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https://www.readbyqxmd.com/read/28040316/ovarian-teratoma-development-after-anti-nmda-receptor-encephalitis-treatment
#1
Taku Omata, Kazuo Kodama, Yoshimi Watanabe, Yukiko Iida, Yoshiaki Furusawa, Akiko Takashima, Yukitoshi Takahashi, Hiroshi Sakuma, Keiko Tanaka, Katsunori Fujii, Naoki Shimojo
BACKGROUND: Anti-NMDA-R receptor encephalitis occurs predominantly in younger women and is often comorbid with ovarian teratoma, a feature that is often absent in children. Here, we report our experience with two pediatric patients, in whom no tumors were present during treatment for encephalitis, but in whom ovarian teratomas developed without encephalitis relapse after treatment was completed. CASES: Patient 1 was a 14-year-old girl who was diagnosed due to characteristic symptoms and anti-NMDA-R antibody...
December 28, 2016: Brain & Development
https://www.readbyqxmd.com/read/28018466/a-young-child-of-anti-nmda-receptor-encephalitis-presenting-with-epilepsia-partialis-continua-the-first-pediatric-case-in-korea
#2
Eun-Hee Kim, Yeo Jin Kim, Tae-Sung Ko, Mi-Sun Yum, Jun Hwa Lee
Anti-N-methyl D-aspartate receptor (anti-NMDAR) encephalitis, recently recognized as a form of paraneoplastic encephalitis, is characterized by a prodromal phase of unspecific illness with fever that resembles a viral disease. The prodromal phase is followed by seizures, disturbed consciousness, psychiatric features, prominent abnormal movements, and autonomic imbalance. Here, we report a case of anti-NMDAR encephalitis with initial symptoms of epilepsia partialis continua in the absence of tumor. Briefly, a 3-year-old girl was admitted to the hospital due to right-sided, complex partial seizures without preceding febrile illness...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28003505/bortezomib-for-treatment-of-therapy-refractory-anti-nmda-receptor-encephalitis
#3
Franziska Scheibe, Harald Prüss, Annerose M Mengel, Siegfried Kohler, Astrid Nümann, Martin Köhnlein, Klemens Ruprecht, Tobias Alexander, Falk Hiepe, Andreas Meisel
OBJECTIVE: We assessed the therapeutic potential of the plasma-cell-depleting proteasome inhibitor bortezomib in severe and therapy-refractory cases of anti-NMDA receptor (anti-NMDAR) encephalitis. METHODS: Five severely affected patients with anti-NMDAR encephalitis with delayed treatment response or resistance to standard immunosuppressive and B-cell-depleting drugs (corticosteroids, IV immunoglobulins, plasma exchange, immunoadsorption, rituximab, cyclophosphamide) who required medical treatment and artificial ventilation on intensive care units were treated with 1-6 cycles of 1...
December 21, 2016: Neurology
https://www.readbyqxmd.com/read/27920282/nmda-receptor-encephalitis-and-other-antibody-mediated-disorders-of-the-synapse-the-2016-cotzias-lecture
#4
Josep Dalmau
Investigations during the last 10 years have revealed a group of disorders mediated by antibodies against ion channels and synaptic receptors, which cause both neurologic and psychiatric symptoms. In this review, I discuss the process of discovery and immunologic triggers of these disorders, and use anti-NMDA receptor encephalitis to emphasize the importance of understanding the underlying physiopathologic mechanisms in those diseases. A better knowledge of these mechanisms reveals points of convergence with other disorders (e...
December 6, 2016: Neurology
https://www.readbyqxmd.com/read/27913085/anti-n-methyl-d-aspartate-receptor-encephalitis-and-rasmussen-like-syndrome-an-association
#5
Kevin Gurcharran, Shefali Karkare
BACKGROUND: N-methyl-D-aspartate (NMDA) receptor encephalitis is an immune-mediated condition that has a broad spectrum of manifestations, including seizures, coma, psychosis, and focal neurological deficits. Although usually a diffuse process, unihemispheric involvement mimicking early stages of Rasmussen encephalitis can occur. Rasmussen's encephalitis is a unique syndrome characterized by progressive hemiplegia, drug-resistant focal epilepsy, cognitive decline, and hemispheric brain atrophy contralateral to the hemiplegia...
January 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/27899309/repeated-misdiagnosis-of-a-relapsed-atypical-anti-nmda-receptor-encephalitis-without-an-associated-ovarian-teratoma
#6
Weihe Zhang, Li Yan, Jinsong Jiao
We present an atypical case of relapsed anti-NMDAR encephalitis in a young female patient without an associated ovarian teratoma. She presented with recurrent seizure attacks with muscle weakness, psychosis, dyskinesia, autonomic failure and insomnia. She was first misdiagnosed as mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) then Hashimoto's encephalopathy due to diffuse cerebral lesions, elevated serum lactic acid concentration, increased amount of thyroid peroxidase and thyroglobulin antibodies in serum and diffuse lesions of the thyroid gland...
January 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/27826871/anti-n-methyl-d-aspartate-receptor-encephalitis-after-herpes-simplex-virus-associated-encephalitis-an-emerging-disease-with-diagnosis-and-therapeutic-challenges
#7
Flora Schein, Amandine Gagneux-Brunon, Jean-Christophe Antoine, Sylvie Lavernhe, Sylvie Pillet, Stéphane Paul, Anne Frésard, Claire Boutet, Rémi Grange, Céline Cazorla, Frédéric Lucht, Elisabeth Botelho-Nevers
INTRODUCTION: Morbidity and mortality of Herpes simplex virus encephalitis (HSE) remain high. Relapses of neurological signs may occur after initial clinical improvement under acyclovir treatment. METHODS: We report here a case of post-HSE anti-N-methyl-d-aspartate receptor-mediated encephalitis in an adult and perform a systematic search on PubMed to identify other cases in adults. RESULTS: We identified 11 previously published cases, to discuss diagnostic and therapeutic management...
November 8, 2016: Infection
https://www.readbyqxmd.com/read/27791020/essential-protective-role-of-tumor-necrosis-factor-receptor-2-in-neurodegeneration
#8
Yun Dong, Roman Fischer, Petrus J W Naudé, Olaf Maier, Csaba Nyakas, Maëlle Duffey, Eddy A Van der Zee, Doortje Dekens, Wanda Douwenga, Andreas Herrmann, Eric Guenzi, Roland E Kontermann, Klaus Pfizenmaier, Ulrich L M Eisel
Despite the recognized role of tumor necrosis factor (TNF) in inflammation and neuronal degeneration, anti-TNF therapeutics failed to treat neurodegenerative diseases. Animal disease models had revealed the antithetic effects of the two TNF receptors (TNFR) in the central nervous system, whereby TNFR1 has been associated with inflammatory degeneration and TNFR2 with neuroprotection. We here show the therapeutic potential of selective inhibition of TNFR1 and activation of TNFR2 by ATROSAB, a TNFR1-selective antagonistic antibody, and EHD2-scTNFR2, an agonistic TNFR2-selective TNF, respectively, in a mouse model of NMDA-induced acute neurodegeneration...
October 25, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27778112/anti-n-methyl-d-aspartate-receptor-encephalitis-associated-with-intracranial-angiostrongylus-cantonensis-infection-a-case-report
#9
Yu Peng, Xiaojia Liu, Suyue Pan, Zuoshan Xie, Honghao Wang
Anti-N-methyl-D-aspartate (NMDA) receptor encephalitis is a recently described paraneoplastic syndrome with prominent neuropsychiatric symptoms. Many of these cases are associated with neoplasma especially teratoma. In addition, a few of cases with anti-NMDAR antibodies triggered by viral infection have been reported, but never by parasitic infection. Here, we report a novel case of NMDA receptor encephalitis in a 51-year-old male related to the development of anti-NMDAR antibodies triggered by Angiostrongylus cantonensis infection...
October 24, 2016: Neurological Sciences
https://www.readbyqxmd.com/read/27682615/anti-myelin-oligodendrocyte-glycoprotein-antibody-neuritis-optica-following-anti-nmda-receptor-encephalitis
#10
Koji Yokoyama, Mutsuki Hori, Akira Yoshida
No abstract text is available yet for this article.
September 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27676823/adult-anti-nmda-receptor-encephalitis-which-physical-and-rehabilitation-medicine-program-case-reports-and-literature-review
#11
Jean-Marie Beis, Morgane Renard
OBJECTIVE: Anti-NMDA (N-Methyl-D-Aspartate) receptor encephalitis (NMDA-E) is the second cause of autoimmune encephalitis in adults. The objectives of this presentation are to describe the main clinical elements and rehabilitation specificities. OBSERVATIONS: Three female inpatients (mean age: 25) present with moderate to severe behavioural and/or psychiatric disorders, seizures and presence of associated tumor in one patient. Presence of anti-NMDA antibodies in the cerebrospinal liquid confirmed diagnosis...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27667494/-nmda-glur-subunit-antibody-positive-encephalitis-a-clinical-analysis-of-five-cases
#12
Chikako Kaneko, Norshalena Shakespear, Mario Tuchiya, Jin Kubo, Teiji Yamamoto, Soichi Katayama, Yukitoshi Takahashi
Five consecutive cases of anti-NMDA-receptor encephalitis that we encountered were marked by a rapidly fluctuating level of consciousness associated with psychotic and delirious mental states. Opisthotonus, catatonia, and rhythmic and non-rhythmic involuntary movements of the mouth and jaw were also characteristic features of these particular cases. Serious and potentially fatal problems included epilepsia partialis continua, partial and generalized seizures, and respiratory depression, resembling the symptoms of encephalitis lethargica...
September 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27667486/-anti-nmda-receptor-antibody-related-encephalitis
#13
Shigemi Nagayama, Keiko Tanaka
Recently, the search for diagnostic antibody markers has drawn considerable attention in relation to autoimmune encephalitis. Among the antibody markers, the most frequently detected is the anti-N-methyl-D-aspartate receptor (NMDAR)antibody. Patients with this antibody develop characteristic clinical features. This disease tends to affect young women, and starts with psychiatric symptoms followed by seizures, involuntary movements, autonomic failure, and respiratory failure. Nearly half of these female patients have ovarian teratoma...
September 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27606355/neuroleptic-intolerance-in-patients-with-anti-nmdar-encephalitis
#14
Florian Lejuste, Laure Thomas, Géraldine Picard, Virginie Desestret, François Ducray, Veronique Rogemond, Dimitri Psimaras, Jean-Christophe Antoine, Jean-Yves Delattre, Laurent Groc, Marion Leboyer, Jerome Honnorat
OBJECTIVE: To precisely describe the initial psychiatric presentation of patients with anti-NMDA receptor (NMDAR) antibodies encephalitis (anti-NMDAR encephalitis) to identify potential clues enhancing its early diagnosis. METHODS: We retrospectively studied the French Reference Centre medical records of every adult patient with anti-NMDAR encephalitis to specify the patients' initial psychiatric symptoms leading to hospitalization in a psychiatric department and the reasons underlying the diagnosis of anti-NMDAR encephalitis...
October 2016: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/27561785/postural-tachycardia-syndrome-pots-with-anti-nmda-receptor-antibodies-after-human-papillomavirus-vaccination
#15
Svetlana Blitshteyn, Jill Brook
We describe a young woman who developed POTS with positive serum anti-NMDA receptor antibodies and no evidence of encephalitis after vaccination with HPV vaccine, Cervarix. Her symptoms improved significantly with immunomodulatory therapy and re-occurred after immunomodulatory therapy was stopped, suggesting an autoimmune etiology of POTS after vaccination.
August 25, 2016: Immunologic Research
https://www.readbyqxmd.com/read/27557073/-autoimmune-encephalitis
#16
Albrecht Günther, Julia Schubert, Dirk Brämer, Otto Wilhelm Witte
Autoimmune encephalitis, an inflammatory disease of the brain, is usually attributed to antibody-mediated damage and dysfunction of neuronal structures. A distinction is made between onconeuronal antibodies (directed against intracellular neuronal antigens with resulting paraneoplastic neurological syndromes) and antibodies directed against neuronal cell surface proteins (with resulting synaptic encephalopathies). Anti-NMDA-Receptor-Encephalitis, the most common form of autoimmune encephalopathy, is characterized by a phased course of disease...
August 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27534680/cases-of-remission-of-psychosis-following-resection-of-pheochromocytoma-or-paraganglioma
#17
James S Brown
The author previously proposed that schizophrenia has similar cytokine expression compared to melanoma, a neural crest cell tumor. One possible tumor model of schizophrenia includes anti-NMDA receptor encephalitis, a paraneoplastic syndrome. While examining the possible relationship of neural crest cell tumors to schizophrenia, the author found several case reports of psychosis resulting from pheochromocytomas and paragangliomas, types of neural crest cell tumors that secrete catecholamines. In most cases, surgical resection of the tumors resulted in remission of psychotic symptoms, and some remissions were associated with reduced levels of peripheral catecholamine levels...
October 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27529308/anti-nmda-receptor-antibody-encephalitis-with-concomitant-detection-of-varicella-zoster-virus
#18
Natalia Solís, Lucrecia Salazar, Rodrigo Hasbun
The typical presentation of anti-NMDA (N-Methyl-d-Aspartate) receptor encephalitis involves young women with psychiatric, neurologic and autonomic symptoms; it is often associated with mature ovarian teratomas. NMDA receptor encephalitis has been described following Herpes simplex virus (HSV) encephalitis. This case describes a classic presentation of anti-NMDA receptor encephalitis with the concomitant presence of Varicella zoster virus in the cerebrospinal fluid.
October 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27522586/a-new-densovirus-in-cerebrospinal-fluid-from-a-case-of-anti-nmda-receptor-encephalitis
#19
Tung Gia Phan, Kevin Messacar, Samuel R Dominguez, Antonio Charlys da Costa, Xutao Deng, Eric Delwart
We characterized the genome of a densovirus, tentatively called human CSF-associated densovirus 1 (HuCSFDV1), in cerebrospinal fluid (CSF) from a human case of encephalitis with antibodies against the N-methyl D-aspartate receptor. The presence of the viral genome in CSF was independently confirmed. This virus, which is proposed to be a member of a new species in the genus Iteradensovirus of the subfamily Densovirinae, showed the typical two ORFs encoding nonstructural and structural proteins with low-level identities of 22 and 16 % to the closest known densovirus relative...
November 2016: Archives of Virology
https://www.readbyqxmd.com/read/27502387/bi-insular-cortical-involvement-in-anti-nmda-receptor-encephalitis-a-case-report
#20
Harald Hegen, Christian Uprimny, Astrid Grams, Irene Virgolini, Melanie Ramberger, Ronny Beer, Raimund Helbok, Bettina Pfausler, Erich Schmutzhard
BACKGROUND: Anti-NMDA-receptor encephalitis is an immune-mediated inflammatory disorder of the central nervous system. Brain MRI is unremarkable in at least 50% of patients and highly variable in the remaining patients with signal abnormalities in different brain regions. Only scarce reports exist on other imaging modalities. CASE PRESENTATION: A 31-year-old woman sub-acutely developed psychosis, behavioural changes, amnesia, alternating states of agitation and mutism, fever and epileptic seizures...
August 8, 2016: BMC Neurology
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