一个基于voxel的形态测量调查大脑结构变化在晚年抑郁症与失眠
Heng Shao1, Na Li1, Meiling Chen2,3
1Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China.
Frontiers in psychiatry
|June 5, 2023
概括
失眠的晚年抑郁症 (LLD) 与没有失眠的LLD相比,显示出明显的大脑结构差异,特别是在小脑中. 这些发现表明,焦虑可能与LLD和失眠有关,提供了潜在的干预目标.
科学领域:
- 神经成像是一种神经成像.
- 老年精神病学是一门精神病学专业.
- 神经科学是一个神经科学.
背景情况:
- 晚年抑郁症 (LLD) 与衰老和医疗状况有关,睡眠障碍可能表明风险.
- 神经成像研究在LLD中探索神经机制,重点关注大脑网络.
- 这项研究使用MRI调查LLD与失眠的脑结构差异.
研究的目的:
- 为了确定LLD与失眠的歧视性大脑结构概况.
- 在LLD中探索大脑结构和临床特征之间的关系.
- 提高对LLD神经基础及其与失眠相关性的理解.
主要方法:
- 从24个失眠的LLD,26个LLD和26个健康的对照 (HC) 组的结构MRI数据的基于voxel的形态测量 (VBM) 分析.
- 临床评估包括HAMD-17,HAMA,MMSE和PSQI. 这些都是临床评估.
- 相关性分析检查了灰色物质体积 (GMV) 和临床变量之间的关系.
主要成果:
- 年龄或MMSE得分在不同组之间没有显著差异;性别分布不同 (p=0.029).
- 失眠组的LLD比LLD组的HAMA (p=0.041) 和PSQI (p<0.05) 分数更高.
- 在这三个组中,在小脑前部 (MNI:x=52,y=-40,z=-30) 中发现了显著的GMV差异,特别是在LLD和HC之间 (p<0.05).
- 大脑小细胞GMV与LLD患者的HAMA得分正相关 (r=0.47,p<0.05).
结论:
- 在LLD中,小脑转基因病毒存在显著差异.
- LLD和失眠之间的关联可能是由焦虑介导的.
- 研究结果提供了对患有失眠的LLD歧视性大脑概况的见解,表明了潜在的干预目标.
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