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Published in: BMC Neurology 1/2014

Open Access 01-12-2014 | Research article

Anti-leucine rich glioma inactivated 1 protein and anti-N-methyl-D-aspartate receptor encephalitis show distinct patterns of brain glucose metabolism in 18F-fluoro-2-deoxy-d-glucose positron emission tomography

Authors: Florian Wegner, Florian Wilke, Peter Raab, Said Ben Tayeb, Anna-Lena Boeck, Cathleen Haense, Corinna Trebst, Elke Voss, Christoph Schrader, Frank Logemann, Jörg Ahrens, Andreas Leffler, Rea Rodriguez-Raecke, Reinhard Dengler, Lilli Geworski, Frank M Bengel, Georg Berding, Martin Stangel, Elham Nabavi

Published in: BMC Neurology | Issue 1/2014

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Abstract

Background

Pathogenic autoantibodies targeting the recently identified leucine rich glioma inactivated 1 protein and the subunit 1 of the N-methyl-D-aspartate receptor induce autoimmune encephalitis. A comparison of brain metabolic patterns in 18F-fluoro-2-deoxy-d-glucose positron emission tomography of anti-leucine rich glioma inactivated 1 protein and anti-N-methyl-D-aspartate receptor encephalitis patients has not been performed yet and shall be helpful in differentiating these two most common forms of autoimmune encephalitis.

Methods

The brain 18F-fluoro-2-deoxy-d-glucose uptake from whole-body positron emission tomography of six anti-N-methyl-D-aspartate receptor encephalitis patients and four patients with anti-leucine rich glioma inactivated 1 protein encephalitis admitted to Hannover Medical School between 2008 and 2012 was retrospectively analyzed and compared to matched controls.

Results

Group analysis of anti-N-methyl-D-aspartate encephalitis patients demonstrated regionally limited hypermetabolism in frontotemporal areas contrasting an extensive hypometabolism in parietal lobes, whereas the anti-leucine rich glioma inactivated 1 protein syndrome was characterized by hypermetabolism in cerebellar, basal ganglia, occipital and precentral areas and minor frontomesial hypometabolism.

Conclusions

This retrospective 18F-fluoro-2-deoxy-d-glucose positron emission tomography study provides novel evidence for distinct brain metabolic patterns in patients with anti-leucine rich glioma inactivated 1 protein and anti-N-methyl-D-aspartate receptor encephalitis.
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Metadata
Title
Anti-leucine rich glioma inactivated 1 protein and anti-N-methyl-D-aspartate receptor encephalitis show distinct patterns of brain glucose metabolism in 18F-fluoro-2-deoxy-d-glucose positron emission tomography
Authors
Florian Wegner
Florian Wilke
Peter Raab
Said Ben Tayeb
Anna-Lena Boeck
Cathleen Haense
Corinna Trebst
Elke Voss
Christoph Schrader
Frank Logemann
Jörg Ahrens
Andreas Leffler
Rea Rodriguez-Raecke
Reinhard Dengler
Lilli Geworski
Frank M Bengel
Georg Berding
Martin Stangel
Elham Nabavi
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2014
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/1471-2377-14-136

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