Evidence map›Paper›PMID 36097517›Full record

ArticleeNeurologicalSci2022

Motor cortical plasticity and its correlation with motor symptoms in Parkinson's disease.

Shotaro Moriyasu, Takahiro Shimizu, Makoto Honda, Yoshikazu Ugawa, Ritsuko Hanajima

Open access · goldAbstract read
In one paragraph

Article in eNeurologicalSci, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Clinical neurophysiology in the treatment of movement disorders: IFCN handbook chapter.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Shotaro MoriyasuDivision of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan.
Takahiro ShimizuDivision of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan.
Makoto HondaDivision of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan.
Yoshikazu UgawaDepartment of Human Neurophysiology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan.
Ritsuko HanajimaDivision of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan.
Tottori University · JPFukushima Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The relationship between abnormal cortical plasticity and parkinsonian symptoms remains unclear in Parkinson's disease (PD). Objective: We studied the relationship between their symptoms and degree of Long-term potentiation (LTP)-like effects induced by quadripulse magnetic stimulation (QPS) over the primary motor cortex, which has a small inter-individual variability in humans. Methods: Participants were 16 PD patients (drug-naïve or treated with L-DOPA monotherapy) and 13 healthy controls (HC). LTP-like effects by QPS were compared between three conditions (HC、PD with or without L-DOPA). In PD, correlation analyses were performed between clinical scores (MDS-UPDRS, MMSE and MoCA-J) and the degree of LTP-like effects induced by QPS. Results: In PD, QPS-induced LTP-like effect was reduced and restored by L-DOPA. The degree of the LTP was negatively correlated with MDS-UPDRS Part I and III scores, but not with MMSE and MoCA-J. In the sub-scores, upper limb bradykinesia and rigidity showed a negative correlation with the LTP-like effect whereas the tremor had no correlation. Conclusions: Our results suggest that motor cortical plasticity relate with mechanisms underlying bradykinesia and rigidity in the upper limb muscles. LTP induced by QPS may be used as an objective marker of parkinsonian symptoms.

Indexed as

BradykinesiaL-DOPA, L-3,4-dihydroxyphenylalanineMDS-UPDRS, the Movement Disorders Society Unified Parkinson's Disease Rating ScaleMMSE, Mini-Mental State ExaminationMoCA-J, the Japanese version of Montreal Cognitive AssessmentParkinson's diseasePrimary motor cortexQuadripulse magnetic stimulation (QPS)Rigidity, long-term potentiation (LTP)

Identifiers

PMID36097517
PMCPMC9463550
OpenAlexW4294052475

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.