Evidence map›Paper›PMID 37612469›Full record

ArticleJournal of neural transmission (Vienna, Austria : 1996)2023

Bradykinesia and rigidity modulated by functional connectivity between the primary motor cortex and globus pallidus in Parkinson's disease.

Kaoru Kinugawa, Tomoo Mano, Shigekazu Fujimura, Tsunenori Takatani, Toshiteru Miyasaka, Kazuma Sugie

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Article in Journal of neural transmission (Vienna, Austria : 1996), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Kaoru KinugawaDepartment of Neurology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8521, Japan.
Tomoo ManoDepartment of Neurology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8521, Japan. manoneuro@naramed-u.ac.jp.ORCID 0000-0002-0084-1577
Shigekazu FujimuraDepartment of Rehabilitation Medicine, Nara Medical University, Kashihara, Japan.
Tsunenori TakataniDivision of Central Clinical Laboratory, Nara Medical University, Kashihara, Japan.
Toshiteru MiyasakaDepartment of Radiology, Nara Medical University, Kashihara, Japan.
Kazuma SugieDepartment of Neurology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8521, Japan.

Funding

Grants-in-Aid (grant number KAKENHI No. 20K19453) 20K19453
6 · The paper itself

Abstract

The mechanisms underlying motor fluctuations in patients with Parkinson's disease (PD) are currently unclear. Regional brain stimulation reported the changing of motor symptoms, but the correlation with functional connectivity (FC) in the brain network is not fully understood. Hence, our study aimed to explore the relationship between motor symptom severity and FC using resting-state functional magnetic resonance imaging (rsfMRI) in the "on" and "off" states of PD. In 26 patients with sporadic PD, FC was assessed using rsfMRI, and clinical severity was analyzed using the motor part of the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS Part III) in the on and off states. Correlations between FC values and MDS-UPDRS Part III scores were assessed using Pearson's correlation coefficient. The correlation between FC and motor symptoms differed in the on and off states. FC between the ipsilateral precentral gyrus (PreCG) and globus pallidus (GP) correlated with the total MDS-UPDRS Part III scores and those for bradykinesia/rigidity in the off state. Lateralization analysis indicated that FC between the PreCG and GP correlated with the contralateral total MDS-UPDRS Part III scores and those for bradykinesia/rigidity in the off state. Aberrant FC in cortico-striatal circuits correlated with the severity of motor symptoms in PD. Cortico-striatal hyperconnectivity, particularly in motor pathways involving PreCG and GP, is related to motor impairments in PD. These findings may facilitate our understanding of the mechanisms underlying motor symptoms in PD and aid in developing treatment strategies such as brain stimulation for motor impairment.

Indexed as

Motor CortexParkinson DiseaseGlobus PallidusHumansHypokinesiaMagnetic Resonance ImagingGlobus pallidusMotor symptomsOn–off fluctuationsParkinson’s diseaseResting-state functional MRI

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.