灰质和功能连接异常的多式核磁共振成像研究,在青少年患有双相情感障碍
Pengyu Zhu1, Yuxi Wang1, Jialin Xiang1
1Department of Radiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China.
Frontiers in psychiatry
|November 3, 2025
概括
青少年双相情感障碍 (BD) 在默认模式和突出网络中显示出大脑活动的改变. 结果显示连接性减少和小脑灰质缩,这表明早期诊断的神经生物学机制.
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.
- 神经成像是一种神经成像.
背景情况:
- 青少年双极性障碍 (BD) 是一种严重的疾病,影响情绪,社会和认知功能.
- 了解青少年BD的神经基础对于早期诊断和治疗至关重要.
- 这项研究调查了患有BD的青少年的神经生物学差异.
研究的目的:
- 通过多式神经成像来研究青少年双相情感障碍的神经机制.
- 为了识别自发神经活动,功能连接和灰质体积的变化.
- 为了将神经成像发现与临床症状严重程度相关联.
主要方法:
- 多模式神经成像 (fMRI,sMRI) 在69名患有BD的青少年和42名健康对照 (HC) 中.
- 分析低频波动 (ALFF),区域同质性 (ReHo),静止状态功能连接性 (rsFC) 和灰质体积 (GMV) 的振幅.
- 采用了基于种子的rsFC和基于声素的形态学 (VBM).
主要成果:
- 患有BD的青少年在默认模式 (DMN) 和突出网络 (SN) 中显示出改变的ALFF,在SN中显示出改变的ReHo.
- 在右上边缘回环和左中前线回环 (前端对面网络节点) 之间观察到减少的rsFC.
- 在左小脑中发现GMV减少;没有发现显著的成像-症状相关性.
结论:
- 青少年BD与DMN和前端对象网络 (FPN) 的功能异常有关.
- 大脑小脑灰质缩在患有BD的青少年中存在.
- 这些大脑区域的结构功能合被破坏可能是青少年BD神经生物学的基础.
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