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Glycine health

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https://www.readbyqxmd.com/read/27907139/contribution-towards-a-metabolite-profile-of-the-detoxification-of-benzoic-acid-through-glycine-conjugation-an-intervention-study
#1
Cindy Irwin, Mari van Reenen, Shayne Mason, Lodewyk J Mienie, Johan A Westerhuis, Carolus J Reinecke
Benzoic acid is widely used as a preservative in food products and is detoxified in humans through glycine conjugation. Different viewpoints prevail on the physiological significance of the glycine conjugation reaction and concerns have been raised on potential public health consequences following uncontrolled benzoic acid ingestion. We performed a metabolomics study which used commercial benzoic acid containing flavored water as vehicle for designed interventions, and report here on the controlled consumption of the benzoic acid by 21 cases across 6 time points for a total of 126 time points...
2016: PloS One
https://www.readbyqxmd.com/read/27891122/membrane-active-epithelial-keratin-6a-fragments-kamps-are-unique-human-antimicrobial-peptides-with-a-non-%C3%AE-%C3%AE-structure
#2
Judy T Y Lee, Guangshun Wang, Yu Tong Tam, Connie Tam
Antibiotic resistance is a pressing global health problem that threatens millions of lives each year. Natural antimicrobial peptides and their synthetic derivatives, including peptoids and peptidomimetics, are promising candidates as novel antibiotics. Recently, the C-terminal glycine-rich fragments of human epithelial keratin 6A were found to have bactericidal and cytoprotective activities. Here, we used an improved 2-dimensional NMR method coupled with a new protocol for structural refinement by low temperature simulated annealing to characterize the solution structure of these kerain-derived antimicrobial peptides (KAMPs)...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27881392/higher-serum-phenylalanine-concentration-is-associated-with-more-rapid-telomere-shortening-in-men
#3
Johan G Eriksson, Maria-Angela Guzzardi, Patricia Iozzo, Eero Kajantie, Hannu Kautiainen, Minna K Salonen
BACKGROUND: Telomere length and telomere shortening are associated with age-related health outcomes. Only a few studies have been able to longitudinally report on factors that are associated with changes in telomere length in an aging population. OBJECTIVE: We studied the longitudinal relation between telomere length, the change in telomere length, and circulating amino acids. DESIGN: A total of 812 subjects from the Helsinki Birth Cohort Study (born from 1934 to 1944), who underwent 3 clinical visits during a 10-y interval that included measurements of cardiometabolic risk factors, were included in the study...
November 23, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27854256/natural-deep-eutectic-solvents-nades-as-a-tool-for-bioavailability-improvement-pharmacokinetics-of-rutin-dissolved-in-proline-glycine-after-oral-administration-in-rats-possible-application-in-nutraceuticals
#4
Marta Faggian, Stefania Sut, Beatrice Perissutti, Valeria Baldan, Iztok Grabnar, Stefano Dall'Acqua
There is a need for innovation in plant-derived pharmaceuticals, food supplements and nutraceutical products regarding the use of more eco-sustainable solvents for their extraction. Furthermore, the poor oral bioavailability of several phytochemicals with health promoting effects stimulates the research in the field of pharmaceutical formulations. Natural Deep Eutectic Solvents (NADES) are formed by natural compounds, and can be considered as future solvents being especially useful for the preparation of nutraceuticals and food-grade extracts...
November 14, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27851765/development-of-a-freeze-dried-heat-stable-influenza-subunit-vaccine-formulation
#5
Alexander Flood, Marcus Estrada, David McAdams, Yuhua Ji, Dexiang Chen
An influenza pandemic remains a major public health concern. A key strategy to prevent a pandemic is to stockpile and pre-position stable influenza vaccine to allow rapid deployment in response to an outbreak. However, most influenza vaccines today are formulated as liquids that are stable only within a temperature range of 2°C to 8°C and require use of a cold chain, making vaccine transportation, distribution, and storage complicated and expensive, particularly for developing countries. To support the National Strategy for Pandemic Influenza preparedness in the United States and internationally, we developed two lead dry formulations of stable H1N1 influenza subunit vaccines using freeze-drying technology...
2016: PloS One
https://www.readbyqxmd.com/read/27822554/farnesoid-x-receptor-signaling-shapes-the-gut-microbiota-and-controls-hepatic-lipid-metabolism
#6
Limin Zhang, Cen Xie, Robert G Nichols, Siu H J Chan, Changtao Jiang, Ruixin Hao, Philip B Smith, Jingwei Cai, Margaret N Simons, Emmanuel Hatzakis, Costas D Maranas, Frank J Gonzalez, Andrew D Patterson
The gut microbiota modulates obesity and associated metabolic phenotypes in part through intestinal farnesoid X receptor (FXR) signaling. Glycine-β-muricholic acid (Gly-MCA), an intestinal FXR antagonist, has been reported to prevent or reverse high-fat diet (HFD)-induced and genetic obesity, insulin resistance, and fatty liver; however, the mechanism by which these phenotypes are improved is not fully understood. The current study investigated the influence of FXR activity on the gut microbiota community structure and function and its impact on hepatic lipid metabolism...
September 2016: MSystems
https://www.readbyqxmd.com/read/27798832/soy-and-gut-microbiota-interaction-and-implication-for-human-health
#7
Haiqiu Huang, Hari B Krishnan, Quynhchi Pham, Liangli Lucy Yu, Thomas T Y Wang
Soy (Glycine max) is a major commodity in the U.S. and soy foods are gaining popularity due to its reported health promoting effects. In the past two decades, soy and soy bioactive components have been studied for their health promoting/disease preventing activities and potential mechanisms of action. Recent studies have identified gut microbiota as an important component in the human body ecosystem and possibly a critical modulator of human health. Soy foods' interaction with the gut microbiota may critically influence many aspects of human development, physiology, immunity, and nutrition at different stages of life...
October 31, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27781556/mood-therapeutics-novel-pharmacological-approaches-for-treating-depression
#8
Ioline D Henter, Rafael T de Sousa, Philip W Gold, Andre R Brunoni, Carlos A Zarate, Rodrigo Machado-Vieira
Real-world effectiveness trials suggest that antidepressant efficacy is limited in many patients with mood disorders, underscoring the urgent need for novel therapeutics to treat these disorders. Areas Covered: Here, we review the clinical evidence supporting the use of novel modulators for the treatment of mood disorders, including specific glutamate modulators such as: 1) high-trapping glutamatergic modulators; 2) subunit (NR2B)-specific N-methyl-D-aspartate (NMDA) receptor antagonists; 3) NMDA receptor glycine-site partial agonists; and 4) metabotropic glutamate receptor (mGluR) modulators...
October 26, 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/27757515/high-throughput-and-simultaneous-quantitative-analysis-of-homocysteine-methionine-cycle-metabolites-and-co-factors-in-blood-plasma-and-cerebrospinal-fluid-by-isotope-dilution-lc-ms-ms
#9
Seu Ping Guiraud, Ivan Montoliu, Laeticia Da Silva, Loïc Dayon, Antonio Núñez Galindo, John Corthésy, Martin Kussmann, Francois-Pierre Martin
The methionine cycle is a key pathway contributing to the regulation of human health, with well-established involvement in cardiovascular diseases and cognitive function. Changes in one-carbon cycle metabolites have also been associated with mild cognitive decline, vascular dementia, and Alzheimer's disease. Today, there is no single analytical method to monitor both metabolites and co-factors of the methionine cycle. To address this limitation, we here report for the first time a new method for the simultaneous quantitation of 17 metabolites in the methionine cycle, which are homocysteic acid, taurine, serine, cysteine, glycine, homocysteine, riboflavin, methionine, pyridoxine, cystathionine, pyridoxamine, S-adenosylhomocysteine, S-adenosylmethionine, betaine, choline, dimethylglycine, and 5-methyltetrahydrofolic acid...
October 18, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27739310/-glycine-n-methyltransferase-and-malignant-diseases-of-the-prostate
#10
Z Heger, T Eckschlager, M Stiborová, V Adam
BACKGROUND: Prostate cancer (PC) constitutes a heterogeneous group of diseases with high prevalence rates that are still increasing, particularly in western countries. Since 1980, prostate specific antigen (PSA) and other diagnostic approaches have been used for PC screening; however, some of these approaches are often deemed painful and cause invasive damage of tissue. Therefore, molecular approaches to PC diagnosis are attracting increasing attention, potentially providing patients with less stressful situations and providing better diagnoses and even prognostic information...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27733529/dietary-intake-of-protein-in-early-childhood-is-associated-with-growth-trajectories-between-1-and-9-years-of-age
#11
Kim Ve Braun, Nicole S Erler, Jessica C Kiefte-de Jong, Vincent Wv Jaddoe, Edith H van den Hooven, Oscar H Franco, Trudy Voortman
BACKGROUND: High protein intake in infancy might lead to a higher body mass index (BMI) in childhood. However, whether these associations differ between different sources of protein is unclear. OBJECTIVE: We investigated associations between the intake of total protein, protein from different sources, and individual amino acids in early childhood and repeatedly measured height, weight, and BMI up to the age of 9 y. METHODS: This study was performed in 3564 children participating in the Generation R Study, a population-based prospective cohort study in Rotterdam, Netherlands...
October 12, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27677719/botanicals-and-their-bioactive-phytochemicals-for-women-s-health
#12
Birgit M Dietz, Atieh Hajirahimkhan, Tareisha L Dunlap, Judy L Bolton
Botanical dietary supplements are increasingly popular for women's health, particularly for older women. The specific botanicals women take vary as a function of age. Younger women will use botanicals for urinary tract infections, especially Vaccinium macrocarpon (cranberry), where there is evidence for efficacy. Botanical dietary supplements for premenstrual syndrome (PMS) are less commonly used, and rigorous clinical trials have not been done. Some examples include Vitex agnus-castus (chasteberry), Angelica sinensis (dong quai), Viburnum opulus/prunifolium (cramp bark and black haw), and Zingiber officinale (ginger)...
October 2016: Pharmacological Reviews
https://www.readbyqxmd.com/read/27660165/identification-of-homogentisate-dioxygenase-as-a-target-for-vitamin-e-biofortification-in-oilseeds
#13
Minviluz Garcia Stacey, Rebecca E Cahoon, Hanh T Nguyen, Cuong T Nguyen, Yaya Cui, Shirley Sato, Nongnat Phoka, Kerry M Clark, Yan Liang, Josef M Batek, Joe Forrester, Phat Tien Do, David A Sleper, Tom E Clemente, Edgar B Cahoon, Gary Stacey
Soybean (Glycine max L.) is a major plant source of protein and oil and produces important secondary metabolites beneficial for human health. As a tool for gene function discovery and improvement of this important crop, a mutant population was generated using fast neutron irradiation. Visual screening of mutagenized seeds identified a mutant line, designated MO12, which produced brown seeds as opposed to the yellow seeds produced by the unmodified Williams 82 parental cultivar. Using forward genetic methods combined with comparative genome hybridization (CGH) analysis, we were able to establish that deletion of the GmHGO1 gene is the genetic basis of the brown seeded phenotype exhibited by the MO12 mutant line...
September 22, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27641100/one-carbon-metabolism-in-health-and-disease
#14
Gregory S Ducker, Joshua D Rabinowitz
One-carbon (1C) metabolism, mediated by the folate cofactor, supports multiple physiological processes. These include biosynthesis (purines and thymidine), amino acid homeostasis (glycine, serine, and methionine), epigenetic maintenance, and redox defense. Both within eukaryotic cells and across organs, 1C metabolic reactions are compartmentalized. Here we review the fundamentals of mammalian 1C metabolism, including the pathways active in different compartments, cell types, and biological states. Emphasis is given to recent discoveries enabled by modern genetics, analytical chemistry, and isotope tracing...
September 8, 2016: Cell Metabolism
https://www.readbyqxmd.com/read/27589702/arginine-new-insights-into-growth-performance-and-urinary-metabolomic-profiles-of-rats
#15
Guangmang Liu, Xianjian Wu, Gang Jia, Xiaoling Chen, Hua Zhao, Jing Wang, Caimei Wu, Jingyi Cai
Arginine regulates growth performance, nutrient metabolism and health effects, but the underlying mechanism remains unknown. This study aims to investigate the effect of dietary arginine supplementation on rat growth performance and urinary metabolome through ¹H-NMR spectroscopy. Twenty rats were randomly assigned to two groups supplemented with 0% or 1.0% l-arginine for 4 weeks. Urine samples were analyzed through NMR-based metabolomics. Arginine supplementation significantly increased the urine levels of 4-aminohippurate, acetate, creatine, creatinine, ethanolamine, formate, hippurate, homogentisate, indoxyl sulfate, and phenylacetyglycine...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27587234/effects-of-hypoxia-in-the-gills-of-the-manila-clam-ruditapes-philippinarum-using-nmr-based-metabolomics
#16
Ying Zhang, Huifeng Wu, Lei Wei, Zeping Xie, Bo Guan
Coastal hypoxia affects the survival, behavior, and reproduction of individual local marine organisms, and the abundance, biomass, and biodiversity of coastal ecosystems. In this study, we investigated the chronic effects of hypoxia on the metabolomics in the gills of Ruditapes (R.) philippinarum. The results indicated significant alterations in the metabolite profiles in the gills of the hypoxia-treated clams, in comparison with those maintained under normoxia. The levels of betaine, taurine, glycine, isoleucine, and alanine were significantly reduced, suggesting a disturbance of osmotic balance associated with hypoxia...
August 29, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27553280/the-collagen-derived-dipeptide-hydroxyprolyl-glycine-promotes-c2c12-myoblast-differentiation-and-myotube-hypertrophy
#17
Tomoya Kitakaze, Tomotaka Sakamoto, Takehiro Kitano, Naoki Inoue, Fumihito Sugihara, Naoki Harada, Ryoichi Yamaji
The majority of studies on possible roles for collagen hydrolysates in human health have focused on their effects on bone and skin. Hydroxyprolyl-glycine (Hyp-Gly) was recently identified as a novel collagen hydrolysate-derived dipeptide in human blood. However, any possible health benefits of Hyp-Gly remain unclear. Here, we report the effects of Hyp-Gly on differentiation and hypertrophy of murine skeletal muscle C2C12 cells. Hyp-Gly increased the fusion index, the myotube size, and the expression of the myotube-specific myosin heavy chain (MyHC) and tropomyosin structural proteins...
September 23, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27527211/urinary-metabolomic-approach-provides-new-insights-into-distinct-metabolic-profiles-of-glutamine-and-n-carbamylglutamate-supplementation-in-rats
#18
Guangmang Liu, Wei Cao, Tingting Fang, Gang Jia, Hua Zhao, Xiaoling Chen, Caimei Wu, Jing Wang
Glutamine and N-carbamylglutamate can enhance growth performance and health in animals, but the underlying mechanisms are not yet elucidated. This study aimed to investigate the effect of glutamine and N-carbamylglutamate supplementation in rat metabolism. Thirty rats were fed a control, glutamine, or N-carbamylglutamate diet for four weeks. Urine samples were analyzed by nuclear magnetic resonance (NMR)-based metabolomics, specifically high-resolution ¹H NMR metabolic profiling combined with multivariate data analysis...
2016: Nutrients
https://www.readbyqxmd.com/read/27500855/short-term-effects-of-air-temperature-on-plasma-metabolite-concentrations-in-patients-undergoing-cardiac-catheterization
#19
Regina Hampel, Susanne Breitner, William E Kraus, Elizabeth Hauser, Svati Shah, Cavin K Ward-Caviness, Robert Devlin, David Diaz-Sanchez, Lucas Neas, Wayne Cascio, Annette Peters, Alexandra Schneider
BACKGROUND: Epidemiological studies have shown associations between air temperature and cardiovascular health outcomes. Metabolic dysregulation might also play a role in the development of cardiovascular disease. OBJECTIVES: To investigate short-term temperature effects on metabolites related to cardiovascular disease. METHODS: Concentrations of 45 acylcarnitines, 15 amino acids, ketone bodies and total free fatty acids were available in 2869 participants from the CATHeterization GENetics cohort recruited at the Duke University Cardiac Catheterization Clinic (Durham, NC) between 2001 and 2007...
August 5, 2016: Environmental Research
https://www.readbyqxmd.com/read/27433836/identification-of-telomerase-activating-blends-from-naturally-occurring-compounds
#20
Ghania Ait-Ghezala, Samira Hassan, Miles Tweed, Daniel Paris, Gogce Crynen, Zuchra Zakirova, Stefan Crynen, Fiona Crawford
Context • Telomeres are repeated deoxyribonucleic acid (DNA) sequences (TTAGGG) that are located on the 5' ends of chromosomes, and they control the life span of eukaryotic cells. Compelling evidence has shown that the length of a person's life is dictated by the limited number of times that a human cell can divide. The enzyme telomerase has been shown to bind to and extend the length of telomeres. Thus, strategies for activating telomerase may help maintain telomere length and, thus, may lead to improved health during aging...
June 2016: Alternative Therapies in Health and Medicine
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