keyword
MENU ▼
Read by QxMD icon Read
search

N-methyl-D-aspartate

keyword
https://www.readbyqxmd.com/read/28527387/analysis-of-electroencephalogram-characteristics-of-anti-nmda-receptor-encephalitis-patients-in-china
#1
Yan Zhang, Gang Liu, Meng Di Jiang, Li Ping Li, Ying Ying Su
OBJECTIVE: To explore the characteristics of electroencephalogram (EEG) in patients with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis. METHODS: Anti-NMDAR encephalitis patients admitted to the Department of Neurology between January 2012 and June 2016 were enrolled. All patients underwent electroencephalogram (EEG) at least once in the disease peak stage, and received tumor screening, symptomatic therapy, and immunotherapy. Patients received outcome evaluation every 6months after the immunotherapy, and modified Rankin scale (mRS) 0-2 was defined as favorable outcome...
May 4, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28527262/-autoimmune-encephalitis-associated-to-antibodies-against-the-n-methyl-d-aspartate-receptor-report-of-two-cases
#2
José Bustos, Yasmin Sánchez, Jhon Medina, Rommy Olivieri, Julián Mojica, Johan Ortiz
Anti-N-methyl-D-aspartate receptor encephalitis is a neurological syndrome that is more common in young women and is often associated with ovarian teratoma. It is characterized by acute general unspecific symptoms that evolve to neurological deterioration, psychosis and seizures. In its more advanced stage it is associated with abnormal movements and dysautonomia.We report two cases in women of 23 and 12 years of age. Given its low incidence, we present the clinical exercise that led to their diagnoses and the treatment options employed...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526411/jnj10181457-a-histamine-h3-receptor-inverse-agonist-regulates-in-vivo-microglial-functions-and-improves-depression-like-behaviours-in-mice
#3
Tomomitsu Iida, Takeo Yoshikawa, Anikó Kárpáti, Takuro Matsuzawa, Haruna Kitano, Asuka Mogi, Ryuichi Harada, Fumito Naganuma, Tadaho Nakamura, Kazuhiko Yanai
Brain histamine acts as a neurotransmitter and regulates various physiological functions, such as learning and memory, sleep-wake cycles, and appetite regulation. We have recently shown that histamine H3 receptor (H3R) is expressed in primary mouse microglia and has a strong influence on critical functions in microglia, including chemotaxis, phagocytosis, and cytokine secretion in vitro. However, the importance of H3R in microglial activity in vivo remains unknown. Here, we examined the effects of JNJ10181457 (JNJ), a selective and potent H3R inverse agonist, on microglial functions ex vivo and in vivo...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28524267/synaptic-activity-suppresses-expression-of-neurogenic-differentiation-factor-2-in-an-nmda-receptor-dependent-manner
#4
Fading Chen, Benjamin J Hall
Neurogenic differentiation factor 2 (NeuroD2) is a highly expressed transcription factor in the developing central nervous system. In newborn neurons, NeuroD2-mediated gene expression promotes differentiation, maturation, and survival. In addition to these early, cell-intrinsic developmental processes, NeuroD2 in post-mitotic neurons also regulates synapse growth and ion channel expression to control excitability. While NeuroD2 transactivation can be induced in an activity-dependent manner, little is known about how expression of NeuroD2 itself is regulated...
May 19, 2017: Synapse
https://www.readbyqxmd.com/read/28515935/methotrexate-encephalopathy-two-cases-in-adult-cancer-patients-who-recovered-with-pathophysiologically-based-therapy
#5
Shodeinde A Coker, David A Pastel, Melissa C Davis, Elizabeth M Bengtson, Camilo E Fadul, Lionel D Lewis
BACKGROUND/OBJECTIVES: Neurotoxicity is a serious and sometimes fatal adverse effect that can occur following methotrexate treatment. We describe two adult patients with hematological malignancies with methotrexate encephalopathy who recovered with dextromethorphan therapy. RESULTS: Case 1: A 24-year-old male with acute lymphoblastic leukemia developed the acute onset of bilateral facial weakness and slurred speech after his first treatment with high-dose intravenous methotrexate...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28515681/the-activity-induced-long-non-coding-rna-meg3-modulates-ampa-receptor-surface-expression-in-primary-cortical-neurons
#6
Men C Tan, Jocelyn Widagdo, Yu Q Chau, Tianyi Zhu, Justin J-L Wong, Allen Cheung, Victor Anggono
Transcription of new RNA is crucial for maintaining synaptic plasticity, learning and memory. Although the importance of synaptic plasticity-related messenger RNAs (mRNAs) is well established, the role of a large group of long non-coding RNAs (lncRNAs) in long-term potentiation (LTP) is not known. In this study, we demonstrated the expression of a lncRNA cluster, namely maternally expressed gene 3 (Meg3), retrotransposon-like gene 1-anti-sense (Rtl1-AS), Meg8 and Meg9, which is located in the maternally imprinted Dlk1-Dio3 region on mouse chromosome 12qF1, in primary cortical neurons following glycine stimulation in an N-Methyl-D-aspartate receptor (NMDAR)-dependent manner...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28515556/subacute-noninfective-inflammatory-encephalopathy-our-experience-and-diagnostic-problems
#7
Sadanandavalli Retnaswami Chandra, Lakshminarayanapuram Gopal Viswanathan, Dodmalur Malikarjuna Sindhu, Anupama Ramakanth Pai
INTRODUCTION: Immune dysregulation associated encephalopathies present with significant psychiatric manifestations and only a few soft neurological and general systemic features. They are generally resistant to treatment with psychiatric medications. Generalized orthostatic myoclonus and faciobrachial dystonic seizures are mistaken as Creutzfeldt-Jakob disease and subacute sclerosing panencephalitis. PATIENTS AND METHODS: Forty-two patients seen during 2010-2015 and diagnosed as noninfective encephalopathy were analyzed...
March 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28513099/syntheses-analytical-and-pharmacological-characterizations-of-the-legal-high-4-1-3-methoxyphenyl-cyclohexyl-morpholine-3-meo-pcmo-and-analogues
#8
Tristan Colestock, Jason Wallach, Matt Mansi, Nadine Filemban, Hamilton Morris, Simon P Elliott, Folker Westphal, Simon D Brandt, Adeboye Adejare
New psychoactive substances (NPS) are commonly referred to as "research chemicals", "designer drugs" or "legal highs." One NPS class is represented by dissociative anesthetics, which include analogues of the arylcyclohexylamine phencyclidine (PCP), ketamine, and diphenidine. A recent addition to the NPS market was 4-[1-(3-methoxyphenyl)cyclohexyl]morpholine (3-MeO-PCMo), a morpholine analogue of 3-MeO-PCP. Although suspected to have dissociative effects in users, information about its pharmacological profile is not available...
May 16, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28512860/intrinsic-cellular-and-molecular-properties-of-in-vivo-hippocampal-synaptic-plasticity-are-altered-in-the-absence-of-key-synaptic-matrix-molecules
#9
Stephan Jansen, Christine Gottschling, Andreas Faissner, Denise Manahan-Vaughan
Hippocampal synaptic plasticity comprises a key cellular mechanism for information storage. In the hippocampus, both long-term potentiation (LTP) and long-term depression (LTD) are triggered by synaptic Ca(2+) -elevations that are typically mediated by the opening of voltage-gated cation channels, such as N-methyl-D-aspartate receptors (NMDAR), in the postsynaptic density. The integrity of the post-synaptic density is ensured by the extracellular matrix (ECM). Here, we explored whether synaptic plasticity is affected in adult behaving mice that lack the ECM proteins brevican, neurocan, tenascin-C and tenascin-R (TG)...
May 17, 2017: Hippocampus
https://www.readbyqxmd.com/read/28511693/antagonistic-action-on-nmda-glun2b-mediated-currents-of-two-peptides-that-were-conantokin-g-structure-based-designed
#10
Edwin A Reyes-Guzman, Nohora Vega-Castro, Edgar A Reyes-Montaño, Esperanza Recio-Pinto
BACKGROUND: The GluN2B subunit of the N-methyl-D-aspartate receptor (NMDAr) modulates many physiological processes including learning, memory, and pain. Excessive increase in NMDAr/GluN2B activity has been associated with various disorders such neuropathic pain and neuronal death following hypoxia. Thus there is an interest in identifying NMDAr antagonists that interact specifically with the GluN2B subunit. Recently based on structural analysis between the GluN2B subunit and conantokin-G, a toxin that interacts selectively with the GluN2B subunit, we designed various peptides that are predicted to act as NMDAr antagonists by interacting with the GluN2B subunit...
May 16, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28511005/characterization-of-l-theanine-excitatory-actions-on-hippocampal-neurons-towards-the-generation-of-novel-n-methyl-d-aspartate-receptor-modulators-based-on-its-backbone
#11
Fatiha Sebih, Matthieu Rousset, Salima Bellahouel, Marc Rolland, Marie Celeste de Jesus Ferreira, Janique Guiramand, Catherine Cohen-Solal, Gérard Barbanel, Thierry Cens, Mohammed Abouazza, Adrien Tassou, Maud Gratuze, Céline Meunier, Pierre Charnet, Michel Vignes, Valérie Rolland
L-Theanine (or L-γ-N-ethyl-glutamine) is the major amino acid found in Camellia sinensis. It has received much attention because of its pleiotropic physiological and pharmacological activities leading to health benefits in humans, especially. We describe here a new, easy, efficient and environmentally-friendly chemical synthesis of L-Theanine and L-γ-N-propyl-Gln and their corresponding D isomers. L-Theanine, and its derivatives obtained so far, exhibited partial co-agonistic action at N-methyl-D-aspartate (NMDA) receptors, with no detectable agonist effect at other glutamate receptors, on cultured hippocampal neurons...
May 16, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28510125/molecular-design-of-proneurogenic-and-neuroprotective-compounds-allosteric-nmda-receptor-modulators
#12
D S Karlov, E V Radchenko, V A Palyulin, N S Zefirov
N-Methyl-D-aspartic acid (NMDA) receptor is a promising target for treatment of neurodegenerative diseases and other brain disorders as well as for designing proneurogenic compounds able to stimulate neurogenesis in adult brain. We analyzed the structure of the binding site of negative allosteric modulators in the amino-terminal domain of the NMDA receptor and identified possible modes of their binding as well as performed molecular design of new modulators that significantly differ from the known ones in structure and binding mode...
March 2017: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28508887/an-evolutionary-switch-in-nd2-enables-src-kinase-regulation-of-nmda-receptors
#13
David P Scanlon, Alaji Bah, Mickaël Krzeminski, Wenbo Zhang, Heather L Leduc-Pessah, Yi Na Dong, Julie D Forman-Kay, Michael W Salter
The non-receptor tyrosine kinase Src is a key signalling hub for upregulating the function of N-methyl D-aspartate receptors (NMDARs). Src is anchored within the NMDAR complex via NADH dehydrogenase subunit 2 (ND2), a mitochondrially encoded adaptor protein. The interacting regions between Src and ND2 have been broadly identified, but the interaction between ND2 and the NMDAR has remained elusive. Here we generate a homology model of ND2 and dock it onto the NMDAR via the transmembrane domain of GluN1. This interaction is enabled by the evolutionary loss of three helices in bilaterian ND2 proteins compared to their ancestral homologues...
May 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28508035/flashing-lights-induce-prolonged-distortions-in-visual-cortical-responses-and-visual-perception
#14
Genki Minamisawa, Kenta Funayama, Nobuyoshi Matsumoto, Norio Matsuki, Yuji Ikegaya
The primary sensory neocortex generates an internal representation of the environment, and its circuit reorganization is thought to lead to a modification of sensory perception. This reorganization occurs primarily through activity-dependent plasticity and has been well documented in animals during early developmental stages. Here, we describe a new method for the noninvasive induction of long-term plasticity in the mature brain: simple transient visual stimuli (i.e., flashing lights) can be used to induce prolonged modifications in visual cortical processing and visually driven behaviors...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28506504/anti-n-methyl-d-aspartate-receptor-encephalitis-appearing-as-a-new-onset-psychosis-disease-course-in-children-and-adolescents-within-the-california-encephalitis-project
#15
Mary Gable, Carol Glaser
BACKGROUND: Given that psychiatric symptoms are common, not only during the course of the illness but also on presentation, in children and adolescents with anti-N-methyl-d-aspartate receptor encephalitis, it is important that practitioners in the field of child and adolescent psychiatry possess an adequate understanding of the clinical features and potential treatment of this disease. We describe the clinical characteristics of 24 patients who presented to the California Encephalitis Project...
February 4, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28506503/extended-clinical-spectrum-of-anti-n-methyl-d-aspartate-receptor-encephalitis-in-children-a-case-series
#16
Ajay Goenka, Vivek Jain, Hiroki Nariai, Alfred Spiro, Mitchell Steinschneider
OBJECTIVE: There is a wide spectrum of clinical manifestations in children with anti-N-methyl-d-aspartate (NMDA) receptor antibody encephalitis from two different health care settings. METHODS: We describe our experience with 13 patients (median age, 7 years; range, 5 months to 19 years) presenting to tertiary referral centers in India and the United States. RESULTS: Initial manifestations were neurological (seizures or movement disorders) in eight patients, and psychiatric (e...
April 5, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28505381/insulin-resistance-disrupts-the-interaction-between-akt-and-the-nmda-receptor-and-the-inactivation-of-the-camkiv-creb-pathway-in-minimal-hepatic-encephalopathy
#17
Saidan Ding, Weishan Zhuge, Jianjing Yang, Fangfang Wen, Zhu Xu, Xuebao Wang, Qichuan Zhuge
Hepatic cirrhosis-induced Minimal hepatic encephalopathy (MHE) has been characterized for cognitive dysfunction and central nervous system (CNS) insulin resistance (IR) has been acknowledged to be closely correlated with cognitive impairment while hepatic cirrhosis has been recognized to induce IR . Thus, this study aimed to investigate whether CNS IR occurred in MHE and induced MHE, as well as the underlying mechanism. We found IR in the MHE rats, an especially decreased level of the insulin receptor (InsR), and an increased serine phosphorylation of IRS1 in CNS...
May 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28503332/chronic-neuropsychological-sequelae-in-a-patient-with-nontumorous-anti-nmda-receptor-encephalitis
#18
Dong Y Han, Lisa M Koehl, Aarti Patel, Zhengqiu Zhou, Sarah Phillips, Siddharth Kapoor
Anti-N-methyl-D-aspartate receptor encephalitis is a neurological, autoimmune disorder tightly conceptualized only as recently as the mid-2000s. It presents itself in a combination of psychiatric, neurological, and autonomic features. We observe a unique case with probable earlier episode (prior to the mid-2000s conceptualization of the disease) and a later relapse, accompanying a comprehensive neuropsychological profile tracked after the relapse and subsequent improvement. Neurocognitive findings revealed residual frontal deficits with mood changes even in the state after plasmapheresis...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28501325/a-role-for-nmdar-dependent-cerebellar-plasticity-in-adaptive-control-of-saccades-in-humans
#19
S Colnaghi, P Colagiorgio, M Versino, G Koch, E D'Angelo, S Ramat
BACKGROUND: Saccade pulse amplitude adaptation is mediated by the dorsal cerebellar vermis and fastigial nucleus. Long-term depression at the parallel fibre-Purkinjie cell synapses has been suggested to provide a cellular mechanism for the corresponding learning process. The mechanisms and sites of this plasticity, however, are still debated. OBJECTIVE: To test the role of cerebellar plasticity phenomena on adaptive saccade control. METHODS: We evaluated the effect of continuous theta burst stimulation (cTBS) over the posterior vermis on saccade amplitude adaptation and spontaneous recovery of the initial response...
May 5, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28500838/rnai-targeting-nogo-receptor-enhanced-survival-and-proliferation-of-murine-retinal-ganglion-cells-during-n-methyl-d-aspartateinduced-optic-nerve-crush
#20
Kun Zeng, Bo Zhong, Xiao Li Shen, Min Fang, Bao Tao Lin, Da Hui Ma
We investigated the effects of lentivirus-mediated RNAi targeting of Nogo Receptor (NgR) on the proliferation and survival of murine retinal ganglion cells (mRGCs) in vitro and in vivo. Cultured mRGCs and C57BL/6 male mice were divided into 4 experimental groups: blank, model [100 μM N-methyl-D-aspartate (NMDA)], nscRNA (100 μM NMDA+ nscRNA vectors) and siNgR (100 μM NMDA+ siNgR vectors). CCK-8 and flow cytometry analyses revealed that silencing NgR enhanced proliferation, cell cycling and survival of NMDA-treated mRGCs...
April 21, 2017: Oncotarget
keyword
keyword
116464
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"