›› 2007, Vol. 27 ›› Issue (1): 6-10.

• 论文 • 上一篇    下一篇

免股动脉粥样硬化症改良模型的建立及其评价

  

  1. 复旦大学 1.附属华山医院心内科,上海 200040;2.实验动物科学部,上海 200032;3.附属金山医院ICU,上海 200540
  • 出版日期:2007-01-31 发布日期:2007-01-31

Establishment and Evaluation on Modified Athesclerotic plaque Model in Rabbit

  1. Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China 2. Department of Laboratory Animal Science, Fudan University, Shanghai 200032, China3. Department of Intensive Care Unit, Jinshan Hospital, Fudan University, Shanghai 200540, China
  • Online:2007-01-31 Published:2007-01-31

摘要: 目的 建立新西兰兔股动脉粥样硬化改良模型,探讨其可行性并与传统造模方法进行比较。方法 西兰兔通过高脂饲料饲养后,在X线透视下经颈动脉行股动脉球囊损伤,建立改良动脉粥样硬化模型。与传统造模方法相比,评判造模前后的冠状动脉造影血流分级(Thrombolysis in Myocardial Infarction,TIMI)评分、管腔内径,血管内膜厚度和泡沫细胞阳性面积的变化,以及血凝血酶原时间(Prothrombin Time,PT)值的变化。结果 与对照组比较,改良模型组的股动脉管腔内径显著狭窄(P<0.001),其狭窄程度与动脉内膜增厚程度存在相关性(r=-0.753)。同时,血管内膜泡沫细胞阳性面积率显著增多(P=0.018)。该变化与传统造模组相比,更为显著。结论 改良法建立粥样斑块模型不但具有可行性,而且可控程度高、易重复。这种造模方法可以通过微创技术TIMI评分与血液生化学进行评价;与传统模型相比,更有助于进一步阐明不稳定斑块的机制。

关键词: 动脉粥样硬化, 新西兰兔, 动物模型, 球囊扩张

Abstract: Objective To establish the modified athesclerotic plaque model and evaluate it compared with traditional animal model. Methods New Zealand rabbits were fed with high cholesterol diet and feromal artery balloon injury were conducted to establish the improved atherosclerotic plaque model, PT and endothelium thickness, foam cell area were determined, and TIMI was monitored. Result Compared with the traditional group, modified plaque model group presents significant stenosis of the femoral artey,shortening of the PT and thickening of the endothelium. Conclusion The modified plaque model, which is accurately controlled and easily repeated, could be used to evaluate the progress of atherosclerosis and demonstrate the mechanism of the plaque.

Key words: Atherosclerosis, New Zealand rabbits, Animal model, Balloon injuiy