Results 31 to 40 of about 716,780 (343)

Central Role of Glutamate Metabolism in the Maintenance of Nitrogen Homeostasis in Normal and Hyperammonemic Brain

Biomolecules, 2016
Glutamate is present in the brain at an average concentration—typically 10–12 mM—far in excess of those of other amino acids. In glutamate-containing vesicles in the brain, the concentration of glutamate may even exceed 100 mM. Yet because glutamate is a
Arthur J. L. Cooper, Thomas M. Jeitner
doaj   +1 more source

Metabolite Alterations in Adults With Schizophrenia, First Degree Relatives, and Healthy Controls: A Multi-Region 7T MRS Study

Frontiers in Psychiatry, 2021
Proton magnetic resonance spectroscopy (MRS) studies in schizophrenia have shown altered GABAergic, glutamatergic, and bioenergetic pathways, but if these abnormalities are brain region or illness-stage specific is largely unknown.
S. Andrea Wijtenburg, Min Wang, Stephanie A. Korenic, Shuo Chen, Peter B. Barker, Peter B. Barker, Laura M. Rowland   +6 more
doaj   +1 more source

Augmented Cystine–Glutamate Exchange by Pituitary Adenylate Cyclase-activating Polypeptide Signaling via the VPAC1 Receptor [PDF]

, 2014
In the central nervous system, cystine import in exchange for glutamate through system xc- is critical for the production of the antioxidant glutathione by astrocytes, as well as the maintenance of extracellular glutamate. Therefore, regulation of system
Arimura, Ashur-Fabian, Asztely, Baker, Baker, Baker, Bannai, Bannai, Barger, Berman, Brenneman, Brown, Chen, Choi, Costa, Diamond, Dickson, Dugan, Fahrenkrug, Figiel, Fogal, Ghatei, Grant, Grant, Grimaldi, Grimaldi, Groot, Hannibal, Hannibal, Hashimoto, Jackman, Johnson, Joo, Joo, Knackstedt, Kranich, Kupchik, Lewerenz, Liu, Liu, Liu, Liu, Lobner, Macdonald, Magistretti, Martin, Masmoudi-Kouki, Masmoudi-Kouki, Moran, Morio, Murphy, Park, Piani, Pow, Rush, Rush, Sagara, Said, Sato, Schwartz, Seaborn, Shih, Shintani, Sontheimer, Suh, Suzuki, Tatsuno, Tatsuno, Vaudry, Vaudry, Yaka, Ye, Yuhara, Zheng, Zhou   +74 more
core   +2 more sources

Glutamate Taste: Discrimination between the Tastes of Glutamate Agonists and Monosodium Glutamate in Rats [PDF]

Chemical Senses, 2004
Taste aversion studies have demonstrated that rats conditioned to avoid monosodium glutamate (MSG) with amiloride added to reduce the intensity of the sodium component of MSG taste, generalize this aversion to aspartic acid and to L-AP4, but not to ionotropic glutamate receptor agonists.
Delay, Eugene R., Sewczak, G. M., Stapleton, J. R., Roper, S. D.   +3 more
openaire   +3 more sources

Protective Effect of Osmundacetone against Neurological Cell Death Caused by Oxidative Glutamate Toxicity

Biomolecules, 2021
Oxidative stress is one of the main causes of brain cell death in neurological disorders. The use of natural antioxidants to maintain redox homeostasis contributes to alleviating neurodegeneration. Glutamate is an excitatory neurotransmitter that plays a
Tuy An Trinh, Young Hye Seo, Sungyoul Choi, Jun Lee, Ki Sung Kang   +4 more
doaj   +1 more source

Carnosic Acid Shows Higher Neuroprotective Efficiency than Edaravone or Ebselen in In Vitro Models of Neuronal Cell Damage

Molecules, 2023
This study compared the neuroprotective efficacy of three antioxidants—the plant-derived carnosic acid (CA), and two synthetic free radical scavengers: edaravone (ED) and ebselen (EB)—in in vitro models of neuronal cell damage.
Danuta Jantas, Piotr Warszyński, Władysław Lasoń   +2 more
doaj   +1 more source

Locally-Induced CaMKII Translocation Requires Nucleotide Binding

Frontiers in Synaptic Neuroscience, 2020
Calcium-calmodulin-dependent protein kinase (CaMKII) is a molecule involved in several cell processes including plasticity related to learning and memory. Activation of NMDA-type glutamate receptors results in translocation of CaMKII to synapses. However,
Zachary T. Fitzgerald, Jacqueline K. Rose   +1 more
doaj   +1 more source

Glutamate transporter control of ambient glutamate levels

Neurochemistry International, 2014
Accurate knowledge of the ambient extracellular glutamate concentration in brain is required for understanding its potential impacts on tonic and phasic receptor signaling. Estimates of ambient glutamate based on microdialysis measurements are generally in the range of ∼2-10μM, approximately 100-fold higher than estimates based on electrophysiological ...
Weinan Sun, Leonid V. Kalachev, Denis Shchepakin, Michael P. Kavanaugh   +3 more
openaire   +3 more sources

Homozygosity for a missense mutation in the 67 kDa isoform of glutamate decarboxylase in a family with autosomal recessive spastic cerebral palsy: parallels with Stiff-Person Syndrome and other movement disorders [PDF]

, 2004
Background Cerebral palsy (CP) is an heterogeneous group of neurological disorders of movement and/or posture, with an estimated incidence of 1 in 1000 live births.
A Lernmark, Alex F Markham, B Hagberg, BG Condie, C Geoffrey Woods, CL Fawer, Clare N Lynex, CM Wiles, David T Bonthon, DF Bu, DF Bu, DJ Stone, DL Martin, DL Martin, DP McHale, DP McHale, E Maestrini, Eamonn R Maher, F Sandbrink, G Gaffney, GE Homanics, H Asada, H Mitoma, HM Meinck, I Hughes, Ian M Carr, J Kim, J Volpe, Jack P Leek, JO Forfar, JS Lappalainen, K Burk, K Dinkel, KCK Kuban, KH Gustavson, LM Dubowitz, LM Levy, M Baraitser, M Solimena, M Solimena, MC Dalakas, MG Erlander, MH Butler, N Laprade, N Paneth, POD Pharoah, PS Eicher, PT Bosma, Rajgopal Achuthan, RW Bond, S Bundey, S Chattopadhyay, S Kono, S Kure, S Mitchell, SD Chessler, Simon Mitchell, V Cormier-Daire   +57 more
core   +2 more sources

Schizandrin Protects Primary Rat Cortical Cell Cultures from Glutamate-Induced Apoptosis by Inhibiting Activation of the MAPK Family and the Mitochondria Dependent Pathway

Molecules, 2012
Glutamate-induced excitotoxicity has been implicated in a variety of neuronal degenerative disorders. In the present study, we investigated the possible neuroprotective effects of schizandrin against apoptosis of primary cultured rat cortical cells ...
Wen-Huang Peng, Ming-Tsuen Hsieh, Fan-Shiu Tsai, Li-Wei Lin, Jiin-Cherng Yen, Jung Chao, Meng-Shiou Lee, Hao-Yuan Cheng   +7 more
doaj   +1 more source