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一项对大抑郁症和精神分裂症中半球间功能连接性的比较研究

Cheng Chen¹, Shisheng Hao¹, Xiaofen Li¹

¹Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, China.

Journal of affective disorders

|November 22, 2023

概括

重度抑郁症 (MDD) 和精神分裂症 (SZ) 显示出分别在中额头和条纹体中存在半球间功能连接 (FC) 异常的明显模式. 这些发现支持半球间断裂假设,并有助于差异诊断.

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.
放射学放射学是一门学科.

背景情况:

重度抑郁症 (MDD) 和精神分裂症 (SZ) 是不同的精神疾病,具有重叠的临床和生物特征.
之前的研究表明,在MDD和SZ中,半球间功能连接 (FC) 异常.
在MDD和SZ中描述特定的半球间FC模式对于理解它们的发病和分化至关重要.

研究的目的:

调查和比较MDD和SZ患者中半球间功能连接 (FC) 的模式.
确定MDD,SZ和健康对照之间的FC的相似性和差异.

主要方法:

招募了36名患有MDD,SZ和正常控制 (NC) 的患者.
利用静止状态功能性MRI (rs-fMRI) 来获取脑部成像数据.
通过使用voxel-mirrored homotopic connectivity (VMHC) 分析了半球间的功能连接,并通过ANOVA和post hoc测试比较了值.

主要成果:

在三组的条纹体和中额头 (MFG) 中发现了VMHC的显著差异.
与NC患者相比,MDD患者显示MFG VMHC减少.
与NC患者和MDD患者相比,SZ患者的纹状体VMHC增加.

结论:

这些发现支持在MDD和SZ的发病过程中的半球间功能断开假设.
在MFG (MDD) 和纹状体 (SZ) 中明显的半球间FC变化可能为差异诊断提供神经成像基础.

关键词:

半球间的功能连接.大型抑郁症主要是抑郁症.中额前回,中额前.精神分裂症的精神分裂症患者状体是一个状体.

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