keyword
MENU ▼
Read by QxMD icon Read
search

anti nmda receptor antibody

keyword
https://www.readbyqxmd.com/read/29277332/cytokine-chemokine-elevation-during-the-transition-phase-from-hsv-encephalitis-to-autoimmune-anti-nmda-receptor-encephalitis
#1
Takanori Omae, Yoshiaki Saito, Hirokazu Tsuchie, Koyo Ohno, Yoshihiro Maegaki, Hiroshi Sakuma
A 3-year-old girl suffered from anti-N-methyl-d-aspartate (anti-NMDA) receptor encephalitis after resolution of herpes simplex virus encephalitis (HSE). Methylprednisolone pulse and immunoglobulin therapies showed little effect, but the patient completely recovered after six courses of monthly cyclophosphamide pulse therapy and successive maintenance on mycophenolate mofetil for one year. Anti-NMDA receptor antibody in the cerebrospinal fluid (CSF) was minimally detected during the prodromal febrile period and then was seen to be markedly elevated at the onset of second encephalopathy phase...
December 22, 2017: Brain & Development
https://www.readbyqxmd.com/read/29258969/a-case-of-anti-nmda-receptor-encephalitis-revealed-by-insular-epilepsy
#2
Charlotte De Maeseneire, Riem El Tahry, Susana Ferrao Santos
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune disorder of the central nervous system that typically manifests predominantly as a psychiatric disorder. However, other manifestations such as epileptic seizures, abnormal movements, and memory or language complications are not unusual. Here, we report the case of a young man who presented with a new-onset epilepsy, with ictal semiology suggestive of insular involvement; this hypothesis was supported by a PET-CT study. Anti-NMDAR antibodies were found in the CSF, confirming the diagnosis of anti-NMDAR encephalitis...
December 20, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/29203848/bdnf-release-and-signaling-are-required-for-the-antidepressant-actions-of-glyx-13
#3
T Kato, M V Fogaça, S Deyama, X-Y Li, K Fukumoto, R S Duman
Conventional antidepressant medications, which act on monoaminergic systems, display significant limitations, including a time lag of weeks to months and low rates of therapeutic efficacy. GLYX-13 is a novel glutamatergic compound that acts as an N-methyl-d-aspartate (NMDA) modulator with glycine-like partial agonist properties; like the NMDA receptor antagonist ketamine GLYX-13 produces rapid antidepressant actions in depressed patients and in preclinical rodent models. However, the mechanisms underlying the antidepressant actions of GLYX-13 have not been characterized...
December 5, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29200116/paraneoplastic-disorders
#4
Eric Lancaster
PURPOSE OF REVIEW: Paraneoplastic neurologic syndromes target specific areas of the nervous system with pathogenic autoantibodies or T-cell responses. Each syndrome conveys a risk of particular tumors. Expanded paraneoplastic antibody testing has led to improved diagnosis but created challenges involving appropriate interpretation of test results. RECENT FINDINGS: Peripheral nervous system paraneoplastic disorders such as myasthenia gravis and Lambert-Eaton myasthenic syndrome involve pathogenic autoantibodies...
December 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29198411/epileptic-spasms-secondary-to-acute-cerebral-and-cerebellar-encephalitis
#5
Tohru Okanishi, Ayataka Fujimoto, Risa Hashimoto, Mitsuyo Nishimura, Sotaro Kanai, Miho Ogawa, Takayuki Suzuki, Hirotaka Motoi, Yukitoshi Takahashi, Hideo Enoki
BACKGROUND: Patients with infection-related acute encephalitis sometimes develop epilepsy in the chronic phase of the disease. Patients with postencephalitic epilepsy usually develop partial seizures due to the lesions generated by the encephalitis. We report a case who developed late-onset epileptic spasms after acute cerebral and cerebellar encephalitis. CASE REPORT: A 5-year-old girl showed severe tremor, gait ataxia, partial or generalized tonic-clonic seizures, hyperactivity, and panic attacks after a mild enterocolitis...
November 29, 2017: Brain & Development
https://www.readbyqxmd.com/read/29183618/encephalitis-associated-with-antibodies-against-the-nmda-receptor
#6
REVIEW
Mar Guasp, Josep Dalmau
The encephalitis associated with antibodies against the N-methyl-D-aspartate receptor (NMDAR) is characterized by the presence of antibodies against the GluN1 subunit of this receptor, resulting in symptoms that are similar to those observed in models of genetic or pharmacologic reduction of NMDARs. Patients are usually young adults, predominantly women, and children who develop, in a sequential manner, rapidly progressive symptoms including psychosis, abnormal movements, autonomic dysfunction, and coma. Epileptic seizures are variable and can occur throughout the course of the disease...
November 25, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/29141829/cerebral-cortical-encephalitis-followed-by-recurrent-cns-demyelination-in-a-patient-with-concomitant-anti-mog-and-anti-nmda-receptor-antibodies
#7
Lei Zhou, Jingzi ZhangBao, Haiqing Li, Xiaoyang Li, Yongheng Huang, Min Wang, Chongbo Zhao, Jiahong Lu, Chuanzhen Lu, Yuxin Li, Chao Quan
We report the case of a patient who initially presented with fever, headache and seizure. MRI revealed a fluid attenuation inversion recovery (FLAIR) high-intensity lesion involving the right temporal, parietal and occipital cortex. Afterwards, the patient developed three recurrent episodes, manifested as brainstem encephalitis, optic neuritis and ADEM-like illness successively, indicating demyelination. Both of his serum anti-MOG and CSF anti-NMDAR antibodies were proved positive by transfected cell based assays...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29103424/autoantibody-associated-movement-disorders-in-children-proven-and-proposed
#8
Harvey S Singer
Movement disorders secondary to autoantibodies in children represent a rapidly expanding group of conditions. Once considered to be limited to poststreptococcal Sydenham's chorea or rare cases of childhood systemic lupus erythematosus, a variety of antibody-related movement abnormalities are now seen as part of noninfectious autoimmune encephalitis or within an expanding list of postinfectious disorders. In this article, several proposed autoantibody-mediated movement disorders in children are reviewed. In each one, there is a hypothesized antibody biomarker that is believed to be pathogenic and cause the clinical symptoms...
August 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/29075658/improving-the-antibody-based-evaluation-of-autoimmune-encephalitis
#9
Lindsey McCracken, Junxian Zhang, Maxwell Greene, Anne Crivaro, Joyce Gonzalez, Malek Kamoun, Eric Lancaster
OBJECTIVE: We tested whether antibody screening samples of patients with suspected autoimmune encephalitis with additional research assays would improve the detection of autoimmune encephalitis compared with standard clinical testing alone. METHODS: We examined 731 samples (333 CSF, 182 sera, and 108 pairs) from a cohort of 623 patients who were tested for CNS autoantibodies by the University of Pennsylvania clinical laboratory over a 24-month period with cell-based assays (CBAs) on commercially obtained slides of fixed cells for antibodies to NMDA receptor (NMDAR), α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR), γ-aminobutyric acid-B receptor (GABABR), leucine-rich glioma-inactivated 1 (LGI1), contactin-associated protein-like 2 (Caspr2), and glutamic acid decarboxylase (GAD65)...
November 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29050531/anti-nmda-receptor-encephalitis-still-unknown-and-underdiagnosed-by-physicians-and-especially-by-psychiatrists
#10
Tine Hermans, Patrick Santens, Celine Matton, Kristine Oostra, Gunter Heylens, Sarah Herremans, Gilbert M D Lemmens
Anti-NMDA receptor encephalitis is an autoimmune disorder confirmed by the presence of antibodies against the NMDA-receptor in serum or CSF. This case report describes a young woman with anti-NMDA receptor encephalitis, who presented with prominent psychiatric symptoms. There was a crucial delay in diagnosis and necessary treatment due to the fact that the clinical presentation was diagnosed and treated as a first psychotic episode. Physicians and especially psychiatrists, should consider the possibility of an autoimmune encephalitis in their differential diagnosis in every new onset psychotic episode with rapid progression, the presence of pathognomonic orofacial dyskinesia, the lack of psychiatric history, and the non-responding to psychopharmacological treatment...
October 19, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28948076/peripheral-neuropathy-in-limbic-encephalitis-with-anti-glutamate-receptor-antibodies-case-report-and-systematic-literature-review
#11
Yi-Chia Wei, Chin-Chang Huang, Chi-Hung Liu, Hung-Chou Kuo, Jainn-Jim Lin
INTRODUCTION: Autoantibodies to the alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor and N-methyl-d-aspartate (NMDA) receptor are known to be the causes of autoimmune encephalitis particularly limbic encephalitis. The involvement of the peripheral nervous system is rarely reported. METHODS: We analyzed the serial nerve conduction studies of a previously reported case of anti-AMPA receptor encephalitis, who was presented with conscious disturbance and quadriplegia...
September 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28882707/functional-connectivity-of-large-scale-brain-networks-in-patients-with-anti-nmda-receptor-encephalitis-an-observational-study
#12
Michael Peer, Harald Prüss, Inbal Ben-Dayan, Friedemann Paul, Shahar Arzy, Carsten Finke
BACKGROUND: In anti-NMDA receptor (NMDAR) encephalitis, antibody-mediated dysfunction of NMDARs causes severe neuropsychiatric symptoms, including psychosis, memory deficits, and movement disorders. However, it remains elusive how antibody-mediated NMDAR dysfunction leads to these symptoms, and whether the symptoms arise from impairment in specific brain regions and the interactions between impaired regions. METHODS: In this observational study, we recruited 43 patients with anti-NMDAR encephalitis from a tertiary university hospital and 43 age-matched and sex-matched healthy controls without a history of neurological or psychiatric disorders, who were recruited from the general population of Berlin...
October 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28882191/effects-of-sustained-i-c-v-infusion-of-lupus-csf-and-autoantibodies-on-behavioral-phenotype-and-neuronal-calcium-signaling
#13
Minesh Kapadia, Dunja Bijelić, Hui Zhao, Donglai Ma, Ljudmila Stojanovich, Milena Milošević, Pavle Andjus, Boris Šakić
Systemic lupus erythematosus (SLE) is a potentially fatal autoimmune disease that is often accompanied by brain atrophy and diverse neuropsychiatric manifestations of unknown origin. More recently, it was observed that cerebrospinal fluid (CSF) from patients and lupus-prone mice can be neurotoxic and that acute administration of specific brain-reactive autoantibodies (BRAs) can induce deficits in isolated behavioral tasks. Given the chronic and complex nature of CNS SLE, the current study examines broad behavioral performance and neuronal Ca(2+) signaling in mice receiving a sustained infusion of cerebrospinal fluid (CSF) from CNS SLE patients and putative BRAs (anti-NR2A, anti-ribosomal P, and anti-α-tubulin)...
September 7, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28829986/neurobiology-of-autoimmune-encephalitis
#14
REVIEW
Masaki Fukata, Norihiko Yokoi, Yuko Fukata
Autoimmune encephalitis presenting with amnesia, seizures, and psychosis is highly topical in basic and clinical neuroscience. Recent studies have identified numerous associated autoantibodies, targeting cell-surface synaptic proteins including neurotransmitter receptors (e.g. NMDA receptors (NMDARs)) and a secreted protein, LGI1. In vitro and in vivo analyses of the influence of the autoantibodies have begun to clarify their causal roles. Of particular interest is the generation of recombinant monoclonal antibodies from patients' B cells with anti-NMDAR encephalitis...
August 19, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28683723/case-report-anaesthetic-management-of-radical-gastrectomy-for-gastric-cancer-associated-with-anti-n-methyl-d-aspartate-receptor-encephalitis
#15
Lei Ding, Hongyu Tan, Ziyu Li, Jiafu Ji, Xuejun Song
BACKGROUND: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a rare neurological disorder that is caused by the production of antibodies against NMDARs. As many anaesthetic drugs interact with NMDARs and may worsen the disease and because the disease poses risks, such as cardiovascular events, hyperthermia and respiratory insufficiency, while under anaesthesia, administering anaesthesia to patients with this disorder is clinically challenging. CASE PRESENTATION: A 55-year-old man with gastric cancer associated with anti-NMDAR encephalitis who was diagnosed 8 months prior was admitted to Peking University Cancer Hospital for tumour resection...
July 6, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28680648/treating-refractory-post-herpetic-anti-n-methyl-d-aspartate-receptor-encephalitis-with-rituximab
#16
Christine Strippel, Constanze Mönig, Kristin S Golombeck, Andre Dik, Kathrin Bönte, Stjepana Kovac, Andreas Schulte-Mecklenbeck, Heinz Wiendl, Sven G Meuth, Andreas Johnen, Catharina C Gross, Nico Melzer
Herpes simplex virus-1 has been identified as the trigger factor in certain cases of NMDA-receptor autoimmune encephalitis. We report on a 67-year-old female patient, who was severely affected by post-herpetic NMDA-receptor autoimmune encephalitis. Her symptoms did not improve under methylprednisolone pulse therapy and plasma exchange under acyclovir prophylaxis. She received protein A immunoadsorption and a long-term immunosuppression with rituximab. Under treatment, activated T-cells as well as B- and plasma cells decreased in peripheral blood and cerebrospinal fluid, and anti-NMDA-R IgG titers in serum and cerebrospinal fluid declined with near complete cessation of intrathecal autoantibody synthesis...
July 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28675819/anti-neuronal-autoantibodies-in-both-drug-responsive-and-resistant-focal-seizures-with-unknown-cause
#17
Gokcen Gozubatik-Celik, Cigdem Ozkara, Canan Ulusoy, Aysegul Gunduz, Sakir Delil, Naz Yeni, Erdem Tuzun
BACKGROUND: and Objective Autoimmunity is an emerging field of research in the etiology of different neurological disorders including epilepsy. We aimed to investigate the presence of neuronal autoantibodies in focal epilepsy with unknown cause and their clinical correlates in both drug-responsive and resistant patients. METHOD: Between 2009 and 2010 94 patients were prospectively enrolled, had their antibodies tested and clinically followed." An additional 50 age- and gender-matched controls were also tested for antibodies...
September 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28650064/-a-new-case-of-psychotic-break-as-the-presenting-symptom-of-anti-nmda-receptor-encephalitis-treatment-from-a-neuropsychiatric-approach
#18
P Hernaez-Goni, P Luna-Lario, J Tirapu-Ustarroz
INTRODUCTION: Limbic encephalitis generated by anti-N-methyl D-aspartate (NMDA) receptor antibodies is a severe acute neurological condition that is more prevalent in young females and is associated with an underlying tumour. The appearance of severe initial psychiatric signs and symptoms and the fact that it is accompanied by emotional disorders and severe cognitive impairment make it necessary to reconsider the contributions of neuropsychiatry to the diagnosis, development and treatment of the disease, since these have received little attention from researchers to date...
July 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28626780/igg-specific-cell-based-assay-detects-potentially-pathogenic-musk-abs-in-seronegative-mg
#19
Saif Huda, Patrick Waters, Mark Woodhall, Maria Isabel Leite, Leslie Jacobson, Anna De Rosa, Michelangelo Maestri, Roberta Ricciardi, Jeannine M Heckmann, Angelina Maniaol, Amelia Evoli, Judy Cossins, David Hilton-Jones, Angela Vincent
OBJECTIVE: To increase the detection of MuSK-Abs using a CBA and test their pathogenicity. METHODS: Sera from 69 MuSK-RIA-positive patients with myasthenia gravis (MG) (Definite MuSK-MG), 169 patients negative for MuSK-RIA and AChR-RIA (seronegative MG, SNMG), 35 healthy individuals (healthy controls, HCs), and 16 NMDA receptor-Ab-positive (NMDAR-Ab) disease controls were tested for binding to MuSK on a CBA using different secondary antibodies. RESULTS: Initially, in addition to 18% of SNMG sera, 11% of HC and 19% of NMDAR-Ab sera showed positive binding to MuSK-transfected cells; this low specificity was due to anti-IgG(H+L) detection of IgM bound nonspecifically to MuSK...
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28570322/autoimmune-neurology-of-the-central-nervous-system
#20
W Oliver Tobin, Sean J Pittock
PURPOSE OF REVIEW: This article reviews the rapidly evolving spectrum of autoimmune neurologic disorders with a focus on those that involve the central nervous system, providing an understanding of how to approach the diagnostic workup of patients presenting with central nervous system symptoms or signs that could be immune mediated, either paraneoplastic or idiopathic, to guide therapeutic decision making. RECENT FINDINGS: The past decade has seen a dramatic increase in the discovery of novel neural antibodies and their targets...
June 2017: Continuum: Lifelong Learning in Neurology
keyword
keyword
54283
1
2
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"