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在重度抑郁症中,结构性和功能性大脑连接体中中断了主体间的可变性架构

Keke Fang^1,2,3, Baohong Wen⁴, Liang Liu⁴

¹Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China.

Psychological medicine

|February 20, 2025

概括

大型抑郁症 (MDD) 显示了大脑连接的多样化. 这项研究揭示了MDD患者结构和功能连接模式的差异,突出了解决这种异质性的必要性.

科学领域:

神经成像是一种神经成像.
大脑的连接性大脑的连接性
精神疾病精神疾病

背景情况:

重度抑郁症 (MDD) 是一种复杂的疾病,具有多种不同的临床表现.
神经成像研究表明,在MDD中,大脑连接性发生了广泛的改变.
在MDD中,这些连接性改变的个体间变异性尚未得到充分理解.

研究的目的:

在一大群MDD患者中调查结构共变性 (IVSC) 和功能连接性 (IVFC) 的个体间变异性.
探索连接性改变,灰质缩和MDD疾病进展之间的关系.
检查MDD中潜在的分子基础和连接模式的可重复性.

主要方法:

分析了包括1,276名MDD患者和1,104名健康对照在内的大型多站点数据集.
利用神经成像技术评估大脑区域内的IVSC和IVFC.
使用相关性,调解和受体结合分析来探索关系和特异性.

主要成果:

患有MDD的患者表现出IVSC的不同模式 (在前皮/舌环中较高,在中部前皮/小脑中较低) 和在大多数大脑区域的IVFC增加.
异常的IVSC与灰质缩相关,并调解了IVFC和缩之间的联系.
连接性改变显示疾病进展,可复制,特异于MDD,与神经递质受体分布相关.

结论:

这项研究阐明了MDD中异常大脑连接的显著异质性.
这些发现强调了在未来的MDD研究中考虑个体连接差异的重要性.
结果提供了潜在的分子机制和与连接相关的疾病进展的见解.

关键词:

连接ome 连接ome 连接ome 功能连接性的功能连接性异质性的异质性它们是神经递质神经递质.结构的协同差异.

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