Possible temporal relationship between SARS-CoV-2 infection and anti-NMDA receptor encephalitis: a meta-analysis

Bibliographic Details
Title: Possible temporal relationship between SARS-CoV-2 infection and anti-NMDA receptor encephalitis: a meta-analysis
Authors: Veronika Vasilevska, Paul C. Guest, Michael Szardenings, Michael E. Benros, Johann Steiner
Source: Translational Psychiatry, Vol 14, Iss 1, Pp 1-15 (2024)
Publisher Information: Nature Publishing Group, 2024.
Publication Year: 2024
Collection: LCC:Neurosciences. Biological psychiatry. Neuropsychiatry
Subject Terms: Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
More Details: Abstract The global impact of SARS-CoV-2 infection has raised concerns about secondary diseases beyond acute illness. This review explores the significance and potential underlying mechanisms of how SARS-CoV-2 infection might elicit an immune response targeting N-methyl-D-aspartate (NMDA) receptors, and its implications for autoimmune-driven neuropsychiatric manifestations. We identified 19 published case reports of NMDA receptor encephalitis associated with SARS-CoV-2 infection or vaccination by a systematic literature search. The significance of these reports was limited since it is not clear if a coincidental or causal relationship exists between SARS-CoV-2 infection or vaccination and manifestation of NMDA receptor encephalitis. The included studies were hampered by difficulties in establishing if these patients had pre-existing NMDA receptor antibodies which entered the brain by infection- or vaccination-associated transient blood-brain barrier leakage. In addition, four cases had comorbid ovarian teratoma, which is a known trigger for development of NMDA receptor encephalitis. Considering that billions of people have contracted COVID-19 or have been vaccinated against this virus, the publication of only 19 case reports with a possible link to NMDA receptor encephalitis, indicates that it is rare. In conclusion, these findings do not support the case that SARS-CoV-2 infection or vaccination led to an increase of existing or de novo encephalitis mediated by an autoimmune response targeting NMDA receptor function. Nevertheless, this work underscores the importance of ongoing vigilance in monitoring viral outbreaks and their potential impact on the central nervous system through basic, epidemiological and translational research.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2158-3188
Relation: https://doaj.org/toc/2158-3188
DOI: 10.1038/s41398-024-02831-0
Access URL: https://doaj.org/article/2ca0adc8d8424f01a1de0158a1f14a63
Accession Number: edsdoj.2ca0adc8d8424f01a1de0158a1f14a63
Database: Directory of Open Access Journals
More Details
ISSN:21583188
DOI:10.1038/s41398-024-02831-0
Published in:Translational Psychiatry
Language:English