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在患有青少年抑郁症的患者子组中,结构和功能连接合的重新配置

Ming Xu^1,2, Xuemei Li³, Teng Teng³

¹Brainnetome Center and National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China.

JAMA network open

|March 12, 2024

概括

青少年主要抑郁障碍 (MDD) 显示结构和功能连接 (SC-FC) 合增加,特别是在视觉和默认模式网络中. 这突显了青少年抑郁症中大脑相互作用的改变,受压力因素和自我伤害行为的影响.

科学领域:

神经科学是一个神经科学.
临床神经科学临床神经科学
精神病学是一个精神病学.

背景情况:

青少年主要抑郁症 (MDD) 对大脑发育,自我伤害和自杀有严重的影响.
以前的研究经常单独分析大脑成像模式,忽视了结构和功能之间的相互作用.
结构和功能连接 (SC-FC) 之间的异常相互作用可能是MDD精神病理的基础.

研究的目的:

在患有MDD的青少年中调查SC-FC合的变化.
整合扩散MRI和静止状态fMRI数据来检查SC-FC合.
探索SC-FC合和青少年MDD的临床特征之间的关系.

主要方法:

招募了168名患有首发MDD的青少年和101名年龄在10-18岁之间的健康对照.
使用扩散和静止状态fMRI数据计算全脑SC-FC合.
根据环境压力因素和临床特征进行了对群体差异的初级分析和对MDD子组的二次分析.

主要成果:

青少年MDD在视觉网络,默认模式网络和insula中显示出增加的SC-FC合 (FDR校正的P<.05).
亚组分析显示,自杀企图的参与者具有降低的副海马合 (FDR校正P = .007).
在发生重大生命事件的参与者中观察到额头边缘合的增加 (FDR校正P < .05).

结论:

增加的SC-FC合是青少年MDD的一个关键特征,涉及关键的大脑网络.
这些发现强调了SC-FC合改变在MDD精神病理学中的作用.
额头 - 边缘和副海马合对外部压力因素很脆弱,可能会影响行为.

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