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Anti nmdar

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https://www.readbyqxmd.com/read/28944854/effect-of-hippocampal-l%C3%A2-nbp-on-bdnf-and-trkb-expression-and-neurological-function-of-vascular-dementia-rats
#1
Yujing Huang, Zhaohui Li, Guangxian Nan
The pathogenesis of vascular dementia (VD) is associated with neuronal degeneration, apoptosis or necrosis following ischemic brain injury. L‑butylphthalide (L‑NBP), has been demonstrated to exhibit potent anti‑ischemic and anti‑VD effects, however the associated specific mechanism remains to be elucidated. The present study generated a VD rat model, in which the effect of L‑NBP on neurological function and expression levels of brain‑derived neurotrophic factor (BDNF) and tyrosine kinase receptor B (TrkB) were observed...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28938426/a-sustained-activation-of-pancreatic-nmdars-is-a-novel-factor-of-%C3%AE-cell-apoptosis-and-dysfunction
#2
Xiao-Ting Huang, Shao-Jie Yue, Chen Li, Yan-Hong Huang, Qing-Mei Cheng, Xiao-Hong Li, Cai-Xia Hao, Ling-Zhi Wang, Jian-Ping Xu, Ming Ji, Chen Chen, Dan-Dan Feng, Zi-Qiang Luo
Type 2 diabetes, which features β-cell failure, is caused by the decrease of β-cell mass and insulin secretory function. Current treatments fail to halt the decrease of functional β-cell mass. Strategies to prevent β-cell apoptosis and dysfunction are highly desirable. Recently, our group and others have reported that blockade of N-methyl-D-aspartate receptors (NMDARs) in the islets has been proposed to prevent the progress of type 2 diabetes through improving β-cell function. It suggests that a sustained activation of the NMDARs may exhibit deleterious effect on β-cells...
September 4, 2017: Endocrinology
https://www.readbyqxmd.com/read/28935354/anti-n-methyl-d-aspartate-receptor-encephalitis-in-children-of-central-south-china-clinical-features-treatment-influencing-factors-and-outcomes
#3
Ying Wang, Weixi Zhang, Jinghua Yin, Qianjin Lu, Fei Yin, Fang He, Jing Peng
BACKGROUND AND PURPOSE: We analyzed the clinical manifestations of children with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis in Central South China and the factors influencing the effectiveness of treatment. METHODS: A retrospective study of children (0-14years old) with anti-NMDAR encephalitis in Central South China was carried out from March 2014 to November 2016. Demographics, clinical features, treatment, outcome, and the factors influencing the effectiveness of treatment were reviewed...
September 11, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28905135/a-case-of-reversible-anti-nmda-receptor-encephalitis-neuropsychological-and-neuroradiological-features
#4
Carlotta Mutti, Federica Barocco, Lucia Zinno, Anna Negrotti, Marco Spallazzi, Giovanni Pavesi, Simona Gardini, Paolo Caffarra
Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is an autoimmune encephalitis mainly affecting young women. We report a case of a mild paraneoplastic anti-NMDAR encephalitis in a 31-year-old female with an ovarian immature teratoma. The patient exhibited a severe short-term episodic memory impairment and psychiatric symptoms. A detailed diagnostic work-up including complete clinical and laboratory examinations, neuropsychological assessments, and neuroradiological investigations has been done at the onset and during follow-up...
September 13, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28886955/successful-combined-targeting-of-b-and-plasma-cells-in-treatment-refractory-anti-nmdar-encephalitis
#5
Olafur Sveinsson, Mathias Granqvist, Yngve Forslin, Kaj Blennow, Henrik Zetterberg, Fredrik Piehl
We describe an extremely severe case of therapy refractory NMDA receptor encephalitis (NMDAe) in a 26-year-old woman. After rituximab, bilateral oophorectomy, repeated cycles of high dose methylprednisolone and plasma exchange, she received repeated cyclophosphamide, tocilizumab (interleukin-6 inhibitor) and finally bortezomib (plasma cell depleting drug) leading to remission after 204days in intensive care. Two years after disease onset her cognitive functions are still affected, but slowly improving and the cerebral atrophy has been partly reversed...
August 25, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28884051/anti-n-methyl-d-aspartate-receptor-nmdar-encephalitis-in-association-with-ovarian-teratoma
#6
Javaad Ahmad, Muhammad Saad Sohail, Amina Khan, Ahmed H Qavi, Pramod Gaudel, Mehr Zahid, Salman Assad
Anti-N-methyl-D-aspartate-Receptor (NMDAR) encephalitis is an autoimmune disorder with a multifaceted presentation that involves memory deficits, psychiatric symptoms, and autonomic instability. This case report describes the classic presentation of Anti-NMDAR encephalitis and highlights its association with ovarian teratomas. We present a 26 -year-old female who came in with new onset seizures and altered mentation who subsequently developed automatism. Electroencephalograms (EEG) showed left frontal spikes and right temporal delta activity...
July 5, 2017: Curēus
https://www.readbyqxmd.com/read/28882707/functional-connectivity-of-large-scale-brain-networks-in-patients-with-anti-nmda-receptor-encephalitis-an-observational-study
#7
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...
September 4, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28878050/antibody-associated-cns-syndromes-without-signs-of-inflammation-in-the-elderly
#8
Domingo Escudero, Mar Guasp, Helena Ariño, Carles Gaig, Eugenia Martínez-Hernández, Josep Dalmau, Francesc Graus
OBJECTIVE: To report the CNS syndromes of patients ≥60 years of age with antibodies against neuronal surface antigens but no evidence of brain MRI and CSF inflammatory changes. METHODS: This was a retrospective clinical analysis of patients with antibodies against neuronal surface antigens who fulfilled 3 criteria: age ≥60 years, no inflammatory abnormalities in brain MRI, and no CSF pleocytosis. Antibodies were determined with reported techniques. RESULTS: Among 155 patients ≥60 years of age with neurologic syndromes related to antibodies against neuronal surface antigens, 35 (22...
September 6, 2017: Neurology
https://www.readbyqxmd.com/read/28859632/case-report-of-anti-n-methyl-d-aspartate-receptor-encephalitis-in-a-middle-aged-woman-with-a-long-history-of-major-depressive-disorder
#9
Xia Rong, Zhenzhen Xiong, Bingrong Cao, Juan Chen, Mingli Li, Zhe Li
BACKGROUND: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune disease involving antibodies against the NR1 subunits of NMDARs. The disease shows variable clinical presentation, and involves new-onset acute psychotic symptoms, making it difficult to differentiate from major depressive disorder with psychotic symptoms. Potential associations between this autoimmune disorder and onset or progression of major depressive disorder remains unclear. CASE PRESENTATION: We present a rare case of a patient who had both major depressive disorder and anti-NMDAR encephalitis and in whom the encephalitis initially went undetected...
August 31, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28829986/neurobiology-of-autoimmune-encephalitis
#10
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/28825789/multifunctional-analogs-of-kynurenic-acid-for-the-treatment-of-alzheimer-s-disease-synthesis-pharmacology-and-molecular-modeling-studies
#11
Girdhar Singh Deora, Srinivas Kantham, Stephen Chan, Satish N Dighe, Suresh K Veliyath, Gawain McColl, Marie-Odile Parat, Ross P McGeary, Benjamin P Ross
We report the synthesis and pharmacological investigation of analogs of the endogenous molecule kynurenic acid (KYNA) as multifunctional agents for the treatment of Alzheimer's disease (AD). Synthesized KYNA analogs were tested for their N-methyl-d-aspartate (NMDA) receptor binding, mGluR5 binding and function, acetylcholinesterase (AChE) inhibition, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, interference with the amyloid β peptide (Aβ) fibrillation process, and protection against Aβ-induced toxicity in transgenic Caenorhabditis elegans strain GMC101 expressing full-length Aβ42...
September 8, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28780967/cell-and-single-molecule-based-methods-to-detect-anti-n-methyl-d-aspartate-receptor-autoantibodies-in-patients-with-first-episode-psychosis-from-the-optimise-project
#12
Julie Jézéquel, Véronique Rogemond, Thomas Pollak, Marilyn Lepleux, Leslie Jacobson, Hélène Gréa, Conrad Iyegbe, Rene Kahn, Philip McGuire, Angela Vincent, Jérôme Honnorat, Marion Leboyer, Laurent Groc
Circulating autoantibodies against glutamatergic N-methyl-D-aspartate receptor (NMDAR) have been reported in a proportion of patients with psychotic disorders, raising hopes for more appropriate treatment for these antibody-positive patients. However, the prevalence of circulating autoantibodies against glutamatergic NMDAR in psychotic disorders remains controversial, with detection prevalence rates and immunoglobulin classes varying considerably between studies, perhaps because of different detection methods...
July 6, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28780398/absence-of-serum-anti-nmdar-antibodies-in-anti-nmdar-encephalitis-mother-predicts-having-healthy-newborn
#13
Akihiro Ueda, Ryunosuke Nagao, Toshiki Maeda, Kouichi Kikuchi, Kenichiro Murate, Yoshiki Niimi, Sayuri Shima, Tatsuro Mutoh
No abstract text is available yet for this article.
July 29, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28777260/persistence-of-parenchymal-and-perivascular-t-cells-in-treatment-refractory-anti-n-methyl-d-aspartate-receptor-encephalitis
#14
Alexander Filatenkov, Timothy E Richardson, Elena Daoud, Sarah F Johnson-Welch, Denise M Ramirez, Jose Torrealba, Benjamin Greenberg, Nancy L Monson, Veena Rajaram
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune disease mediated by IgG1 or IgG3 antibodies to the GluN1 subunit of the NMDAR, resulting in downregulation of NMDARs. Early diagnosis, prompt reduction of anti-NMDAR antibodies, and removal of associated ovarian tumors when identified are important drivers of prognosis. Immunohistochemical studies were carried out to evaluate B cell, plasma cell, and T-cell infiltrates in the brain of a 3-year-old patient with anti-NMDAR encephalitis who failed to show improvement after plasma exchange and Rituximab treatment...
September 27, 2017: Neuroreport
https://www.readbyqxmd.com/read/28770118/new-onset-insomnia-in-a-pediatric-patient-a-case-of-anti-nmda-receptor-encephalitis
#15
Tamar N Goldberg, Michael F Cellucci
Anti-NMDAR encephalitis is becoming more widely recognized as a cause of encephalopathy in both adults and children. Certain clinical features such as mood lability, movement disorders, speech dysfunction, seizures, and autonomic instability in a pediatric patient should prompt immediate concern and evaluation for autoimmune encephalitis among providers. We present the case of a pediatric patient with anti-NMDAR encephalitis in which the symptom prompting medical evaluation was insomnia. Insomnia has not previously been emphasized in the literature as a presenting feature of this disease in children and has a broad differential...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28736276/b-cells-as-therapeutic-targets-in-neuro-inflammatory-diseases
#16
Reinhard Hohlfeld
B cells are an emerging therapeutic target in neuroinflammatory diseases. The anti-CD20 monoclonal antibody ocrelizumab was recently approved in the US as the first B-cell targeting immunomodulatory treatment for relapsing-remitting MS and primary progressive MS. In autoantibody-associated demyelinating syndromes such as neuromyelitis optica (NMO) and in myelin-oligodendrocyte-glycoprotein-(MOG)-autoantibody-associated encephalomyelitis, B-cells are a logical target based on the pathogenesis of these antibody-mediated disorders...
July 21, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28730861/comparative-outcomes-in-children-and-adults-with-anti-n-methyl-d-aspartate-anti-nmda-receptor-encephalitis
#17
Eliza Gordon-Lipkin, Anusha K Yeshokumar, Deanna Saylor, Ana Arenivas, John C Probasco
This study compared neurologic disability and adaptive function in children and adults >1 year following anti- N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis diagnosis. Retrospective record review identified 12 patients with anti-NMDAR encephalitis. At last follow-up, all surviving patients had "good" modified Rankin Score (0-2). Four children, 6 adults, and their families participated in a telephone interview. Median duration since diagnosis was similar for children (2.42 years, interquartile range 2...
October 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28720858/gsk-3%C3%AE-deletion-in-dentate-gyrus-excitatory-neuron-impairs-synaptic-plasticity-and-memory
#18
Enjie Liu, Ao-Ji Xie, Qiuzhi Zhou, Mengzhu Li, Shujuan Zhang, Shihong Li, Weijin Wang, Xiaochuan Wang, Qun Wang, Jian-Zhi Wang
Increasing evidence suggests that glycogen synthase kinase-3β (GSK-3β) plays a crucial role in neurodegenerative/psychiatric disorders, while pan-neural knockout of GSK-3β also shows detrimental effects. Currently, the function of GSK-3β in specific type of neurons is elusive. Here, we infused AAV-CaMKII-Cre-2A-eGFP into GSK-3β(lox/lox) mice to selectively delete the kinase in excitatory neurons of hippocampal dentate gyrus (DG), and studied the effects on cognitive/psychiatric behaviors and the molecular mechanisms...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698711/anti-n-methyl-d-aspartate-receptor-encephalitis-a-severe-potentially-reversible-autoimmune-encephalitis
#19
REVIEW
Cai-Yun Liu, Jie Zhu, Xiang-Yu Zheng, Chi Ma, Xu Wang
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is potentially lethal, but it is also a treatable autoimmune disorder characterized by prominent psychiatric and neurologic symptoms. It is often accompanied with teratoma or other neoplasm, especially in female patients. Anti-NMDAR antibodies in cerebrospinal fluid (CSF) and serum are characteristic features of the disease, thereby suggesting a pathogenic role in the disease. Here, we summarize recent studies that have clearly documented that both clinical manifestations and the antibodies may contribute to early diagnosis and multidisciplinary care...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28695335/glutamatergic-system-and-mtor-signaling-pathway-participate-in-the-antidepressant-like-effect-of-inosine-in-the-tail-suspension-test
#20
Filipe Marques Gonçalves, Vivian Binder Neis, Débora Kurrle Rieger, Tanara V Peres, Mark William Lopes, Isabella A Heinrich, Ana Paula Costa, Ana Lúcia S Rodrigues, Manuella P Kaster, Rodrigo Bainy Leal
Glutamatergic system and mTOR signaling pathway have been proposed to be important targets for pharmacological treatment of major depressive disorder. Previous studies have shown that inosine, an endogenous purine, is able to exert a remarkable antidepressant-like effect in mice. Nevertheless, the role of glutamatergic system and mTOR in this effect was not previously determined. This study was designed to investigate the possible modulation of NMDA receptors (NMDAR), AMPA receptors (AMPAR) and mTOR complex 1 (mTORC1) signaling pathway in the inosine anti-immobility effect in the tail suspension test (TST) in mice...
July 10, 2017: Journal of Neural Transmission
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