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偏头痛的大脑网络间多通道层次功能整合分析:一项 fMRI 研究。

Multi-channel hierarchy functional integration analysis between large-scale brain networks for migraine: An fMRI study.

机构信息

College of Information Engineering, Shanghai Maritime University, Shanghai, China.

College of Information Engineering, Shanghai Maritime University, Shanghai, China.

出版信息

Neuroimage Clin. 2020;28:102462. doi: 10.1016/j.nicl.2020.102462. Epub 2020 Oct 8.

Abstract

Migraine is a chronic dysfunction characterized by recurrent pain, but its pathogenesis is still unclear. As a result, more and more methods have been focused on the study of migraine in recent years, including functional magnetic resonance imaging (fMRI), which is a mainstream technique for exploring the neural mechanisms of migraine. In this paper, we systematically investigated the fMRI functional connectivities (FCs) between large-scale brain networks in migraine patients from the perspective of multi-channel hierarchy, including static and dynamic FCs of group and individual levels, where the brain networks were obtained using group independent component analysis. Meanwhile, the corresponding topology properties of static and dynamic FCs networks in migraine patients were statistically compared with those in healthy controls. Furthermore, a graph metrics based method was used to detect the potential brain functional connectivity states in dynamic FCs at individual and group levels, and the corresponding topology properties and specificity of these brain functional connectivity states in migraine patients were explored compared with these in healthy controls. The results showed that the dynamic FCs and corresponding global topology properties among nine large-scale brain networks involved in this study have significant differences between migraine patients and healthy controls, while local topological properties and dynamic fluctuations were easily affected by window-widths. Moreover, the implicit dynamic functional connectivity patterns in migraine patients presented specificity and consistency under different window-widths, which suggested that the dynamic changes in FCs and topology structure between them played a key role in the brain functional activity of migraine. Therefore, it may be provided a new perspective for the clinical diagnosis of migraine.

摘要

偏头痛是一种以反复发作性疼痛为特征的慢性功能障碍,但发病机制仍不清楚。因此,近年来越来越多的方法集中在偏头痛的研究上,包括功能磁共振成像(fMRI),这是探索偏头痛神经机制的主流技术。在本文中,我们从多通道层次的角度,包括组和个体水平的静态和动态功能连接(FCs),系统地研究了偏头痛患者大脑网络之间的 fMRI 功能连接。其中,大脑网络是通过组独立成分分析获得的。同时,还对偏头痛患者和健康对照组之间静态和动态 FC 网络的相应拓扑性质进行了统计比较。此外,还使用基于图度量的方法来检测个体和组水平动态 FCs 中的潜在脑功能连接状态,并与健康对照组相比,探索偏头痛患者中这些脑功能连接状态的相应拓扑性质和特异性。结果表明,本研究涉及的九个大脑网络之间的动态 FCs 及其相应的全局拓扑性质在偏头痛患者和健康对照组之间存在显著差异,而局部拓扑性质和动态波动容易受到窗宽的影响。此外,在不同窗宽下,偏头痛患者中隐含的动态功能连接模式具有特异性和一致性,这表明 FCs 之间的动态变化及其拓扑结构在偏头痛的大脑功能活动中起着关键作用。因此,它可能为偏头痛的临床诊断提供了一个新的视角。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/328a/7575876/9d830e27305b/gr1.jpg

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