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Resting-state abnormalities in functional connectivity of the default mode network in migraine: A meta-analysis

Su Hu, Zeqi Hao, Meng-Ting Li, Mengqi Zhao, Jianjie Wen, Yan-Yan Gao, Qing Wang, Hong-Yu Xi, C. O. Antwi, Xize Jia, Jun Ren

Frontiers in Neuroscience March 1, 2023 DOI: 10.3389/fnins.2023.1136790 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Meta-analysis Peer reviewed
Sample size 403
Population 204 migraine patients and 199 healthy subjects from nine resting-state fMRI studies published before July 2022
Topics Default mode network
Key findings Pooling nine resting-state fMRI studies, migraine patients showed increased default mode network connectivity in regions including the right calcarine gyrus, left inferior occipital gyrus, left postcentral gyrus, right cerebellum, right parahippocampal gyrus, and right posterior cingulate gyrus, and decreased connectivity in regions including the right postcentral gyrus, left superior frontal gyrus, right superior occipital gyrus, right orbital inferior frontal gyrus, left middle occipital gyrus, left middle frontal gyrus, and left inferior frontal gyrus. The authors propose these common connectivity abnormalities may serve as a biomarker and inform migraine pathophysiology and treatment.

Abstract

Migraine—a disabling neurological disorder, imposes a tremendous burden on societies. To reduce the economic and health toll of the disease, insight into its pathophysiological mechanism is key to improving treatment and prevention. Resting-state functional magnetic resonance imaging (rs-fMRI) studies suggest abnormal functional connectivity (FC) within the default mode network (DMN) in migraine patients. This implies that DMN connectivity change may represent a biomarker for migraine. However, the FC abnormalities appear inconsistent which hinders our understanding of the potential neuropathology. Therefore, we performed a meta-analysis of the FC within the DMN in migraine patients in the resting state to identify the common FC abnormalities. With efficient search and selection strategies, nine studies (published before July, 2022) were retrieved, containing 204 migraine patients and 199 healthy subjects. We meta-analyzed the data using the Anisotropic Effect Size version of Signed Differential Mapping (AES-SDM) method. Compared with healthy subjects, migraine patients showed increased connectivity in the right calcarine gyrus, left inferior occipital gyrus, left postcentral gyrus, right cerebellum, right parahippocampal gyrus, and right posterior cingulate gyrus, while decreased connectivity in the right postcentral gyrus, left superior frontal gyrus, right superior occipital gyrus, right orbital inferior frontal gyrus, left middle occipital gyrus, left middle frontal gyrus and left inferior frontal gyrus. These results provide a new perspective for the study of the pathophysiology of migraine and facilitate a more targeted treatment of migraine in the future.

Comparable studies

Other systematic reviews and meta-analyses on default mode network, most cited first.

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