情感网络中的大脑结构和功能异常与焦虑抑郁症有关
Qiao Juan1,2, Tao Shiwan3, Sun Yurong4,5
1Department of Psychology, The Affiliated Xuzhou Eastern Hospital of Xuzhou Medical University, Xuzhou, 221004, China.
BMC psychiatry
|July 25, 2024
概括
焦虑抑郁症 (AD) 涉及脑结构和前额叶和极的功能变化. 情感网络中的这些变化可能是这种情况的基础,结构问题可能会导致功能缺陷.
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:
- 焦虑性抑郁症 (AD) 是一种主要抑郁症 (MDD) 的常见亚型.
- 以前对AD的神经成像研究显示,由于单一模型方法,结果不一致.
- 需要多模型成像分析来进行强大的AD病原性研究.
研究的目的:
- 用多模型成像方法研究焦虑抑郁症 (AD) 的神经生物学基础.
- 与非焦虑性抑郁症 (NAD) 相比,识别与AD相关的结构性和功能性大脑变化.
- 探索AD临床症状和大脑网络中断之间的关系.
主要方法:
- 招募了182名MDD患者和64名健康对照 (HC).
- 在灰色物质体积 (GMV) 分析中采用基于伏塞尔的形态测量 (VBM).
- 在VBM识别的感兴趣区域 (ROI) 上利用静止状态功能连接 (rs-FC),并进行相关性分析.
主要成果:
- 与NAD相比,AD患者在中间额头 (MFG) 和上额头 (SFG) 中显示GMV降低.
- rs-FC分析显示,在AD中,左侧SFG与左侧极之间以及左侧SFG与右侧MFG之间的连接性下降.
- 左SFG-左极连接与AD患者的HAMD-17分数负相关.
结论:
- 结合的GMV和rs-FC数据表明,情感网络中的结构和功能障碍是AD病理生理学的关键.
- 额头部区域的结构性损伤可能在AD中观察到的功能缺陷之前和背后.
- 这种多模型方法为AD的神经生物学基础提供了更强大的理解.
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