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与炎症相关的异常动态大脑活动与第一个情节的认知障碍相关,未经药物治疗的大型抑郁症

Yifan Jing¹, Yuan Liu¹, Yuwen Zhou¹

¹Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin 300222, China.

Journal of affective disorders

|August 28, 2024

概括

由IL-6表示的炎症与大脑活动变化 (dALFF) 和严重抑郁症 (MDD) 的注意力缺陷有关. 这些发现是针对有自杀念头的MDD患者的具体发现.

科学领域:

神经科学是一个神经科学.
精神病学是一个精神病学.
免疫学免疫学免疫学

背景情况:

认知障碍是主要抑郁症 (MDD) 的常见症状.
炎症越来越被认为是MDD中大脑功能障碍的潜在贡献者.
在MDD中,关联炎症,动态大脑活动和认知缺陷的精确机制需要进一步阐明.

研究的目的:

为了研究血中介质素-6 (IL-6) 水平,动态大脑活动和第一阶段,未经药物治疗的大型抑郁症 (MDD) 患者的认知功能之间的关系.
探索低频波动的动态振幅 (dALFF) 和动态功能连接 (dFC) 是如何受到MDD炎症的影响.
为了确定与炎症相关的脑活动变化是否与特定的认知障碍有关,特别是注意力缺陷.

主要方法:

功能磁共振成像 (fMRI) 用于评估低频波动的动态幅度 (dALFF) 和动态功能连接 (dFC) 在57名MDD患者和60名健康对照中.
血IL-6水平使用酶相关免疫吸收试验 (ELISA) 来测量.
认知功能,包括注意力,使用神经心理状态评估重复电池 (RBANS) 进行评估.

主要成果:

患有MDD的患者在几个大脑区域显示dALFF减少,包括下回 (ITG) 和中回 (MOG).
IL-6水平与右ITG,左ITG,右下额头,部部分 (IFGoperc) 和右MOG中的dalff有显著的相关性.
在ITG中与IL-6相关的异常dALFF与注意力障碍有关,这种关联仅在MDD患者中观察到自杀念头. IL-6还与特定大脑区域的dFC相关.

结论:

根据IL-6水平的指示,炎症与MDD患者的动态大脑活动 (dALFF) 发生变化有关.
这些与炎症相关的脑活动变化与MDD的注意力缺陷有关,特别是在那些有自杀想法的人中.
这项研究强调了炎症,动态大脑功能和MDD的认知障碍之间的复杂相互作用,表明了患者子组之间的潜在差异.

关键词:

认知障碍认知障碍是一种认知障碍.动态大脑活动动态大脑活动炎症炎症是一种炎症.MDD MDD MDD 这是什么意思?

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