Evidence map›Paper›PMID 33947460›Full record

ArticleAlzheimer's research & therapy2021

Evaluation of cerebrospinal fluid glycoprotein NMB (GPNMB) as a potential biomarker for Alzheimer's disease.

Freyja Aichholzer, Hans-Wolfgang Klafki, Isabella Ogorek, Jonathan Vogelgsang, Jens Wiltfang, Norbert Scherbaum, Sascha Weggen, Oliver Wirths

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
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

14 citing papers in PubMed, 20 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

8 authors at 4 institutions in 2 countries.

Freyja AichholzerDepartment of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Von-Siebold-Str. 5, 37075, Göttingen, Germany.
Hans-Wolfgang KlafkiDepartment of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Von-Siebold-Str. 5, 37075, Göttingen, Germany.
Isabella OgorekDepartment of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany.
Jonathan VogelgsangDepartment of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Von-Siebold-Str. 5, 37075, Göttingen, Germany.
Jens WiltfangDepartment of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Von-Siebold-Str. 5, 37075, Göttingen, Germany.
Norbert ScherbaumLVR-Hospital Essen, Department of Psychiatry and Psychotherapy, Medical Faculty, University of Duisburg-Essen, Essen, Germany.
Sascha WeggenDepartment of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany.
Oliver WirthsDepartment of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Von-Siebold-Str. 5, 37075, Göttingen, Germany. owirths@gwdg.de.ORCID http://orcid.org/0000-0002-4115-0334
University of Göttingen · DEHeinrich Heine University Düsseldorf · DEGerman Center for Neurodegenerative Diseases · DEUniversity of Duisburg-Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) is a neurodegenerative disorder associated with extracellular amyloid-β peptide deposition and progressive neuron loss. Strong evidence supports that neuroinflammatory changes such as the activation of astrocytes and microglia cells are important in the disease process. Glycoprotein nonmetastatic melanoma protein B (GPNMB) is a transmembrane glycoprotein that has recently been associated with an emerging role in neuroinflammation, which has been reported to be increased in post-mortem brain samples from AD and Parkinson's disease patients.

methodsThe present study describes the partial "fit for purpose" validation of a commercially available immunoassay for the determination of GPNMB levels in the cerebrospinal fluid (CSF). We further assessed the applicability of GPNMB as a potential biomarker for AD in two different cohorts that were defined by biomarker-supported clinical diagnosis or by neuroimaging with amyloid positron emission tomography, respectively.

resultsThe results indicated that CSF GPNMB levels could not distinguish between AD or controls with other neurological diseases but correlated with other parameters such as aging and CSF pTau levels.

conclusionsThe findings of this study do not support GPNMB in CSF as a valuable neurochemical diagnostic biomarker of AD but warrant further studies employing healthy control individuals.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesBiomarkersGlycoproteinsHumansMembrane GlycoproteinsMicrogliaPeptide Fragmentstau ProteinsAmyloid beta-PeptidesBiomarkersGlycoproteinsGPNMB protein, humanMembrane GlycoproteinsPeptide Fragmentstau ProteinsAlzheimer’s diseaseBiomarkerCerebrospinal fluidGPNMBImmunoassayInflammation

Identifiers

PMID33947460
PMCPMC8097817
OpenAlexW3157356891

What OpenQuestion holds

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LicenceCC BY
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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.