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增强腺的缺血性预调的抗麻醉和抗心脏病发作作用
Y Toyoda1, V Di Gregorio, R A Parker
1Division of Cardiothoracic Surgery and Biometrics Center, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA.
Circulation
|November 18, 2000
概括
与标准的缺血预先调节 (IPC) 相比,增强腺素缺血预先调节 (APC) 显著减少了心脏病发作的大小,并改善了缺血后的心脏功能. APC提供了扩展的保护,在减少心脏病发作和功能恢复方面表现优于IPC.
科学领域:
- 心脏病学 心脏病学
- 心血管生理学心血管生理学
- 缺血性心脏病研究 缺血性心脏病研究
背景情况:
- 缺血预先调节 (IPC) 保护心脏免受缺血-再输血损伤.
- 氨酸增强性缺血预制 (APC) 旨在增强IPC的保护作用.
- 了解APC和IPC的比较疗效对于开发心脏保护策略至关重要.
研究的目的:
- 为了确定APC的抗心脏病和抗麻醉作用.
- 在大型动物模型中比较APC与IPC的保护作用.
- 评估APC与IPC提供的心脏保护的持续时间.
主要方法:
- 96只羊经历了不同持续时间的区域性缺血 (15-60分钟),然后再输血.
- 实验小组包括区域性缺血症 (RI),缺血预制 (IPC),腺素 (ADO) 和腺素增强缺血预制 (APC).
- 使用四醇染色测量了心脏梗塞的大小,通过声微米测量评估了心肌功能.
主要成果:
- 与RI,ADO和IPC (P<0.05) 相比,APC在所有缺血持续时间中显示出优异的心脏病发作大小减少.
- 与其他组相比,在30分钟的缺血后,APC心脏中,对心脏功能的测量,分段缩短明显高于APC心脏 (P<0.05).
- 虽然IPC和APC都显示出保护作用,但APC的好处,包括心脏病发作大小的减少和功能恢复,比IPC更持久.
结论:
- 在绵羊心脏中,APC提供了显著的抗心脏病和抗震惊作用.
- 与IPC相比,APC的心脏保护益处明显更持久.
- 与传统的IPC相比,APC代表了一种优越的策略,用于增强后缺血功能恢复和减少心脏病发作的大小.
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