No association between Parkinson disease and autoantibodies against NMDA-type glutamate receptors

  • Background: IgG-class autoantibodies to N-Methyl-D-Aspartate (NMDA)-type glutamate receptors define a novel entity of autoimmune encephalitis. Studies examining the prevalence of NMDA IgA/IgM antibodies in patients with Parkinson disease with/without dementia produced conflicting results. We measured NMDA antibodies in a large, well phenotyped sample of Parkinson patients without and with cognitive impairment (n = 296) and controls (n = 295) free of neuropsychiatric disease. Detailed phenotyping and large numbers allowed statistically meaningful correlation of antibody status with diagnostic subgroups as well as quantitative indicators of disease severity and cognitive impairment. Methods: NMDA antibodies were analysed in the serum of patients and controls using well established validated assays. We used anti-NMDA antibody positivity as the main independent variable and correlated it with disease status and phenotypic characteristics. Results: The frequency of NMDA IgA/IgM antibodies was lower in Parkinson patients (13%) than in controls (22%) and higher than in previous studies in both groups. NMDA IgA/IgM antibodies were neither significantly associated with diagnostic subclasses of Parkinson disease according to cognitive impairment, nor with quantitative indicators of disease severity and cognitive impairment. A positive NMDA antibody status was positively correlated with age in controls but not in Parkinson patients. Conclusion: It is unlikely albeit not impossible that NMDA antibodies play a significant role in the pathogenesis or progression of Parkinson disease e.g. to Parkinson disease with dementia, while NMDA IgG antibodies define a separate disease of its own.

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Author:Franziska Hopfner, Stefanie H. Müller, Dagmar Steppat, Joanna Miller, Nele Schmidt, Klaus-Peter Wandinger, Frank Leypoldt, Daniela Berg, Andre Franke, Wolfgang Lieb, Lukas Tittmann, Monika Balzer-Geldsetzer, Simon Baudrexel, Richard Dodel, Rüdiger Hilker-Roggendorf, Elke Kalbe, Jan Kassubek, Thomas Klockgether, Inga Liepelt-Scarfone, Brit Mollenhauer, Petra Neuser, Kathrin Reetz, Oliver Riedel, Claudia Schulte, Jörg B. Schulz, Annika Spottke, Alexander Storch, Claudia Trenkwalder, Hans-Ulrich Wittchen, Karsten Witt, Ullrich Wüllner, Günther Deuschl, Gregor Kuhlenbäumer
URN:urn:nbn:de:hebis:30:3-502492
DOI:https://doi.org/10.1186/s40035-019-0153-0
ISSN:2047-9158
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/30984390
Parent Title (English):Translational neurodegeneration
Publisher:Biomed Central
Place of publication:London
Document Type:Article
Language:English
Year of Completion:2019
Date of first Publication:2019/04/03
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/05/13
Tag:Cognitive impairment; NMDA IgA/IgM antibodies; NMDA antibody; Parkinson disease
Volume:8
Issue:Art. 11
Page Number:7
First Page:1
Last Page:7
Note:
Open Access: This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
HeBIS-PPN:451015045
Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0