM+瑞舒伐他汀组大鼠体质量显著下降(P均<0.01),空腹胰岛素水平明显降低(P均<0.05),空腹血糖及甘油三酯水平显著升高(P均<0.01),DCM组胆固醇水平显著升高(P<0.01);②超声心动图显示,与正常对照组相比,DCM组和DCM+瑞舒伐他汀组大鼠实验末LVIDd值及LVIDs值明显增加(P均<0.01),二尖瓣和三尖瓣瓣膜返流发生率显著增加(P均<0.05),E/A比值及LVEF降低(P均<0.01);DCM+瑞舒伐他汀组大鼠LVIDd值及LVIDs值较DCM 组减小(P均<0.05),房室瓣瓣膜返流发生率减少(P均< 0.05),E/A比值及EF升高(P均<0.05)。结论    瑞舒伐他汀对DCM大鼠的心功能和心肌重构有一定改善作用。

关键词: 糖尿病性心肌病;模型,动物;瑞舒伐他汀;大鼠,Wistar

Abstract:

Objective    To investigate effects of resovastain on the cardiac function of diabetic cardiomyopathy(DCM) in rats. Methods    50 Wistar rats  8 week old were randomly divided into three groups: the normal control group(n=8), the DCM group(n=21) and the DCM plus resovastain group(n=21).  Four weeks later, the DCM animal model was established by intraperitoneal injection of streptozotocin (STZ), which reached the standard was used for the following procedure; the DCM plus resovastatin group was intragastrically administered with resovastatin (20mg/kg/d). After 20 weeks, the role of resovastain in the process of DCM was observed by echocardiography, including left ventricular internal diameter at end-systole (LVIDs), left ventricular internal diastolic diameter (LVIDd), ejection fraction(EF,shortening fraction(FS), valvular regurgitation, Max E wave speed, Max A wave speed, ratio of E/A, E deceleration time(EDT′), isovolumic relaxation time (IVRT′) and aortic peak velocity(APV), and also by the detection of biochemical indices, including  serum glucose, fasting insulin, triglyceride and cholesterol. Results     ①One week after STZ injection, compared with the normal control group, the DCM group and DCM plus resovastatin group had a rise in levels of fasting blood glucose, triglyceride and cholesterol (P<0.01). At the end, compared with the normal control group, the body weight in other two groups significantly declined(P<0.01)and the fasting insulin level also declined (P<0.05), while levels of fasting blood glucose and triglyceride increased (P<0.01). The level of cholesterol in the DCM group increased (P<0.01), while there was no remarkable difference compared with the DCM plus resovastatin group (P>0.05).②The DCM group and DCM plus resovastatin group had a significant increase in LVIDd and LVIDs (P<0.01), and incidence of valvular regurgitation (P<0.05). E/A ratio and EF declined (P<0.01). Compared with the DCM group, LVIDs and LVIDd were ameliorated in the DCM plus resovastatin group (P<0.05), while the incidence of valvular regurgitation decreased (P<0.05) and the E/A ratio and EF increased (P<0.05). Conclusion     Resovastatin can to a certain extent improve cardiac function and myocardial remodeling in DCM rats.

Key words: Diabetic cardiomyopathy; Models, animal; Rosuvastatin; Rats, Wistar

中图分类号: 

  • R542.2
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