在COVID后的状态下,大脑微观结构的改变与认知障碍,嗅觉功能障碍和疲劳有关
Jonas A Hosp1, Marco Reisert2,3, Andrea Dressing4,5
1Department of Neurology and Clinical Neuroscience, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany. jonas.hosp@uniklinik-freiburg.de.
Nature communications
|May 18, 2024
概括
后COVID状态涉及影响认知和疲劳的大脑变化. 磁共振成像揭示了与初始COVID-19严重程度相关的大脑结构的改变,影响了神经症状.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 传染性疾病 传染性疾病
背景情况:
- 后COVID状态 (PCC) 呈现出持续的神经症状,如认知缺陷,嗅觉功能障碍和疲劳.
- 对PCC生物标志物和潜在的病理生理学的有限理解阻碍了有效的治疗.
- 病毒感染后的神经后果是一个日益严重的公共卫生问题.
研究的目的:
- 通过使用磁共振成像 (MRI) 来研究COVID后病症患者的大脑微观结构的改变.
- 为了比较PCC患者,健康对照者和没有长期症状的COVID-19幸存者之间的大脑结构.
- 为了将观察到的微观结构变化与特定的神经症状和初始感染严重程度相关联.
主要方法:
- 对大脑微观结构进行比较磁共振成像 (MRI) 分析.
- 包括三个组:COVID后病情患者,健康对照组和没有PCC的COVID-19幸存者.
- 相关性分析将神经成像发现与认知,嗅觉和疲劳的临床评估联系起来.
主要成果:
- 在患有后COVID状态的人群中观察到大脑微观结构的广泛变化.
- 这些变化涉及从神经元区到细胞外液体的体积转移,与最初的感染严重程度相关.
- 确定了明显受影响的大脑网络,显示了与认知,嗅觉和疲劳症状的解剖功能关系.
结论:
- 大脑的微观结构变化是后COVID状态的一个关键特征,可能与最初的感染严重程度有关.
- 核磁共振可以揭示与PCC神经症状相关的客观大脑变化.
- 对这些神经成像生物标志物的进一步研究可能有助于理解和管理COVID后的状况.
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