系统性炎症与COVID-19患者的长期认知功能障碍相关的神经轴损伤有关
H B Duindam1, D Mengel2, M Kox1
1Radboud University Medical Center, Department of Intensive Care Medicine, Nijmegen, the Netherlands.
Brain, behavior, and immunity
|February 9, 2024
概括
严重的COVID-19幸存者可能会因为系统性炎症和神经轴损伤而经历长期的认知障碍. 在ICU住院期间血液神经丝光链 (NfL) 水平可以预测这种认知衰退.
科学领域:
- 神经学 神经学
- 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:
- 认知缺陷是严重的COVID-19的公认的长期后果.
- 将严重的COVID-19与神经系统后果,特别是认知障碍联系在一起的机制尚未完全理解.
- 严重的COVID-19后系统性炎症对大脑影响的作用需要进一步调查.
研究的目的:
- 在严重的COVID-19幸存者中调查系统性炎症,神经轴损伤和长期认知障碍之间的关系.
- 在ICU入院期间分析系统性炎症和神经轴损伤生物标志物的轨迹.
- 为了确定在重症监护室 (ICU) 停留期间血液生物标志物水平是否可以预测出院后的认知结果.
主要方法:
- 一项前性的纵向队列研究,涉及幸存严重COVID-19和ICU入院的患者.
- 在ICU停留期间连续取血样,以测量使用Luminex和Simoa的炎症性细胞因子和神经丝光链 (NfL).
- 综合性神经心理评估在ICU出院六个月后进行,以评估认知功能.
主要成果:
- 在95%的患者 (从23到250 pg/mL) 的ICU停留期间,NfL的血度显著增加.
- 14日的系统性炎症标志物预测了14日的NfL水平 (R2=44%),表明炎症和神经轴损伤之间存在联系.
- 27%的患者在ICU出院6个月后表现出认知障碍,较高的NfL水平与较差的认知结果相关,特别是在处理速度方面.
结论:
- 在重症COVID-19患者中持续的全身炎症与神经轴损伤和随后的长期认知障碍有关.
- 在ICU住院期间测量的血NfL水平可能作为预后生物标志物,用于预测严重COVID-19幸存者的长期认知障碍.
- 了解炎症-大脑轴对于在严重的COVID-19后管理神经系统后果至关重要.
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