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Anti-N-methyl-D-aspartate receptor encephalitis

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https://www.readbyqxmd.com/read/28328164/anti-n-methyl-d-aspartate-receptor-encephalitis-in-m%C3%A4-ori-and-pacific-island-children-in-new-zealand
#1
Hannah F Jones, Shekeeb S Mohammad, Peter W Reed, Paul P J Dunn, Richard H Steele, Russell C Dale, Cynthia Sharpe
AIM: To investigate the incidence and severity of anti-N-methyl-d-aspartate (anti-NMDA) receptor encephalitis in children from New Zealand. METHOD: A retrospective case series was undertaken of all children (≤18y) diagnosed with anti-NMDA receptor encephalitis from January 2008 to October 2015. RESULTS: Sixteen patients were identified with anti-NMDA receptor antibodies in the cerebrospinal fluid, three of whom had an associated teratoma...
March 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28298911/autoantibodies-against-the-n-methyl-d-aspartate-receptor-subunit-nr1-untangling-apparent-inconsistencies-for-clinical-practice
#2
REVIEW
Hannelore Ehrenreich
This viewpoint review provides an integrative picture of seemingly contradictory work published on N-methyl-d-aspartate receptor 1 (NMDAR1) autoantibodies (AB). Based on the present state of knowledge, it gives recommendations for the clinical decision process regarding immunosuppressive treatment. Brain antigen-directed AB in general and NMDAR1-AB in particular belong to a preexisting autoimmune repertoire of mammals including humans. Specific autoimmune reactive B cells may get repeatedly (perhaps transiently) boosted by various potential stimulants (e...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28292230/response-to-management-of-anti-n-methyl-d-aspartate-nmda-receptor-encephalitis-in-children
#3
J Nicholas Brenton
No abstract text is available yet for this article.
April 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28284352/raised-cerebrospinal-fluid-baff-and-april-levels-in-anti-n-methyl-d-aspartate-receptor-encephalitis-correlation-with-clinical-outcome
#4
Bo Deng, Xiao-Ni Liu, Xiang Li, Xiang Zhang, Chao Quan, Xiang-Jun Chen
In this study, we aimed to assess the levels of B cell activating factor from the tumor necrosis factor family (BAFF) and a proliferation-inducing ligand (APRIL) in cerebrospinal fluid (CSF) of patients with anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis and determine their correlation with clinical outcome. BAFF and APRIL concentrations in CSF and serum from 40 patients with anti-NMDAR encephalitis and 20 controls were measured by enzyme-linked immunosorbent assay (ELISA). Compared with controls, the levels of both BAFF and APRIL in CSF were significantly increased in patients with anti-NMDAR encephalitis (p<0...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28283100/antecedent-anti-nmda-receptor-encephalitis-in-two-patients-with-multiple-sclerosis
#5
A Baheerathan, W J Brownlee, D T Chard, K Shields, R Gregory, S A Trip
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune disorder characterised by psychiatric symptoms, movement disorder and seizures often evolving into a severe encephalopathy. An overlap has recently been recognised between anti-NMDAR encephalitis and inflammatory demyelinating disorders, particularly neuromyelitis optical spectrum disorder (NMOSD). In this case report, we describe two patients with an initial presentation consistent with anti-NMDAR encephalitis who have subsequently developed relapsing-remitting multiple sclerosis (MS) and discuss the literature pertaining to potential overlap between NMDAR encephalitis and inflammatory demyelinating disorders...
February 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28282627/anti-nmdar-encephalitis-followed-by-seropositive-neuromyelitis-optica-spectrum-disorder-a-case-report-and-literature-review
#6
REVIEW
Ye Ran, Lu Wang, Fangfang Zhang, Ran Ao, Zhao Dong, Shengyuan Yu
Neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory central nervous system syndrome, and encephalitis associated with anti-N-methyl-d-aspartate receptor (NMDAR) antibodies is an autoimmune encephalopathy. A patient with both diseases, separately or simultaneously, is rare as a clinical phenomenon, but cannot be ignored. We report the clinical characteristics and imaging features of a special case with anti-NMDAR encephalitis followed by NMOSD. We subsequently reviewed the English language literature about demyelinating disorders with anti-NMDAR encephalitis...
February 27, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28272206/limbic-encephalitis-associated-with-anti-nh2-terminal-of-%C3%AE-enolase-antibodies-a-clinical-subtype-of-hashimoto-encephalopathy
#7
Toru Kishitani, Akiko Matsunaga, Masamichi Ikawa, Kouji Hayashi, Osamu Yamamura, Tadanori Hamano, Osamu Watanabe, Keiko Tanaka, Yasunari Nakamoto, Makoto Yoneda
Several types of autoantibodies have been reported in autoimmune limbic encephalitis (LE), such as antibodies against the voltage-gated potassium channel (VGKC) complex including leucine-rich glioma inactivated 1 (LGI1). We recently reported a patient with autoimmune LE and serum anti-NH2-terminal of α-enolase (NAE) antibodies, a specific diagnostic marker for Hashimoto encephalopathy (HE), who was diagnosed with HE based on the presence of antithyroid antibodies and responsiveness to immunotherapy. This case suggests that LE patients with antibodies to both the thyroid and NAE could be diagnosed with HE and respond to immunotherapy...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28262407/anti-n-methyl-d-aspartate-receptor-encephalitis-associated-with-hepatic-neuroendocrine-carcinoma-a-case-report
#8
Ee Wei Lim, Chun Wai Yip
Anti-N-methyl-D-aspartate receptor (Anti-NMDAR) encephalitis can present with and without tumor. Tumor associations are less common in older patients. We report a 65-year-old gentleman who presented with one week history of cough, chills, rigor and altered behavior, followed by florid visual and auditory hallucinations. Mini mental status examination score was 16/30. Both cerebrospinal fluid and plasma anti-NMDA receptor antibodies were detected. A course of intravenous methylprednisolone was given with partial symptom improvement...
March 2, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28262035/lesions-of-the-posterior-limb-of-the-internal-capsule-in-neuromyelitis-optica-spectrum-disorder
#9
Youming Long, Linzhan Wu, Rong Zhong, Xiaoming Ouyang, Junyan Liang, Cong Gao, Xiaohui Chen, Wei Qiu, Yanyu Chang, Zhanhang Wang, Jinlong Ye
Posterior limb of the internal capsule lesions (PLICL) are one of the MRI features of neuromyelitis optica spectrum disorder (NMOSD). However, there is no evidence that such lesions are pathogenically related to NMOSD. We retrospectively analyzed features of PLICL in NMOSD, and other central nervous system inflammatory disorders, in 561 patients. We also examined the pathological samples of six patients. Of the 561 patients investigated, PLICL were found in 65 patients (11.6%). Lesions were bilateral in 26 cases (40%) and unilateral in 39 cases (60%)...
March 6, 2017: Neurological Research
https://www.readbyqxmd.com/read/28261116/red-flags-clinical-signs-for-identifying-autoimmune-encephalitis-in-psychiatric-patients
#10
Julia Herken, Harald Prüss
Autoimmune mechanisms causing diverse psychiatric symptoms are increasingly recognized and brought about a paradigm shift in neuropsychiatry. Identification of underlying antibodies against neuronal ion channels or receptors led to the speculation that a number of patients go misdiagnosed with a primary psychiatric disease. However, there is no clear consensus which clinical signs in psychiatric patients should prompt further investigations including measurement of anti-neuronal autoantibodies. We therefore aimed to analyze the presenting symptoms in patients with autoimmune encephalitis and the time between symptom onset and initiation of antibody diagnostics...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28259863/-review-of-the-psychiatric-aspects-of-anti-nmda-n-methyl-d-aspartic-acid-receptor-encephalitis-case-report-and-our-plans-for-a-future-study
#11
Levente Herman, Ildiko Reka Zsigmond, Laszlo Peter, Janos M Rethelyi
Anti-NMDAR (N-methyl-D-aspartic acid receptor) encephalitis, first described in 2007, is a rare, autoimmune limbic encephalitis. In half of the cases anti-NMDAR antibodies are paraneoplastic manifestations of an underlying tumor (mostly ovarian teratoma). In the early stage of the disease psychiatric symptoms are prominent, therefore 60-70% of the patients are first treated in a psychiatric department. In most of the cases, typical neurological symptoms appear later. Besides the clinical picture and typical symptoms, verifying presence of IgG antibodies in the serum or CSF is necessary to set up the diagnosis...
December 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28255964/mr-imaging-of-acute-cerebellar-involvement-in-pediatric-anti-n-methyl-d-aspartate-receptor-encephalitis
#12
Bruno P Soares, Sonia F Calloni, Shai Shrot, Andrea Poretti
No abstract text is available yet for this article.
March 2, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28251511/herpes-simplex-encephalitis-an-update
#13
REVIEW
John W Gnann, Richard J Whitley
PURPOSE OF REVIEW: The goal of this review is to provide an update on current thinking regarding herpes simplex encephalitis (HSE), emphasizing new information about pathogenesis, diagnosis, and immune responses. Specific questions to be addressed are the following: (1) Is there a genetic predisposition to HSE? (2) What clinical approaches have the greatest impact on improving the long-term outcomes in patients with HSE? And (3) are there immune-mediated mechanisms that may account for relapsing HSE? RECENT FINDINGS: Toll-like receptor 3 (TLR 3) plays an important role in innate immune responses, including generation of interferons...
March 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28223808/n-methyl-d-aspartate-receptor-antibody-could-be-a-cause-of-catatonic-symptoms-in-psychiatric-patients-case-reports-and-methods-for-detection
#14
Ko Tsutsui, Takashi Kanbayashi, Manabu Takaki, Yuki Omori, Yumiko Imai, Seiji Nishino, Keiko Tanaka, Tetsuo Shimizu
The symptoms of catatonia have been reported to be similar to the initial symptoms of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Subsequently, this autoimmune limbic encephalitis has been noticed by many psychiatrists. For a differential diagnosis of catatonic state, it is important to detect anti-NMDAR encephalitis. This encephalitis is expected to be in remission by early detection and treatment. We should be more cautious about catatonic symptoms of schizophrenia. When a patient is suspected of having encephalitis, we should screen for anti-NMDAR antibodies in cerebrospinal fluid samples using a cell-based assay...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28202296/psychosis-in-the-ed-a-case-of-nmda-receptor-antibody-encephalitis
#15
Joseph Fisher, Clifford Ellingson, Noah Tolby
Anti-N-methyl-d-aspartate antibody receptor (NMDAR) encephalitis is a newly recognized disease increasing in diagnostic frequency. A 27-year-old female presented with symptoms of oral dyskinesia, tachycardia, and altered mental status following a three-month history of depression, lethargy, catatonia, and auditory hallucinations. We utilized our facilities neurology and psychiatry consult services, performed a lumbar puncture (LP), and requested NMDAR antibody titers. Following admission the Anti-NMDAR antibody titer was elevated warranting treatment with intravenous immunoglobulin (IVIG), corticosteroids, and later rituximab...
February 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28192149/serum-uric-acid-and-anti-n-methyl-d-aspartate-receptor-encephalitis
#16
Yaqing Shu, Yuge Wang, Tingting Lu, Rui Li, Xiaobo Sun, Jing Li, Yanyu Chang, Xueqiang Hu, Zhengqi Lu, Wei Qiu
BACKGROUND: Uric acid (UA) levels are associated with autoimmune and neurodegenerative disorders, but their relationship with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis is unknown. METHODS: UA levels were evaluated in 58 patients with anti-NMDAR encephalitis, and 58 age- and sex-matched healthy controls (CTLs). Follow-up evaluations of 30 out of the 58 patients with anti-NMDAR encephalitis were conducted 3 months after admission. Modified Rankin scale (mRS) scores and clinical and cerebrospinal fluid parameters were evaluated in all anti-NMDAR encephalitis patients...
February 10, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28186318/case-report-anti-n-methyl-d-aspartate-receptor-encephalitis-with-psychiatric-symptoms
#17
Ana Iglesias-Alonso, Celso Iglesias-García
No abstract text is available yet for this article.
January 2017: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/28166327/neurological-autoantibody-prevalence-in-epilepsy-of-unknown-etiology
#18
Divyanshu Dubey, Abdulradha Alqallaf, Ryan Hays, Matthew Freeman, Kevin Chen, Kan Ding, Mark Agostini, Steven Vernino
Importance: Autoimmune epilepsy is an underrecognized condition, and its true incidence is unknown. Identifying patients with an underlying autoimmune origin is critical because these patients' condition may remain refractory to conventional antiseizure medications but may respond to immunotherapy. Objective: To determine the prevalence of neurological autoantibodies (Abs) among adult patients with epilepsy of unknown etiology. Design, Setting, and Participants: Consecutive patients presenting to neurology services with new-onset epilepsy or established epilepsy of unknown etiology were identified...
February 6, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28162168/-analysis-of-clinical-characteristics-and-outcomes-of-mechanically-ventilated-patients-with-anti-n-methyl-d-aspartate-receptor-encephalitis
#19
Y Zhang, Y Y Su, D Q Gao, H Ye
Objective: To explore the clinical characteristics and long-term outcomes of mechanically ventilated patients with anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis. Methods: In this observational study, patients with anti-NMDAR encephalitis were enrolled, who were admitted into Xuanwu Hospital of Capital Medical University from Jan 2012 to Jun 2015.All patients accepted tumor screening, symptomatic therapy, and immunotherapy.Outcomes were assessed by modified Rankin Scale (mRS) after immunotherapy every 6 months, and mRS 0-2 was defined as favorable outcome...
January 17, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28154283/postpartum-anti-n-methyl-d-aspartate-receptor-encephalitis-a-case-report-and-literature-review
#20
REVIEW
Tadashi Doden, Yoshiki Sekijima, Junji Ikeda, Kazuki Ozawa, Nobuhiko Ohashi, Minori Kodaira, Akiyo Hineno, Naoko Tachibana, Shu-Ichi Ikeda
We describe a 24-year-old woman with anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis that developed 3 weeks after normal delivery. She was treated with methylprednisolone, intravenous immunoglobulin, and plasmapheresis, in addition to teratoma excision. However, her recovery was slow, and dysmnesia and mental juvenility persisted even two years after onset. To date, five patients with postpartum anti-NMDAR encephalitis have been reported. All of those patients showed psychotic symptoms and were suspected of having postpartum psychosis in the early period of the encephalitis...
2017: Internal Medicine
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