Evidence map›Paper›PMID 28960581›Full record

ArticleJournal of magnetic resonance imaging : JMRI2018

Inhibitory motor dysfunction in parkinson's disease subtypes.

Tao Gong, Yuanyuan Xiang, Muhammad G Saleh, Fei Gao, Weibo Chen, Richard A E Edden, Guangbin Wang

Abstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Topography of Regional Cerebral GABAThe European journal of neuroscience · 2026
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  19. UsingFrontiers in pharmacology · 2022
    Review
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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

7 authors at 3 institutions in 2 countries.

Tao GongDepartment of MR, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, P.R. China.
Yuanyuan XiangDepartment of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, P.R. China.
Muhammad G SalehRussell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Fei GaoDepartment of MR, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, P.R. China.
Weibo ChenPhilips Healthcare, Shanghai, P.R. China.
Richard A E EddenRussell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0002-0671-7374
Guangbin WangDepartment of MR, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, P.R. China.
Shandong University · CNKennedy Krieger Institute · USPhilips (China) · CN

Funding

TR&D 4: Algorithms for functional and anatomical brain analysisP41EB015909 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI VAN ZIJL, PETER CM · 2012 to 2020
$13.1M
Universal GABA-edited MRS at 3TR01EB016089 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI Richard Anthony Edward Edden · 2013 to 2026
$5.4M
Simultaneous Hadamard Editing of GABA and GlutathioneR01EB023963 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI EDDEN, RICHARD ANTHONY EDWARD · 2017 to 2024
$3.8M
Somatosensory Inhibitory Dysfunction in Autism Spectrum Disorder.R01MH106564 · NIMH · JOHNS HOPKINS UNIVERSITY · PI EDDEN, RICHARD ANTHONY EDWARD · 2016 to 2020
$2.5M
NIBIB NIH HHS P41 EB015909NIBIB NIH HHS R01 EB016089NIBIB NIH HHS R01 EB023963NIMH NIH HHS R01 MH106564
6 · The paper itself

Abstract

backgroundParkinson's disease (PD) is divided into postural instability gait difficulty (PIGD) and tremor-dominant (TD) subtypes. Increasing evidence has suggested that the GABAergic neurotransmitter system is involved in the pathogenesis of PD. PURPOSE: To evaluate the differences of GABA levels between PD motor subtypes using MEscher-GArwood Point Resolved Spectroscopy (MEGA-PRESS). STUDY TYPE: COHORT.: SUBJECTS: PD patients were classified into PIGD (n = 13) and TD groups (n = 9); 16 age- and sex-matched healthy controls were also recruited. All subjects were right-handed. SEQUENCE: All subjects underwent an magnetic resonance spectroscopy scan including MEGA-PRESS at 3.0T. ASSESSMENT: The detected GABA signal also contains signal from macromolecules (MM) and homocarnosine, so it is referred to as GABA+. GABA + levels and Creatine (Cr) levels were quantified in the left basal ganglia (BG) using Gannet 2.0 by Tao Gong. STATISTICAL TESTS: Differences in GABA + levels between the three groups were analyzed using analysis of covariance. The relationship between GABA levels and a unified PD rating scale (UPDRS) was also analyzed.

resultsGABA + levels were significantly lower in left BG regions of PD patients compared with healthy controls (P < 0.001). In PD patients, the GABA concentration was lower in the TD group than the PIGD group (P = 0.019). Cr levels in PIGD and TD were lower than controls (P = 0.020; P = 0.002). A significant negative correlation was found in PIGD between GABA levels and UPDRS (r = -0.572, P = 0.041), while no correlation was found in TD (r = -0.339, P = 0.372). DATA

conclusionLow BG GABA levels in PD patients, and differences between PIGD/TD patients, suggest that GABAergic dysfunction may play an important role in the pathogenesis of Parkinson's disease. LEVEL OF EVIDENCE: 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:1610-1615.

Indexed as

Magnetic Resonance ImagingMagnetic Resonance SpectroscopyAgedBasal GangliaBrainCase-Control StudiesFemaleGaitGait Disorders, Neurologicgamma-Aminobutyric AcidHumansMaleMiddle AgedParkinson DiseaseTremorgamma-Aminobutyric AcidGABAMEGA-PRESSParkinson's diseasepostural instability gait difficultytremor

Identifiers

PMID28960581
PMCPMC5871546
OpenAlexW2757672347

What OpenQuestion holds

Textmetadata
LicenceTDM
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.