休息状态功能磁共振成像和基酶-2甲基化相互作用在严重抑郁症中
Zhi Xu1, Tingting Tan2, Yan Jiang1
1Department of Psychosomatics and Psychiatry, Zhongda Hospital, School of Medicine, Jiangsu Provincial Key Laboratory of Brain Science and Medicine, Southeast University, Nanjing 210009, China.
Brain research bulletin
|July 17, 2025
概括
重度抑郁症 (MDD) 涉及到异常的大脑活动,特别是在叶和圈. 与大脑功能相互作用的TPH2基因甲基化可能有助于诊断MDD.
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.
- 遗传学 遗传学 是一个
背景情况:
- 重度抑郁症 (MDD) 与大脑各个区域的功能异常有关.
- 之前的研究表明,托芬氧化酶-2 (TPH2) 的DNA甲基化与MDD有关.
- 这项研究研究了MDD中大脑区域活动和TPH2基因甲基化之间的相互作用.
研究的目的:
- 在MDD患者中识别大脑区域的功能活动变化.
- 探索TPH2基因甲基化和MDD中功能性大脑活动之间的关系.
- 为了确定大脑活动和TPH2甲基化之间的相互作用是否可以帮助诊断MDD.
主要方法:
- 利用了98名MDD患者和63名对照者的静止状态功能磁共振成像 (rs-fMRI) 数据.
- 分析了低频波动的幅度 (ALFF),区域同质性 (ReHo) 和分数ALFF (fALFF) 以确定感兴趣的区域 (ROI).
- 使用通用线性回归 (GLM) 来评估功能连接 (FC) 和 TPH2 DNA 甲基化之间的关联.
主要成果:
- 在MDD患者和健康对照者 (HCs) 之间发现了ALFF (右上旋 - STG) 和ReHo (右中旋 - MTG,左中旋 - MOG) 的显著差异.
- 在MDD和HC之间观察到FC差异,这些差异涉及右STG,右上额头 (SFG),右MTG和右MOG.
- 右STG ALFF和TPH2-5-203甲基化 (p=0.004) 和右MTG ReHo和TPH2-5-203甲基化 (p=0.018) 之间的相互作用与MDD发生相关.
结论:
- 在MDD中,叶,中回形和上额回形的功能活动异常.
- 右STG/MTG和TPH2甲基化的功能活动之间的相互作用与MDD相关.
- 结合功能性大脑活动和DNA甲基化可以改善MDD诊断.
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