Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis

Abstract Fibromyalgia (FM) and ankylosing spondylitis (AS) are both rheumatic diseases characterized by significant musculoskeletal pain. In this study, we investigated the differences of the resting-state network (RSN) connectivity and gray matter volume (GMV) between FM, AS and healthy controls (H...

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Main Authors: Dong Liu, Yanli Zhang, Jiaoshi Zhao, Budian Liu, Churong Lin, Mingcan Yang, Jieruo Gu, Ou Jin
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-79246-w
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author Dong Liu
Yanli Zhang
Jiaoshi Zhao
Budian Liu
Churong Lin
Mingcan Yang
Jieruo Gu
Ou Jin
author_facet Dong Liu
Yanli Zhang
Jiaoshi Zhao
Budian Liu
Churong Lin
Mingcan Yang
Jieruo Gu
Ou Jin
author_sort Dong Liu
collection DOAJ
description Abstract Fibromyalgia (FM) and ankylosing spondylitis (AS) are both rheumatic diseases characterized by significant musculoskeletal pain. In this study, we investigated the differences of the resting-state network (RSN) connectivity and gray matter volume (GMV) between FM, AS and healthy controls (HCs). We recruited 38 FM patients, 82 AS patients and 61 HCs in this study. All the participants underwent resting-state functional MRI (rs-fMRI) scans in a GE 3.0T MR system. Independent component analysis (ICA) was conducted on the rs-fMRI data, and group differences of the rsFC between different resting-state networks were calculated using dual regression. We also conducted voxel-based morphometry (VBM) analysis to investigate the differences of the GMV in FM, AS and HCs. The rsFC between the dorsal default mode network (DDMN) and the body of left caudate nucleus was significantly decreased in FM patients in comparison to AS patients (87 voxels, p = 0.025). VBM analysis showed that the GMV of the left posterior lobe of cerebellum was significantly increased in FM patients compared with AS patients (88 voxels, p = 0.036). Neither ICA nor VBM analysis revealed significant differences of RSN connectivity or GMV between FM patients and HCs. The altered rsFC between DMN and the caudate nucleus suggested an aberrant cortico-striato-thalamo-cortical circuit in FM patients, indicating aberrant reward processing, with potential association with mood, motivation and cognitive functions. The increased GMV in the left posterior lobe of cerebellum indicated the participation of cerebellum in the abnormal pain processing in FM patients.
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spelling doaj-art-ebd40e7c4f474f2bb2fa9b17173aab872025-08-20T02:20:41ZengNature PortfolioScientific Reports2045-23222024-12-0114111210.1038/s41598-024-79246-wAlterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitisDong Liu0Yanli Zhang1Jiaoshi Zhao2Budian Liu3Churong Lin4Mingcan Yang5Jieruo Gu6Ou Jin7Department of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Radiology, the Third Affiliated Hospital of Sun Yat-Sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityDepartment of Rheumatology, the Third Affiliated Hospital of Sun Yat-sen UniversityAbstract Fibromyalgia (FM) and ankylosing spondylitis (AS) are both rheumatic diseases characterized by significant musculoskeletal pain. In this study, we investigated the differences of the resting-state network (RSN) connectivity and gray matter volume (GMV) between FM, AS and healthy controls (HCs). We recruited 38 FM patients, 82 AS patients and 61 HCs in this study. All the participants underwent resting-state functional MRI (rs-fMRI) scans in a GE 3.0T MR system. Independent component analysis (ICA) was conducted on the rs-fMRI data, and group differences of the rsFC between different resting-state networks were calculated using dual regression. We also conducted voxel-based morphometry (VBM) analysis to investigate the differences of the GMV in FM, AS and HCs. The rsFC between the dorsal default mode network (DDMN) and the body of left caudate nucleus was significantly decreased in FM patients in comparison to AS patients (87 voxels, p = 0.025). VBM analysis showed that the GMV of the left posterior lobe of cerebellum was significantly increased in FM patients compared with AS patients (88 voxels, p = 0.036). Neither ICA nor VBM analysis revealed significant differences of RSN connectivity or GMV between FM patients and HCs. The altered rsFC between DMN and the caudate nucleus suggested an aberrant cortico-striato-thalamo-cortical circuit in FM patients, indicating aberrant reward processing, with potential association with mood, motivation and cognitive functions. The increased GMV in the left posterior lobe of cerebellum indicated the participation of cerebellum in the abnormal pain processing in FM patients.https://doi.org/10.1038/s41598-024-79246-wFibromyalgiaAnkylosing spondylitisFunctional connectivityFunctional MRIIndependent component analysis
spellingShingle Dong Liu
Yanli Zhang
Jiaoshi Zhao
Budian Liu
Churong Lin
Mingcan Yang
Jieruo Gu
Ou Jin
Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
Scientific Reports
Fibromyalgia
Ankylosing spondylitis
Functional connectivity
Functional MRI
Independent component analysis
title Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
title_full Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
title_fullStr Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
title_full_unstemmed Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
title_short Alterations of the resting-state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
title_sort alterations of the resting state brain network connectivity and gray matter volume in patients with fibromyalgia in comparison to ankylosing spondylitis
topic Fibromyalgia
Ankylosing spondylitis
Functional connectivity
Functional MRI
Independent component analysis
url https://doi.org/10.1038/s41598-024-79246-w
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