带有德克萨米他排泄电涂层的内管在上呼吸道受伤后改善了组织机械功能
Gabriela Gonzales1, Ronit Malka2, Lisa Marinelli3
1Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX, 78249, USA.
Scientific reports
|February 2, 2024
概括
皮质类固醇排泄的内管 (ETT) 可减少受伤后的气道硬. 含甲的ETT通过控制组织硬性来预防痕,为输管相关损伤提供了潜在的治疗方法.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 内管道输管可以导致喉管道损伤和纤维性痕,导致呼吸道阻塞.
- 目前用于输管诱导损伤的治疗方法有限,需要新的呼吸道管理和组织修复方法.
研究的目的:
- 开发和评估皮质类固醇排泄内管 (ETT) 以预防猪喉损伤模型中的纤维性痕.
- 评估甲载荷ETT在维持呼吸道通透性和控制受伤后组织硬性的有效性.
主要方法:
- 带有或没有德克萨米他的聚烯酸 (PCL) 纤维被电在ETT表面上.
- 在3,7天和14天的时间内,ETTs植入了原生和被磨损的猪喉气道.
- 喉肌组织硬度通过痕测量,然后进行组织学评估.
主要成果:
- 在本地呼吸道中,只有PCL的ETT增加了硬度,而甲PCLETT随着时间的推移降低了硬度.
- 在受伤的呼吸道中,德甲-PCLETT与14天的常规ETT相比,显著减少局部硬.
- 在受伤的猪中,观察到底层膜中的原减少趋势与德克萨米他装载ETT.
结论:
- 含甲的ETT有效地减少了模拟输管损伤后的喉肌组织硬化.
- 通过ETT的局部皮质类固醇输送显示了预防和治疗输管引起的痕的潜力.
- 这种方法为管理与机械通风相关的呼吸道并发症提供了一个有希望的策略.
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