J4 ›› 2014, Vol. 13 ›› Issue (8): 7-10.

• 药学 • 上一篇    下一篇

美洲大蠊提取物对ISO致大鼠心肌缺血的保护作用

  

  1. 1.大理学院基础医学院,云南大理 671000;2.大理学院药学与化学学院,云南大理 671000)
  • 收稿日期:2014-04-04 出版日期:2014-08-15 发布日期:2014-08-15
  • 作者简介:陆丽,助理实验师,主要从事机能学教学研究.

Protective Effect of Periplaneta americana Extracts on Myocardial Ischemia Induced by
Isoproterenol in Rats

  1. 1.Pre-clinical College, Dali University, Dali, Yunnan 671000, China; 2. College of Pharmacy and Chemistry, Dali
    University, Dali, Yunnan 671000, China
  • Received:2014-04-04 Online:2014-08-15 Published:2014-08-15

摘要:

目的:研究美洲大蠊提取物(CⅡ-3)对ISO所致大鼠心肌缺血的保护作用。方法:采用皮下注射ISO诱发大鼠心肌缺
血。观察心肌缺血大鼠ECG的S-T 段、Q -T间期的变化,血清中LDH、SOD、CK和MDA含量及心肌病理损伤情况。结果:3个剂量组的CⅡ-3都能降低S-T段的偏移和缩短Q-T间期(P < 0.05),中、高剂量组能显著降低MDA的含量(P < 0. 01)和提高SOD的活性(P < 0. 05),高剂量组能降低CK的活性(P < 0.05),但3个剂量组对LDH活性影响较小(P > 0.05)。病理检测显示3个剂量组的CⅡ-3能不同程度的减轻大鼠心肌病理组织的损伤程度。结论:CⅡ-3对ISO诱导的大鼠心肌缺血具有一定的保护作用。

关键词: 美洲大蠊, 心肌缺血, 异丙肾上腺素

Abstract:

Objective: To study the protective effect of CⅡ-3 extracted from Periplaneta americana on myocardial ischemia in rats
induced by isoproterenol (ISO). Methods: The myocardial ischemia model was made by using subcutaneous injection of ISO in rats.The change of S-T segment and Q-T interval of electrocardiogram (ECG) was observed, and the content of LDH, CK, SOD and MDA in serum was measured. The pathological lesion of myocardium were observed. Results: Three types of dosage of CⅡ-3(low, 25 mg/kg;mid, 50 mg/kg; high, 100 mg/kg)all significantly reduced S-T segment deviation and shortened Q-T interval(P < 0. 05). Middle and high dosage of CⅡ-3 significantly reduced the content of MDA( P < 0. 01) and raised the activity of SOD (P < 0. 05). High dosage of CⅡ-3 reduced the activity of CK (P < 0. 05), but three dosage of CⅡ-3 had the subtle effect on the activity of LDH. Pathological examination showed that three dosages of CⅡ-3 could reduce the pathological lesion of myocardium in rats to varying degrees. Conclusion: CⅡ-3 had some protective effect on myocardial ischemia in rats induced by ISO.

Key words: Periplaneta americana, myocardial ischemia, isoproterenol

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