keyword
MENU ▼
Read by QxMD icon Read
search

Glutamate

keyword
https://www.readbyqxmd.com/read/27914294/selective-agonism-of-mglu8-receptors-by-s-3-4-dicarboxyphenylglycine-does-not-affect-sleep-stages-in-the-rat
#1
María Cavas, Gianluigi Scesa, Mercedes Martín-López, José Francisco Navarro
BACKGROUND: Metabotropic glutamate receptors (mGlu) play a role in a number of physiological processes and behaviors, as well as in certain pathological conditions and diseases. New drugs targetting mGlu receptors are being developed with treatment purposes. Recent data indicates that glutamate is involved in sleep, and pharmacological manipulation of distinct subtypes of mGlu receptors affect sleep. Here the consequences of selective pharmacological agonism of mGlu8 receptor upon sleep and wakefulness are explored for the first time...
September 22, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27914199/filamin-a-synaptic-organizer-in-drosophila-determines-glutamate-receptor-composition-and-membrane-growth
#2
GaYoung Lee, Thomas L Schwarz
Filamin is a scaffolding protein that functions in many cells as an actin-crosslinker. FLN90, an isoform of the Drosophila ortholog Filamin/cheerio that lacks the actin-binding domain, is here shown to govern the growth of postsynaptic membrane folds and the composition of glutamate receptor clusters at the larval neuromuscular junction. Genetic and biochemical analyses revealed that FLN90 is present surrounding synaptic boutons. FLN90 is required in the muscle for localization of the kinase dPak and, downstream of dPak, for localization of the GTPase Ral and the exocyst complex to this region...
December 3, 2016: ELife
https://www.readbyqxmd.com/read/27914124/atypical-neonatal-marfan-syndrome-with-p-glu1073lys-mutation-of-fbn1-the-first-case-in-korea
#3
Ju Sun Heo, Joo Young Song, Eun Young Choi, Eun Hee Kim, Ji Hee Kim, So Eun Park, Ji Hyun Jeon
Neonatal Marfan syndrome (nMFS) is considered to be on the most severe end of the spectrum of type I fibrillinopathies. The common features of nMFS include ascending aortic dilatation, severe mitral and/or tricuspid valve insufficiency, ectopia lentis, arachnodactyly, joint contractures, crumpled ear, loose skin, and pulmonary emphysema.We describe a newborn male diagnosed with nMFS. He presented several atypical features, such as diaphragmatic eventration, severe hydronephrosis with hydroureter, and dilated cisterna magna...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27913968/post-ganglionic-autonomic-neuropathy-associated-with-anti-glutamic-acid-decarboxylase-antibodies
#4
E Fileccia, R Rinaldi, R Liguori, A Incensi, R D'Angelo, M P Giannoccaro, V Donadio
PURPOSE: Antibodies to glutamic acid decarboxylase (GAD-Abs) have been associated with several conditions, rarely involving the autonomic nervous system. Here, we describe two patients complaining of autonomic symptoms in whom a post-ganglionic autonomic neuropathy has been demonstrated in association with significantly elevated serum and CSF GAD-Abs levels. METHODS: Patients underwent nerve conduction studies, sympathetic skin response testing, evaluation of autonomic control of the cardiovascular system and skin biopsy...
December 2, 2016: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/27913854/the-role-of-macromolecules-in-the-formation-of-kidney-stones
#5
REVIEW
Jeffrey D Rimer, Ann M Kolbach-Mandel, Michael D Ward, Jeffrey A Wesson
The formation of crystal aggregates, one of the critical processes in kidney stone pathogenesis, involves interactions between crystals (predominantly calcium oxalate monohydrate, COM) and urinary constituents (e.g., proteins), which serve as an adhesive "glue" between crystals in stones. To develop a better understanding of the protein-crystal interactions that lead to crystal aggregation, we have measured the effect of model proteins on bulk COM crystal properties as well as their adsorption on crystal surfaces using three synthetic polyanions: poly(aspartic acid) (polyD), poly(glutamic acid) (polyE), and poly(acrylic acid) (polyAA)...
December 2, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27913829/glutamate-fermentation-2-mechanism-of-l-glutamate-overproduction-in-corynebacterium-glutamicum
#6
Takashi Hirasawa, Masaaki Wachi
The nonpathogenic coryneform bacterium, Corynebacterium glutamicum, was isolated as an L-glutamate-overproducing microorganism by Japanese researchers and is currently utilized in various amino acid fermentation processes. L-Glutamate production by C. glutamicum is induced by limitation of biotin and addition of fatty acid ester surfactants and β-lactam antibiotics. These treatments affect the cell surface structures of C. glutamicum. After the discovery of C. glutamicum, many researchers have investigated the underlying mechanism of L-glutamate overproduction with respect to the cell surface structures of this organism...
December 3, 2016: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/27913408/neurophysiological-mechanisms-of-cortical-plasticity-impairments-in-schizophrenia-and-modulation-by-the-nmda-receptor-agonist-d-serine
#7
Joshua T Kantrowitz, Michael L Epstein, Odeta Beggel, Stephanie Rohrig, Jonathan M Lehrfeld, Nadine Revheim, Nayla P Lehrfeld, Jacob Reep, Emily Parker, Gail Silipo, Merav Ahissar, Daniel C Javitt
Schizophrenia is associated with deficits in cortical plasticity that affect sensory brain regions and lead to impaired cognitive performance. Here we examined underlying neural mechanisms of auditory plasticity deficits using combined behavioural and neurophysiological assessment, along with neuropharmacological manipulation targeted at the N-methyl-D-aspartate type glutamate receptor (NMDAR). Cortical plasticity was assessed in a cohort of 40 schizophrenia/schizoaffective patients relative to 42 healthy control subjects using a fixed reference tone auditory plasticity task...
December 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27913207/overexpression-of-stim1-in-neurons-in-mouse-brain-improves-contextual-learning-and-impairs-long-term-depression
#8
Łukasz Majewski, Filip Maciąg, Paweł M Boguszewski, Iga Wasilewska, Grzegorz Wiera, Tomasz Wójtowicz, Jerzy Mozrzymas, Jacek Kuznicki
STIM1 is an endoplasmic reticulum calcium sensor that is involved in several processes in neurons, including store-operated calcium entry. STIM1 also inhibits voltage-gated calcium channels, such as Cav1.2 and Cav3.1, and is thus considered a multifunctional protein. The aim of this work was to investigate the ways in which transgenic neuronal overexpression of STIM1 in FVB/NJ mice affects animal behavior and the electrophysiological properties of neurons in acute hippocampal slices. We overexpressed STIM1 from the Thy1...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27913184/tolerance-of-hyperammonemia-in-brain-of-heteropneustes-fossilis-is-supported-by-glutamate-glutamine-cycle
#9
Suman Mishra, Rajnikant Mishra
This report presents analysis of molecular switches associated with tolerance to hyperammonemia in Heteropneustes fossilis because it tolerates about 100-fold more ammonia than mammals. Brains of Heteropneustes fossilis exposed to 100mM ammonium chloride were dissected after Zero hour as control, 16hrs and 20hrs exposure. The status of neuron and glia were analysed by Golgi staining, Luxol Fast Blue, and Nissl's staining. The expression patterns of genes associated to homeostasis of neuron and glia, management of oxidative stress and inflammation, ammonia metabolism and brain derived neurotrophic factor were analysed through reverse-transcriptase-polymerase chain reaction...
November 29, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27913012/hyperglycemic-high-anion-gap-metabolic-acidosis-in-patients-receiving-sglt-2-inhibitors-for-diabetes-management
#10
Juliette Sandifer Kum-Nji, Aidar R Gosmanov, Helmut Steinberg, Samuel Dagogo-Jack
Sodium-glucose cotransporter-2 inhibitors (SGLT-2i) are a class of antidiabetic medications that improve glycemic control via inhibiting the reabsorption of filtered glucose and are approved for use in type 2 diabetes (T2DM). These drugs have recently been associated with euglycemic diabetic ketoacidosis (DKA). An increasing number of cases of SGLT-2i-associated DKA have occurred in patients with T2DM. Herein, we describe five episodes of hyperglycemic DKA in four type 2 diabetes patients receiving SGLT-2i therapy...
November 9, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27912176/novel-designed-vmct1-analogs-with-increased-antimicrobial-activity
#11
Cibele Nicolaski Pedron, Marcelo Der Torossian Torres, Julia Aparecida da Silva Lima, Pedro Ismael Silva, Fernanda Dias Silva, Vani Xavier Oliveira
Antimicrobial peptides are biologically active molecules produced by a wide range of organisms as an essential component of the innate immune response. They have recently attracted great interest, since they have antimicrobial activity against a broad spectrum of microorganisms. VmCT1 is a cationic peptide from the venom of Vaejovis mexicanus smithi scorpions, which presents antibacterial activity and tends to helical structures. Its analogs were synthesized, characterized and the conformational studies were performed by circular dichroism...
November 24, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27911855/glutamine-and-glutaminolysis-are-required-for-efficient-replication-of-infectious-spleen-and-kidney-necrosis-virus-in-chinese-perch-brain-cells
#12
Xiaozhe Fu, Xianqin Hu, Ningqiu Li, Feifei Zheng, Xingxing Dong, Jing Duan, Qiang Lin, Jiagang Tu, Lijuan Zhao, Zhibin Huang, Jianguo Su, Li Lin
Viruses rely on host cellular metabolism for energy and macromolecule synthesis during their replication. Infectious spleen and kidney necrosis virus (ISKNV) causes significant economic losses in the Chinese perch (Siniperca chuatsi) industry worldwide. However, little is known about the relationship between ISKNV replication and cellular metabolism. Using transcriptomic analysis, we observed that glutamine metabolism in Chinese perch brain (CPB) cells is altered during ISKNV infection. Moreover, ISKNV replication was decreased in CPB cells cultured in the glutamine-depleted medium...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911757/local-and-use-dependent-effects-of-%C3%AE-amyloid-oligomers-on-nmda-receptor-function-revealed-by-optical-quantal-analysis
#13
Brooke L Sinnen, Aaron B Bowen, Emily S Gibson, Matthew J Kennedy
: Beta amyloid (Aβ) triggers the elimination of excitatory synaptic connections in the CNS, an early manifestation of Alzheimer's disease. Oligomeric assemblies of Aβ peptide associate with excitatory synapses resulting in synapse elimination through a process that requires NMDA-type glutamate receptor activation. Whether Aβ affects synaptic NMDA receptor (NMDAR) function directly and acts locally at synapses to which it has bound and whether synaptic activity influences Aβ synaptic binding and synaptotoxicity have remained fundamental questions...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911756/activation-of-group-ii-metabotropic-glutamate-receptors-promotes-ltp-induction-at-schaffer-collateral-ca1-pyramidal-cell-synapses-by-priming-nmda-receptors
#14
Nadia Rosenberg, Urs Gerber, Jeanne Ster
: It is well established that selective activation of group I metabotropic glutamate (mGlu) receptors induces LTD of synaptic transmission at Schaffer collateral-CA1 synapses. In contrast, application of 1S,3R-ACPD, a mixed agonist at group I and group II mGlu receptors, induces LTP. Using whole-cell recordings from CA1 pyramidal cells and field recordings in the hippocampal CA1 region, we investigated the specific contribution of group II mGlu receptors to synaptic plasticity at Schaffer collateral-CA1 synapses in acute slices of adult mice...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911305/nitrosylation-of-vesicular-transporters-in-brain-of-amyloid-precursor-protein-presenilin-1-double-transgenic-mice
#15
Ying Wang, Zhu Zhou, Hua Tan, Shenghua Zhu, Yiran Wang, Yingxia Sun, Xin-Min Li, Jun-Feng Wang
Nitric oxide can attack thiol groups of cysteine residues in proteins and induce protein cysteine S-nitrosylation. Cholinergic and glutamatergic systems are dysregulated in Alzheimer's disease. Vesicular acetylcholine transporter (VAChT) and vesicular glutamate transporter 1 (VGLUT1) are important in packaging acetylcholine and glutamate into vesicles, which is an important step for neurotransmission. Previously we found that VAChT and VGLUT1 can be nitrosylated and that S-nitrosylation of these transporters inhibits vesicular uptake of acetylcholine and glutamate...
November 26, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911093/dna-microarray-profiling-highlights-nrf2-mediated-chemoprevention-targeted-by-wasabi-derived-isothiocyanates-in-hepg2-cells
#16
Phoebe Zapanta Trio, Atsuyoshi Kawahara, Shunsuke Tanigawa, Kozue Sakao, De-Xing Hou
6-MSITC and 6-MTITC are sulforaphane (SFN) analogs found in Japanese Wasabi. As we reported previously, Wasabi isothiocyanates (ITCs) are activators of Nrf2-antioxidant response element pathway, and also inhibitors of pro-inflammatory cyclooxygenase-2. This study is the first to assess the global changes in transcript levels by Wasabi ITCs, comparing with SFN, in HepG2 cells. We performed comparative gene expression profiling by treating HepG2 cells with ITCs, followed by DNA microarray analyses using HG-U133 plus 2...
December 2, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27910779/amelioration-of-doxorubicin-induced-cardiac-and-renal-toxicity-by-oxycarotenoid-lutein-and-its-mechanism-of-action
#17
Edakkadath Raghavan Sindhu, Thattaruparambil Raveendran Nithya, Ponnamparambil Purushothaman Binitha, Ramadasan Kuttan
We set out to determine the effect of oxycarotenoid lutein on reducing cardiac and renal toxicity induced by doxorubicin (DXR). We started with oral administration in rats of lutein for 15 d before administering DXR (30 mg/kg body weight, intraperitoneally, in a single dose). Animals in all groups were sacrificed 24 h after DXR administration. Serum markers of cardiac injury lactate dehydrogenase, creatine phosphokinase, serum glutamate oxaloacetate transaminase, and serum glutamate pyruvate transaminase increased drastically after DXR but decreased after lutein treatment (p < 0...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27910774/comparison-of-the-chemical-composition-and-bioactive-components-of-fruiting-bodies-and-submerged-cultured-mycelia-of-the-willow-bracket-medicinal-mushroom-phellinus-igniarius-agaricomycetes
#18
Huawei Zeng, Wenfeng Wang, Menghua Ma, Guohua Xu, Mei Ying-Jie, Jianfan Sund
Chemical compositions and bioactive ingredients of dried fruiting bodies from Phellinus igniarius (CGMCC no. 50095) (P1) and submerged culture of Ph. igniarius dried mycelia (P2) were investigated in this study. It was found that glutamic acid was regarded as a major amino acid in P1 (1.20%) and was approximately 2.55-fold higher than that in P2 (0.47%). Total amino acids in P1 (5.36%) were slightly higher than in P2 (4.09%). The amounts of iron, zinc, copper, and manganese in P1 were 1.96-3.42 times as high as those in P2, whereas potassium, sodium, and magnesium in P2 were almost 2...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27909856/metabolic-changes-in-the-bilateral-visual-cortex-of-the-monocular-blind-macaque-a-multi-voxel-proton-magnetic-resonance-spectroscopy-study
#19
Lingjie Wu, Zuohua Tang, Xiaoyuan Feng, Xinghuai Sun, Wen Qian, Jie Wang, Lixin Jin, Jingxuan Jiang, Yufeng Zhong
The metabolic changes accompanied with adaptive plasticity in the visual cortex after early monocular visual loss were unclear. In this study, we detected the metabolic changes in bilateral visual cortex of normal (group A) and monocular blind macaque (group B) for studying the adaptive plasticity using multi-voxel proton magnetic resonance spectroscopy ((1)H-MRS) at 32 months after right optic nerve transection. Then, we compared the N-Acetyl aspartate (NAA)/Creatine (Cr), myoinositol (Ins)/Cr, choline (Cho)/Cr and Glx (Glutamate + glutamine)/Cr ratios in the visual cortex between two groups, as well as between the left and right visual cortex of group A and B...
December 1, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27909746/brain-glutamate-in-anorexia-nervosa-a-magnetic-resonance-spectroscopy-case-control-study-at-7-tesla
#20
Beata R Godlewska, Alexandra Pike, Ann L Sharpley, Agnes Ayton, Rebecca J Park, Philip J Cowen, Uzay E Emir
RATIONALE: Anorexia nervosa (AN) is a serious psychiatric disorder with high morbidity and mortality. There are no established pharmacological treatments and the neurobiology of the condition is poorly understood. Previous studies using magnetic resonance spectroscopy (MRS) have shown that AN may be associated with reductions in indices of brain glutamate; however, at conventional field strengths (≤3 T), it is difficult to separate glutamate from its precursor and metabolite, glutamine...
December 1, 2016: Psychopharmacology
keyword
keyword
5484
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"