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Changes in Resting-State Neural Activity and Nerve Fibres in Ischaemic Stroke Patients with Hemiplegia

Brain topography, 2023-03, Vol.36 (2), p.255-268 [Peer Reviewed Journal]

The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. ;2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. ;ISSN: 0896-0267 ;EISSN: 1573-6792 ;DOI: 10.1007/s10548-022-00937-6 ;PMID: 36604349

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Title:
Changes in Resting-State Neural Activity and Nerve Fibres in Ischaemic Stroke Patients with Hemiplegia
Author: Cao, Xuejin ; Wang, Zan ; Chen, Xiaohui ; Liu, Yanli ; Abdoulaye, Idriss Ali ; Ju, Shenghong ; Zhang, Shiyao ; Wu, Shanshan ; Wang, Yuancheng ; Guo, Yijing
Subjects: Biomedical and Life Sciences ; Biomedicine ; Brain - diagnostic imaging ; Brain injury ; Brain Ischemia - diagnostic imaging ; Brain Mapping ; Correlation analysis ; Diffusion Tensor Imaging - methods ; Fibers ; Functional magnetic resonance imaging ; Hemiplegia ; Hemiplegia - diagnostic imaging ; Humans ; Ischemia ; Ischemic Stroke ; Magnetic Resonance Imaging - methods ; Nerve Fibers ; Neural networks ; Neuroimaging ; Neurology ; Neurosciences ; Original Paper ; Paralysis ; Parietal lobe ; Psychiatry ; Stroke ; Stroke - diagnostic imaging ; Substantia alba
Is Part Of: Brain topography, 2023-03, Vol.36 (2), p.255-268
Description: Many neuroimaging studies have reported that stroke induces abnormal brain activity. However, little is known about resting-state networks (RSNs) and the corresponding white matter changes in stroke patients with hemiplegia. Here, we utilized functional magnetic resonance imaging (fMRI) to measure neural activity and related fibre tracts in 14 ischaemic stroke patients with hemiplegia and 12 healthy controls. Fractional amplitude of low-frequency fluctuations (fALFF) calculation and correlation analyses were used to assess the relationship between regional neural activity and movement scores. Tractography was performed using diffusion tensor imaging (DTI) data to analyse the fibres passing through the regions of interest. Compared with controls, stroke patients showed abnormal functional connectivity (FC) between some brain regions in the RSNs. The fALFF was increased in the contralesional parietal lobe, with the regional fALFF being correlated with behavioural scores in stroke patients. Additionally, the passage of fibres across regions with reduced FC in the RSNs was increased in stroke patients. This study suggests that structural remodelling of functionally relevant white matter tracts is probably an adaptive response that compensates for injury to the brain.
Publisher: New York: Springer US
Language: English
Identifier: ISSN: 0896-0267
EISSN: 1573-6792
DOI: 10.1007/s10548-022-00937-6
PMID: 36604349
Source: ProQuest One Psychology
MEDLINE
ProQuest Central

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Changes in Resting-State Neural Activity and Nerve Fibres in Ischaemic Stroke Patients with Hemiplegia

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