在严重的COVID-19后患者中,内皮功能障碍和持续性炎症:对气体交换的影响
Enrique Alfaro1,2, Elena Díaz-García1,2, Sara García-Tovar1
1Respiratory Diseases Group, Respiratory Service, La Paz University Hospital, IdiPAZ, Paseo de La Castellana 261, 28046, Madrid, Spain.
BMC medicine
|June 12, 2024
概括
严重的COVID-19幸存者由于持续的炎症和内皮功能障碍而经历了持续的呼吸系统问题. 生物标志物分析显示,持续的免疫激活影响了重症监护室出院6个月后的肺功能.
科学领域:
- 肺部病理学 肺部病理学
- 免疫学 免疫学 免疫学
- 关键护理医学 关键护理医学
背景情况:
- 严重的COVID-19可能导致长期的呼吸道并发症.
- 了解COVID后的情况对于管理严重急性呼吸窘迫综合征 (ARDS) 幸存者至关重要.
研究的目的:
- 为了评估后COVID条件对严重ARDS幸存者的呼吸系统后果的影响.
- 确定与严重COVID-19后持续性呼吸功能障碍相关的生物标志物.
主要方法:
- 评估了88名COVID-19相关的严重ARDS幸存者在ICU退院六个月后.
- 测量了临床,功能和血生物标志物 (内皮功能障碍,炎症,病毒反应).
- 使用人静脉内皮细胞 (HUVEC) 的体外模型来评估血效应.
主要成果:
- 气体交换障碍与内皮炎症生物标志物 (ICAM-1,IL-8,CCL-2,ET-1) 的升高相关.
- 系统性炎症 (NLRP3,IL-6,sCD40-L,CRP) 和T细胞激活 (CD69,IFN-β) 与内皮功能障碍有关.
- 实验室模型证实COVID后的血改变了内皮功能.
结论:
- COVID-19 ARDS幸存者显示持续的内皮功能障碍生物标志物六个月后ICU.
- 由NLRP3炎症酶活性和T细胞激活引起的持续炎症有助于持续的内皮功能障碍.
- 持续的病毒免疫反应可能会加剧后COVID患者的内皮功能障碍.
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