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休息状态大脑活动变化及其在轻度创伤性脑损伤中的遗传相关性

Lu Wang¹, Yijing Zhang², He Wang²

¹Department of Geriatrics and Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, China.

Human brain mapping

|June 13, 2025

概括

轻度创伤性脑损伤 (mTBI) 与大脑活动和特定基因表达模式的改变有关. 这项研究确定了基因和生物学途径,可能是mTBI后持续认知和情绪症状的潜在原因.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
脑部成像脑部成像

背景情况:

轻度创伤性脑损伤 (mTBI) 可以导致持久的认知和情绪问题.
脑神经损伤症状的神经生物学原因尚未完全理解.
之前对mTBI休息状态大脑活动的研究显示了不一致的结果.

研究的目的:

为了调查mTBI患者的静止状态大脑活动变化.
探索这些大脑活动变化的遗传基础.
确定与mTBI相关的神经生物学变化相关的生物学途径.

主要方法:

对374名mTBI患者和302名健康对照者的静止状态fMRI数据的基于坐标的voxel-wise元分析.
使用艾伦人类大脑图谱基因表达数据进行转录-神经成像关联分析.
基因丰富分析以确定生物过程和细胞类型.

主要成果:

与对照人群相比,mTBI患者在左侧胰岛和右侧状回环中表现出增加的活动,双边中前额回环中活动下降.
840个基因与观察到的大脑活动变化有显著的相关性.
鉴定的基因在化学突触传输和多细胞生物发育等途径中得到了丰富,并且在特定的神经元类型 (Pnoc+, Ntsr+, Cort+) 中得到了丰富.

结论:

在mTBI中休息状态大脑活动的变化与特定的基因表达模式有关.
这些发现突出了潜在的神经生物学途径,包括突触传播和发育过程,涉及到mTBI.
这项研究提供了对轻度创伤性脑损伤后持续症状的遗传基础的见解.

关键词:

基因表达的基因表达方式轻微的创伤性脑损伤.神经成像的元分析.休息状态的大脑活动.转录与神经成像的关联.

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