Read by QxMD icon Read

anti nmda receptor antibody

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
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
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
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
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
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
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
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
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
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
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...
2016: BMC Neurology
G Westman, M Studahl, C Ahlm, B M Eriksson, B Persson, J Rönnelid, S Schliamser, E Aurelius
OBJECTIVES: To investigate the prevalence and temporal development of N-methyl-d-aspartate receptor (NMDAR) autoantibodies in relation to neurocognitive performance in patients with herpes simplex encephalitis (HSE). METHODS: This prospective observational study enrolled a total of 49 HSE patients within a randomized controlled trial of valacyclovir. Cerebrospinal fluid and serum samples were drawn in the initial stage of disease, after 2 to 3 weeks and after 3 months...
August 3, 2016: Clinical Microbiology and Infection
Ricardo Erazo, Jaime González, Consuelo Quintanilla, Claudia Devaud, Consuelo Gayoso, Ximena Toledo, Erna Rauch, Claudia Riffo, Carolina Alvarez, Marne Salazar, Daniela Salvo, Josep Dalmau, Orietta Carmona
INTRODUCTION: Subacute anti-NMDA receptor encephalitis was recognised in 2007 as a clinical entity, and was first described in young women with ovarian teratoma. The first paediatric series unrelated with tumours was reported in 2009. OBJECTIVE: To present the clinical features, treatment, and prognosis of 13 patients with anti-NMDA receptor encephalitis in Chile. PATIENTS AND METHOD: A description is presented of 13 children, 9 males, aged between 1 and 16 years, diagnosed between 2009 and 2016 in 7 hospitals...
July 28, 2016: Revista Chilena de Pediatría
Mehmet Engin Tezcan, Emine Belgin Kocer, Seminur Haznedaroglu, Cemile Sonmez, Ridvan Mercan, Aysegul Atak Yucel, Ceyla Irkec, Berivan Bitik, Berna Goker
AIM: Cognitive dysfunction is a neurologic manifestation in primary Sjögren syndrome (PSS). On the other hand, several antibodies are related to cognitive dysfunction. The aim of this study is to assess the cognitive dysfunction of PSS patients via detailed neurologic tests. Moreover, its associations with antibodies were also evaluated. METHOD: Twenty-eight female patients with PSS and 17 healthy controls comprised the study groups. Short-term memory, long-term memory, verbal learning, visual memory, visual spatial perception, attention, verbal frequency function, executive functions and information processing speed were evaluated with neurologic tests in both of the study groups...
July 25, 2016: International Journal of Rheumatic Diseases
Jesús Planagumà, Holger Haselmann, Francesco Mannara, Mar Petit-Pedrol, Benedikt Grünewald, Esther Aguilar, Luise Röpke, Elena Martín-García, Maarten J Titulaer, Pablo Jercog, Francesc Graus, Rafael Maldonado, Christian Geis, Josep Dalmau
OBJECTIVE: To demonstrate that ephrin-B2 (the ligand of EphB2 receptor) antagonizes the pathogenic effects of patients' N-methyl-D-aspartate receptor (NMDAR) antibodies on memory and synaptic plasticity. METHODS: One hundred twenty-two C57BL/6J mice infused with cerebrospinal fluid (CSF) from patients with anti-NMDAR encephalitis or controls, with or without ephrin-B2, were investigated. CSF was infused through ventricular catheters connected to subcutaneous osmotic pumps over 14 days...
September 2016: Annals of Neurology
Yoshihito Ando, Haruo Shimazaki, Katsutoshi Shiota, Syuichi Tetsuka, Koichi Nakao, Tatsuhiro Shimada, Kazumi Kurata, Jinichi Kuroda, Akihiro Yamashita, Hayato Sato, Mamoru Sato, Shinkichi Eto, Yasunori Onishi, Keiko Tanaka, Satoshi Kato
BACKGROUND: Increasing numbers of patients with elevated anti-N-methyl-D-aspartate (NMDA) receptor antibody titers presenting exclusively with psychiatric symptoms have been reported. The aim of the present study was to clarify the prevalence of elevated serum anti-NMDA receptor antibody titers in patients with new-onset or acute exacerbations of psychiatric symptoms. In addition, the present study aimed to investigate the association between elevated anti-NMDA receptor titers and psychiatric symptoms...
2016: BMC Psychiatry
Kristine Engen, Ingrid Agartz
BACKGROUND In 2007 a clinical disease caused by autoantibodies directed against the N-methyl-D-aspartate (NMDA) receptor was described for the first time. Anti-NMDA-receptor encephalitis is a subacute, autoimmune neurological disorder with psychiatric manifestations. The disease is a form of limbic encephalitis and is often paraneoplastic. The condition is also treatable. In this review article we examine the development of the disease, clinical practice, diagnostics and treatment.MATERIAL AND METHOD The article is based on references retrieved from searches in PubMed, and a discretionary selection of articles from the authors' own literature archive...
June 2016: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
Takahiro Ikura, Omi Katsuse, Yuhei Chiba, Yukitoshi Takahashi, Hiroshige Fujishiro, Ayuko Kamada, Tomoyuki Saito, Yoshio Hirayasu
BACKGROUND: Patients with anti-thyroid antibodies (ATAs) are reported to exhibit atypical psychiatric symptoms. We have been reported that psychiatric patients with ATAs (PPATs) have anti-N-methyl-Daspartate (NMDA) type glutamate receptor (NMDA-R) antibodies by western blot analysis. NMDA-R forms a tetramer with the subunit glutamate receptors (GluR) GluRζ1 (NR1) and GluRε2 (NR2B). However, the possible etiological role of anti-NR1 and anti-NR2B antibodies in PPATs remains unclear. METHODS: First, we evaluated titers of anti-NR1 and anti-NR2B antibodies in PPATs by enzyme-linked immunosorbent assay (ELISA)...
August 15, 2016: Neuroscience Letters
Michael Weaver, Richard T Griffey
BACKGROUND: Anti-N-methyl-d-aspartate (NMDA) receptor autoimmune encephalitis is a newly identified form of encephalitis whose incidence is on the rise. Awareness of this condition and symptom recognition are key to early diagnosis and prompt treatment, which may alter the course of the disease. CASE REPORT: A 35-year-old woman presented to our Emergency Department (ED) with lethargy, bizarre behavior, agitation, confusion, memory deficits, and word-finding difficulties...
August 2016: Journal of Emergency Medicine
Clayton D Hinkle, James N Porter, Eric J Waldron, Hannah Klein, Daniel Tranel, Amy Heffelfinger
OBJECTIVE: Anti-N-methyl-D-aspartate (anti-NMDA) receptor encephalitis is an acute, immune-mediated paraneoplastic syndrome that often presents with psychobehavioral changes, abnormal movements, autonomic instability, seizures, and cognitive dysfunction. While the disease continues to be more readily identified and appropriately treated, the course of cognitive deficits from the acute to post-acute to chronic phase has not been well described, particularly in the pediatric population...
June 13, 2016: Clinical Neuropsychologist
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"