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A Simple Cell-based Immunofluorescence Assay to Detect Autoantibody Against the N-Methyl-D-Aspartate NMDA Receptor in Blood
Published on: January 9, 2018
[Cryptococcal Encephalitis Complicating Anti-N-methyl-D-aspartate Receptor Encephalitis in an Immunosuppressed
Dongming Liu1, Hongwei Xu1, Fang Yi1
1Department of Geriatric Neurology,Xiangya Hospital,Central South University,Changsha 410008,China.
Abstract:
Cryptococcal encephalitis is a fatal central nervous system infectious disease,whereas anti-N-methyl-D-aspartate(NMDA)receptor encephalitis(NMDARE)is an autoimmune syndrome associated with psychological symptoms,behavioural abnormalities,seizures,and dyskinesias.Despite their distinct pathologies and pathogenic mechanisms,both of them can lead to cognitive dysfunction and abnormal behaviors,although anti-NMDARE can also have mood and mental disorders as its core manifestations.A patient with nephrotic syndrome accompanied by both cryptococcal encephalitis and anti-NMDARE was treated in our center,which for the first confirmed that these two conditions could coexist in one patient.The underlying mechanism may be similar to that of anti-NMDARE after other infections.
Insights
This study reports the first confirmed case of a patient simultaneously diagnosed with cryptococcal encephalitis and anti-N-methyl-D-aspartate receptor encephalitis (NMDARE). This rare co-occurrence highlights potential shared mechanisms between infectious and autoimmune neurological diseases.
Area of Science:
- Neurology
- Infectious Diseases
- Immunology
Background:
- Cryptococcal encephalitis is a fatal CNS infection.
- Anti-N-methyl-D-aspartate receptor encephalitis (NMDARE) is an autoimmune disorder with diverse neurological and psychiatric symptoms.
- Both conditions can cause cognitive dysfunction and behavioral changes.
Observation:
- A patient with nephrotic syndrome presented with concurrent cryptococcal encephalitis and NMDARE.
- This case represents the first documented instance of these two distinct neurological conditions coexisting in a single patient.
Findings:
- The coexistence of cryptococcal encephalitis and NMDARE was confirmed in a single patient.
- The underlying pathogenic mechanisms may share similarities with NMDARE triggered by other infections.
Implications:
- This finding expands the understanding of potential triggers and co-morbidities in autoimmune encephalitis.
- It suggests that infectious processes might play a role in the pathogenesis of autoimmune neurological disorders.
- Further research is warranted to explore the interplay between infections and autoimmunity in the central nervous system.
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