皮层形态梯度揭示了双相情感障碍的分子和认知基础
Rui Wang1, Jiajun Xu2, Fei Li1
1Department of Radiology, Institution of Radiology and Medical Imaging, https://ror.org/007mrxy13West China Hospital of Sichuan University, China.
Psychological medicine
|December 18, 2025
概括
双极性障碍破坏了大脑的层次组织,影响皮质网络,并将结构变化与神经递质系统和基因表达联系起来. 这种MIND梯度可能作为双相情感障碍的生物标志物.
科学领域:
- 神经成像是一种神经成像.
- 系统神经科学 系统神经科学
- 计算精神病学是一种计算精神病学.
背景情况:
- 双极性障碍 (BD) 与广泛的结构性大脑变化有关.
- 皮层网络的层次组织及其在BD中的分子/认知联系尚未得到充分理解.
研究的目的:
- 为了研究皮质形态测量网络在双相情感障碍中的等级组织.
- 探索这些网络变化的分子和认知基础.
- 在各种数据集中验证发现.
主要方法:
- 应用了形态相反分歧 (MIND) 网络方法对49名BD患者和119名对照的结构性MRI数据.
- 使用扩散地图嵌入来导出主要的MIND梯度.
- 关联的梯度改变神经递质系统,认知领域和转录基因特征,具有跨数据集验证.
主要成果:
- 患有BD的患者在特定的皮层区域 (左面额中额头,侧) 呈现出显著的主梯度变化.
- 网络层面的变化包括腹部注意力/运动网络的减少和前侧双侧/视觉网络的增加.
- 渐变变化与乙胆和GABA系统以及执行/视觉注意力过程相关;转录组分析显示了与BD相关的基因的丰富.
结论:
- 被破坏的等级性皮质组织是双相情感障碍的关键特征.
- 宏观的形态变化与特定的神经递质系统和转录架构有关.
- MIND梯度显示出作为一个生物标志物的潜力,可以弥合BD的结构,分子和认知方面.
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