ArticleParkinson's disease2021
Altered Regional Homogeneity and Functional Connectivity during Microlesion Period after Deep Brain Stimulation in Parkinson's Disease.
Article in Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Dynamic Reconfiguration of Cognitive Networks and Recovery From Microlesion Effects in Parkinson's Disease: Insights From a Longitudinal fNIRS Study.CNS neuroscience & therapeutics · 2026Article
- Opposite causal effects of type 2 diabetes and metformin on Alzheimer's disease.The journal of prevention of Alzheimer's disease · 2025Article
- Altered Cognitive Networks Connectivity in Parkinson's Disease During the Microlesion Period After Deep Brain Stimulation.CNS neuroscience & therapeutics · 2024Article
- Reorganization of motor network in patients with Parkinson's disease after deep brain stimulation.CNS neuroscience & therapeutics · 2024Article
- Cognitive aspects of motor control deteriorate while off treatment following subthalamic nucleus deep brain stimulation surgery in Parkinson's disease.Frontiers in neurology · 2024Article
- Insertional effect following electrode implantation: an underreported but important phenomenon.Brain communications · 2024Review
- Functional brain controllability in Parkinson's disease and its association with motor outcomes after deep brain stimulation.Frontiers in neuroscience · 2024Article
- Inherent regional brain activity changes in male obstructive sleep apnea with mild cognitive impairment: A resting-state magnetic resonance study.Frontiers in aging neuroscience · 2022Article
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Authors and funding
9 authors.
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Abstract
backgroundPatients with Parkinson's disease (PD) undergoing deep brain electrode implantation experience a temporary improvement in motor symptoms before the electrical stimulation begins. We usually call this the microlesion effect (MLE), but the mechanism behind it is not clear. PURPOSE: This study aimed to assess the alterations in brain functions at the regional and whole-brain levels, using regional homogeneity (ReHo) and functional connectivity (FC), during the postoperative microlesion period after deep brain stimulation (DBS) in PD patients.
methodResting-state functional MRI data were collected from 27 PD patients before and after the first day of DBS and 12 healthy controls (HCs) in this study. The ReHo in combination with FC analysis was used to investigate the alterations of regional brain activity in all the subjects.
resultsThere were increased ReHo in the basal ganglia-thalamocortical circuit (left supplementary motor area and bilateral paracentral lobule), whereas decreased ReHo in the default mode network (DMN) (left angular gyrus, bilateral precuneus), prefrontal cortex (bilateral middle frontal gyrus), and the cerebello-thalamocortical (CTC) circuit (Cerebellum_crus2/1_L) after DBS. In addition, we also found abnormal FC in the lingual gyrus, cerebellum, and DMN.
conclusionMicrolesion of the thalamus caused by electrode implantation can alter the activity of the basal ganglia-thalamocortical circuit, prefrontal cortex, DMN, and CTC circuit and induce abnormal FC in the lingual gyrus, cerebellum, prefrontal cortex, and DMN among PD patients. The findings of this study contribute to the understanding of the mechanism of MLE.
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