Evidence map›Paper›PMID 33427336›Full record

SynthesisMovement disorders : official journal of the Movement Disorder Society2021

Brain Motor Network Changes in Parkinson's Disease: Evidence from Meta-Analytic Modeling.

Damian M Herz, David Meder, Julia A Camilleri, Simon B Eickhoff, Hartwig R Siebner

Registry-linked trialOpen access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in Movement disorders : official journal of the Movement Disorder Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05169827 (How Cerebral Plasticity Shapes Symptom Progression in Parkinson's Disease), which is not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.5field-weighted citation impact, top 6% 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.

NCT05169827 completednot on this map

How Cerebral Plasticity Shapes Symptom Progression in Parkinson's Disease: a Longitudinal Neuroimaging Study

TypeobservationalSponsorRadboud University Medical CenterRan2019 to 2023Enrolled115ConditionsParkinson Disease
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 46 citations in OpenAlex.

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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 3 institutions in 2 countries.

Damian M HerzDanish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.ORCID 0000-0002-0503-6008
David MederDanish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Julia A CamilleriResearch Center Juelich, Institute of Neuroscience and Medicine, Brain & Behaviour (INM-7), Juelich, Germany.
Simon B EickhoffResearch Center Juelich, Institute of Neuroscience and Medicine, Brain & Behaviour (INM-7), Juelich, Germany.
Hartwig R SiebnerDanish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Forschungszentrum Jülich · DEHvidovre Hospital · DKUniversity of Copenhagen · DK

Funding

Meta-anaylsis in human brain mappingR01MH074457 · NIMH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FOX, PETER THORNTON · 2006 to 2024
$10.5M
Meta-analysis in human brain mappingR56MH074457 · NIMH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FOX, PETER THORNTON · 2020 to 2020
$543k
NIMH NIH HHS R01 MH074457NIMH NIH HHS R56 MH074457
6 · The paper itself

Abstract

backgroundMotor-related brain activity in Parkinson's disease has been investigated in a multitude of functional neuroimaging studies, which often yielded apparently conflicting results. Our previous meta-analysis did not resolve inconsistencies regarding cortical activation differences in Parkinson's disease, which might be related to the limited number of studies that could be included. Therefore, we conducted a revised meta-analysis including a larger number of studies. The objectives of this study were to elucidate brain areas that consistently show abnormal motor-related activation in Parkinson's disease and to reveal their functional connectivity profiles using meta-analytic approaches.

methodsWe applied a quantitative meta-analysis of functional neuroimaging studies testing limb movements in Parkinson's disease comprising data from 39 studies, of which 15 studies (285 of 571 individual patients) were published after the previous meta-analysis. We also conducted meta-analytic connectivity modeling to elucidate the connectivity profiles of areas showing abnormal activation.

resultsWe found consistent motor-related underactivation of bilateral posterior putamen and cerebellum in Parkinson's disease. Primary motor cortex and the supplementary motor area also showed deficient activation, whereas cortical regions localized directly anterior to these areas expressed overactivation. Connectivity modeling revealed that areas showing decreased activation shared a common pathway through the posterior putamen, whereas areas showing increased activation were connected to the anterior putamen.

conclusionsDespite conflicting results in individual neuroimaging studies, this revised meta-analytic approach identified consistent patterns of abnormal motor-related activation in Parkinson's disease. The distinct patterns of decreased and increased activity might be determined by their connectivity with different subregions of the putamen. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Parkinson DiseaseBrainFunctional NeuroimagingHumansMagnetic Resonance ImagingNeural Pathwaysfunctional neuroimagingmeta-analysismotorParkinson's disease

Identifiers

PMID33427336
PMCPMC8127399
OpenAlexW3119566108

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.