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Abstract

Immunology and Infection

口腔插管和通气肺缺血再灌注手术小鼠模型

Published: September 9th, 2022

DOI:

10.3791/64383

1Department of Anesthesia and Perioperative Care, University of California San Francisco and San Francisco General Hospital, 2Department of Physiology, School of Medicine, Tehran University of Medical Sciences, 3Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine
* These authors contributed equally

缺血再灌注 (IR) 损伤通常由涉及短暂的血流中断的过程引起。在肺中,孤立的IR允许通过持续的肺泡通气对这一特定过程进行实验研究,从而避免缺氧和肺不张的复合有害过程。在临床环境中,肺缺血再灌注损伤(也称为肺IRI或LIRI)由许多过程引起,包括但不限于肺栓塞,复苏性出血性创伤和肺移植。目前,LIRI的有效治疗选择有限。在这里,我们提出了肺IR的可逆手术模型,包括首先耳廓气插管,然后是单侧左肺缺血和再灌注,保留肺泡通气或气体交换。小鼠接受左开胸术,通过该切开术,左肺动脉暴露,可视化,隔离和使用可逆滑结压缩。然后在缺血期间关闭手术切口,唤醒动物并拔管。随着小鼠自主呼吸,通过释放肺动脉周围的滑结来建立再灌注。这种临床相关的生存模型允许评估肺IR损伤,消退阶段,对肺功能的下游影响,以及涉及实验性肺炎的两次命中模型。虽然技术上具有挑战性,但这种模式可以在几周到几个月内掌握,最终生存率或成功率为80%-90%。

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