1
|
Khatami SS, Revheim ME, Høilund-Carlsen PF, Alavi A, Ghorbani Shirkouhi S, Andalib S. Central nervous system manifestations following vaccination against COVID-19. Brain Behav Immun Health 2024; 38:100788. [PMID: 38818372 PMCID: PMC11137405 DOI: 10.1016/j.bbih.2024.100788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 03/03/2024] [Accepted: 05/02/2024] [Indexed: 06/01/2024] Open
Abstract
Coronavirus disease 2019 (COVID-19) vaccination has become the most effective countermeasure in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. However, vaccination is associated with side effects. This narrative review focuses on central nervous system (CNS) manifestations following COVID-19 vaccination and provides a summary of the potential underlying mechanisms and methods of diagnosis and management of the vaccination-related CNS manifestations. Headache, myalgia, optic neuritis, seizure, multiple sclerosis, acute disseminated encephalomyelitis and encephalitis, delirium, acute transverse myelitis, and stroke have been reported after COVID-19 vaccination. Constant headache and myalgia are common manifestations that may necessitate further clinical investigation for stroke. To limit consequences, it is imperative to follow standard treatment protocols for each neurological disorder following COVID-19 vaccination. Immunosuppressive medication can be helpful in the treatment of seizures following vaccination since the immune response is involved in their etiology. Clinicians should be aware of the manifestations after COVID-19 vaccination to respond promptly and effectively. Clinical guidelines for the management of CNS manifestations following COVID-19 vaccination are in high demand and would be useful in each new SARS-CoV-2 variant pandemic.
Collapse
Affiliation(s)
| | - Mona-Elisabeth Revheim
- The Intervention Center, Division of Technology and Innovation, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Poul Flemming Høilund-Carlsen
- Department of Nuclear Medicine, Odense University Hospital, University of Southern Denmark, Odense, Denmark
- Research Unit of Clinical Physiology and Nuclear Medicine, Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Abass Alavi
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Pennsylvania, USA
| | | | - Sasan Andalib
- Research Unit of Neurology, Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- Department of Neurology, Odense University Hospital, Odense, Denmark
| |
Collapse
|
2
|
Damman S, Sukpornchairak P, Ahituv A, Chen A, Wang D, Sawlani K, Steriade C, Abboud H. Unilateral cortical autoimmune encephalitis: A case series and comparison to late-onset Rasmussen's encephalitis. J Neuroimmunol 2024; 391:578350. [PMID: 38728930 DOI: 10.1016/j.jneuroim.2024.578350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/25/2024] [Indexed: 05/12/2024]
Abstract
OBJECTIVE To report a novel anatomical pattern of autoimmune encephalitis characterized by strictly unilateral cortical inflammation and a clinical picture overlapping with late-onset Rasmussen's encephalitis. METHODS We retrospectively gathered data of patients identified at two tertiary referral academic centers who met inclusion criteria. RESULTS We identified twelve cases (average age 65, +/- 19.8 years, 58% female). All patients had unilateral cortical inflammation manifesting with focal seizures, cognitive decline, hemicortical deficits, and unilateral MRI and/or EEG changes. Six cases were idiopathic, two paraneoplastic, two iatrogenic (in the setting of immune checkpoint inhibitors), and two post-COVID-19. Serologically, ten patients were seronegative, one had high titer anti-GAD65, and one had anti-NMDAR. Five patients met Rasmussen's encephalitis criteria, and six did not fully meet the criteria but had symptoms significantly overlapping with the condition. Most patients had significant improvement with immunotherapy. DISCUSSION Unilateral cortical AE seems to be more prevalent in the elderly and more frequently idiopathic and seronegative. Patients with this anatomical variant of autoimmune encephalitis have overlapping features with late-onset Rasmussen's encephalitis but are more responsive to immunotherapy. In cases refractory to immunotherapy, interventions used in refractory Rasmussen's encephalitis may be considered, such as functional hemispherectomy.
Collapse
Affiliation(s)
- Sophia Damman
- Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Persen Sukpornchairak
- Department of Neurology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - Amit Ahituv
- Department of Neurology, New York University Langone Health, 222 East 41st Street, 14th Floor New York, NY 10017, USA
| | - Alex Chen
- Department of Neurology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - David Wang
- Department of Neurology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - Komal Sawlani
- Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA; Department of Neurology, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
| | - Claude Steriade
- Department of Neurology, New York University Langone Health, 222 East 41st Street, 14th Floor New York, NY 10017, USA
| | - Hesham Abboud
- Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA; Multiple Sclerosis and Neuroimmunology Program, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA.
| |
Collapse
|
3
|
Hu X, Cheng S. The role of immunoglobulin in cerebrospinal fluid on the differential diagnosis of autoimmune encephalitis and viral encephalitis in children. BMC Pediatr 2024; 24:386. [PMID: 38851704 PMCID: PMC11161917 DOI: 10.1186/s12887-024-04824-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 05/09/2024] [Indexed: 06/10/2024] Open
Abstract
BACKGROUND A case-control study was conducted to analyze the role of cerebrospinal fluid immunoglobulin in the differential diagnosis of autoimmune encephalitis and viral encephalitis in children. METHODS One hundred and twenty patients with autoimmune encephalitis (AE) treated in our hospital from February 2021 to February 2022 were included as the observation group (AE group). 100 patients with viral encephalitis (VE group) were selected as the control group. The clinical data of all patients were collected and analyzed retrospectively. Immunoglobulin G (IgG) and immunoglobulin A (IgA)in cerebrospinal fluid of the two patients were measured by immune turbidimetry. Immunoglobulin M (IgM), and the diagnostic value of immunoglobulin in cerebrospinal fluid (CSF) in patients with AE was analyzed by receiver working curve (ROC). RESULTS The level of IgG in the cerebrospinal fluid of the AE group was higher than that of the VE group, and the level of IgM was lower than that of the VE group, and the difference was statistically significant (P < 0.05). There was no significant difference in IgA levels between the two groups (P > 0.05). In terms of Magnetic Resonance (MR) features, the paraventricular, hippocampal, occipital and parietal lobes were more involved in AE patients, frontal and temporal lobes were more involved in VE patients, and paraventricular and occipital lobes were involved in MS. The proportion of bilateral extensive lesions in both groups was significantly higher than 50%. The proportions of patients in the AE group involving the lateral ventricle, insula, and parietal lobes were significantly higher than those in the VE group, and the proportions involving the basal ganglia, temporal lobes, and frontal lobes were significantly lower than those in the VE group, and the differences were statistically significant (All P < 0.05). The Area Under Curve (AUC) of IgG, IgA and IgM alone in the diagnosis of AE were 0.795(0.587-0.762), 0.602(0.502-0.631) and 0.627(0.534-0.708), respectively with the sensitivity values of 81.24% and 65.608, respectively and the specificity values of 65.08%, 57.54% and 75.01% respectively. The AUC of IgA + IgM in the diagnosis of AE was 0.733(0.617-0.849), and the sensitivity and specificity are 62.58% and 75.07% respectively. The AUC of IgA + IgG in the diagnosis of AE was 0.823(0.730-0.917), and the sensitivity and specificity were 81.24% and 67.54% respectively. The AUC of IgG + IgM in the diagnosis of AE was 0.886(0.814 ~ 0.958), and the sensitivity and specificity were 84.48% and 77.59% respectively. The AUC of IgA + IgM + IgG in the diagnosis of AE was 0.924 (0.868-0.981) with the sensitivity of 93.82%, and the specificity of 77.56%. CONCLUSION The level of immunoglobulin in cerebrospinal fluid can be used as an effective reference index for the diagnosis of AE. The combined detection of IgA, IgM and IgG can improve the accuracy, sensitivity and specificity of AE.
Collapse
Affiliation(s)
- Xiaolu Hu
- Clinical Laboratory, Jiangxi Province Children's Hospital, Nanchang, Jiangxi, 330000, China
| | - Shen Cheng
- Pediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, 310000, China.
| |
Collapse
|
4
|
Crowe EP, Diaz-Arias LA, Habis R, Vozniak SO, Geocadin RG, Venkatesan A, Tobian AAR, Probasco JC, Bloch EM. Suspected autoimmune encephalitis: A retrospective study of patients referred for therapeutic plasma exchange. J Clin Apher 2024; 39:e22112. [PMID: 38634442 DOI: 10.1002/jca.22112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/16/2024] [Accepted: 02/22/2024] [Indexed: 04/19/2024]
Abstract
INTRODUCTION Autoimmune encephalitis (AE) comprises a heterogeneous group of autoantibody-mediated disorders targeting the brain parenchyma. Therapeutic plasma exchange (TPE), one of several first-line therapies for AE, is often initiated when AE is suspected, albeit prior to an established diagnosis. We sought to characterize the role of TPE in the treatment of suspected AE. METHODS A single-center, retrospective analysis was performed of adults (≥18 years) who underwent at least one TPE procedure for "suspected AE." The following parameters were extracted and evaluated descriptively: clinicopathologic characteristics, treatment course, TPE-related adverse events, outcomes (e.g., modified Rankin scale [mRS]), and diagnosis once investigation was complete. RESULTS A total of 37 patients (median age 56 years, range 28-77 years, 62.2% male) were evaluated. Autoimmune antibody testing was positive in serum for 43.2% (n = 16) and cerebrospinal fluid for 29.7% (n = 11). Patients underwent a median of five TPE procedures (range 3-16), with 97.3% (n = 36) via a central line and 21.6% (n = 8) requiring at least one unit of plasma as replacement fluid. Fifteen patients (40.5%) experienced at least one TPE-related adverse event. Compared with mRS at admission, the mRS at discharge was improved in 21.6% (n = 8), unchanged in 59.5% (n = 22), or worse in 18.9% (n = 7). Final diagnosis of AE was determined to be definite in 48.6% (n = 18), probable in 8.1% (n = 3) and possible in 27.0% (n = 10). Six (16.2%) patients were ultimately determined to have an alternate etiology. CONCLUSION Empiric TPE for suspected AE is generally well-tolerated. However, its efficacy remains uncertain in the absence of controlled trials, particularly in the setting of seronegative disease.
Collapse
Affiliation(s)
- Elizabeth P Crowe
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Luisa A Diaz-Arias
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ralph Habis
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sonja O Vozniak
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Romergryko G Geocadin
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Arun Venkatesan
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Aaron A R Tobian
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - John C Probasco
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Evan M Bloch
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
5
|
Sakharova T, Aringazina R, Lilyanov N, Monov D. Features of the clinical course of Autoimmune Encephalitis Associated with various antibodies. Neurol Sci 2024:10.1007/s10072-024-07604-7. [PMID: 38806881 DOI: 10.1007/s10072-024-07604-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 05/16/2024] [Indexed: 05/30/2024]
Abstract
Despite the increasing incidence of autoimmune encephalitis and the incomplete recovery observed in patients post-affliction, the issue of timely diagnosis remains unresolved. The primary objective of this study is identification the distinctive clinical presentation features evaluation the management strategies, and assess the outcomes of the disease in patients with various forms of autoimmune encephalitis. The research aims to contribute in a better understanding of the disease progression and facilitate the selection of optimal therapeutic interventions. A retrospective observational study enrolled 68 patients aged 18 years and older with verified autoimmune encephalitis who underwent treatment in state hospitals in Sofia, Bulgaria, from the beginning of 2014 to the end of 2022. The number of patients with pathology linked to antibodies against glycine receptors (Gly-R) was half as much, with 32 and 17 patients, respectively. The primary manifestations of autoimmune encephalitis included cognitive impairments observed in 51 patients, seizures occurring in 44 patients, and mood disorders observed in 22 patients. While the findings of imaging studies were nonspecific, hospitalizations for patients with this pathology, especially those with antibodies to CASPR2 and DPPX, were prolonged (114 and 232 days, respectively). In the vast majority of cases, incomplete recovery with residual symptoms was noted. Among the diverse forms of autoimmune encephalitis, the most prevalent is NMDA-R. Cognitive impairments predominate in the autoimmune encephalitis clinical presentation. Prolonged hospitalization periods and incomplete recovery of patients are characteristic features of autoimmune encephalitis, despite combined therapy involving intravenous administration of methylprednisolone and immunoglobulins.
Collapse
Affiliation(s)
- Tatyana Sakharova
- Department of Biology and General Genetics, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Raisa Aringazina
- Department of Internal Diseases № 1, Non-Commercial Joint-Stock Society «West Kazakhstan Marat Ospanov Medical University», Aktobe, Kazakhstan
| | - Nikolay Lilyanov
- Department of Anesthesiology and Intensive Care, Medical University of Sofia, Sofia, Bulgaria.
| | - Dimitar Monov
- Department of Anesthesiology and Intensive Care, Medical University of Sofia, Sofia, Bulgaria
| |
Collapse
|
6
|
Stake J, Spiekers C, Akkurt BH, Heindel W, Brix T, Mannil M, Musigmann M. Prediction of Seropositivity in Suspected Autoimmune Encephalitis by Use of Radiomics: A Radiological Proof-of-Concept Study. Diagnostics (Basel) 2024; 14:1070. [PMID: 38893597 PMCID: PMC11171889 DOI: 10.3390/diagnostics14111070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 06/21/2024] Open
Abstract
In this study, we sought to evaluate the capabilities of radiomics and machine learning in predicting seropositivity in patients with suspected autoimmune encephalitis (AE) from MR images obtained at symptom onset. In 83 patients diagnosed with AE between 2011 and 2022, manual bilateral segmentation of the amygdala was performed on pre-contrast T2 images using 3D Slicer open-source software. Our sample of 83 patients contained 43 seropositive and 40 seronegative AE cases. Images were obtained at our tertiary care center and at various secondary care centers in North Rhine-Westphalia, Germany. The sample was randomly split into training data and independent test data. A total of 107 radiomic features were extracted from bilateral regions of interest (ROIs). Automated machine learning (AutoML) was used to identify the most promising machine learning algorithms. Feature selection was performed using recursive feature elimination (RFE) and based on the determination of the most important features. Selected features were used to train various machine learning algorithms on 100 different data partitions. Performance was subsequently evaluated on independent test data. Our radiomics approach was able to predict the presence of autoantibodies in the independent test samples with a mean AUC of 0.90, a mean accuracy of 0.83, a mean sensitivity of 0.84 and a mean specificity of 0.82, with Lasso regression models yielding the most promising results. These results indicate that radiomics-based machine learning could be a promising tool in predicting the presence of autoantibodies in suspected AE patients. Given the implications of seropositivity for definitive diagnosis of suspected AE cases, this may expedite diagnostic workup even before results from specialized laboratory testing can be obtained. Furthermore, in conjunction with recent publications, our results indicate that characterization of AE subtypes by use of radiomics may become possible in the future, potentially allowing physicians to tailor treatment in the spirit of personalized medicine even before laboratory workup is completed.
Collapse
Affiliation(s)
- Jacob Stake
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| | - Christine Spiekers
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| | - Burak Han Akkurt
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| | - Walter Heindel
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| | - Tobias Brix
- Institute of Medical Informatics, University of Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
| | - Manoj Mannil
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| | - Manfred Musigmann
- University Clinic for Radiology, University of Münster and University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany; (J.S.)
| |
Collapse
|
7
|
Alshutaihi MS, Mazketly M, Tabbakh M, Akkash N, Bahro T, Alsaman MZB. Mimickers of autoimmune encephalitis: a literature review. J Int Med Res 2024; 52:3000605241248050. [PMID: 38775376 PMCID: PMC11140194 DOI: 10.1177/03000605241248050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/02/2024] [Indexed: 05/25/2024] Open
Abstract
Autoimmune encephalitis (AIE) is a rapid, progressive neurological disorder characterized by nervous system inflammation. While the Graus criteria are the best known criteria for AIE diagnosis, other differential diagnoses meeting the Graus criteria must be considered before management. This narrative review discusses the most common etiologies that resemble AIE. We suggest routine exclusion of mimickers meeting the Graus criteria before confirming an AIE diagnosis. We reviewed 28 studies including 356 patients. The main initial diagnosis was AIE, then paraneoplastic limbic encephalitis and anti-N-methyl-D-aspartate receptor encephalitis. Only 194 patients met the possible Graus criteria. The most frequent conditions among the total population were dementia, other neurodegenerative diseases, and psychiatric and functional neurological disorders. AIE is often misdiagnosed, leading to unnecessary treatment. Despite publication of the Graus criteria, medical cases mimicking this condition are being published. Many neurological diseases entering the differential diagnosis of AIE could be excluded through a detailed history, neurological examination, laboratory analysis, and other investigations, including cerebrospinal fluid and brain magnetic resonance imaging. However, some differential diagnoses complied with the possible Graus criteria, with some having concurrent antineuronal antibodies, which were considered true mimickers. AIE diagnosis suspicion is primarily clinical, but a definitive diagnosis requires various diagnostic tools.
Collapse
Affiliation(s)
- Mohamad Sami Alshutaihi
- Division of Neurology, Department of Internal Medicine, Aleppo University Hospital, Aleppo, Syria
| | - Muhammad Mazketly
- Department of Internal Medicine, Aleppo University Hospital, Aleppo, Syria
| | - Mohannad Tabbakh
- Department of Internal Medicine, Aleppo University Hospital, Aleppo, Syria
| | - Nour Akkash
- Division of Neurology, Department of Internal Medicine, Aleppo University Hospital, Aleppo, Syria
| | - Tuqa Bahro
- Division of Neurology, Department of Internal Medicine, Aleppo University Hospital, Aleppo, Syria
| | | |
Collapse
|
8
|
Hawkes C, Dale RC, Scher S, Cornish JL, Perez DL, Santoro JD, Fernandes S, Kozlowska K. Bridging the Divide: An Integrated Neurobio-Psycho-Social Approach to Treating Antibody Negative Inflammatory Encephalitis in a School-Aged Child. Harv Rev Psychiatry 2024; 32:101-116. [PMID: 38728570 DOI: 10.1097/hrp.0000000000000395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Affiliation(s)
- Clare Hawkes
- From Kids Neuroscience Centre (Dr. Dale), The Children's Hospital at Westmead (Drs. Dale, Hawkes, and Kozlowska), Westmead, AUS; Faculty of Medicine and Health, The Children's Hospital at Westmead Clinical School (Drs. Dale and Kozlowska), and Brain and Mind Centre (Dr. Dale), University of Sydney, Sydney, AUS; Harvard Medical School (Drs. Scher, Perez, and Fernandes); McLean Hospital, Belmont, MA (Drs. Scher and Fernandes); Specialty in Psychiatry, University of Sydney School of Medicine, Sydney, AUS (Drs. Scher and Kozlowska); School of Psychological Sciences and Centre for Emotional Health, Macquarie University (Dr. Cornish); Department of Neurology and Department of Psychiatry, Massachusetts General Hospital, Boston, MA (Dr. Perez); Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA (Dr. Santoro); Department of Neurology, Keck School of Medicine of the University of Southern California (Dr. Santoro); The Brain Dynamics Centre, The Westmead Institute for Medical Research, Westmead, AUS (Dr. Kozlowska)
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Roman SN, Sadaghiani MS, Diaz-Arias LA, Le Marechal M, Venkatesan A, Solnes LB, Probasco JC. Quantitative brain 18F-FDG PET/CT analysis in seronegative autoimmune encephalitis. Ann Clin Transl Neurol 2024; 11:1211-1223. [PMID: 38453690 DOI: 10.1002/acn3.52035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/09/2024] Open
Abstract
OBJECTIVE Brain 18F-FDG PET/CT is a useful diagnostic in evaluating patients with suspected autoimmune encephalitis (AE). Specific patterns of brain dysmetabolism have been reported in anti-NMDAR and anti-LGI1 AE, and the degree of dysmetabolism may correlate with clinical functional status.18FDG-PET/CT abnormalities have not yet been described in seronegative AE. METHODS We conducted a cross-sectional analysis of brain18FDG-PET/CT data in people with seronegative AE treated at the Johns Hopkins Hospital. Utilizing NeuroQ™ software, the Z-scores of 47 brain regions were calculated relative to healthy controls, then visually and statistically compared for probable and possible AE per clinical consensus diagnostic criteria to previous data from anti-NMDAR and anti-LGI1 cohorts. RESULTS Eight probable seronegative AE and nine possible seronegative AE were identified. The group only differed in frequency of abnormal brain MRI, which was seen in all of the probable seronegative AE patients. Both seronegative groups had similar overall patterns of brain dysmetabolism. A common pattern of frontal lobe hypometabolism and medial temporal lobe hypermetabolism was observed in patients with probable and possible seronegative AE, as well as anti-NMDAR and anti-LGI1 AE as part of their respective characteristic patterns of dysmetabolism. Four patients had multiple brain18FDG-PET/CT scans, with changes in number and severity of abnormal brain regions mirroring clinical status. CONCLUSIONS A18FDG-PET/CT pattern of frontal lobe hypometabolism and medial temporal lobe hypermetabolism could represent a common potential biomarker of AE, which along with additional clinical data may facilitate earlier diagnosis and treatment.
Collapse
Affiliation(s)
- Samantha N Roman
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Moe S Sadaghiani
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Luisa A Diaz-Arias
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Marion Le Marechal
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Arun Venkatesan
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Lilja B Solnes
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - John C Probasco
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
10
|
Han B, Dai Y, Peng J, Yuan T, Yin Q, Yang L. Study on clinical features and factors related to long-term outcomes of antibody-negative autoimmune encephalitis. Ann Clin Transl Neurol 2024; 11:1325-1337. [PMID: 38644648 DOI: 10.1002/acn3.52049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 04/23/2024] Open
Abstract
OBJECTIVE To delineate the clinical characteristics of antibody-negative autoimmune encephalitis (AE) and to investigate factors associated with long-term outcomes among antibody-negative AE. METHODS Patients diagnosed with antibody-negative AE were recruited from January 2016 to December 2022 at the Second Xiangya Hospital of Central South University. The study assessed the long-term outcomes of antibody-negative AE using the modified Rankin scale (mRS) and the Clinical Assessment Scale in Autoimmune Encephalitis (CASE). Predictors influencing long-term outcomes were subsequently analyzed. External validation of RAPID scores (refractory status epilepticus [RSE], age of onset ≥60 years, ANPRA [antibody-negative probable autoimmune encephalitis], infratentorial involvement, and delay of immunotherapy ≥1 month) was performed. RESULTS In total, 100 (47 females and 53 males) antibody-negative AE patients were enrolled in this study, with approximately 49 (49%) experiencing unfavorable long-term outcomes (mRS scores ≥3). Antibody-negative AE was subcategorized into ANPRA, autoimmune limbic encephalitis (LE), and acute disseminated encephalomyelitis (ADEM). Psychiatric symptoms were prevalent in LE and ANPRA subtypes, while weakness and gait instability/dystonia were predominant in the ADEM subtype. Higher peak CASE scores (odds ratio [OR] 1.846, 95% confidence interval [CI]: 1.163-2.930, p = 0.009) and initiating immunotherapy within 30 days (OR 0.210, 95% CI: 0.046-0.948, p = 0.042) were correlated with long-term outcomes. Receiver operating characteristic (ROC) analysis returned that the RAPID scores cutoff of 1.5 best discriminated the group with poor long-term outcomes (sensitivity 85.7%, specificity 56.9%). INTERPRETATION The ANPRA subtype exhibited poorer long-term outcomes compared to LE and ADEM subtypes, and early immunotherapy was crucial for improving long-term outcomes in antibody-negative AE. The use of RAPID scoring could aid in guiding clinical decision making.
Collapse
Affiliation(s)
- Binhong Han
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuwei Dai
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jian Peng
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tianxiang Yuan
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qing Yin
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Yang
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
11
|
Sanvito F, Pichiecchio A, Paoletti M, Rebella G, Resaz M, Benedetti L, Massa F, Morbelli S, Caverzasi E, Asteggiano C, Businaro P, Masciocchi S, Castellan L, Franciotta D, Gastaldi M, Roccatagliata L. Autoimmune encephalitis: what the radiologist needs to know. Neuroradiology 2024; 66:653-675. [PMID: 38507081 PMCID: PMC11031487 DOI: 10.1007/s00234-024-03318-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024]
Abstract
Autoimmune encephalitis is a relatively novel nosological entity characterized by an immune-mediated damage of the central nervous system. While originally described as a paraneoplastic inflammatory phenomenon affecting limbic structures, numerous instances of non-paraneoplastic pathogenesis, as well as extra-limbic involvement, have been characterized. Given the wide spectrum of insidious clinical presentations ranging from cognitive impairment to psychiatric symptoms or seizures, it is crucial to raise awareness about this disease category. In fact, an early diagnosis can be dramatically beneficial for the prognosis both to achieve an early therapeutic intervention and to detect a potential underlying malignancy. In this scenario, the radiologist can be the first to pose the hypothesis of autoimmune encephalitis and refer the patient to a comprehensive diagnostic work-up - including clinical, serological, and neurophysiological assessments.In this article, we illustrate the main radiological characteristics of autoimmune encephalitis and its subtypes, including the typical limbic presentation, the features of extra-limbic involvement, and also peculiar imaging findings. In addition, we review the most relevant alternative diagnoses that should be considered, ranging from other encephalitides to neoplasms, vascular conditions, and post-seizure alterations. Finally, we discuss the most appropriate imaging diagnostic work-up, also proposing a suggested MRI protocol.
Collapse
Affiliation(s)
- Francesco Sanvito
- Unit of Radiology, Department of Clinical, Surgical, Diagnostic, and Paediatric Sciences, University of Pavia, Viale Camillo Golgi, 19, 27100, Pavia, Italy.
- UCLA Brain Tumor Imaging Laboratory (BTIL), Center for Computer Vision and Imaging Biomarkers, University of California Los Angeles, Los Angeles, CA, USA.
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
| | - Anna Pichiecchio
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Advanced Imaging and Artificial Intelligence Center, Department of Neuroradiology, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Matteo Paoletti
- Advanced Imaging and Artificial Intelligence Center, Department of Neuroradiology, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Giacomo Rebella
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - Martina Resaz
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - Luana Benedetti
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - Federico Massa
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Largo Daneo 3, 16132, Genoa, Italy
| | - Silvia Morbelli
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Via Antonio Pastore 1, 16132, Genoa, Italy
| | - Eduardo Caverzasi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Advanced Imaging and Artificial Intelligence Center, Department of Neuroradiology, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Carlo Asteggiano
- Advanced Imaging and Artificial Intelligence Center, Department of Neuroradiology, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Pietro Businaro
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Stefano Masciocchi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Lucio Castellan
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - Diego Franciotta
- Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Matteo Gastaldi
- Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy
| | - Luca Roccatagliata
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Via Antonio Pastore 1, 16132, Genoa, Italy
| |
Collapse
|
12
|
Sachs N, Zohar-Dayan E, Ben Zeev B, Gilboa T, Kurd M, Latzer IT, Meirson H, Krause I, Dizitzer Y, Cohen EG. Autoimmune encephalitis in Israeli children - A retrospective nationwide study. Eur J Paediatr Neurol 2024; 50:1-5. [PMID: 38518418 DOI: 10.1016/j.ejpn.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/08/2024] [Accepted: 03/02/2024] [Indexed: 03/24/2024]
Abstract
Immune-mediated or autoimmune encephalitis (AE) is a relatively new, rare and elusive form of encephalitis in children. We retrospectively collected seropositive children (0-18 years old) with well characterized antibodies through 3 reference laboratories in Israel. Clinical symptoms, MRI and EEG findings and treatment courses were described. A total of 16 patients were included in the study, with 10 females. Anti NMDA encephalitis was most common followed by anti HU and anti mGLuR1. Psychiatric symptoms, abnormal movements, seizures and behavioral changes were the most common presentation. Pathological MRI and EEG findings were described in 37% and 56% of children, respectively. Treatment with corticosteroids, Intravenous immunoglobulins (IVIG) was first line in most children. Following inadequate response children were treated with plasmapheresis and/or rituximab. Two patients relapsed following both first and second line protocols. In terms of long term prognosis, 9 children (56%) had one or more residual behavioral, psychiatric or neurologic findings. Three children required hospitalization for rehabilitation. AE remains a rare diagnosis with variable presenting symptoms, requiring a high index of suspicion. Consensus recommended treatment is generally effective in the pediatric population. Female gender was associated with a higher chance of severe disease. Larger cohorts would be needed to identify prognostic factors in the pediatric population.
Collapse
Affiliation(s)
- Nimrod Sachs
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Efrat Zohar-Dayan
- Pediatric Neurology Unit, Safra Pediatric Hospital, Sheba Medical Center, Ramat-Gan, Israel
| | - Bruria Ben Zeev
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Unit, Safra Pediatric Hospital, Sheba Medical Center, Ramat-Gan, Israel
| | - Tal Gilboa
- Pediatric Neurology Unit, Hadassah Medical Center, Jerusalem, Israel; School of Medicine, The Hebrew University of Jerusalem, Israel
| | - Mohammad Kurd
- Pediatric Neurology Unit, Hadassah Medical Center, Jerusalem, Israel
| | - Itay Tokatly Latzer
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel-Aviv Medical Center, Israel
| | - Hadas Meirson
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel-Aviv Medical Center, Israel
| | - Irit Krause
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yotam Dizitzer
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Esther Ganelin Cohen
- The Neuro-immunological Clinic, The Neurological Institute, Schneider Children's Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
13
|
Ouyang S, Wu X, Zhan Q, Wu F, Tan H, Duan W, Zeng Q, Gu W, Lu W, Yin W. Unique association of anti-GABA A receptor encephalitis and myasthenia gravis in a patient with type A thymoma. Neurol Sci 2024; 45:2203-2209. [PMID: 38051411 DOI: 10.1007/s10072-023-07239-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/28/2023] [Indexed: 12/07/2023]
Abstract
Association between anti-GABAAR encephalitis and myasthenia gravis is extremely rare with few reported cases. Herein, we report a case of a female patient diagnosed with anti-GABAAR encephalitis and thymoma at the first admission. She was administered glucocorticoids for long-term immunotherapy, and thymectomy with biopsy demonstrated a type A thymoma. After 4 months, the symptoms of encephalitis were relieved, but she then developed post-thymectomy myasthenia gravis with anti-AChR and anti-titin dual positivity. Antibodies to connective tissue (anti-ANA, anti-PCNA) and those characteristics of paraneoplastic syndrome (anti-Ma2/Ta) were also positive. She received oral glucocorticoids and tacrolimus as immunosuppressive therapy, and myasthenic symptoms were stable during a 2-year follow-up. Our case revealed that anti-GABAAR encephalitis and myasthenia gravis can appear in patient with type A thymoma at different periods, which alerts physicians to take long-term follow-up for anti-GABAAR encephalitis with thymoma, even after thymectomy. Concurrent positivity for more than one antibody after thymectomy is rarely observed, and their contribution to the clinical course and treatment decision remains to be further investigated.
Collapse
Affiliation(s)
- Song Ouyang
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, People's Republic of China
- The "Double-First Class" Application Characteristic Discipline of Hunan Province (Clinical Medicine), Changsha Medical University, Changsha, Hunan, People's Republic of China
| | - Xiaomei Wu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Qiong Zhan
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Feng Wu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Hong Tan
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, People's Republic of China
| | - Weiwei Duan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Qiuming Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Wenping Gu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Wei Lu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Weifan Yin
- The "Double-First Class" Application Characteristic Discipline of Hunan Province (Clinical Medicine), Changsha Medical University, Changsha, Hunan, People's Republic of China.
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.
| |
Collapse
|
14
|
Tanemoto M, Suzuki S, Yokokawa K, Saito T, Iwahara N, Tsuda R, Watanabe O, Takahashi Y, Yoneda M, Hisahara S. [Clinical characteristics of seizure-predominant autoimmune encephalitis and utility of anti-neuronal antibody scores for early treatment]. Rinsho Shinkeigaku 2024; 64:272-279. [PMID: 38508734 DOI: 10.5692/clinicalneurol.cn-001911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
We analyzed 20 patients diagnosed with autoimmune neurological diseases with seizure predominance. In these patients, we examined the usefulness of Antibody Prevalence in Epilepsy and Encephalopathy (APE2) score and Antibodies Contributing to Focal Epilepsy Signs and Symptoms (ACES) score in autoimmune encephalitis (AE) for facilitating early treatment. APE2 score was positive in 19 of 20 patients. ACES score was positive in 15 of 20 patients, and 4 of 5 of the patients with negative ACES score did not have AE. Comprehensive assessment including the use of the above scores is desirable in the early stage of AE.
Collapse
Affiliation(s)
- Masanobu Tanemoto
- Department of Neurology, Sapporo Medical University, School of Medicine
| | | | - Kazuki Yokokawa
- Department of Neurology, Sapporo Medical University, School of Medicine
| | - Taro Saito
- Department of Neurology, Sapporo Medical University, School of Medicine
| | - Naotoshi Iwahara
- Department of Neurology, Sapporo Medical University, School of Medicine
| | - Reiko Tsuda
- Department of Neurology, Sapporo Medical University, School of Medicine
| | | | - Yukitoshi Takahashi
- Department of Clinical Research, NHO, National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorders
| | - Makoto Yoneda
- Faculty of Nursing and Social Welfare Sciences, Fukui Prefectural University
| | - Shin Hisahara
- Department of Neurology, Sapporo Medical University, School of Medicine
| |
Collapse
|
15
|
Legouy C, Cervantes A, Sonneville R, Thakur KT. Autoimmune and inflammatory neurological disorders in the intensive care unit. Curr Opin Crit Care 2024; 30:142-150. [PMID: 38441114 DOI: 10.1097/mcc.0000000000001139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
PURPOSE OF REVIEW The present review summarizes the diagnostic approach to autoimmune encephalitis (AE) in the intensive care unit (ICU) and provides practical guidance on therapeutic management. RECENT FINDINGS Autoimmune encephalitis represents a group of immune-mediated brain diseases associated with antibodies that are pathogenic against central nervous system proteins. Recent findings suggests that the diagnosis of AE requires a multidisciplinary approach including appropriate recognition of common clinical syndromes, brain imaging and electroencephalography to confirm focal pathology, and cerebrospinal fluid and serum tests to rule out common brain infections, and to detect autoantibodies. ICU admission may be necessary at AE onset because of altered mental status, refractory seizures, and/or dysautonomia. Early management in ICU includes prompt initiation of immunotherapy, detection and treatment of seizures, and supportive care with neuromonitoring. In parallel, screening for neoplasm should be systematically performed. Despite severe presentation, epidemiological studies suggest that functional recovery is likely under appropriate therapy, even after prolonged ICU stays. CONCLUSION AE and related disorders are increasingly recognized in the ICU population. Critical care physicians should be aware of these conditions and consider them early in the differential diagnosis of patients presenting with unexplained encephalopathy. A multidisciplinary approach is mandatory for diagnosis, ICU management, specific therapy, and prognostication.
Collapse
Affiliation(s)
- Camille Legouy
- GHU Paris Psychiatrie & Neurosciences, Department of Intensive Care Medicine, Paris, France
| | - Anna Cervantes
- Divisions of Neurocritical Care and Neuroinfectious Disease, Boston Medical Center, Boston, Massachusetts, USA
| | - Romain Sonneville
- Université Paris Cité, IAME, INSERM UMR1137
- AP-HP, Hôpital Bichat - Claude Bernard, Department of Intensive Care Medicine, Paris, France
| | - Kiran T Thakur
- Department of Neurology, Columbia University Irving Medical Center-New York Presbyterian Hospital, New York, New York, USA
| |
Collapse
|
16
|
Zhao H, Song L, Gao S, Wu L, Huang D. Autoimmune glial fibrillary acidic protein astrocytopathy coexisting with multiple endocrine neoplasia: a case report. Acta Neurol Belg 2024; 124:715-718. [PMID: 37979124 DOI: 10.1007/s13760-023-02416-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Affiliation(s)
- He Zhao
- Department of Neurology, First Medical Center of Chinese, PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Lihong Song
- Department of Neurology, First Medical Center of Chinese, PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
- Department of Medicine, Lulong County Hospital, Qinhuangdao, 066400, Hebei, China
| | - Sai Gao
- Department of Neurology, First Medical Center of Chinese, PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China
| | - Lei Wu
- Department of Neurology, First Medical Center of Chinese, PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
| | - Dehui Huang
- Department of Neurology, First Medical Center of Chinese, PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
| |
Collapse
|
17
|
Zheng F, Yin P, Yang L, Wang Y, Hao W, Hao Q, Chen X, Hong N. MRI-Based Machine Learning Fusion Models to Distinguish Encephalitis and Gliomas. JOURNAL OF IMAGING INFORMATICS IN MEDICINE 2024; 37:653-665. [PMID: 38343248 PMCID: PMC11031538 DOI: 10.1007/s10278-023-00957-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 04/20/2024]
Abstract
This paper aims to compare the performance of the classical machine learning (CML) model and the deep learning (DL) model, and to assess the effectiveness of utilizing fusion radiomics from both CML and DL in distinguishing encephalitis from glioma in atypical cases. We analysed the axial FLAIR images of preoperative MRI in 116 patients pathologically confirmed as gliomas and clinically diagnosed with encephalitis. The 3 CML models (logistic regression (LR), support vector machine (SVM) and multi-layer perceptron (MLP)), 3 DL models (DenseNet 121, ResNet 50 and ResNet 18) and a deep learning radiomic (DLR) model were established, respectively. The area under the receiver operating curve (AUC) and sensitivity, specificity, accuracy, negative predictive value (NPV) and positive predictive value (PPV) were calculated for the training and validation sets. In addition, a deep learning radiomic nomogram (DLRN) and a web calculator were designed as a tool to aid clinical decision-making. The best DL model (ResNet50) consistently outperformed the best CML model (LR). The DLR model had the best predictive performance, with AUC, sensitivity, specificity, accuracy, NPV and PPV of 0.879, 0.929, 0.800, 0.875, 0.867 and 0.889 in the validation sets, respectively. Calibration curve of DLR model shows good agreement between prediction and observation, and the decision curve analysis (DCA) indicated that the DLR model had higher overall net benefit than the other two models (ResNet50 and LR). Meanwhile, the DLRN and web calculator can provide dynamic assessments. Machine learning (ML) models have the potential to non-invasively differentiate between encephalitis and glioma in atypical cases. Furthermore, combining DL and CML techniques could enhance the performance of the ML models.
Collapse
Affiliation(s)
- Fei Zheng
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China
| | - Ping Yin
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China
| | - Li Yang
- Imaging Department, Shanxi Province, Shanxi Provincial People's Hospital, Shanxi Medical University, No. 359 Heping North Road, Jiancaoping District, Taiyuan, People's Republic of China
| | - Yujian Wang
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China
| | - Wenhan Hao
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China
| | - Qi Hao
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China
| | - Xuzhu Chen
- Department of Radiology, Fengtai District, Beijing Tiantan Hospital, Capital Medical University, No.119 South Fourth Ring West Road, Beijing, People's Republic of China.
| | - Nan Hong
- Department of Radiology, Peking University People's Hospital, No. 11 Xizhimen South Street, Xicheng District, Beijing, People's Republic of China.
| |
Collapse
|
18
|
Yu PC, Kuo CM, Chen IC. Tau and delirium superimposed on dementia: A case report. SAGE Open Med Case Rep 2024; 12:2050313X241243148. [PMID: 38559407 PMCID: PMC10981243 DOI: 10.1177/2050313x241243148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
We present a case involving a 60-year-old man with subacute delirium characterized by challenging attention shifts and obstinate behavior, contrasting with his usual mild-mannered personality. The patient developed pneumonia and a urinary tract infection following the onset of subacute delirium. Despite exhaustive investigations, the cause remained elusive until cerebrospinal fluid analysis revealed Tau positivity. Our overview suggests neurodegenerative diseases as the primary cause, rather than infectious or autoimmune factors. The case underscores a significant association between Tau and delirium superimposed on dementia, offering guidance to clinicians managing such patients.
Collapse
Affiliation(s)
- Po-Chung Yu
- Department of Psychiatry, Taichung Veterans General Hospital, Taichung City, Taiwan
| | - Ching-Min Kuo
- Department of Psychiatry, Taichung Veterans General Hospital, Taichung City, Taiwan
| | - I-Chun Chen
- Department of Psychiatry, Taichung Veterans General Hospital, Taichung City, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung City, Taiwan
| |
Collapse
|
19
|
Shang H, Shen X, Yu X, Zhang J, Jia Y, Gao F. B-cell targeted therapies in autoimmune encephalitis: mechanisms, clinical applications, and therapeutic potential. Front Immunol 2024; 15:1368275. [PMID: 38562943 PMCID: PMC10982343 DOI: 10.3389/fimmu.2024.1368275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
Autoimmune encephalitis (AE) broadly refers to inflammation of the brain parenchyma mediated by autoimmune mechanisms. In most patients with AE, autoantibodies against neuronal cell surface antigens are produced by B-cells and induce neuronal dysfunction through various mechanisms, ultimately leading to disease progression. In recent years, B-cell targeted therapies, including monoclonal antibody (mAb) therapy and chimeric antigen receptor T-cell (CAR-T) therapy, have been widely used in autoimmune diseases. These therapies decrease autoantibody levels in patients and have shown favorable results. This review summarizes the mechanisms underlying these two B-cell targeted therapies and discusses their clinical applications and therapeutic potential in AE. Our research provides clinicians with more treatment options for AE patients whose conventional treatments are not effective.
Collapse
Affiliation(s)
- Haodong Shang
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| | - Xinru Shen
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaoxiao Yu
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| | - Jing Zhang
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| | - Yongliang Jia
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| | - Feng Gao
- Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- BGI College, Zhengzhou University, Zhengzhou, Henan, China
| |
Collapse
|
20
|
Takahashi N, Igari R, Iseki C, Kawahara H, Suzuki D, Suzuki Y, Sato H, Koyama S, Kobayashi M, Ohta Y. Paraneoplastic Cerebellar Degeneration Accompanied by Seropositivity for Anti-GAD65, Anti-SOX-1 and Anti-VGCC Antibodies Due to Small-cell Lung Cancer. Intern Med 2024; 63:857-860. [PMID: 37587040 PMCID: PMC11008997 DOI: 10.2169/internalmedicine.0738-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 06/22/2023] [Indexed: 08/18/2023] Open
Abstract
Paraneoplastic cerebellar degeneration (PCD) is a paraneoplastic neurological syndrome that is rarely accompanied by seropositivity with a combination of multiple antibodies. We herein report a 50-year-old man with PCD accompanied by small-cell lung cancer (SCLC). This patient was seropositive for anti-glutamic acid decarboxylase 65, anti-SRY-related HMG-box gene 1 and anti-voltage-gated calcium channel antibodies. After chemoradiation therapy without immunotherapy, cerebellar ataxia of the trunk and limbs markedly improved, along with a notable amelioration of SCLC. This case suggests that tumor therapy should be started immediately and that a panel of anti-neuronal antibodies should be evaluated when PCD with SCLC is suspected.
Collapse
Affiliation(s)
- Naomi Takahashi
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Ryosuke Igari
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Chifumi Iseki
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Hikaru Kawahara
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Daisuke Suzuki
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Yuya Suzuki
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Hiroyasu Sato
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Shingo Koyama
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| | - Maki Kobayashi
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Japan
| | - Yasuyuki Ohta
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Japan
| |
Collapse
|
21
|
Dai Y, Zheng Y, Zhu J, Ding J, Qiu K, Tang B. DPPX antibody-mediated autoimmune encephalitis:the first case with breast cancer and review of the literature. Heliyon 2024; 10:e27413. [PMID: 38449607 PMCID: PMC10915555 DOI: 10.1016/j.heliyon.2024.e27413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024] Open
Abstract
Dipeptidyl-peptidase-like protein 6 (DPPX) antibody-mediated encephalitis is a rare type of autoimmune encephalitis (AE), which mainly manifests as diarrhea accompanied by weight loss, cognitive decline, epileptic seizures, and even psychiatric symptoms. Remarkably, it is also reported to be associated with tumors, predominantly B-cell lymphoma. Overall, the AE remains uncharacterized clinically and its long-term prognosis remains elusive. Herein, we report the first case of DPPX antibody-mediated AE secondary to breast cancer. Importantly, it substantially improves after aggressive immunotherapy. Our case highlights DPPX antibody-mediated AE as a paraneoplastic syndrome and discusses the pearls in its diagnosis and management.
Collapse
Affiliation(s)
- Yijie Dai
- Zhejiang Chinese Medical University, China
| | - Yang Zheng
- The First Affiliated Hospital of Zhejiang Chinese Medical University, China
| | | | - Jiao Ding
- Third People's Hospital of Hangzhou, China
| | - Kefan Qiu
- Zhejiang Chinese Medical University, China
| | - Bo Tang
- Hangzhou First People's Hospital, China
| |
Collapse
|
22
|
Muñoz-Lopetegi A, Guasp M, Prades L, Martínez-Hernández E, Rosa-Justícia M, Patricio V, Armangué T, Rami L, Borràs R, Castro-Fornieles J, Compte A, Gaig C, Santamaria J, Dalmau J. Neurological, psychiatric, and sleep investigations after treatment of anti-leucine-rich glioma-inactivated protein 1 (LGI1) encephalitis in Spain: a prospective cohort study. Lancet Neurol 2024; 23:256-266. [PMID: 38365378 DOI: 10.1016/s1474-4422(23)00463-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 02/18/2024]
Abstract
BACKGROUND Anti-leucine-rich glioma-inactivated protein 1 (LGI1) encephalitis is an autoimmune disorder that can be treated with immunotherapy, but the symptoms that remain after treatment have not been well described. We aimed to characterise the clinical features of patients with anti-LGI1 encephalitis for 1 year starting within the first year after initial immunotherapy. METHODS For this prospective cohort study, we recruited patients with anti-LGI1 encephalitis as soon as possible after they had received conventional immunotherapy for initial symptoms; patients were recruited from 21 hospitals in Spain. Patients were excluded if they had an interval of more than 1 year since initial immunotherapy, had pre-existing neurodegenerative or psychiatric disorders, or were unable to travel to Hospital Clínic de Barcelona (Barcelona, Spain). Patients visited Hospital Clínic de Barcelona on three occasions-the first at study entry (visit 1), the second 6 months later (visit 2), and the third 12 months after the initial visit (visit 3). They underwent neuropsychiatric and videopolysomnography assessments at each visit. Healthy participants who were matched for age and sex and recruited from Hospital Clínic de Barcelona underwent the same investigations at study entry and at 12 months. Cross-sectional comparisons of clinical features between groups were done with conditional logistic regression, and binary logistic regression was used to assess associations between cognitive outcomes at 12 months and clinical features before initial immunotherapy and at study entry. FINDINGS Between May 1, 2019, and Sept 30, 2022, 42 participants agreed to be included in this study. 24 (57%) participants had anti-LGI1 encephalitis (mean age 63 years [SD 12]; 13 [54%] were female and 11 [46%] were male) and 18 (43%) were healthy individuals (mean age 62 years [10]; 11 [61%] were female and seven [39%] were male). At visit 1 (median 88 days [IQR 67-155] from initiation of immunotherapy), all 24 patients had one or more symptoms; 20 (83%) patients had cognitive deficits, 20 (83%) had psychiatric symptoms, 14 (58%) had insomnia, 12 (50%) had rapid eye movement (REM)-sleep behaviour disorder, nine (38%) had faciobrachial dystonic seizures, and seven (29%) had focal onset seizures. Faciobrachial dystonic seizures were unnoticed in four (17%) of 24 patients and focal onset seizures were unnoticed in five (21%) patients. At visit 1, videopolysomnography showed that 19 (79%) patients, but no healthy participants, had disrupted sleep structure (p=0·013); 15 (63%) patients and four (22%) healthy participants had excessive fragmentary myoclonus (p=0·039), and nine (38%) patients, but no healthy participants, had myokymic discharges (p=0·0051). These clinical and videopolysomnographic features led to additional immunotherapy in 15 (63%) of 24 patients, which resulted in improvement of these features in all 15 individuals. However, at visit 3, 13 (65%) of 20 patients continued to have cognitive deficits. Persistent cognitive deficits at visit 3 were associated with no use of rituximab before visit 1 (odds ratio [OR] 4·0, 95% CI 1·5-10·7; p=0·0015), REM sleep without atonia at visit 1 (2·2, 1·2-4·2; p=0·043), and presence of LGI1 antibodies in serum at visit 1 (11·0, 1·1-106·4; p=0·038). INTERPRETATION Unsuspected but ongoing clinical and videopolysomnography alterations are common in patients with anti-LGI1 encephalitis during the first year or more after initial immunotherapy. Recognising these alterations is important as they are treatable, can be used as outcome measures in clinical trials, and might influence cognitive outcome. FUNDING Fundació La Caixa.
Collapse
Affiliation(s)
| | - Mar Guasp
- Neurology Department, University of Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomédica en Red, Enfermedades Raras, Madrid, Spain
| | - Laia Prades
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Eugenia Martínez-Hernández
- Neurology Department, University of Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | | | - Víctor Patricio
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Thaís Armangué
- Institute of Neuroscience, Hospital Clínic de Barcelona and Pediatric Neuroimmunology Unit, Department of Neurology, Sant Joan de Déu Children Hospital, University of Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Lorena Rami
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Roger Borràs
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, University of Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomédica en Red, Salud Mental, Madrid, Spain
| | - Albert Compte
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Carles Gaig
- Neurology Department, University of Barcelona, Barcelona, Spain
| | - Joan Santamaria
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Josep Dalmau
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain; Centro de Investigación Biomédica en Red, Enfermedades Raras, Madrid, Spain; Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Catalan Institution for Research and Advanced Studies, Barcelona, Spain.
| |
Collapse
|
23
|
Bhasin A, Haftka-George A. Diagnostic Challenges and Treatment Approach to Seronegative Autoimmune Encephalitis. Cureus 2024; 16:e56844. [PMID: 38659526 PMCID: PMC11039407 DOI: 10.7759/cureus.56844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2024] [Indexed: 04/26/2024] Open
Abstract
Seronegative autoimmune encephalitis (AE) is a rare, immune-mediated inflammatory syndrome that presents with a wide spectrum of neuropsychiatric symptoms, such as cognitive impairment, seizures, psychosis, focal neurological defects, and altered consciousness. This disease process presents with no identifiable autoimmune antibodies, which leads to uncertain diagnosis, delayed treatment, and prolonged hospital admissions. Early diagnosis and prompt treatment of AE should not be delayed, as early recognition and treatment leads to improved outcomes and disease reversibility for these patients. In this study, we present a case report of a 77-year-old male who presented with acutely altered mental status. This patient underwent an extensive workup and demonstrated no signs of clinical improvement throughout a prolonged hospital admission. The diagnostic challenges and treatment obstacles encountered during our care of this patient are described in this case report, along with recommendations for early diagnosis and prompt treatment for patients with suspected seronegative AE.
Collapse
Affiliation(s)
- Amman Bhasin
- Internal Medicine, Thomas Jefferson University Hospital, Philadelphia, USA
| | | |
Collapse
|
24
|
Shim YM, Kim SI, Lim SD, Lee K, Kim EE, Won JK, Park SH. An Autopsy-proven Case-based Review of Autoimmune Encephalitis. Exp Neurobiol 2024; 33:1-17. [PMID: 38471800 PMCID: PMC10938074 DOI: 10.5607/en23036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Autoimmune encephalitis (AIE) is a type of immunoreactive encephalitic disorder and is recognized as the most prevalent noninfectious encephalitis. Nevertheless, the rarity of definitive AIE diagnosis through biopsy or autopsy represents a significant hurdle to understanding and managing the disease. In this article, we present the pathological findings of AIE and review the literature based on a distinct case of AIE presenting as CD8+ T-lymphocyte predominant encephalitis. We describe the clinical progression, diagnostic imaging, laboratory data, and autopsy findings of an 80-year-old deceased male patient. The patient was diagnosed with pulmonary tuberculosis 6 months before death and received appropriate medications. A week before admission to the hospital, the patient manifested symptoms such as a tendency to sleep, decreased appetite, and confusion. Although the patient temporally improved with medication including correction of hyponatremia, the patient progressed rapidly and died in 6 weeks. The brain tissue revealed lymphocytic infiltration in the gray and white matter, leptomeninges, and perivascular infiltration with a predominance of CD8+ T lymphocytes, suggesting a case of AIE. There was no detectable evidence of viral infection or underlying neoplasm. The autopsy revealed that this patient also had Alzheimer's disease, atherosclerosis, arteriolosclerosis, and aging-related tau astrogliopathy. This report emphasizes the pivotal role of pathological examination in the diagnosis of AIE, especially when serological autoantibody testing is not available or when a patient is suspected of having multiple diseases.
Collapse
Affiliation(s)
- Yu-Mi Shim
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Seong-Ik Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - So Dug Lim
- Department of Pathology, KonKuk University School of Medicine, Seoul 05029, Korea
| | - Kwanghoon Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Eric Eunshik Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jae Kyung Won
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea
- Institute of Neuroscience, Seoul National University College of Medicine, Seoul 03080, Korea
| |
Collapse
|
25
|
Ouyang S, Tang Z, Duan W, Tang S, Zeng Q, Gu W, Li M, Tan H, Hu J, Yin W. Mapping the global research landscape and trends of autoimmune encephalitis: A bibliometric analysis. Heliyon 2024; 10:e26653. [PMID: 38434060 PMCID: PMC10906412 DOI: 10.1016/j.heliyon.2024.e26653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 01/22/2024] [Accepted: 02/16/2024] [Indexed: 03/05/2024] Open
Abstract
Background Autoimmune encephalitis (AE) is a neuroautoimmune disease featured by the presence of antibodies targeting neuronal surface, synaptic, or intracellular antigens. An increasing number of articles on its clinical manifestations, treatments, and prognosis have appeared in recent years. The objectives of this study were to summarize this growing body of literature and provide an overview of hotspots and trends in AE research using bibliometric analysis. Methods We retrieved AE-related articles published between 1999 and 2022 from the Web of Science Core Collection. Using bibliometric websites and software, we analyzed the data of AE research, including details about countries, institutions, authors, references, journals, and keywords. Results We analyzed 3348 articles, with an average of 32.83 citations per article and an H-index of 141. The USA (1091, 32.587%), China (531, 15.860%), Germany (447, 13.351%), England (266, 7.945%), and Japan (213, 6.362%) had the greatest numbers of publications. The top five institutions by numbers of publications were Oxford (143, 4.271%), the Udice French Research Universities (135, 4.032%), the University of Pennsylvania (135, 4.032%), l'Institut National de la Sante de la Recherche Medicale Inserm (113, 3.375%), and the University of Barcelona (110, 3.286%). The most productive authors were J. Dalmau (98, 2.927%), A. Vincent (65, 2.479%), H. Pruess (64, 1.912%), C. G. Bien (43, 1.284%), and F. Graus (43, 1.284%). "autoimmune encephalitis" was the most frequently used keyword (430), followed by "antibodies" (420), "NMDA receptor encephalitis" (383), and "limbic encephalitis" (368). In recent years, research hotspots have focused on the diagnosis and immunotherapy of NMDAR encephalitis and on limbic encephalitis. Conclusion Developed Western countries have made significant contributions to this field. China has shown a steady increase in the number of publications in recent years, but the quality and influence of these articles warrant efforts at improvement. Future directions in AE research lie in two key areas: (i) the clinical manifestations, prevalence, and prognosis of AE (enabled by advances in diagnosis); and (ii) the efficacy and safety of targeted, individualized immunotherapy.
Collapse
Affiliation(s)
- Song Ouyang
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, PR China
- The “Double-First Class” Application Characteristic Discipline of Hunan Province (Clinical Medicine), Changsha Medical University, Changsha, Hunan, PR China
| | - Zhenchu Tang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Weiwei Duan
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Sizhi Tang
- Department of Neurology, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, PR China
| | - Qiuming Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Wenping Gu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Miao Li
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, PR China
| | - Hong Tan
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, PR China
| | - Jiangying Hu
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, PR China
| | - Weifan Yin
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| |
Collapse
|
26
|
Hahn C, Budhram A, Alikhani K, AlOhaly N, Beecher G, Blevins G, Brooks J, Carruthers R, Comtois J, Cowan J, de Robles P, Hébert J, Kapadia RK, Lapointe S, Mackie A, Mason W, McLane B, Muccilli A, Poliakov I, Smyth P, Williams KG, Uy C, McCombe JA. Canadian Consensus Guidelines for the Diagnosis and Treatment of Autoimmune Encephalitis in Adults. Can J Neurol Sci 2024:1-21. [PMID: 38312020 DOI: 10.1017/cjn.2024.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Autoimmune encephalitis is increasingly recognized as a neurologic cause of acute mental status changes with similar prevalence to infectious encephalitis. Despite rising awareness, approaches to diagnosis remain inconsistent and evidence for optimal treatment is limited. The following Canadian guidelines represent a consensus and evidence (where available) based approach to both the diagnosis and treatment of adult patients with autoimmune encephalitis. The guidelines were developed using a modified RAND process and included input from specialists in autoimmune neurology, neuropsychiatry and infectious diseases. These guidelines are targeted at front line clinicians and were created to provide a pragmatic and practical approach to managing such patients in the acute setting.
Collapse
Affiliation(s)
- Christopher Hahn
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Adrian Budhram
- Clinical Neurological Sciences, London Health Sciences Centre, London, ON, Canada
- Department of Pathology and Laboratory Medicine, Western University, London Health Sciences Centre, London, ON, Canada
| | - Katayoun Alikhani
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Nasser AlOhaly
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Grayson Beecher
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | - Gregg Blevins
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | - John Brooks
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Robert Carruthers
- Division of Neurology, University of British Columbia, Vancouver, BC, Canada
| | - Jacynthe Comtois
- Neurosciences, Universite de Montreal Faculte de Medecine, Montreal, QC, Canada
| | - Juthaporn Cowan
- Division of Infectious Diseases, Department of Medicine Ottawa Hospital, Ottawa, ON, Canada
| | - Paula de Robles
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Julien Hébert
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Ronak K Kapadia
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Sarah Lapointe
- Neurosciences, Universite de Montreal Faculte de Medecine, Montreal, QC, Canada
| | - Aaron Mackie
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Warren Mason
- Division of Neurology, University of Toronto, Toronto, ON, Canada
| | - Brienne McLane
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | | | - Ilia Poliakov
- Division of Neurology, University of Saskatchewan College of Medicine, Saskatoon, SK, Canada
| | - Penelope Smyth
- Division of Neurology, University of Alberta, Edmonton, AB, Canada
| | | | - Christopher Uy
- Division of Neurology, University of British Columbia, Vancouver, BC, Canada
| | | |
Collapse
|
27
|
Graos CB, Montalvan VM, Torres P, Coboj C, Geldres FS. Clinical Characteristics and Neuroimaging Correlations in Autoimmune Encephalitis: A Report of Two Cases. Cureus 2024; 16:e54257. [PMID: 38496171 PMCID: PMC10944335 DOI: 10.7759/cureus.54257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 03/19/2024] Open
Abstract
Autoimmune encephalitis is an infrequent pathological occurrence documented within our local context. When clinical suspicion arises, employing electroencephalogram and brain magnetic resonance imaging (MRI) proves valuable. However, for conclusive diagnosis confirmation, lumbar puncture for cerebrospinal fluid (CSF) analysis is indispensable. Managing this condition involves a combination of immunosuppression and, when necessary, tumor resection. We document the initial cases reported in our city, featuring two young patients without significant pre-existing conditions. Patients initially displayed behavioral alterations progressing to altered consciousness, febrile peaks, and challenging epileptic status, requiring intensive care and mechanical ventilation. The diagnosis was made based on MRI and anti-N-methyl-D-aspartate (anti-NMDA) antibodies. Treatment involved intravenous (IV) immunoglobulins, plasmapheresis, and corticosteroids. After discharge, both had cognitive sequelae. Autoimmune encephalitis is a pathological condition that still lacks thorough exploration and reporting. It predominantly affects young patients without a history of acute psychiatric symptoms, necessitating consideration when behavioral alterations emerge. The challenges faced by small cities, including a shortage of technical resources, further impede the timely and precise diagnosis of this intricate condition.
Collapse
Affiliation(s)
- Carla B Graos
- Department of Neurology, Hospital Victor Lazarte Echegaray, Trujillo, PER
| | - Victor M Montalvan
- Department of Neurology, Hospital Víctor Lazarte Echegaray, Trujillo, PER
| | - Percy Torres
- Department of Neurology, Hospital Víctor Lazarte Echegaray, Trujillo, PER
| | - Camila Coboj
- School of Medicine, Autonomous University of Durango, Durango, MEX
| | - Fernando S Geldres
- Department of Neurosurgery, Hospital Victor Lazarte Echegaray, Trujillo, PER
| |
Collapse
|
28
|
Morillos MB, Borelli WV, Noll G, Piccini CD, Leite MB, Finkelsztejn A, Bianchin MM, Castilhos RM, Torres CM. Autoimmune encephalitis in a resource-limited public health setting: a case series analysis. ARQUIVOS DE NEURO-PSIQUIATRIA 2024; 82:1-10. [PMID: 38325385 PMCID: PMC10849825 DOI: 10.1055/s-0044-1779054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 10/22/2023] [Indexed: 02/09/2024]
Abstract
BACKGROUND Autoimmune encephalitis (AE) consists of a group of acquired diseases that affect the central nervous system. A myriad of phenotypes may be present at the onset. Due to the heterogeneity of clinical presentations, it is difficult to achieve uniformity for the diagnostic and therapeutic processes and follow-up strategies. OBJECTIVE To describe a series of patients diagnosed with AE in a resource-limited public hospital in southern Brazil and to analyze therapeutics and outcomes. METHODS We retrospectively reviewed the electronic medical records of patients diagnosed with AE at the Hospital de Clínicas de Porto Alegre from 2014 to 2022. Data collected included clinical presentation, neuroimaging, cerebrospinal fluid testings, electroencephalogram, autoantibodies, treatments, outcomes, follow-up time, degree of neurological impairment, and mortality. RESULTS Data from 17 patients were retrieved. Eleven cases were classified as definite AE and 6 as possible AE. Autoantibodies were identified in 9 patients. Timing for diagnosis was impacted by the high costs associated with autoantibody testing. Most patients became functionally dependent (82.4%) and most survivors remained with autoimmune-associated epilepsy (75%). Five patients died during hospitalization, and one after a 26-month of follow-up. CONCLUSION In this resource-limited hospital, patients with AE had a worse clinical outcome than that previously described in the literature. Development of epilepsy during follow-up and mortality were greater, whilst functional outcome was inferior. Autoantibody testing was initially denied in most patients, which impacted the definitive diagnosis and the use of second-line therapies.
Collapse
Affiliation(s)
| | | | - Giovani Noll
- Hospital de Clínicas de Porto Alegre, Serviço de Neurologia, Porto Alegre RS, Brazil.
| | | | - Martim Bravo Leite
- Hospital de Clínicas de Porto Alegre, Serviço de Neurologia, Porto Alegre RS, Brazil.
| | | | - Marino Muxfeldt Bianchin
- Hospital de Clínicas de Porto Alegre, Serviço de Neurologia, Porto Alegre RS, Brazil.
- Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Departamento de Medicina Interna, Porto Alegre RS, Brazil.
- Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Medicina: Ciências Médicas, Porto Alegre RS, Brazil.
| | - Raphael Machado Castilhos
- Hospital de Clínicas de Porto Alegre, Serviço de Neurologia, Porto Alegre RS, Brazil.
- Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Medicina: Ciências Médicas, Porto Alegre RS, Brazil.
| | | |
Collapse
|
29
|
Li D, Yang A, Xia M, Ma K, Zhang J, Guo Y, Zang W. Association between red blood cell distribution width-to-albumin ratio and the prognosis in patients with autoimmune encephalitis: a retrospective cohort study. Front Neurol 2024; 14:1276026. [PMID: 38274889 PMCID: PMC10808499 DOI: 10.3389/fneur.2023.1276026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Aim Red blood cell distribution width-to-albumin ratio (RAR) is a combined new indicator reflecting immunology and has been reported to predict the prognosis of inflammation-related diseases and brain diseases. However, the association and predictive value of RAR in the prognosis of patients with autoimmune encephalitis (AE) has not been reported. Methods This was a retrospective cohort study, and data were collected from the Henan Provincial People's Hospital. RAR was categorized according to quartile. The prognosis was assessed using the modified Rankin Scale (mRS), and an mRS score of ≥3 was defined as a poor prognosis. The logistical regression model was used to explore the association between RAR and the prognosis, with results reported as odds ratio (OR) and 95% confidence interval (CI). The predictive value of RAR was evaluated by calculating the area under the receiving operating curve (AUC), sensitivity, specificity, and accuracy. Results A total of 175 eligible patients were included for analysis, and 51 patients were identified as having poor prognosis. After adjusting age, cancer, other diseases, histological subtype, antiepileptic therapy, anti-tumor treatment, ICU treatment, and length of stay, RAR in the highest quartile (Q4) was found to be significantly associated with the high odds of poor prognosis (OR = 5.63, 95%CI: 1.98-16.02) compared to RAR in the lowest quartile (Q1). In addition, RAR was identified as a predictor for the prognosis of AE patients (AUC = 0.660, 95%CI: 0.574-0.746). Conclusion This study found the close association and predictive value of RAR for the prognosis of AE patients, indicating that RAR might help clinicians identify high-risk populations.
Collapse
Affiliation(s)
- Dan Li
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Ali Yang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Mingrong Xia
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Kai Ma
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Jiewen Zhang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Yang Guo
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| | - Weizhou Zang
- Department of Neurology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, China
| |
Collapse
|
30
|
Kvam KA, Stahl JP, Chow FC, Soldatos A, Tattevin P, Sejvar J, Mailles A. Outcome and Sequelae of Autoimmune Encephalitis. J Clin Neurol 2024; 20:3-22. [PMID: 38179628 PMCID: PMC10782092 DOI: 10.3988/jcn.2023.0242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 01/06/2024] Open
Abstract
Autoimmune etiologies are a common cause for encephalitis. The clinical syndromes consistent with autoimmune encephalitis are both distinct and increasingly recognized, but less is known about persisting sequelae or outcomes. We searched PubMed for reports on outcomes after autoimmune encephalitis. Studies assessing validated, quantitative outcomes were included. We performed a narrative review of the published literature of outcomes after autoimmune encephalitis. We found 146 studies that produced outcomes data. The mortality rates were 6%-19% and the relapse risks were 10%-62%. Most patients achieved a good outcome based on a score on the modified Rankin Scale (mRS) of ≤2. Forty-nine studies evaluated outcomes beyond mRS; these studies investigated cognitive outcome, psychiatric sequelae, neurological deficits, global function, and quality-of-life/patient-reported outcomes using various tools at varying time points after the index hospital discharge. These more-detailed assessments revealed that most patients had persistent impairments, with frequent deficits in cognitive function, especially memory and attention. Depression and anxiety were also common. Many of these sequelae continued to improve over months or even years after the acute illness. While we found that lasting impairments were common among survivors of autoimmune encephalitis, additional research is needed to better understand the nature and impact of these sequelae. Standardized evaluation protocols are needed to improve the ability to compare outcomes across studies, guide rehabilitation strategies, and inform outcomes of interest in treatment trials as the field advances.
Collapse
Affiliation(s)
- Kathryn A Kvam
- Department of Neurology & Neurological Sciences, Center for Academic Medicine, Stanford University, Stanford, CA, USA.
| | | | - Felicia C Chow
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, CA, USA
- Department of Medicine, Division of Infectious Diseases, University of California, San Francisco, CA, USA
| | - Ariane Soldatos
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Pierre Tattevin
- Infectious Diseases and Intensive Care Unit, Pontchaillou University Hospital, Rennes, France
| | - James Sejvar
- Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Alexandra Mailles
- Department of Infectious Diseases, Santé publique France, Saint-Maurice, France
| |
Collapse
|
31
|
Villagrán-García M, Farina A, Campetella L, Arzalluz-Luque J, Honnorat J. Autonomic nervous system involvement in autoimmune encephalitis and paraneoplastic neurological syndromes. Rev Neurol (Paris) 2024; 180:107-116. [PMID: 38142198 DOI: 10.1016/j.neurol.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
In autoimmune neurological diseases, the autonomic nervous system can be the primary target of autoimmunity (e.g. autoimmune autonomic ganglionopathy), or, more frequently, be damaged together with other areas of the nervous system (e.g. Guillain-Barré syndrome). Patients with autoimmune encephalitis and paraneoplastic neurological syndromes (PNS) often develop dysautonomia; however, the frequency and spectrum of autonomic signs and symptoms remain ill defined except for those scenarios in which dysautonomia is a core feature of the disease. Such is the case of Lambert-Eaton myasthenic syndrome, Morvan syndrome or anti-NMDAR encephalitis; in the latter, patients with dysautonomia have been reported to carry a more severe disease and to retain higher disability than those without autonomic dysfunction. Likewise, the presence of autonomic involvement indicates a higher risk of death due to neurological cause in patients with anti-Hu PNS. However, in anti-Hu and other PNS, as well as in the context of immune checkpoint inhibitors' toxicities, the characterization of autonomic involvement is frequently overshadowed by the severity of other neurological symptoms and signs. When evaluated with tests specific for autonomic function, patients with autoimmune encephalitis or PNS usually show a more widespread autonomic involvement than clinically suggested, which may reflect a potential gap of care when it comes to diagnosing dysautonomia. This review aims to revise the autonomic involvement in patients with autoimmune encephalitis and PNS, using for that purpose an antibody-based approach. We also discuss and provide general recommendations for the evaluation and management of dysautonomia in these patients.
Collapse
Affiliation(s)
- M Villagrán-García
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France
| | - A Farina
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France; Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - L Campetella
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France
| | - J Arzalluz-Luque
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Department of Neurology, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - J Honnorat
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France.
| |
Collapse
|
32
|
Lu Y, Wu Y, Sun L, Yang S, Kuang H, Li R, Meng Y, Wu Y. Identifying the Anti-inflammatory Effects of Astragalus Polysaccharides in Anti-N-Methyl-D-Aspartate Receptor Encephalitis: Network Pharmacology and Experimental Validation. Comb Chem High Throughput Screen 2024; 27:1022-1032. [PMID: 37587811 DOI: 10.2174/1386207326666230816162113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/17/2023] [Accepted: 06/09/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Astragalus polysaccharides (APS), a group of bioactive compounds obtained from the natural source Astragalus membranaceus (AM), exhibits numerous pharmacological actions in the central nervous system, such as anti-inflammatory, antioxidant, and immunomodulatory properties. Despite the remarkable benefits, the effectiveness of APS in treating anti- N-methyl-D-aspartate receptor (NMDAR) encephalitis and the corresponding mechanism have yet to be fully understood. As such, this study aims to investigate the impact of APS on anti-NMDAR encephalitis and explore the potential molecular network mechanism. METHODS The impact of APS intervention on mice with anti-NMDAR encephalitis was assessed, and the possible molecular network mechanism was investigated utilizing network pharmacology and bioinformatics techniques such as Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG),protein-protein interaction (PPI) network, and molecular docking. Enzymelinked immunosorbent assay (ELISA) was applied to detect the expression of core target proteins. RESULTS APS significantly ameliorated cognitive impairment and reduced susceptibility to PTZinduced seizures in mice with anti-NMDAR encephalitis, confirming the beneficial effect of APS on anti-NMDAR encephalitis. Seventeen intersecting genes were identified between APS and anti- NMDAR encephalitis. GO and KEGG analyses revealed the characteristics of the intersecting gene networks. STRING interaction in the PPI network was applied to find crucial molecules. The results of molecular docking suggested that APS may regulate interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) as potential targets in anti-NMDAR encephalitis. Furthermore, the levels of IL-1β, IL-6, and TNF-α detected by ELISA in anti-NMDAR encephalitis mice were significantly downregulated in response to the administration of APS. CONCLUSION The findings of this study demonstrate the significant role of APS in the treatment of anti-NMDAR encephalitis, as it effectively suppresses inflammatory cytokines. These results suggest that APS has the potential to be considered as a viable herbal medication for the treatment of anti-NMDAR encephalitis.
Collapse
Affiliation(s)
- Yuling Lu
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Ying Wu
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Lanfeng Sun
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Shengyu Yang
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Huimin Kuang
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Rida Li
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Youshi Meng
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| | - Yuan Wu
- Department of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
| |
Collapse
|
33
|
Khannanova AN, Brylev LV, Prusova AA, Aksenova EV, Kondrasheva EA, Kovaleva IS. [Autoimmune encephalitis: psychiatric aspects]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:20-27. [PMID: 38465807 DOI: 10.17116/jnevro202412402120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Autoimmune encephalitis is a group of diseases researched by both neurologists and psychiatrists. Despite a large number of studies and practical recommendations, the differential diagnosis and early diagnostics still remains an important issue. The most difficult to diagnose are cases that debut as mental disorders and/or occur without neurological symptoms. The literature review presents the current state of the problem with an emphasis on the practice of a psychiatrist.
Collapse
Affiliation(s)
- A N Khannanova
- Gannushkin Psychiatric Clinical Hospital No. 4, Moscow, Russia
- Russian Biotechnological University, Moscow, Russia
| | - L V Brylev
- V.M. Bujanov Moscow Clinical Hospital, Moscow, Russia
- Institute of Higher Nervous Activity and Neurophysiology, Moscow, Russia
| | - A A Prusova
- Gannushkin Psychiatric Clinical Hospital No. 4, Moscow, Russia
| | | | | | | |
Collapse
|
34
|
Kerner C, Kotobelli K, Appleby BS, Cohen ML, Abboud H. Pathological findings in autoimmune encephalitis autopsy specimens from cases of suspected prion disease. J Neurol 2024; 271:446-456. [PMID: 37755461 DOI: 10.1007/s00415-023-12003-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023]
Abstract
OBJECTIVE The underlying pathology of autoimmune encephalitis is not well characterized due to the limited opportunities to study tissue specimens. Autopsy specimens available at prion surveillance centers from patients with suspected Creutzfeldt-Jakob disease offer a unique opportunity to study the pathology of autoimmune encephalitis. Our objective was to describe pathological findings of autoimmune encephalitis specimens submitted to the U.S. National Prion Disease Pathology Surveillance Center. METHODS Pathology reports were obtained from the National Prion Center. Specimens negative for prion disease were screened for inflammatory pathology and those suggestive of autoimmune encephalitis were analyzed. Cases identified on autopsy were compared to institutional cases with fatal seronegative autoimmune encephalitis and available brain biopsy. RESULTS Between 1998 and 2022, 7934 specimens were evaluated of which 2998 (38%) were negative for prion protein. Querying the database for alternative diagnoses of encephalitis/encephalopathy yielded 43 cases that were screened by an experienced neuropathologist yielding 14 (0.5%) cases consistent with autoimmune encephalitis. Most specimens showed diffuse inflammation involving the limbic system (86%), basal ganglia (86%), cortex (71%), diencephalon (71%), and in some cases the brainstem (43%) and cerebellum (43%). Lymphocytic inflammatory infiltrate was predominantly perivascular with parenchymal extension in 64%. Microglial activation/nodules were seen in 64% of cases. Neuronal loss was present only in 50%. Pathological findings were identical to biopsy specimens from our institutional cohort. DISCUSSION Seronegative AE may have consistent pathology with diffuse or multifocal perivascular inflammation and microglial activation. Half the patients do not have neuronal loss suggesting a potential for neurological recovery. These findings are preliminary and require further confirmation.
Collapse
Affiliation(s)
- Christina Kerner
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Keisi Kotobelli
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
- National Prion Disease Pathology Surveillance Center (NPDPSC), Case Western Reserve University, Cleveland, OH, USA
| | - Brian S Appleby
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
- National Prion Disease Pathology Surveillance Center (NPDPSC), Case Western Reserve University, Cleveland, OH, USA
- Brain Health and Memory Center, University Hospitals of Cleveland, Cleveland, OH, USA
| | - Mark L Cohen
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
- National Prion Disease Pathology Surveillance Center (NPDPSC), Case Western Reserve University, Cleveland, OH, USA
- Department of Pathology, University Hospitals of Cleveland, Cleveland, OH, USA
| | - Hesham Abboud
- Case Western Reserve University School of Medicine, Cleveland, OH, USA.
- Multiple Sclerosis and Neuroimmunology Program, University Hospitals of Cleveland, Cleveland, OH, USA.
- Parkinson's and Movement Disorders Center, University Hospitals, Cleveland Medical Center, Bolwell, 5th Floor, 11100 Euclid Avenue, Cleveland, OH, 44106, USA.
| |
Collapse
|
35
|
Kerstens J, Titulaer MJ. Overview of treatment strategies in paraneoplastic neurological syndromes. HANDBOOK OF CLINICAL NEUROLOGY 2024; 200:97-112. [PMID: 38494299 DOI: 10.1016/b978-0-12-823912-4.00015-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Treatment strategies in paraneoplastic neurological syndromes rely on the three pillars of tumor treatment, immunotherapy, and symptomatic treatment, the first one being by far the most important in the majority of patients and syndromes. Classically, antibodies against extracellular antigens are directly pathogenic, and patients with these syndromes are more responsive to immunomodulatory or immunosuppressive treatments than the ones with antibodies against intracellular targets. This chapter first discusses some general principles of tumor treatment and immunotherapy, followed by a closer look at specific treatment options for different clinical syndromes, focusing on symptomatic treatments.
Collapse
Affiliation(s)
- Jeroen Kerstens
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Maarten J Titulaer
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands.
| |
Collapse
|
36
|
Ryding M, Mikkelsen AW, Nissen MS, Nilsson AC, Blaabjerg M. Pathophysiological Effects of Autoantibodies in Autoimmune Encephalitides. Cells 2023; 13:15. [PMID: 38201219 PMCID: PMC10778077 DOI: 10.3390/cells13010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The heterogeneity of autoantibody targets in autoimmune encephalitides presents a challenge for understanding cellular and humoral pathophysiology, and the development of new treatment strategies. Thus, current treatment aims at autoantibody removal and immunosuppression, and is primarily based on data generated from other autoimmune neurological diseases and expert consensus. There are many subtypes of autoimmune encephalitides, which now entails both diseases with autoantibodies targeting extracellular antigens and classical paraneoplastic syndromes with autoantibodies targeting intracellular antigens. Here, we review the current knowledge of molecular and cellular effects of autoantibodies associated with autoimmune encephalitis, and evaluate the evidence behind the proposed pathophysiological mechanisms of autoantibodies in autoimmune encephalitis.
Collapse
Affiliation(s)
- Matias Ryding
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark;
- Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
| | - Anne With Mikkelsen
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark;
| | | | - Anna Christine Nilsson
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark;
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark;
| | - Morten Blaabjerg
- Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark;
- Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5000 Odense, Denmark
- Department of Neurology, Odense University Hospital, 5000 Odense, Denmark;
- Brain Research—Inter Disciplinary Guided Excellence (BRIDGE), 5000 Odense, Denmark
| |
Collapse
|
37
|
Shrimpton M, Malhotra A. Neurosyphilis presenting as limbic encephalitis. BMJ Case Rep 2023; 16:e258794. [PMID: 38097281 PMCID: PMC10728948 DOI: 10.1136/bcr-2023-258794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
A man in his 50s presented with focal seizures and was found to have an inflammatory cerebrospinal fluid (CSF) with bilateral mesiotemporal lobe hyperintensity on magnetic resonance imaging (MRI) of the brain. Corticosteroid treatment was initiated for management of limbic encephalitis. Focal seizures, imaging abnormalities and inflammatory CSF persisted despite treatment and the patient was found to have neurosyphilis after developing neuropsychiatric symptoms. Syphilis is a sexually transmitted bacterial infection with multisystem involvement including neurological and psychiatric manifestations. Case reports have emerged of neurosyphilis presenting as limbic encephalitis with CSF pleocytosis and temporal lobe hyperintensity on MRI of the brain. Persistence of CSF or MRI abnormalities despite immunosuppressive therapy for limbic encephalitis should prompt investigation for alternate causes of chronic meningoencephalitis, which can occasionally include neurosyphilis.
Collapse
|
38
|
Bandeira GG, Barreto Lima PLGDS, Araújo DABS, Pinheiro MSN, Albuquerque Mota LD, Simão RM, de Carvalho FMO, Vazquez FD, de Vasconcelos Gama VC, de Queiroz DC, da Fonseca Lira MZR, de Oliveira Júnior PH, Guimarães Junior FA, Caminha GC, de Figueiredo Santos C, Sobreira-Neto MA, Braga-Neto P, Silva GD, Nóbrega PR. Controversies in immunotherapy for anti-NMDA receptor encephalitis: a scoping review with a proposal of operational definitions. Neurol Sci 2023; 44:4307-4312. [PMID: 37597088 DOI: 10.1007/s10072-023-07018-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023]
Abstract
Anti-NMDA receptor encephalitis (NMDARE), an autoimmune encephalitis associated with autoantibodies against the N-methyl-D-aspartate (NMDA) receptor, affects predominantly young women and is associated with psychiatric symptoms, seizures, movement disorders, and autonomic instability. Traditional treatments of anti-NMDA receptor encephalitis involve corticosteroids, intravenous immunoglobulin, plasmapheresis, cyclophosphamide, and rituximab. However, many controversies remain in the treatment for NMDA receptor encephalitis, such as optimal timing and combination of different immunotherapies, the role of newer strategies (e.g., bortezomib or tocilizumab) for severe and refractory patients, and the need or not for long-term immunosuppression. Our goal was to perform a scoping review to discuss the controversial topics of immunotherapy for NMDA receptor encephalitis and propose operational definitions to guide clinical practice and future research in the field.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Carolina de Figueiredo Santos
- Universidade de Fortaleza, Ceara, Fortaleza, Brazil
- Hospital Infantil Albert Sabin, Ceara, Fortaleza, Brazil
- Núcleo de Tratamento e Estimulação Precoce, Federal University of Ceara, Fortaleza, Brazil
| | | | - Pedro Braga-Neto
- Division of Neurology, Department of Clinical Medicine, Federal University of Ceara, Fortaleza, Brazil
| | - Guilherme Diogo Silva
- Division of Neurology, Hospital of Clinics, University of São Paulo, São Paulo, Brazil
| | | |
Collapse
|
39
|
Nerkar S, Sharath HV, Kochar SS, Bhoyar SS. Impact of Neurological Rehabilitation in Autoimmune Encephalopathy: A Case Report. Cureus 2023; 15:e50466. [PMID: 38222182 PMCID: PMC10786327 DOI: 10.7759/cureus.50466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
The physiotherapy rehabilitation program aims to build up functional activity, coordination, and balance ambulation for proper independence in the activities of daily living. An uncommon but complicated neurological condition called autoimmune encephalopathy is caused by the body's immune system mistakenly attacking healthy brain tissue. This condition often leads to a wide range of neurological and cognitive symptoms, making its diagnosis and treatment challenging. Physiotherapy, a vital component of the comprehensive management of autoimmune encephalopathy, plays an important role in improving the health of affected patients. In this report, the patient's occupational requirements and enhancement in executing daily living tasks were the focus of physiotherapeutic rehabilitation. The outcomes included the Berg Balance Scale and Functional Independence Measure. We observed a marked increment in muscle tone and strength, active range of motion, and significant enhancement in the individual's functional independence with physiotherapeutic protocol postoperatively. This case report provides an overview of the execution and function of physiotherapy in the management of autoimmune encephalopathy, emphasizing its contributions to symptom alleviation, functional recovery, and the overall well-being of patients.
Collapse
Affiliation(s)
- Sharvil Nerkar
- Paediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - H V Sharath
- Paediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Shraddha S Kochar
- Paediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sarang S Bhoyar
- Paediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| |
Collapse
|
40
|
Li EC, Lai QL, Cai MT, Fang GL, Shen CH, Ding MP, Zhang YX. Anti-adenylate kinase 5 encephalitis: Clinical characteristics, diagnosis, and management of this rare entity. J Transl Autoimmun 2023; 7:100218. [PMID: 37859804 PMCID: PMC10582738 DOI: 10.1016/j.jtauto.2023.100218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/08/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
The spectrum and understanding of antibody-positive autoimmune encephalitis (AE) have expanded over the past few decades. In 2007, a rare subtype of AE known as anti-adenylate kinase 5 (AK5) encephalitis, was first reported. This disease is more common in elderly males, with limbic encephalitis as the core phenotype (characterized by subacute anterograde amnesia, sometimes with psychiatric symptoms, and rarely with seizures). Brain magnetic resonance imaging typically demonstrated initial temporal lobe T2/fluid-attenuated inversion recovery hyperintensities, and subsequent atrophy. No concomitant tumors have been found yet. AK5 antibody, targeting the intracellular antigen, is a biomarker for a non-paraneoplastic T-cell autoimmunity response, and can be detected in serum and cerebrospinal fluid using tissue-based and cell-based assays. Cytotoxic T-cell-mediating neuronal injury and loss play a pivotal role in the immunopathogenesis of anti-AK5 encephalitis. Patients mostly show poor response to immunotherapy and thus a poor prognosis in the long run. Herein, we review the literature and provide updated knowledge of this less-known entity, focusing on clinical characteristics, paraclinical findings, diagnosis process, and therapeutic approaches.
Collapse
Affiliation(s)
- Er-Chuang Li
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Department of Neurology, Taikang Ningbo Hospital, Ningbo, 315042, China
| | - Qi-Lun Lai
- Department of Neurology, Zhejiang Hospital, Hangzhou, 310013, China
| | - Meng-Ting Cai
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Gao-Li Fang
- Department of Neurology, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, 310003, China
| | - Chun-Hong Shen
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Mei-Ping Ding
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yin-Xi Zhang
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| |
Collapse
|
41
|
Reyes-Sosa LC, León-Castillo DA, Jiménez-Islas JC, Aguilar-Vázquez CA. [Report of two cases of anti-LGI1 autoimmune encephalitis in Mexico]. REVISTA MEDICA DEL INSTITUTO MEXICANO DEL SEGURO SOCIAL 2023; 61:868-874. [PMID: 37995384 PMCID: PMC10727757 DOI: 10.5281/zenodo.10064492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/11/2023] [Indexed: 11/25/2023]
Abstract
Background: Anti-LGI1 encephalitis is characterized by a pattern of inflammation that predominantly affects the limbic system It is part of the autoimmune encephalitis that attack neuronal surface antigens. It is characterized by the triad of subacute dementia, faciobrachial dystonic crises, and hyponatremia, presenting an excellent response to immunotherapy. The aim of this article is to describe the clinical evolution and functional outcome at 6 months of two patients with anti-LGI1 encephalitis using clinical cases. Clinical cases Case 1: 62-year-old man with 8-week symptoms manifested by changes in mood, disorientation, and focal motor seizures. Case 2 A 72-year-old woman with a 5-month evolution of rapidly progressive dementia, hyponatremia and bitemporal hyperintensities on MRI. In both, due to clinical suspicion, acute dual immunotherapy with steroid and immunoglobulin was given with substantial improvement. Subsequently, the existence of anti-LGI1 antibodies in cerebrospinal fluid was confirmed. Although both patients received a dose of rituximab during their hospitalization, only the patient in the first case continued biannual doses of rituximab. The second patient was not initially considered to continue long-term immunomodulatory treatment and experienced a relapse. Conclusions These clinical vignettes present the reader with the classic characteristics of this disease. This can facilitate its recognition and timely initiation of treatment, improving the functional prognosis of patients.
Collapse
Affiliation(s)
- Luis Carlos Reyes-Sosa
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Especialidades “Dr. Bernardo Sepúlveda Gutiérrez”, Servicio de Neurología. Ciudad de México, México Instituto Mexicano del Seguro SocialMéxico
| | - Daniela Alexia León-Castillo
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Especialidades “Dr. Bernardo Sepúlveda Gutiérrez”, Servicio de Neurología. Ciudad de México, México Instituto Mexicano del Seguro SocialMéxico
| | - Juan Carlos Jiménez-Islas
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Especialidades “Dr. Bernardo Sepúlveda Gutiérrez”, Servicio de Neurología. Ciudad de México, México Instituto Mexicano del Seguro SocialMéxico
| | - Crhistian Alejandro Aguilar-Vázquez
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Especialidades “Dr. Bernardo Sepúlveda Gutiérrez”, Servicio de Neurología. Ciudad de México, México Instituto Mexicano del Seguro SocialMéxico
| |
Collapse
|
42
|
Xia SQ, Fan HN, Fan LF, Xia W, Chen G. Paraneoplastic anti-GAD65 extralimbic encephalitis presented with epilepsy: A case report. Medicine (Baltimore) 2023; 102:e34780. [PMID: 37933077 PMCID: PMC10627632 DOI: 10.1097/md.0000000000034780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/26/2023] [Indexed: 11/08/2023] Open
Abstract
RATIONALE Autoimmunity targeting glutamic acid decarboxylase 65 (GAD65) is associated with type 1 diabetes mellitus as well as various neurological diseases. In the central nervous system, GAD65 autoimmunity usually presents with limbic encephalitis, whereas extralimbic encephalitis (ELE) has only been reported in a few cases. Moreover, anti-GAD65 ELE in the paraneoplastic context has not yet been reported. PATIENT CONCERNS A 60-year-old man presented with intermittent cough and sputum for 10 years, with no other diseases. The patient presented with recurrent seizures that were resistant to antiepileptic drugs (AEDs). Chest computed tomography and pathological results confirmed the diagnosis of small cell lung cancer. Paraneoplastic testing found a high level of GAD65 antibodies in his serum, and cerebrospinal fluid analysis revealed lymphocytic pleocytosis, indicating autoimmune encephalitis. Brain magnetic resonance imaging showed multifocal T2 fluid-attenuated inversion recovery hyperintensities in the extralimbic areas including the subcortex and deep white matter of the bilateral frontal lobe, parietal lobe, and insula lobes. DIAGNOSES Finally, a diagnosis of anti-GAD65 autoimmune ELE with a paraneoplastic etiology from the small cell lung cancer was suspected. INTERVENTIONS The patient refused any tumor-suppressive treatment or immunotherapy for potential side effects and only received AEDs levetiracetam, sodium valproate, and diazepam. OUTCOMES The epilepsy of the patient was resistant to AEDs, and the patient died a week after discharge due to disease progression. LESSONS Anti-GAD65 autoimmune encephalitis can be extralimbic, can present with isolated epilepsy, and extralimbic anti-GAD65 encephalitis can occur with an underlying malignancy.
Collapse
Affiliation(s)
- Si-Qi Xia
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hao-Nan Fan
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi, China
| | - Lin-Feng Fan
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wu Xia
- Department of Neurosurgery, Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, Zhejiang, China
| | - Gao Chen
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| |
Collapse
|
43
|
Kang Y, Zhen H, Ma N, Zhao H, Cao B. Encephalitis in a patient with hypopharynx cancer treated with immune checkpoint inhibitors and radiotherapy: a case report and review of the literature. J Cancer Res Clin Oncol 2023; 149:16239-16246. [PMID: 37676267 PMCID: PMC10620264 DOI: 10.1007/s00432-023-05328-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 08/21/2023] [Indexed: 09/08/2023]
Abstract
Hypopharyngeal cancer (HPC) has one of the most unfavorable prognoses among head and neck squamous cell carcinomas. Immunotherapy in combination with chemotherapy, the same as conventional induction chemotherapy, has emerged as a vital part of the induction therapy protocol for HPC. Meanwhile, the incidence of immune-related adverse events is increasing. In this light, we present the first reported case of immune-associated encephalitis in a patient with hypopharyngeal cancer treated with Camrelizumab (a PD-1 inhibitor). After receiving immunotherapy combined with chemotherapy as induction therapy, along with concurrent chemoradiotherapy, the patient presented with symptoms of fatigue, tremors, drowsiness, and an abnormal signal in the right temporal lobe as shown on a brain magnetic resonance imaging (MRI). Despite the minor elevation in protein and IgG index observed in the lumbar puncture, there is no evidence of abnormal autoantibodies or evidence of pathogenic infection. Following a thorough multidisciplinary consultation, the patient is suspected to be afflicted with immune-related autoimmune encephalitis. Intravenous methylprednisolone was prescribed as an empirical treatment at an initial dosage of 120 mg/day for 3 days, followed by steroid tapering. Finally, the patient experienced complete neurologic and radiographic (brain MRI) recovery. This case serves as a critical reminder that encephalitis is a potential diagnosis that should never be overlooked in patients undergoing immunotherapy who present with abnormal signs of the brain. The timely diagnosis and initiation of immunosuppressive therapy are key components of treating ICI-associated encephalitis.
Collapse
Affiliation(s)
- Yan Kang
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xicheng District, Beijing, 100050, People's Republic of China
| | - Hongchao Zhen
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xicheng District, Beijing, 100050, People's Republic of China
| | - Nina Ma
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xicheng District, Beijing, 100050, People's Republic of China
| | - Hong Zhao
- Department of Radiotherapy, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xicheng District, Beijing, 100050, People's Republic of China
| | - Bangwei Cao
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Xicheng District, Beijing, 100050, People's Republic of China.
| |
Collapse
|
44
|
Nathani M, Singh V, Sharma A, Manchanda V, Saxena S, Juneja M. Autoimmune encephalitis: A diagnostic enigma. Indian J Med Microbiol 2023; 46:100477. [PMID: 37742479 DOI: 10.1016/j.ijmmb.2023.100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/26/2023]
Abstract
Autoimmune encephalitis with anti-NMDA (N-methyl-D-aspartate) receptor encephalitis is the most common type. This condition can be associated with underlying malignancy, making appropriate screening essential. Prompt identification and intervention of autoimmune encephalitis is essential for a successful outcome and full recovery from this serious and potentially fatal condition. Immunotherapy is typically used to suppress the immune response and reduce brain inflammation. The choice of therapy depends on the type and severity of autoimmune encephalitis, as well as the presence of an underlying tumour.
Collapse
Affiliation(s)
| | | | - Anju Sharma
- Maulana Azad Medical College, New Delhi, India.
| | | | | | | |
Collapse
|
45
|
Fainberg NA, Silver MR, Arena JD, Landzberg EI, Banwell B, Gambrah-Lyles C, Kirschen MP, Madsen PJ, McLendon L, Narula S, Tucker AM, Huh JW, Kienzle MF. Invasive Multimodality Neuromonitoring to Manage Cerebral Edema in Pediatric Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease. Crit Care Explor 2023; 5:e1003. [PMID: 37929184 PMCID: PMC10624473 DOI: 10.1097/cce.0000000000001003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023] Open
Abstract
Background Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is an inflammatory disorder of the CNS with a variety of clinical manifestations, including cerebral edema. Case Summary A 7-year-old boy presented with headaches, nausea, and somnolence. He was found to have cerebral edema that progressed to brainstem herniation. Invasive multimodality neuromonitoring was initiated to guide management of intracranial hypertension and cerebral hypoxia while he received empiric therapies for neuroinflammation. Workup revealed serum myelin oligodendrocyte glycoprotein antibodies. He survived with a favorable neurologic outcome. Conclusion We describe a child who presented with cerebral edema and was ultimately diagnosed with MOGAD. Much of his management was guided using data from invasive multimodality neuromonitoring. Invasive multimodality neuromonitoring may have utility in managing life-threatening cerebral edema due to neuroinflammation.
Collapse
Affiliation(s)
- Nina A Fainberg
- Division of Critical Care Medicine, Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Maya R Silver
- Division of Child Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - John D Arena
- Division of Neurosurgery, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Elizabeth I Landzberg
- Division of Critical Care Medicine, Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Brenda Banwell
- Division of Child Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Claudia Gambrah-Lyles
- Division of Child Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Matthew P Kirschen
- Division of Critical Care Medicine, Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
- Division of Child Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Peter J Madsen
- Division of Neurosurgery, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Loren McLendon
- Division of Child and Adolescent Neurology, Mayo Clinic College of Medicine and Science, Jacksonville, FL
- Division of Pediatric Neurology, Nemours Children's Health, Jacksonville, FL
| | - Sona Narula
- Division of Child Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Alexander M Tucker
- Division of Neurosurgery, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Jimmy W Huh
- Division of Critical Care Medicine, Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Martha F Kienzle
- Division of Critical Care Medicine, Children's Hospital of Philadelphia, Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| |
Collapse
|
46
|
Mojžišová H, Krýsl D, Hanzalová J, Dargvainiene J, Wandinger KP, Leypoldt F, Elišák M, Marusič P. Antibody-Negative Autoimmune Encephalitis: A Single-Center Retrospective Analysis. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2023; 10:e200170. [PMID: 37879962 PMCID: PMC10605954 DOI: 10.1212/nxi.0000000000200170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/29/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND AND OBJECTIVES Autoimmune encephalitis (AE) refers to a heterogenous group of inflammatory CNS diseases. Subgroups with specified neural autoantibodies are more homogeneous in presentation, trigger factors, outcome, and response to therapy. However, a considerable fraction of patients has AE features but does not harbor detectable autoantibodies and is referred to as antibody-negative AE. Our aim was to describe clinical features, trigger factors, treatments, and outcome of a cohort of comprehensively tested antibody-negative AE patients. METHODS This retrospective monocentric study recruited adult patients whose serum and/or CSF was sent to our tertiary center for neural antibody testing between 2011 and 2020, who entered the diagnostic algorithm as possible antibody-negative AE and had the following: (1) probable antibody-negative AE, definite antibody-negative acute disseminated encephalomyelitis (ADEM), or definite autoimmune limbic encephalitis (LE) according to diagnostic criteria; (2) available data on MRI of the brain, CSF, and EEG; and (3) stored serum and/or CSF samples. These samples were reanalyzed using a comprehensive combination of cell-based and tissue-based assays. RESULTS Of 2,250 patients tested, 33 (1.5%) were classified as possible antibody-negative AE. Of these, 5 were found to have antibodies by comprehensive testing, 5 fulfilled the criteria of probable AE (3F:2M, median age 67, range 42-67), 4 of definite autoimmune LE (2F:2M, median age 45.5, range 27-60 years), one of definite antibody-negative ADEM, 2 of Hashimoto encephalopathy, one had no samples available for additional testing, and 15 had no further categorization. Of 10 probable/definite AE/LE/ADEM, one had a malignancy and none of them received an alternative diagnosis until the end of follow-up (median 18 months). In total, 80% (8/10) of patients received immunotherapy including corticosteroids, and 6/10 (60%) patients received rituximab, azathioprine, cyclophosphamide, plasma exchange, or IV immunoglobulins. Five (50%) patients improved, one (10%) stabilized, one (10%) worsened, and 3 (30%) died. All deaths were considered to be related to encephalitis. We did not observe differences of immunotherapy-treated patients in likelihood of improvement with or without nonsteroidal immunotherapy (with 2/6, without 1/2). DISCUSSION Antibody-negative AE should be diagnosed only after comprehensive testing. Diagnostic effort is important because many patients benefit from immunotherapy and some have malignancies.
Collapse
Affiliation(s)
- Hana Mojžišová
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany.
| | - David Krýsl
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Jitka Hanzalová
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Justina Dargvainiene
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Klaus-Peter Wandinger
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Frank Leypoldt
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Martin Elišák
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| | - Petr Marusič
- From the Departments of Neurology (H.M., D.K., M.E., P.M.) and Immunology (J.H.), Second Faculty of Medicine Charles University and Motol University Hospital, Prague, Czech Republic; Institute of Clinical Chemistry (J.D., K.-P.W., F.L.), University Hospital Schleswig-Holstein, Kiel/Lübeck; and Neuroimmunology (F.L.), Department of Neurology, University Hospital Schleswig-Holstein Kiel, Germany
| |
Collapse
|
47
|
Monson N, Smith C, Greenberg H, Plumb P, Guzman A, Tse K, Chen D, Zhang W, Morgan M, Speed H, Powell C, Batra S, Cowell L, Christley S, Vernino S, Blackburn K, Greenberg B. VH2+ Antigen-Experienced B Cells in the Cerebrospinal Fluid Are Expanded and Enriched in Pediatric Anti-NMDA Receptor Encephalitis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1332-1339. [PMID: 37712756 PMCID: PMC10593502 DOI: 10.4049/jimmunol.2300156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 08/17/2023] [Indexed: 09/16/2023]
Abstract
Pediatric and adult autoimmune encephalitis (AE) are often associated with Abs to the NR1 subunit of the N-methyl-d-aspartate (NMDA) receptor (NMDAR). Very little is known regarding the cerebrospinal fluid humoral immune profile and Ab genetics associated with pediatric anti-NMDAR-AE. Using a combination of cellular, molecular, and immunogenetics tools, we collected cerebrospinal fluid from pediatric subjects and generated 1) flow cytometry data to calculate the frequency of B cell subtypes in the cerebrospinal fluid of pediatric subjects with anti-NMDAR-AE and controls, 2) a panel of recombinant human Abs from a pediatric case of anti-NMDAR-AE that was refractory to treatment, and 3) a detailed analysis of the Ab genes that bound the NR1 subunit of the NMDAR. Ag-experienced B cells including memory cells, plasmablasts, and Ab-secreting cells were expanded in the pediatric anti-NMDAR-AE cohort, but not in the controls. These Ag-experienced B cells in the cerebrospinal fluid of a pediatric case of NMDAR-AE that was refractory to treatment had expanded use of variable H chain family 2 (VH2) genes with high somatic hypermutation that all bound to the NR1 subunit of the NMDAR. A CDR3 motif was identified in this refractory case that likely drove early stage activation and expansion of naive B cells to Ab-secreting cells, facilitating autoimmunity associated with pediatric anti-NMDAR-AE through the production of Abs that bind NR1. These features of humoral immune responses in the cerebrospinal fluid of pediatric anti-NMDAR-AE patients may be relevant for clinical diagnosis and treatment.
Collapse
Affiliation(s)
- Nancy Monson
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
- Department of Immunology, UT Southwestern Medical Center, Dallas, TX
| | - Chad Smith
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Hannah Greenberg
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Patricia Plumb
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Alyssa Guzman
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Key Tse
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Ding Chen
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Wei Zhang
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Miles Morgan
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Haley Speed
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Craig Powell
- Department of Neurobiology, Civitan International Research Center, University of Alabama Marnix E. Heersink School of Medicine, Birmingham, AL
| | - Sushobhna Batra
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Lindsay Cowell
- Department of Population and Data Sciences, UT Southwestern Medical Center, Dallas, TX
| | - Scott Christley
- Department of Population and Data Sciences, UT Southwestern Medical Center, Dallas, TX
| | - Steve Vernino
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | - Kyle Blackburn
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX
| | | |
Collapse
|
48
|
Qin M, Chen J, Guo X, Xiang X, Nie L, Wang Y, Mao L. Movement disorders in autoimmune encephalitis: an update. J Neurol 2023; 270:5288-5302. [PMID: 37523063 DOI: 10.1007/s00415-023-11881-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 08/01/2023]
Abstract
Autoimmune encephalitis (AE) is a form of encephalitis resulting from an immune response targeting central nervous system antigens, which is characterized by cognitive impairment, neuropsychiatric symptoms, seizures, movement disorders (MDs), and other encephalopathy symptoms. MDs frequently manifest throughout the progression of the disease, with recurrent involuntary movements leading to discomfort and, in some cases, necessitating admission to the intensive care unit. Prompt identification and management of MDs can aid in the diagnosis and prognosis of AE. This review synthesizes current knowledge on the characteristics, underlying mechanisms, and treatment options for MDs in the context of AE.
Collapse
Affiliation(s)
- Mengting Qin
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaojiao Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoqing Guo
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuying Xiang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Nie
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Ling Mao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
49
|
Ceanga M, Rahmati V, Haselmann H, Schmidl L, Hunter D, Brauer AK, Liebscher S, Kreye J, Prüss H, Groc L, Hallermann S, Dalmau J, Ori A, Heckmann M, Geis C. Human NMDAR autoantibodies disrupt excitatory-inhibitory balance, leading to hippocampal network hypersynchrony. Cell Rep 2023; 42:113166. [PMID: 37768823 DOI: 10.1016/j.celrep.2023.113166] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/30/2023] [Accepted: 09/07/2023] [Indexed: 09/30/2023] Open
Abstract
Anti-NMDA receptor autoantibodies (NMDAR-Abs) in patients with NMDAR encephalitis cause severe disease symptoms resembling psychosis and cause cognitive dysfunction. After passive transfer of patients' cerebrospinal fluid or human monoclonal anti-GluN1-autoantibodies in mice, we find a disrupted excitatory-inhibitory balance resulting from CA1 neuronal hypoexcitability, reduced AMPA receptor (AMPAR) signaling, and faster synaptic inhibition in acute hippocampal slices. Functional alterations are also reflected in widespread remodeling of the hippocampal proteome, including changes in glutamatergic and GABAergic neurotransmission. NMDAR-Abs amplify network γ oscillations and disrupt θ-γ coupling. A data-informed network model reveals that lower AMPAR strength and faster GABAA receptor current kinetics chiefly account for these abnormal oscillations. As predicted in silico and evidenced ex vivo, positive allosteric modulation of AMPARs alleviates aberrant γ activity, reinforcing the causative effects of the excitatory-inhibitory imbalance. Collectively, NMDAR-Ab-induced aberrant synaptic, cellular, and network dynamics provide conceptual insights into NMDAR-Ab-mediated pathomechanisms and reveal promising therapeutic targets that merit future in vivo validation.
Collapse
Affiliation(s)
- Mihai Ceanga
- Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, 07747 Jena, Germany
| | - Vahid Rahmati
- Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, 07747 Jena, Germany
| | - Holger Haselmann
- Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, 07747 Jena, Germany
| | - Lars Schmidl
- Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, 07747 Jena, Germany
| | - Daniel Hunter
- Université de Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, 33000 Bordeaux, France
| | - Anna-Katherina Brauer
- Institute of Clinical Neuroimmunology, Klinikum der Universität München, Ludwig Maximilians University Munich, Martinsried, Germany; Biomedical Center, Ludwig Maximilians University Munich, Martinsried, Germany
| | - Sabine Liebscher
- Institute of Clinical Neuroimmunology, Klinikum der Universität München, Ludwig Maximilians University Munich, Martinsried, Germany; Biomedical Center, Ludwig Maximilians University Munich, Martinsried, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Jakob Kreye
- Department of Neurology and Experimental Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; German Center for Neurodegenerative Diseases (DZNE) Berlin, Berlin, Germany; Department of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Harald Prüss
- Department of Neurology and Experimental Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; German Center for Neurodegenerative Diseases (DZNE) Berlin, Berlin, Germany
| | - Laurent Groc
- Université de Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, 33000 Bordeaux, France
| | - Stefan Hallermann
- Carl Ludwig Institute for Physiology, Faculty of Medicine, Leipzig University, 04103 Leipzig, Germany
| | - Josep Dalmau
- Catalan Institution for Research and Advanced Studies (ICREA) and IDIBAPS-Hospital Clinic, University of Barcelona, 08036 Barcelona, Spain
| | - Alessandro Ori
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), 07745 Jena, Germany
| | - Manfred Heckmann
- Department of Neurophysiology, Institute of Physiology, University of Würzburg, 97070 Würzburg, Germany
| | - Christian Geis
- Section of Translational Neuroimmunology, Department of Neurology, Jena University Hospital, 07747 Jena, Germany.
| |
Collapse
|
50
|
Hansen N, Rentzsch K, Hirschel S, Wiltfang J, Schott BH, Malchow B, Bartels C. Persisting Verbal Memory Encoding and Recall Deficiency after mGluR5 Autoantibody-Mediated Encephalitis. Brain Sci 2023; 13:1537. [PMID: 38002497 PMCID: PMC10669453 DOI: 10.3390/brainsci13111537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/16/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Metabotropic glutamate receptors type 5 (mGluR5) play a central role in persistent forms of synaptic plasticity and memory formation. Antibodies to mGluR5 have been reported to be clinically associated with memory impairment. Here, we report on a patient with persistent amnestic cognitive impairment in a single cognitive domain after resolution of mGluR5-associated encephalitis. METHODS We report on the clinical data of a patient in our Department of Psychiatry and Psychotherapy who underwent several diagnostic investigations including a detailed neuropsychological examination, magnetic resonance imaging, and cerebrospinal fluid analysis involving the determination of neural autoantibodies. RESULTS A 54-year-old woman presented to our memory clinic with pleocytosis 4 months after remission of probable anti-mGluR5-mediated encephalitis, revealing initial pleocytosis and serum proof of anti-mGluR5 autoantibodies (1:32). A neuropsychological examination revealed mild cognitive impairment in verbal memory encoding and recall. The patient received immunotherapy with corticosteroids, and a subsequent cerebrospinal fluid analysis 1.5 months after the onset of encephalitis confirmed no further signs of inflammation. CONCLUSIONS Our results suggest that although immunotherapy resulted in the remission of anti-mGluR5 encephalitis, a verbal memory encoding and recall dysfunction persisted. It remains unclear whether the reason for the persistent verbal memory impairment is attributable to insufficiently long immunotherapy or initially ineffective immunotherapy. Because mGluR5 plays an essential role in persistent synaptic plasticity in the hippocampus, it is tempting to speculate that the mGluR5 antibody-antigen complex could lead to persistent cognitive dysfunction, still present after the acute CNS inflammation stage of encephalitis.
Collapse
Affiliation(s)
- Niels Hansen
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
- Clinical Immunological Laboratory Prof. Stöcker, 23627 Groß Grönau, Germany
| | - Kristin Rentzsch
- German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075 Goettingen, Germany;
| | - Sina Hirschel
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
- Neurosciences and Signaling Group, Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
- Leibniz-Institute of Neurobiology, University of Magdeburg, 39106 Magdeburg, Germany
| | - Björn H. Schott
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
- German Center for Neurodegenerative Diseases (DZNE), Von-Siebold-Str. 3a, 37075 Goettingen, Germany;
- Leibniz-Institute of Neurobiology, University of Magdeburg, 39106 Magdeburg, Germany
| | - Berend Malchow
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
| | - Claudia Bartels
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; (S.H.); (J.W.); (B.H.S.); (B.M.); (C.B.)
| |
Collapse
|