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Monosodium Glutamate

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https://www.readbyqxmd.com/read/29227690/effect-of-the-induction-of-transgenerational-obesity-on-maternal-fetal-parameters
#1
Thaigra Sousa Soares, Ana Paula Andreolla, Carolina Abreu Miranda, Eduardo Klöppel, Luhara Silva Rodrigues, Rafaianne Queiroz Moraes-Souza, Débora Cristina Damasceno, Gustavo Tadeu Volpato, Kleber Eduardo Campos
Maternal obesity can cause complications for both women and their offspring for generations. Therefore, we intended to verify the repercussions of induction of transgenerational obesity on biochemical parameters, reproductive performance, and congenital anomaly frequency in Wistar rats. Female rats were used from successive generations. The female rats of parental generation (F0, n=10) were mated to obtain their offspring (F1 generation). F1 female rats received a monosodium glutamate (MSG) solution to induce obesity (n=07) or vehicle (control, n=06) during the neonatal period...
December 11, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29222887/relationship-between-umami-taste-acuity-with-sweet-or-bitter-taste-acuity-and-food-selection-in-japanese-women-university-students
#2
Masaru Kubota, Chikako Toda, Ayako Nagai-Moriyama
BACKGROUND AND OBJECTIVES: Although there are many studies on the umami receptor and its signaling pathway, literature on the effect of umami taste acuity on dietary choices in healthy subjects is limited. The current study aims to clarify the relationship between umami taste acuity with sweet or bitter taste acuity, food preference and intake. METHODS AND STUDY DESIGN: Forty-two healthy Japanese female university students were enrolled. The acuity for umami, sweet, and bitter tastes was evaluated using the filter-paper disc method...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29188030/monosodium-glutamate-as-a-tool-to-reduce-sodium-in-foodstuffs-technological-and-safety-aspects
#3
REVIEW
Hellen D B Maluly, Adriana P Arisseto-Bragotto, Felix G R Reyes
Sodium chloride (NaCl) is the most commonly used ingredient to provide salty taste to foods. However, excess sodium in the bloodstream has been associated with the development of several chronic noncommunicable diseases. In order to limit sodium intake to levels considered safe, the World Health Organization (WHO) recommends for adults a daily intake of not more than 5 g of NaCl (less than 2 g of sodium). One of the strategic actions recommended by the Pan American Health Organization (PAHO) to reduce sodium intake is reformulation of processed foods...
November 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/29161056/de-novo-food-allergy-in-pediatric-liver-transplantation-recipients
#4
Ratchaneewan Sinitkul, Wiparat Manuyakorn, Wasu Kamchaisatian, Soamarat Vilaiyuk, Suwat Benjaponpitak, Chatmanee Lertudompholwanit, Suporn Treepongkaruna
BACKGROUND: Food allergy (FA) prevalence is increasing in pediatric liver transplantation (LT). However, the clinical course is still limited. OBJECTIVE: This retrospective cohort study aimed to identify the prevalence, risk factors, and the natural history of de novo FA in children post LT. METHODS: Medical records of pediatric LT recipients from Jan 2001 - Dec 2014 were reviewed. De novo FA was diagnosed by symptoms after exposure to culprit food occurring after LT, and improvement after diet elimination...
November 22, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/29134509/selection-of-an-effective-indicator-for-rapid-detection-of-microorganisms-producing-%C3%AE-polyglutamic-acid-and-its-biosynthesis-under-submerged-fermentation-conditions-using-bacillus-methylotrophicus
#5
Poonam Mishra Chatterjee, Silpi Datta, Deepika Pandey Tiwari, Ritu Raval, Ashok Kumar Dubey
γ-Polyglutamic acid (γ-PGA) is a biosynthetic outcome of glutamic acid polymerization by microbes. In the current study, we have isolated Bacillus methylotrophicus on solid differential media containing methylene blue. This is the first report mentioning the use of methylene blue to distinguish the monomeric and polymeric form of glutamic acid in the liquid medium using UV-Vis spectrophotometer. Our method can simplify the analytical process of γ-PGA confirmation using the aforementioned studies. This screening protocol is sensitive to the detection of γ-PGA quantities as low as 3 μg/mL; thus, the potent producers can be effectively screened...
November 13, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29127646/can-we-spice-up-our-christmas-dinner-busting-the-myth-of-the-chinese-restaurant-syndrome
#6
N W E van den Berg, J Neefs, W R Berger, S W E Baalman, E Meulendijks, M Kawasaki, E M Kemper, F R Piersma, M W Veldkamp, R Wesselink, S P J Krul, J R de Groot
BACKGROUND: Monosodium glutamate (MSG), also referred to as Vetsin or E621, is a flavour enhancer frequently used in Asian cuisine and abundantly present in the famous Chinese dish Peking duck. MSG is notorious for triggering the onset of the so-called 'Chinese restaurant syndrome' (CRS), a complex of unpleasant symptoms, which might include flushing, sweating and the onset of atrial fibrillation (AF). This study aims to determine the effects of MSG on the occurrence of AF. METHODS: We conducted a placebo self-controlled single-arm study in the Academic Medical Centre in Amsterdam...
December 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/29125056/monosodium-glutamate-and-treadmill-exercise-anxiety-like-behavior-and-spreading-depression-features-in-young-adult-rats
#7
Suênia Marcele Vitor-de-Lima, Larissa de Brito Medeiros, Regina de Deus Lira Benevides, Catarina Nicácio Dos Santos, Nahara Oliveira Lima da Silva, Rubem Carlos Araújo Guedes
OBJECTIVES: The route of administration is an important factor in determining the action of some drugs. We previously demonstrated that subcutaneous monosodium glutamate (MSG) accelerated cortical spreading depression (CSD) in the rat and that treadmill exercise attenuated this effect. This study evaluated whether other routes of administration exert the same action by testing orogastric (gavage) and topical cortical MSG administration in treadmill-exercised and sedentary rats. Additionally, in the orogastric treatment we tested anxiety-like behavior...
November 10, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29119727/monosodium-glutamate-suppresses-the-female-reproductive-function-by-impairing-the-functions-of-ovary-and-uterus-in-rat
#8
Mukti Mondal, Kaushik Sarkar, Partha Pratim Nath, Goutam Paul
The aim of the present study was to examine the effect of monosodium glutamate (MSG) on the functions of ovary and uterus in rat. Virgin female rats of Charles Foster strain (120 gms approximately) were administrated MSG by oral gavage at a dose level of 0.8, 1.6, 2.4 gm/kgBW/day, respectively for 30 and 40 days duration. We observed a significant decrease in the duration of proestrus, estrus and metestrus phases, and increase in the duration of diestrus phase and diestrus index compared to control. We found significant increase in the levels of serum LH, FSH and estradiol in test groups of rat...
November 9, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29117134/ginger-and-propolis-exert-neuroprotective-effects-against-monosodium-glutamate-induced-neurotoxicity-in-rats
#9
Usama K Hussein, Nour El-Houda Y Hassan, Manal E A Elhalwagy, Amr R Zaki, Huda O Abubakr, Kalyan C Nagulapalli Venkata, Kyu Yun Jang, Anupam Bishayee
Central nervous system cytotoxicity is linked to neurodegenerative disorders. The objective of the study was to investigate whether monosodium glutamate (MSG) neurotoxicity can be reversed by natural products, such as ginger or propolis, in male rats. Four different groups of Wistar rats were utilized in the study. Group A served as a normal control, whereas group B was orally administered with MSG (100 mg/kg body weight, via oral gavage). Two additional groups, C and D, were given MSG as group B along with oral dose (500 mg/kg body weight) of either ginger or propolis (600 mg/kg body weight) once a day for two months...
November 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29099794/hydrogel-film-immobilized-lactobacillus-brevis-rk03-for-%C3%AE-aminobutyric-acid-production
#10
Yi-Huang Hsueh, Wen-Chang Liaw, Jen-Min Kuo, Chi-Shin Deng, Chien-Hui Wu
Hydrogels of 2-hydroxyethyl methacrylate/polyethylene glycol diacrylate (HEMA/PEGDA) have been extensively studied for their use in biomedical and pharmaceutical applications owing to their nontoxic and highly hydrophilic characteristics. Recently, cells immobilized by HEMA/PEGDA hydrogels have also been studied for enhanced production in fermentation. Hydrogel films of HEMA/PEGDA copolymer were generated by Ultraviolet (UV)-initiated photopolymerization. The hydrogel films were used to immobilize viable Lactobacillus brevis RK03 cells for the bioconversion of monosodium glutamate (MSG) to γ-aminobutyric acid (GABA)...
November 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29097195/selenofuranoside-improves-long-term-memory-deficits-in-rats-after-exposure-to-monosodium-glutamate-involvement-of-na-k-atpase-activity
#11
Juliana Bernera Ramalho, Aryele Pinto Izaguirry, Melina Bucco Soares, Cristiano Chiapinotto Spiazzi, Natasha Frasson Pavin, Ricardo Ferreira Affeldt, Diogo Seibert Lüdtke, Simone Pinton, Francielli Weber Santos, Marina Prigol
Monosodium glutamate (MSG) is the most widely used additive in the food industry; however, some adverse effects of this additive, including functional, learning, and behavioral alterations, have been observed in experimental animals and humans. Studies have shown learning and memory impairment in adult animals exposed to MSG. However, studies relating exposure to MSG to acetylcholinesterase (AChE) and Na(+), K(+)-ATPase activities and memory damage are still scarce in the literature. The aim of the present study was to assess the possible protective effects of selenofuranoside, an organoselenium compound, against the impairment of long-term memory, Na(+), K(+)-ATPase and AChE activities, and oxidative stress after MSG exposure in rats...
October 31, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29043315/quantification-of-cation-anion-interactions-in-crystalline-monopotassium-and-monosodium-glutamate-salts
#12
Michael T Ruggiero, Juraj Sibik, Alessandro Erba, J Axel Zeitler, Timothy M Korter
Crystalline salt compounds composed of metal cations and organic anions are becoming increasingly popular in a number of fields, including the pharmaceutical and food industries, where such formulations can lead to increased product solubility. The origins of these effects are often in the interactions between the individual components in the crystals, and understanding these forces is paramount for the design and utilisation of such materials. Monosodium glutamate monohydrate and monopotassium glutamate monohydrate are two solids that form significantly different structures with correspondingly dissimilar dynamics, while their chemistry only differs in cation identity...
November 1, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29022648/probiotics-for-experimental-obesity-prevention-focus-on-strain-dependence-and-viability-of-composition
#13
Nazarii Kobyliak, Tetyana Falalyeyeva, Tetyana Beregova, Mykola Spivak
INTRODUCTION: a comparative animal study of the efficacy of intermittent short-course administration of lyophilised single-, three-, and live multistrain probiotic on obesity. METHODS: We included 70 rats divided into seven groups (n = 10 in each). Rats of group I were intact. Newborn rats of groups II-VII were injected with monosodium glutamate (MSG) (4 mg/g). Rats of group II (MSG-obesity group) were untreated. The group III-V received lyophilised monoprobiotics B...
October 12, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28993739/increased-subjective-distaste-and-altered-insula-activity-to-umami-tastant-in-patients-with-bulimia-nervosa
#14
Rikukage Setsu, Yoshiyuki Hirano, Miki Tokunaga, Toru Takahashi, Noriko Numata, Koji Matsumoto, Yoshitada Masuda, Daisuke Matsuzawa, Masaomi Iyo, Eiji Shimizu, Michiko Nakazato
The aim of this study was to examine differences in brain neural activation in response to monosodium glutamate (MSG), the representative component of umami, between patients with bulimia nervosa (BN) and healthy women (HW) controls. We analyzed brain activity after ingestion of an MSG solution using functional magnetic resonance imaging (fMRI) in a group of women with BN (n = 18) and a group of HW participants (n = 18). Both groups also provided a subjective assessment of the MSG solution via a numerical rating scale...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28954212/changes-in-the-expression-level-of-mapk-pathway-components-induced-by-monosodium-glutamate-administration-produce-neuronal-death-in-the-hippocampus-from-neonatal-rats
#15
Martha Catalina Rivera-Carvantes, José Jaime Jarero-Basulto, Alfredo Ignacio Feria-Velasco, Carlos Beas-Zárate, Mónica Navarro-Meza, Mariana Berenice González-López, Graciela Gudiño-Cabrera, Julio Cesar García-Rodríguez
Excessive Glutamate (Glu) release may trigger excitotoxic cellular death by the activation of intracellular signaling pathways that transduce extracellular signals to the cell nucleus, which determines the onset of a death program. One such signaling pathway is the mitogen-activated protein kinases (MAPK), which is involved in both survival and cell death. Experimental evidences from the use of specific inhibitors supports the participation of some MAPK pathway components in the excitotoxicity mechanism, but the complete process of this activation, which terminates in cell damage and death, is not clearly understood...
December 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/28946245/identification-of-a-novel-umami-compound-in-potatoes-and-potato-chips
#16
REVIEW
Liyun Zhang, Devin G Peterson
The influence of frying time on the taste profile of potato chips was characterized. Direct comparison of isolates from potato chip samples fried for 170s and 210s indicated longer frying time increased the perceived umami intensity and decreased the sour intensity. The compounds responsible for the greater umami intensity were identified as monosodium l-pyroglutamate (l-MSpG) and monosodium d-pyroglutamate (d-MSpG). The reduction in sour intensity was attributed to the degradation of d-chlorogenic acid. MSpGs were endogenous in raw potatoes and also thermally generated from glutamic acid during frying...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28943761/microbial-physicochemical-and-sensory-characteristics-of-quality-grade-2-beef-enhanced-by-injection-of-pineapple-concentrate-and-honey
#17
Ji Won Yoon, Da Gyeom Lee, Hyun Jung Lee, Juhui Choe, Samooel Jung, Cheorun Jo
This study investigated the effect of injecting pineapple concentrate and honey into low marbled beef in order to enhance its sensory qualities, particularly tenderness and flavor, without compromising its fresh appearance. Beef loin was injected with a solution of 6.0% pineapple concentrate, 2.5% honey, 0.5% monosodium L-glutamate, 0.5% phosphate, and 0.3% salt (w/w) to 120% (w/w) of initial meat weight and stored for 14 d. Non-injected beef loin served as a control. Total aerobic bacterial counts, surface meat color, shear force, reducing sugar content, and sensory evaluation of the beef were analyzed at 0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28943112/update-on-food-safety-of-monosodium-l-glutamate-msg
#18
REVIEW
Helen Nonye Henry-Unaeze
OBJECTIVE: This evidence-based safety review of the flavor enhancer monosodium l-glutamate (MSG) was triggered by its global use and recent studies expressing some safety concerns. METHODOLOGY: This article obtained information through search of evidence-based scientific databases, especially the US National Library of Medicine NIH. RESULTS: (A) MSG is a water-soluble salt of glutamate, a non-essential amino acid, normally synthesized in the body and prevalent in protein foods...
September 18, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28918254/permissive-role-for-mglu1-metabotropic-glutamate-receptors-in-excitotoxic-retinal-degeneration
#19
Francesca Liberatore, Domenico Bucci, Giada Mascio, Michele Madonna, Paola Di Pietro, Martina Beneventano, Alda Maria Puliti, Giuseppe Battaglia, Valeria Bruno, Ferdinando Nicoletti, Maria Rosaria Romano
Neuroprotection is an unmet need in eye disorders characterized by retinal ganglion cell (RGC) death, such as prematurity-induced retinal degeneration, glaucoma, and age-related macular degeneration. In all these disorders excitotoxicity is a prominent component of neuronal damage, but clinical data discourage the development of NMDA receptor antagonists as neuroprotectants. Here, we show that activation of mGlu1 metabotropic glutamate receptors largely contributes to excitotoxic degeneration of RGCs. Mice at postnatal day 9 were challenged with a toxic dose of monosodium glutamate (MSG, 3g/kg), which caused the death of >70% of Brn-3a(+) RGCs...
November 5, 2017: Neuroscience
https://www.readbyqxmd.com/read/28912088/sip-and-spit-or-sip-and-swallow-choice-of-method-differentially-alters-taste-intensity-estimates-across-stimuli
#20
Cordelia A Running, John E Hayes
While the myth of the tongue map has been consistently and repeatedly debunked in controlled studies, evidence for regional differences in suprathreshold intensity has been noted by multiple research groups. Given differences in physiology between the anterior and posterior tongue (fungiform versus foliate and circumvallate papillae) and differences in total area stimulated (anterior only versus whole tongue, pharynx, and epiglottis), small methodological changes (sip and spit versus sip and swallow) have the potential to substantially influence data...
November 1, 2017: Physiology & Behavior
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