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Monosodium Glutamate

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https://www.readbyqxmd.com/read/28442748/pentamethylquercetin-induces-adipose-browning-and-exerts-beneficial-effects-in-3t3-l1-adipocytes-and-high-fat-diet-fed-mice
#1
Yi Han, Jian-Zhao Wu, Ji-Zhong Shen, Lei Chen, Ting He, Man-Wen Jin, Hui Liu
Browning white adipocytes may be a new target in anti-obesity therapy. Pentamethylquercetin (PMQ) has been shown to have anti-obesity effects in monosodium glutamate-induced obese mice. Here, we aimed to study the anti-obesity effects of PMQ in vitro and in vivo and to determine if adipose browning is involved in the mechanism underlying the anti-obesity effects of PMQ. We evaluated the effects of PMQ on cell proliferation, cell differentiation, glucose consumption, cellular lipid metabolism, and related brown gene expression in 3T3-L1 adipocytes...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438014/characterization-of-a-glutamate-decarboxylase-gad-from-enterococcus-avium-m5-isolated-from-jeotgal-a-fermented-korean-sea-food
#2
Kang Wook Lee, Jae Min Shim, Zhuang Yao, Jeong A Kim, Hyun-Jin Kim, Jeong Hwan Kim
To develop starters for the production of functional foods or materials, lactic acid bacteria producing γ-aminobutyric acid (GABA) were screened from jeotgals, Korean fermented sea foods. One isolate producing high amount of GABA from monosodium L-glutamate (MSG) was identified as Enterococcus avium by 16S rRNA gene sequencing. E. avium M5 produced 18.47 ± 1.26 mg/ml GABA when incubated for 48 h at 37°C in MRS broth with MSG (3%, w/v). A gadB gene encoding glutamate decarboxylase (GAD) was cloned and overexpressed in E...
April 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28437507/effects-of-experimental-pain-and-lidocaine-on-mechanical-somatosensory-profile-and-face-perception
#3
Yuri Martins Costa, Eduardo E Castrillon, Leonardo Rigoldi Bonjardim, Paulo César Rodrigues Conti, Lene Baad-Hansen, Peter Svensson
AIMS: To assess the effects of experimental muscle pain and topical lidocaine applied to the skin overlying the masseter muscle on the mechanical somatosensory profile and face perception of the masseter muscle in healthy participants. METHODS: A total of 28 healthy participants received a 45-minute application of a lidocaine or placebo patch to the skin overlying the masseter muscle followed by one injection of 0.2 mL sterile solution of monosodium glutamate. Measurements were taken four times during each session of quantitative sensory testing (QST) (T0 = baseline, T1 = 45 minutes after patch application, T2 = immediately after glutamate injection, and T3 = 25 minutes after the glutamate injection), and the following variables were measured: mechanical detection threshold (MDT), mechanical pain threshold (MPT), pressure pain threshold (PPT), pain report (pain on palpation, pain spreading on palpation, and pain intensity), pain drawing, and perceptual distortion...
April 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28436061/resistance-exercise-reduces-memory-impairment-induced-by-monosodium-glutamate-in-male-and-female-rats
#4
Paulo Cesar Oliveira Araujo, Caroline Brandão Quines, Natália Silva Jardim, Marlon Regis Leite, Cristina Wayne Nogueira
NEW FINDINGS: Monosodium glutamate causes cognitive impairment. Resistance exercise is effective against monosodium glutamate induced memory impairment in male and female mice. ABSTRACT: Monosodium glutamate (MSG), a flavor enhancer in diets, causes cognitive impairment in humans. Exercise has been reported to protect against impairment of memory in humans. This study investigated if resistance exercise improves the performance of male and female rats treated with MSG in tests of memory and motor coordination...
April 23, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28411553/cerium-dioxide-nanoparticles-possess-anti-inflammatory-properties-in-the-conditions-of-the-obesity-associated-nafld-in-rats
#5
Nazarii Kobyliak, Oleksandr Virchenko, Tetyana Falalyeyeva, Maryana Kondro, Tetyana Beregova, Petro Bodnar, Oleksandr Shcherbakov, Rostyslav Bubnov, Martin Caprnda, Delian Delev, Jan Sabo, Peter Kruzliak, Luis Rodrigo, Radka Opatrilova, Mykola Spivak
BACKGROUND: Obesity is a risk factor for non-alcoholic fatty liver disease (NAFLD). The disease is associated with impairment of pro/antioxidant equilibrium and the inflammation in liver tissue. The aim of the work was to investigate the anti-inflammatory properties of the nanocrystalline cerium dioxide (nCeO2) on the rat model of NAFLD associated with monosodium glutamate (MSG)-induced obesity. METHODS: The study was carried out on three groups of rats: control, MSG- and MSG+nCeO2...
April 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28387830/development-of-liquid-bait-with-unique-bait-station-for-control-of-dolichoderus-thoracicus-hymenoptera-formicidae
#6
Chung-Chi Lin, Tsai-Wei Chang, Hung-Wei Chen, Chung-Han Shih, Po-Cheng Hsu
The Dolichoderus thoracicus (Smith) has seriously infested urban, village, and agricultural environments in Taiwan. To develop optimal bait for the effective control of D. thoracicus, we investigated the feeding preferences of this ant at different sugar and amino acid concentrations in a laboratory setting. The number of feeding workers was significantly higher for 20% sucrose compared with that for other sugars at 10% and 20% concentrations. Furthermore, among all tested concentrations of monosodium glutamate (MSG; 1%, 3%, 5%, and 10%), the highest number of ants were attracted by 1% MSG with 20% sucrose...
April 6, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28380195/duodenal-jejunal-bypass-normalizes-pancreatic-islet-proliferation-rate-and-function-but-not-hepatic-steatosis-in-hypothalamic-obese-rats
#7
K R Cantelli, G M Soares, R A Ribeiro, S L Balbo, C Lubaczeuski, A C Boschero, A C F Araújo, M L Bonfleur
Modifications in life-style and/or pharmacotherapies contribute to weight loss and ameliorate the metabolic profile of diet-induced obese humans and rodents. Since these strategies fail to treat hypothalamic obesity, we have assessed the possible mechanisms by which duodenal-jejunal bypass (DJB) surgery regulates hepatic lipid metabolism and the morphophysiology of pancreatic islets, in hypothalamic obese (HyO) rats. During the first 5 days of life, male Wistar rats received subcutaneous injections of monosodium glutamate (4 g/kg body weight, HyO group), or saline (CTL)...
March 30, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28357464/monosodium-glutamate-associated-alterations-in-open-field-anxiety-related-and-conditioned-place-preference-behaviours-in-mice
#8
Olakunle James Onaolapo, Olaleye Samuel Aremu, Adejoke Yetunde Onaolapo
The present study investigated changes in behaviour associated with oral monosodium glutamate (a flavouring agent), using the open field, elevated plus maze and conditioned place preference (CPP) paradigms, respectively. Mice were assigned to two groups for CPP [monosodium glutamate (MSG)-naïve (n = 40) and MSG-pretreated (n = 40)] and two groups for open field (OF) and elevated plus maze (EPM) tests [n = 40 each], respectively. Animals in respective groups were then divided into four subgroups (n = 10) (vehicle or MSG (80, 160 and 320 mg/kg))...
March 29, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28339990/detecting-thresholds-for-bitter-umami-and-sweet-tastants-in-broiler-chicken-using-a-2-choice-test-method
#9
Shira L Cheled-Shoval, Naama Reicher, Masha Y Niv, Zehava Uni
The sense of taste has a key role in nutrient sensing and food intake in animals. A standardized and simple method for determination of tastant-detection thresholds is required for chemosensory research in poultry. We established a 24-h, 2-alternative, forced-choice solution-consumption method and applied it to measure detection thresholds for 3 G-protein-coupled receptor-mediated taste modalities-bitter, sweet, and umami-in chicken. Four parameters were used to determine a significant response: 1) tastant-solution consumption; 2) water (tasteless) consumption; 3) total consumption (tastant and water together); 4) ratio of tastant consumption to total consumption...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28334294/an-examination-of-the-role-of-l-glutamate-and-inosine-5-monophosphate-in-hedonic-taste-guided-behavior-by-mice-lacking-the-t1r1-t1r3-receptor
#10
Ginger D Blonde, Alan C Spector
The heterodimeric T1R1 + T1R3 receptor is considered critical for normal signaling of L-glutamate and 5'-ribonucleotides in the oral cavity. However, some taste-guided responsiveness remains in mice lacking one subunit of the receptor, suggesting that other receptors are sufficient to support some behaviors. Here, mice lacking both receptor subunits (KO) and wild-type (WT, both n = 13) mice were tested in a battery of behavioral tests. Mice were trained and tested in gustometers with a concentration series of Maltrin-580, a maltodextrin, in a brief-access test (10-s trials) as a positive control...
March 17, 2017: Chemical Senses
https://www.readbyqxmd.com/read/28303588/dietary-consumption-of-monosodium-l-glutamate-induces-adaptive-response-and-reduction-in-the-life-span-of-drosophila-melanogaster
#11
Amos O Abolaji, Charles O Olaiya, Oluwagbenga J Oluwadahunsi, Ebenezer O Farombi
Adaptive response is the ability of an organism to better counterattack stress-induced damage in response to a number of different cytotoxic agents. Monosodium L-glutamate (MSG), the sodium salt of amino acid glutamate, is commonly used as a food additive. We investigated the effects of MSG on the life span and antioxidant response in Drosophila melanogaster (D. melanogaster). Both genders (1 to 3 days old) of flies were fed with diet containing MSG (0.1, 0.5, and 2.5-g/kg diet) for 5 days to assess selected antioxidant and oxidative stress markers, while flies for longevity were fed for lifetime...
April 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28298151/effect-of-exclusion-of-frequently-consumed-dietary-triggers-in-a-cohort-of-children-with-chronic-primary-headache
#12
Sepideh Taheri
BACKGROUND: Although dietary factors are known to trigger headaches, the relationship between food and headache in children remains unclear. This prospective, observational case series aimed to evaluate the effect of exclusion of frequently-consumed foods in a cohort of children with headache. METHODS: One hundred and fifteen children aged 3-15 (mean 10.5) years with primary headache were followed in a paediatric outpatient clinic. Patients who frequently consumed foods or food additives known to trigger headaches were advised to exclude them for six weeks and to return for follow-up with headache and food diary...
March 2017: Nutrition and Health
https://www.readbyqxmd.com/read/28270006/-effects-of-dietary-monosodium-glutamate-on-gene-expression
#13
Júlia Vanda Jurasek, László Bence Raposa, Andrea Gubicskóné Kisbenedek, Veronika Varga, Zoltán Szabó, Tímea Varjas
INTRODUCTION: Nowadays, the food industry more often uses different type of additives during the food production. AIM: Our aim was to examine the monosodium-glutamate's effect (in animal experiment) on DNA-methyltransferases in gene expression patterns of mRNA levels. MATERIALS AND METHOD: In the investigation we used 24 (n=24) CD1 type female mice. The animals were fed with different equivalent human doses of the tested substance. After autopsy, mRNA was isolated from different tissues (lung, liver, kidney, spleen)...
March 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28248971/clofibrate-inhibits-the-umami-savory-taste-of-glutamate
#14
Matthew Kochem, Paul A S Breslin
In humans, umami taste can increase the palatability of foods rich in the amino acids glutamate and aspartate and the 5'-ribonucleotides IMP and GMP. Umami taste is transduced, in part, by T1R1-T1R3, a heteromeric G-protein coupled receptor. Umami perception is inhibited by sodium lactisole, which binds to the T1R3 subunit in vitro. Lactisole is structurally similar to the fibrate drugs. Clofibric acid, a lipid lowering drug, also binds the T1R3 subunit in vitro. The purpose of this study was to determine whether clofibric acid inhibits the umami taste of glutamate in human subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28237619/glutamate-affects-the-production-of-epoxyeicosanoids-within-the-brain-the-up-regulation-of-brain-cyp2j-through-the-mapk-creb-signaling-pathway
#15
Mingzhou Liu, Quanfei Zhu, Jinhua Wu, Xuming Yu, Mingbai Hu, Xianfei Xie, Zheqiong Yang, Jing Yang, Yu-Qi Feng, Jiang Yue
Glutamate is the major excitatory neurotransmitter in the brain, and chronic glutamate excitotoxicity has been thought to be involved in numerous neurodegenerative diseases. We investigated the effects of glutamate at concentrations lower than the usual extrasynaptic concentrations on the production of epoxyeicosanoids mediated by brain CYP2J. Glutamate increased CYP2J2 mRNA levels in astrocytes in a dose-dependent manner, while an antagonist of the metabotropic glutamate receptor subtype 5 (mGlu5 receptor) attenuated the glutamate-induced increases in CYP2J2 levels by glutamate...
April 15, 2017: Toxicology
https://www.readbyqxmd.com/read/28214329/-p-clphse-2-reduces-hepatotoxicity-induced-by-monosodium-glutamate-by-improving-mitochondrial-function-in-rats
#16
Caroline B Quines, Pietro M Chagas, Diane Hartmann, Nélson R Carvalho, Félix A Soares, Cristina W Nogueira
It is has been demonstrated that mitochondrial dysfunction, oxidative stress, and chronic inflammatory process are associated with progress of morbid obesity in human patients. For this reason, the searching for safe and effective antiobesity drugs has been the subject of intense research. In this context, the organic selenium compounds have attracted much attention due to their pharmacological properties, such as antihyperglycemic, antioxidant, and anti-inflammatory. The aim of this study was to evaluate the hepatoprotective action of p-chloro-diphenyl diselenide (p-ClPhSe)2 , an organic selenium compound, in a model of obesity induced by monosodium glutamate (MSG) administration in rats...
February 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28197528/antimutagenic-effect-of-hibiscus-sabdariffa-l-aqueous-extract-on-rats-treated-with-monosodium-glutamate
#17
Ana Carla Guidini Valentini Gheller, Jacqueline Kerkhoff, Gerardo Magela Vieira Júnior, Kleber Eduardo de Campos, Marina Mariko Sugui
Hibiscus sabdariffa L. is a plant of the Malvaceae family, commonly known as roselle. H. sabdariffa is known to contain antioxidant, cholesterol-lowering, antiobesity, insulin resistance reduction, antihypertensive, and skin cancer chemopreventive properties. This study evaluated the effects of H. sabdariffa aqueous extract against cyclophosphamide (CPA, 25 mg/Kg) induced damage to DNA in male Wistar rats by micronucleus test. Samples of H. sabdariffa calyx were obtained in the municipality of Barra do Garças, Mato Grosso, Brazil...
2017: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28184327/the-effects-of-monosodium-glutamate-and-tannic-acid-on-adult-rats
#18
Ibrahim Ugur Calis, Didem Turgut Cosan, Faruk Saydam, Umut Kerem Kolac, Ahu Soyocak, Hulyam Kurt, Hasan Veysi Gunes, Varol Sahinturk, Fezan Sahin Mutlu, Zeynep Ozdemir Koroglu, Irfan Degirmenci
BACKGROUND: Monosodium glutamate (MSG) is a widely-used flavor enhancer and stabilizer in ready-made or packaged foods. The excessive use of MSG has been shown to increase oxidative stress in different organ systems and causes glucose metabolism disorders, obesity, and coronary diseases. OBJECTIVES: In this study, the antioxidant activity of tannic acid was investigated experimentally with respect to its protective effects against overdosed MSG-induced oxidative stress in rats...
October 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28110193/effects-of-polyphenol-compounds-melanin-on-nafld-nash-prevention
#19
Natalia Belemets, Nazarii Kobyliak, Oleksandr Virchenko, Tetyana Falalyeyeva, Tsyryuk Olena, Petro Bodnar, Oleksiy Savchuk, Tetyana Galenova, Martin Caprnda, Luis Rodrigo, Lubomir Skladany, Delian Delev, Radka Opatrilova, Peter Kruzliak, Tetyana Beregova, Lyudmyla Ostapchenko
BACKGROUND: One of the pathogenic mechanisms of the progression non-alcoholic liver disease (NAFLD) to nonalcoholic steatohepatitis (NASH) is the accumulation of reactive oxygen species (ROS). So, antioxidant therapy is necessary for successful treatment of the liver injury. We have paid attention to melanin produced by yeast Nadsoniella nigra strain X-1 as novel antioxidant and anti-inflammatory agents with low toxicity. In current study we aimed to investigate the preventive effect of melanin on the monosodium glutamate (MSG) induced NAFLD model in rats...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28087338/auditory-hindbrain-atrophy-and-anomalous-calcium-binding-protein-expression-after-neonatal-exposure-to-monosodium-glutamate
#20
Lindsey Foran, Kaitlyn Blackburn, Randy J Kulesza
Glutamate is the most abundant excitatory neurotransmitter in the central nervous system, and is stored and released by both neurons and astrocytes. Despite the important role of glutamate as a neurotransmitter, elevated extracellular glutamate can result in excitotoxicity and apoptosis. Monosodium glutamate (MSG) is a naturally occurring sodium salt of glutamic acid that is used as a flavor enhancer in many processed foods. Previous studies have shown that MSG administration during the early postnatal period results in neurodegenerative changes in several forebrain regions, characterized by neuronal loss and neuroendocrine abnormalities...
March 6, 2017: Neuroscience
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