在有或没有当前自杀念头的重大情绪障碍的年轻人中基于三重网络模型的功能失联
Wei-Sheng Huang1,2,3, Ju-Wei Hsu1,2,4, Li-Kai Cheng1,5,4
1Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan.
The Journal of clinical psychiatry
|November 19, 2025
概括
患有主要情绪障碍的年轻人中自杀倾向与显著的功能性脑网络中断有关. 这些发现突出显示了默认模式网络 (DMN),突出网络 (SN) 和前端对联网络 (FPN) 中的连接性变化.
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.
- 医疗成像医学成像
背景情况:
- 年轻人主要的情感障碍与显著的发病率和死亡率有关.
- 功能性大脑网络失联与精神疾病有关,但其在自杀念头中的作用尚不清楚.
- 默认模式网络 (DMN),突出网络 (SN) 和前端对象网络 (FPN) 对于认知和情绪调节至关重要.
研究的目的:
- 调查DMN,SN和FPN的功能性失联性与严重情绪障碍的年轻人当前自杀念头 (CSI) 之间的关联.
- 为了比较大脑连接模式的年轻人与重大情感障碍和没有CSI,和健康的对照.
主要方法:
- 休息状态功能连接磁共振成像 (rs-fMRI) 对158名患有严重情感障碍的年轻人 (101名患有CSI,57名没有CSI) 和64名健康对照进行.
- 进行了基于种子的连接分析,检查了DMN,SN和FPN内部和之间的功能连接.
- 诊断是基于DSM-5标准,CSI是使用蒙哥马利-阿斯伯格抑郁症评分表来定义的.
主要成果:
- 脑脊髓损伤组显示前侧胰岛 (SN) 和海马之间,以及后壁皮质 (FPN) 和直肠 (DMN) 之间的超连接性.
- 在CSI组中,桃体 (SN) 和小脑Crus II之间观察到低连接性.
- 与对照组相比,CSI和非CSI组都表现出后额叶皮层和参与情绪感知的部区域之间的功能连接性增加.
结论:
- 患有主要情绪障碍的年轻人中自杀倾向与SN,FPN和DMN的广泛和显著的功能失联有关.
- 这些发现表明,改变的网络相互作用有助于这一群体中自杀念头的病理生理学.
- 针对这些网络中断可能为减少自杀倾向提供新的治疗策略.
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