在抗N-甲基-D-酸盐受体脑炎中异常的大规模静止状态功能网络
Xiarong Gong1,2, Libo Wang3, Yuanyuan Guo4
1Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
Frontiers in neuroscience
|September 3, 2024
概括
患有抗N-甲基-D-酸盐受体 (抗NMDAR) 脑炎的患者表现出认知缺陷和广泛的脑网络连接障碍. 这项研究揭示了功能和有效连接的改变,为疾病提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 神经免疫学 神经免疫学
- 认知神经学 认知神经学
背景情况:
- 抗N-甲基-D-酸盐受体 (anti-NMDAR) 脑炎呈现出严重的神经症状.
- 休息状态功能性MRI (rs-fMRI) 表明受影响患者的广泛功能网络损伤.
- 了解抗NMDAR脑炎的信息流变化至关重要.
研究的目的:
- 调查静止状态网络 (RSN) 内部和之间的内在功能连接 (FC).
- 检查抗NMDAR脑炎中RSN之间有效连接 (EC) 的变化.
- 为了将神经成像发现与认知缺陷相关联.
主要方法:
- 从25名抗NMDAR脑炎患者和30名健康对照 (HC) 获得的rs-fMRI数据.
- 独立组件分析 (ICA) 用于分析内部和网络之间的FC.
- 格兰杰因果分析 (GCA) 用于评估网络间的EC.
主要成果:
- 患者在威斯康星州卡片排序测试 (WCST) 和蒙特利尔认知评估 (MoCA) 上表现不佳.
- 在默认模式网络 (DMN) 中异常的内部FC,在视觉 (VN) 和背部注意网络 (DAN) 中增加的内部FC.
- 在多个网络 (DMN,DAN,FPN,VN,SMN) 之间增加了VN和前端对联网络 (FPN) 之间的FC间,以及异常EC.
结论:
- 抗NMDAR脑炎与显著的记忆和执行功能缺陷有关.
- 在患者中观察到广泛的FC内,FC间和EC中的损伤.
- 这些发现有助于理解抗NMDAR脑炎的病理生理机制.
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