Evidence map›Paper›PMID 33942926›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2021

Longitudinal Analysis of Multiple Neurotransmitter Metabolites in Cerebrospinal Fluid in Early Parkinson's Disease.

Thomas Kremer, Kirsten I Taylor, Juliane Siebourg-Polster, Thomas Gerken, Andreas Staempfli, Christian Czech, Juergen Dukart, Douglas Galasko, Tatiana Foroud, Lana M Chahine and 13 more

Open access · hybridAbstract read
In one paragraph

Article 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. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

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  14. Early diagnosis of Parkinson's disease: biomarker study.Frontiers in aging neuroscience · 2025
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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

23 authors at 14 institutions in 3 countries.

Thomas KremerRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Kirsten I TaylorRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Juliane Siebourg-PolsterRoche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Thomas GerkenMetanomics Health GmbH, Berlin, Germany.
Andreas StaempfliRoche Pharmaceutical Research and Early Development, Therapeutic Modalities, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Christian CzechRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Juergen DukartRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Douglas GalaskoDepartment of Neurosciences, University of California, San Diego, San Diego, California, USA.
Tatiana ForoudDepartment of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Lana M ChahineDepartment of Neurology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Christopher S CoffeyDepartment of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa, USA.
Tanya SimuniParkinson's Disease and Movement Disorders Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Daniel WeintraubDepartment of Neurology Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-0633-7168
John SeibylInstitute for Neurodegenerative Disorders, New Haven, Connecticut, USA.
Kathleen L PostonDepartment of Neurology & Neurological Sciences, School of Medicine, Stanford University, Stanford, California, USA.ORCID 0000-0003-3424-7143
Arthur W TogaLaboratory of Neuro Imaging, University of Southern California (USC) Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of University of Southern California, Los Angeles, California, USA.
Caroline M TannerDepartment of Neurology, University of California, San Francisco, San Francisco, California, USA.
Kenneth MarekInstitute for Neurodegenerative Disorders, New Haven, Connecticut, USA.
Samantha J HuttenThe Michael J. Fox Foundation for Parkinson's Research, New York, New York, USA.
Sebastian DziadekRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Claudia TrenkwalderDepartment of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany.
Gennaro PaganoRoche Pharmaceutical Research and Early Development, NRD Neuroscience and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Brit MollenhauerParacelsus-Elena-Klinik, Kassel, Germany.
Roche (Switzerland) · CHMichael J. Fox Foundation · USUniversitätsmedizin Göttingen · DEIndiana University School of MedicineInstitute for Neurodegenerative Disorders · USNorthwestern University · USStanford Medicine · USSyneos Health (Germany) · DEUniversity of California, San Francisco · USUniversity of Iowa · USUniversity of Pennsylvania · USUniversity of Pittsburgh · USUniversity of San Diego · USUniversity of Southern California · US

Funding

TR&D3: Intrinsic Surface MappingP41EB015922 · NIBIB · UNIVERSITY OF SOUTHERN CALIFORNIA · PI VAN HORN, JOHN DARRELL · 2012 to 2022
$14.1M
ENIGMA Parkinson’s Initiative: A Global Initiative for Parkinson’s DiseaseR01NS107513 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI POSTON, KATHLEEN LOMBARD, THOMPSON, PAUL M · 2021 to 2025
$3.2M
NIBIB NIH HHS P41 EB015922NINDS NIH HHS R01 NS107513
6 · The paper itself

Abstract

backgroundCerebrospinal fluid (CSF) levels of monoamine metabolites may represent biomarkers of Parkinson's disease (PD).

objectiveThe aim of this study was quantification of multiple metabolites in CSF from PD versus healthy control subjects (HCs), including longitudinal analysis.

methodsAbsolute levels of multiple monoamine metabolites in CSF were quantified by liquid chromatography coupled with tandem mass spectrometry from 161 individuals with early PD and 115 HCs from the Parkinson's Progression Marker Initiative and de novo PD (DeNoPA) studies.

resultsBaseline levels of homovanillic acid (HVA) and 3,4-dihydroxyphenylacetic acid (DOPAC) were lower in individuals with PD compared with HCs. HVA levels correlated with Movement Disorder Society Unified Parkinson's Disease Rating Scale total scores (P < 0.01). Both HVA/dopamine and DOPAC/dopamine levels correlated with caudate nucleus and raw DOPAC with putamen dopamine transporter single-photon emission computed tomography uptake ratios (P < 0.01). No metabolite changed over 2 years in drug-naive individuals, but some changed on starting levodopa treatment.

conclusionsHVA and DOPAC CSF levels mirrored nigrostriatal pathway damage, confirming the central role of dopaminergic degeneration in early PD. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Parkinson Disease3,4-Dihydroxyphenylacetic AcidHomovanillic AcidHumansLevodopaNeurotransmitter Agents3,4-Dihydroxyphenylacetic AcidHomovanillic AcidLevodopaNeurotransmitter AgentsbiomarkercatecholamineCSFhomovanillic acidmonoamine metabolitesneurotransmitterParkinson's disease

Identifiers

PMID33942926
PMCPMC8453505
OpenAlexW3157129664

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.