意大利青少年和年轻人的Covid-19相关的认知,结构和功能性大脑变化:多式纵向病例控制研究
Azzurra Invernizzi1, Stefano Renzetti2, Christoph van Thriel3
1Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
medRxiv : the preprint server for health sciences
|July 28, 2023
概括
在年轻人中,轻微的COVID-19感染可能会导致长期的大脑变化. 像杏仁体和海马体这样的大脑区域中的这些神经和认知变化在康复后的几个月内仍然存在.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 认知科学 认知科学
背景情况:
- 冠状病毒疾病2019 (COVID-19) 与持续的大脑变化有关,但研究往往忽略了轻度感染和年轻人群.
- 在COVID-19后的年轻人中神经学结果需要进一步调查,特别是在受到大流行影响的地区.
研究的目的:
- 研究COVID-19后轻度感染的年轻人的神经活动,结构变化和认知结果.
- 在一个年轻的成年人队伍中,确定与COVID-19后条件相关的特定大脑区域和功能性改变.
主要方法:
- 一项涉及轻度感染COVID-19病例 (n=13) 和健康对照 (n=27) 的病例控制研究,平均年龄为24岁.
- 在基线和随访期间利用休息状态功能性MRI (fMRI),结构MRI和CANTAB空间工作记忆测试.
- 采用图形理论自向量中心性 (EC) 和体积差异 (delta) 分析来比较COVID-19前后的大脑指标.
主要成果:
- 在五个大脑区域的COVID-19病例和对照人群之间观察到自身向量中心性三角形 (ECdelta) 的显著差异:右内皮质,右舌环,左海马,左桃体和左前额轨道皮质.
- 与对照人群相比,左海马体在COVID-19病例中体积三角形 (体积delta) 显著下降 (p=0.041).
- 右桃体中减少的ECdelta调解了COVID-19状态和空间工作记忆受损之间的关系.
结论:
- 在年轻人中,轻微的COVID-19感染与持续的结构,功能和认知大脑变化有关.
- 关键的大脑区域涉及嗅觉和认知,包括海马和桃体,受到显著影响.
- 研究结果强调,需要评估COVID-19后这些大脑和认知变化的长期影响和潜在可逆性.
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