探索Pulvinar亚核中的连接性和体积变化:洞察强迫症 (OCD) 中的神经病理学作用
Behcet Ayyildiz1, Daniela Rodriguez-Manrique2,3, Sevilay Ayyildiz1,2,4
1Graduate School of Health Sciences, Anatomy PhD Program, https://ror.org/0411seq30Kocaeli University, Kocaeli, Turkey.
Psychological medicine
|July 20, 2025
概括
强迫症 (OCD) 与特定脉子核中的大脑连接和灰质体积的改变有关,特别是左前脉 (PuA). 这些发现表明pulvinar在强迫症病理生理学中的作用.
科学领域:
- 神经成像是一种神经成像.
- 精神病学是一个精神病学.
- 神经科学是一个神经科学.
背景情况:
- 之前的研究表明,在患有强迫症 (OCD) 个体中,肺部区域的脑部异常存在.
- 脉的复杂结构,有四个亚核 (PuA,PuI,PuL,PuM),导致正在进行的研究对其在强迫症中的特定变化.
- 了解脉动变化对于阐明强迫症的神经生物学基础至关重要.
研究的目的:
- 为了比较强迫症患者和健康对照者之间的肺部亚核 (PuA,PuI,PuL,PuM) 中的功能连接和灰质体积 (GMV).
- 通过检查结构和功能上的差异来研究肺部在强迫症中的潜在神经病理作用.
- 为了确定涉及该疾病的特定脉子区域.
主要方法:
- 在51名强迫症患者和41名健康人群中,利用3D T1加权MRI和休息状态功能性MRI (rs-fMRI).
- 分析了四个脉子核中的静止状态功能连接性和灰质体积 (GMV).
- 使用统计分析来比较强迫症和对照组之间的神经成像数据.
主要成果:
- 在左脉侧 (PuL),右脉前 (PuA) 和左脉前 (PuA) 组之间观察到显著的功能连接性差异 (p <0.05).
- 在对多次比较进行校正后,左侧PuA显示了强迫症组的连接性改变和GMV增加 (p = 0.002).
- 这些结果突出了受强迫症影响的脉内特定的亚核.
结论:
- 在强迫症患者中,左侧和右侧PuA以及左侧PuL中发现了功能连接性改变.
- 灰质体积变化特别在强迫症组的左侧PuA中被注意到.
- 这些发现表明,通过功能连接和GMV的改变,独特的脉动子区域通过改变的功能连接和GMV.有助于强迫症病理生理学.
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