Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke

BackgroundStroke is a common cause of acquired disability on a global scale. Patients with motor dysfunction after a stroke have a reduced quality of life and suffer from an economic burden. Scalp acupuncture has been proven to be an effective treatment for motor recovery after a stroke. However, th...

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Main Authors: Dan Lin, Jinyang Gao, Mengxin Lu, Xiao Han, Zhongjian Tan, Yihuai Zou, Fangyuan Cui
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1083066/full
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author Dan Lin
Jinyang Gao
Mengxin Lu
Xiao Han
Zhongjian Tan
Yihuai Zou
Fangyuan Cui
author_facet Dan Lin
Jinyang Gao
Mengxin Lu
Xiao Han
Zhongjian Tan
Yihuai Zou
Fangyuan Cui
author_sort Dan Lin
collection DOAJ
description BackgroundStroke is a common cause of acquired disability on a global scale. Patients with motor dysfunction after a stroke have a reduced quality of life and suffer from an economic burden. Scalp acupuncture has been proven to be an effective treatment for motor recovery after a stroke. However, the neural mechanism of scalp acupuncture for motor function recovery remains to be researched. This study aimed to investigate functional connectivity (FC) changes in region of interest (ROI) and other brain regions to interpret the neural mechanism of scalp acupuncture.MethodsTwenty-one patients were included and randomly divided into patient control (PCs) and scalp acupuncture (SAs) groups with left hemiplegia due to ischemic stroke, and we also selected 20 matched healthy controls (HCs). The PCs were treated with conventional Western medicine, while the SAs were treated with scalp acupuncture (acupuncture at the right anterior oblique line of vertex temporal). All subjects received whole-brain resting-state functional magnetic resonance imaging (rs-fMRI) scan before treatment, and the patients received a second scan after 14 days of treatment. We use the National Institutes of Health Stroke Scale (NIHSS) scores and the analyses of resting-state functional connectivity (RSFC) as the observational indicators.ResultsThe contralateral and ipsilateral cortex of hemiplegic patients with cerebral infarction were associated with an abnormal increase and decrease in basal internode function. An abnormal increase in functional connectivity mainly exists in the ipsilateral hemisphere between the cortex and basal ganglia and reduces the abnormal functional connectivity in the cortex and contralateral basal ganglia. Increased RSFC was observed in the bilateral BA6 area and bilateral basal ganglia and the connectivity between bilateral basal ganglia nuclei improved. However, the RSFC of the conventional treatment group only improved in the unilateral basal ganglia and contralateral BA6 area. The RSFC in the left middle frontal gyrus, superior temporal gyrus, precuneus, and other healthy brain regions were enhanced in SAs after treatment.ConclusionThe changes in functional connectivity between the cerebral cortex and basal ganglia in patients with cerebral infarction showed a weakening of the bilateral hemispheres and the enhancement of the connections between the hemispheres. Scalp acupuncture has the function of bidirectional regulation, which makes the unbalanced abnormal brain function state restore balance.
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spelling doaj.art-0d122b33ffa04efe8dffce70a721212f2023-05-25T04:35:57ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-05-011410.3389/fneur.2023.10830661083066Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after strokeDan Lin0Jinyang Gao1Mengxin Lu2Xiao Han3Zhongjian Tan4Yihuai Zou5Fangyuan Cui6Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Radiology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaDepartment of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, ChinaBackgroundStroke is a common cause of acquired disability on a global scale. Patients with motor dysfunction after a stroke have a reduced quality of life and suffer from an economic burden. Scalp acupuncture has been proven to be an effective treatment for motor recovery after a stroke. However, the neural mechanism of scalp acupuncture for motor function recovery remains to be researched. This study aimed to investigate functional connectivity (FC) changes in region of interest (ROI) and other brain regions to interpret the neural mechanism of scalp acupuncture.MethodsTwenty-one patients were included and randomly divided into patient control (PCs) and scalp acupuncture (SAs) groups with left hemiplegia due to ischemic stroke, and we also selected 20 matched healthy controls (HCs). The PCs were treated with conventional Western medicine, while the SAs were treated with scalp acupuncture (acupuncture at the right anterior oblique line of vertex temporal). All subjects received whole-brain resting-state functional magnetic resonance imaging (rs-fMRI) scan before treatment, and the patients received a second scan after 14 days of treatment. We use the National Institutes of Health Stroke Scale (NIHSS) scores and the analyses of resting-state functional connectivity (RSFC) as the observational indicators.ResultsThe contralateral and ipsilateral cortex of hemiplegic patients with cerebral infarction were associated with an abnormal increase and decrease in basal internode function. An abnormal increase in functional connectivity mainly exists in the ipsilateral hemisphere between the cortex and basal ganglia and reduces the abnormal functional connectivity in the cortex and contralateral basal ganglia. Increased RSFC was observed in the bilateral BA6 area and bilateral basal ganglia and the connectivity between bilateral basal ganglia nuclei improved. However, the RSFC of the conventional treatment group only improved in the unilateral basal ganglia and contralateral BA6 area. The RSFC in the left middle frontal gyrus, superior temporal gyrus, precuneus, and other healthy brain regions were enhanced in SAs after treatment.ConclusionThe changes in functional connectivity between the cerebral cortex and basal ganglia in patients with cerebral infarction showed a weakening of the bilateral hemispheres and the enhancement of the connections between the hemispheres. Scalp acupuncture has the function of bidirectional regulation, which makes the unbalanced abnormal brain function state restore balance.https://www.frontiersin.org/articles/10.3389/fneur.2023.1083066/fullstrokeresting-state functional magnetic resonance imaginghemiplegiascalp acupuncturefunctional connectivity
spellingShingle Dan Lin
Jinyang Gao
Mengxin Lu
Xiao Han
Zhongjian Tan
Yihuai Zou
Fangyuan Cui
Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
Frontiers in Neurology
stroke
resting-state functional magnetic resonance imaging
hemiplegia
scalp acupuncture
functional connectivity
title Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
title_full Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
title_fullStr Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
title_full_unstemmed Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
title_short Scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
title_sort scalp acupuncture regulates functional connectivity of cerebral hemispheres in patients with hemiplegia after stroke
topic stroke
resting-state functional magnetic resonance imaging
hemiplegia
scalp acupuncture
functional connectivity
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1083066/full
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