Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level

Background: Resting tremor in Parkinson’s disease (PD) is associated with the activity in the basal ganglia and cerebello-thalamo-cortical circuits/network. However, most insights stem from functional MRI research, and structural studies, which can provide basis for and constrain functional activity...

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Main Authors: Yuke Zhong, Ying Liu, Huahua Su, Hang Liu, Guohui Liu, Zhihui Liu, Jiahao Wei, Junyi Wang, Yuchen She, Changhong Tan, Lijuan Mo, Lin Han, Fen Deng, Xi Liu, Lifen Chen
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Brain Research Bulletin
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Online Access:http://www.sciencedirect.com/science/article/pii/S0361923024003034
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author Yuke Zhong
Ying Liu
Huahua Su
Hang Liu
Guohui Liu
Zhihui Liu
Jiahao Wei
Junyi Wang
Yuchen She
Changhong Tan
Lijuan Mo
Lin Han
Fen Deng
Xi Liu
Lifen Chen
author_facet Yuke Zhong
Ying Liu
Huahua Su
Hang Liu
Guohui Liu
Zhihui Liu
Jiahao Wei
Junyi Wang
Yuchen She
Changhong Tan
Lijuan Mo
Lin Han
Fen Deng
Xi Liu
Lifen Chen
author_sort Yuke Zhong
collection DOAJ
description Background: Resting tremor in Parkinson’s disease (PD) is associated with the activity in the basal ganglia and cerebello-thalamo-cortical circuits/network. However, most insights stem from functional MRI research, and structural studies, which can provide basis for and constrain functional activity, remains limited. Methods: We investigated the structural change in PD patients with resting tremor (PD-WR) from a network perspective. 42 early-stage PD-WR, 27 PD patients without resting tremor (PD-NR), and 56 healthy controls (HC) were included. Results: PD-WR showed lower cortical thickness in several motor-related lobules. Compared to HC, significant atrophy was found in right lobule VIIA (t = -3.076, p = 0.016, Cohen's d = 0.627), left lobule VI (t = -3.323, p = 0.007, Cohen's d = 0.678), and right lobule VI (t = -3.052, p = 0.017, Cohen's d = 0.623) in PD-WR. Compared to PD-NR, left lobule V also had a significant reduction (t = -2.958, p = 0.023, d = −0.657). PD-WR had higher fractional anisotropy in cerebello-cortical connection compared to HC (t = 3.209, p = 0.009, d = 0.926), with reduced radial (t = -2.561, p = 0.046, d = 0.739) and mean (t = 2.614, p = 0.046, d = 0.871) diffusivity compared to PD-NR. At the network level, better hierarchy (rho = 0.598, p = 0.004), small-worldness (rho = 0.621, p = 0.003), and increased nodal involvement of the thalamus (rho = 0.718, p = 0.031) and motor cortex (rho = 0.660, p = 0.055) were positively correlated with tremor amplitude. Conclusion: Our study supports the alternation of the cerebello-thalamo-cortical circuit in PD-WR. However, further research with other forms of PD, a wide range of disease stage and larger sample size is needed.
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spelling doaj-art-2d065c556da24c74a80c2ae3d92d83732025-08-20T02:36:12ZengElsevierBrain Research Bulletin1873-27472025-01-0122011116910.1016/j.brainresbull.2024.111169Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network levelYuke Zhong0Ying Liu1Huahua Su2Hang Liu3Guohui Liu4Zhihui Liu5Jiahao Wei6Junyi Wang7Yuchen She8Changhong Tan9Lijuan Mo10Lin Han11Fen Deng12Xi Liu13Lifen Chen14Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaDepartment of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaCorrespondence to: 74 Linjiang Road, Yuzhong District, Chongqing 400010, China.; Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaCorrespondence to: 74 Linjiang Road, Yuzhong District, Chongqing 400010, China.; Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, ChinaBackground: Resting tremor in Parkinson’s disease (PD) is associated with the activity in the basal ganglia and cerebello-thalamo-cortical circuits/network. However, most insights stem from functional MRI research, and structural studies, which can provide basis for and constrain functional activity, remains limited. Methods: We investigated the structural change in PD patients with resting tremor (PD-WR) from a network perspective. 42 early-stage PD-WR, 27 PD patients without resting tremor (PD-NR), and 56 healthy controls (HC) were included. Results: PD-WR showed lower cortical thickness in several motor-related lobules. Compared to HC, significant atrophy was found in right lobule VIIA (t = -3.076, p = 0.016, Cohen's d = 0.627), left lobule VI (t = -3.323, p = 0.007, Cohen's d = 0.678), and right lobule VI (t = -3.052, p = 0.017, Cohen's d = 0.623) in PD-WR. Compared to PD-NR, left lobule V also had a significant reduction (t = -2.958, p = 0.023, d = −0.657). PD-WR had higher fractional anisotropy in cerebello-cortical connection compared to HC (t = 3.209, p = 0.009, d = 0.926), with reduced radial (t = -2.561, p = 0.046, d = 0.739) and mean (t = 2.614, p = 0.046, d = 0.871) diffusivity compared to PD-NR. At the network level, better hierarchy (rho = 0.598, p = 0.004), small-worldness (rho = 0.621, p = 0.003), and increased nodal involvement of the thalamus (rho = 0.718, p = 0.031) and motor cortex (rho = 0.660, p = 0.055) were positively correlated with tremor amplitude. Conclusion: Our study supports the alternation of the cerebello-thalamo-cortical circuit in PD-WR. However, further research with other forms of PD, a wide range of disease stage and larger sample size is needed.http://www.sciencedirect.com/science/article/pii/S0361923024003034Resting tremorParkinson’s diseaseDimmer switch modelBrain network
spellingShingle Yuke Zhong
Ying Liu
Huahua Su
Hang Liu
Guohui Liu
Zhihui Liu
Jiahao Wei
Junyi Wang
Yuchen She
Changhong Tan
Lijuan Mo
Lin Han
Fen Deng
Xi Liu
Lifen Chen
Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
Brain Research Bulletin
Resting tremor
Parkinson’s disease
Dimmer switch model
Brain network
title Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
title_full Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
title_fullStr Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
title_full_unstemmed Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
title_short Structural changes in early-stage Parkinson’s disease with resting tremor at node, edge and network level
title_sort structural changes in early stage parkinson s disease with resting tremor at node edge and network level
topic Resting tremor
Parkinson’s disease
Dimmer switch model
Brain network
url http://www.sciencedirect.com/science/article/pii/S0361923024003034
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