大脑网络功能连接的性别差异及其与主要抑郁障碍中的基因表达特征的关联:基于REST-meta-MDD项目的研究
Jiang Wang1, Chengfeng Chen2, Shiying Wang3
1Mental Health Center of Tianjin University, Tianjin Anding Hospital, Tianjin, 300210, China.
Brain imaging and behavior
|October 10, 2025
概括
大型抑郁症表现出性别特异的大脑连接差异. 这些变异与基因表达有关,这表明基于性别特异的神经机制的抑郁症个性化治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 精神病学是一个精神病学.
背景情况:
- 大型抑郁症 (MDD) 中的性别差异尚未得到充分理解.
- 休息状态功能连接 (rsFC) 和基因表达可能发挥作用.
研究的目的:
- 为了研究MDD患者的rsFC的性别相关变异.
- 探索这些连接性差异与基因表达特征之间的关联.
主要方法:
- 利用了971名MDD患者和897名健康对照者的数据 (REST-meta-MDD项目).
- 使用艾伦人类大脑图谱和部分最小平方回归来比较性别之间的rsFC和分析基因表达的关联.
- 执行了斯皮尔曼的相关性和功能丰富分析.
主要成果:
- 与女性相比,男性MDD患者显示出默认模式和前对象网络之间的连接性增加,前对象网络和视觉网络之间的连接性减少.
- 连接性差异与两性汉密尔顿抑郁评分表得分相关.
- 1777个基因与基于性别的连接差异有关,富含离子通道活性,突触可塑性和神经元发育.
结论:
- 在功能性大脑连接方面,MDD表现出与性别相关的显著差异,特别是在对自我参考思想,情绪调节和认知控制至关重要的网络中.
- 相关基因突出显示了离子通道和神经元过程在这些性别特异的神经机制中的作用.
- 研究结果表明,在MDD治疗中,有潜在的性别特异性治疗策略.
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