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Metabolomic acetate

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https://www.readbyqxmd.com/read/29453063/-1-h-nmr-based-metabolomics-reveals-interactive-effects-between-the-carrier-solvent-methanol-and-a-pharmaceutical-mixture-in-an-amphibian-developmental-bioassay-with-limnodynastes-peronii
#1
Steven D Melvin, Oliver A H Jones, Anthony R Carroll, Frederic D L Leusch
Organic carrier solvents are used in aquatic toxicity testing to improve chemical solubility and facilitate the exploration of dose-response relationships. Both water- and solvent-control groups are normally included in these scenarios to ensure that the solvent itself has no effect on the test organism, but this fails to consider possible interactive effects between carrier solvents and contaminants of interest. We explored this topic by exposing Limnodynastes peronii tadpoles to a mixture of common water-soluble pharmaceuticals (diclofenac, metformin and valproic acid) in the presence and absence of the carrier solvent methanol, according to standard developmental bioassay methodology...
February 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29433240/a-gc-ms-based-metabolomics-approach-to-determine-the-effect-of-salinity-on-kimchi
#2
Seung-Ho Seo, Seong-Eun Park, Eun-Ju Kim, Kyoung-In Lee, Chang-Su Na, Hong-Seok Son
GC-MS datasets coupled with multivariate statistical analysis were used to investigate metabolic changes in Kimchi during fermentation and metabolic differences in Kimchi added with various amounts (0, 1.25, 2.5, and 5%) of salts. PCA score plot obtained after 1day of fermentation were clearly distinguishable by different salinity groups, implying that early fermentation speed varied according to Kimchi salinity. PLS-DA score plot from data obtained on the 50th day of fermentation also showed a clear separation, indicating metabolites of Kimchi were different according to salinity...
March 2018: Food Research International
https://www.readbyqxmd.com/read/29422013/first-and-second-trimester-urinary-metabolic-profiles-and-fetal-growth-restriction-an-exploratory-nested-case-control-study-within-the-infant-development-and-environment-study
#3
Gauri Luthra, Ivan Vuckovic, A Bangdiwala, H Gray, J B Redmon, E S Barrett, S Sathyanarayana, R H N Nguyen, S H Swan, S Zhang, P Dzeja, S I Macura, K S Nair
BACKGROUND: Routine prenatal care fails to identify a large proportion of women at risk of fetal growth restriction (FGR). Metabolomics, the comprehensive analysis of low molecular weight molecules (metabolites) in biological samples, can provide new and earlier biomarkers of prenatal health. Recent research has suggested possible predictive first trimester urine metabolites correlating to fetal growth restriction in the third trimester. Our objective in this current study was to examine urinary metabolic profiles in the first and second trimester of pregnancy in relation to third trimester FGR in a US population from a large, multi-center cohort study of healthy pregnant women...
February 8, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29421944/metabolomic-evaluation-of-euphorbia-pekinensis-induced-nephrotoxicity-in-rats
#4
Zhenzhen Liu, Yan Zeng, Pengyi Hou
CONTEXT: Euphorbia pekinensis Rupr. (Euphorbiaceae) has long been used in the Orient, while its clinical use was limited due to its nephrotoxic effect. OBJECTIVE: The possible mechanism of nephrotoxicity of Euphorbia pekinensis (EPR) and its related constituents were investigated. MATERIALS AND METHODS: Petroleum ether (PE), acetic ether (AE) and n-butanol (BUT) extracted sections of EPR were separately given to Wistar rats by gavage at the dose of 3 g/kg/day for 10 weeks to determine the nephrotoxic section of EPR...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29416446/urinary-metabolic-profiling-of-asymptomatic-acute-intermittent-porphyria-using-a-rule-mining-based-algorithm
#5
Margaux Luck, Caroline Schmitt, Neila Talbi, Laurent Gouya, Cédric Caradeuc, Hervé Puy, Gildas Bertho, Nicolas Pallet
Introduction: Metabolomic profiling combines Nuclear Magnetic Resonance spectroscopy with supervised statistical analysis that might allow to better understanding the mechanisms of a disease. Objectives: In this study, the urinary metabolic profiling of individuals with porphyrias was performed to predict different types of disease, and to propose new pathophysiological hypotheses. Methods: Urine 1H-NMR spectra of 73 patients with asymptomatic acute intermittent porphyria (aAIP) and familial or sporadic porphyria cutanea tarda (f/sPCT) were compared using a supervised rule-mining algorithm...
2018: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/29406718/metabolomics-analysis-reveals-that-ethylene-and-methyl-jasmonate-regulate-different-branch-pathways-to-promote-the-accumulation-of-terpenoid-indole-alkaloids-in-catharanthus-roseus
#6
Xiao-Ning Zhang, Jia Liu, Yang Liu, Yu Wang, Ann Abozeid, Zhi-Guo Yu, Zhong-Hua Tang
The medicinal plant Catharanthus roseus accumulates large numbers of terpenoid indole alkaloids (TIAs), including the pharmaceutically important vinblastine, vincristine, ajmalicine, and serpentine. The phytohormone ethylene or methyl jasmonate (MeJA) can markedly enhance alkaloid accumulation. The interaction between ethylene or MeJA in the regulation of TIA biosynthesis in C. roseus is unknown. Here, a metabolomics platform is reported that is based on liquid chromatography (LC) coupled with time-of-flight mass spectrometry to study candidate components for TIA biosynthesis, which is controlled by ethylene or MeJA in C...
February 6, 2018: Journal of Natural Products
https://www.readbyqxmd.com/read/29389906/indole-3-acetic-acid-biosynthesis-pathways-in-the-plant-beneficial-bacterium-arthrobacter-pascens-zz21
#7
Mengsha Li, Rui Guo, Fei Yu, Xu Chen, Haiyan Zhao, Huixin Li, Jun Wu
Arthrobacter pascens ZZ21 is a plant-beneficial, fluoranthene-degrading bacterial strain found in the rhizosphere. The production of the phytohormone indole-3-aectic acid (IAA) by ZZ21 is thought to contribute to its ability to promote plant growth and remediate fluoranthene-contaminated soil. Using genome-wide analysis combined with metabolomic and high-performance liquid chromatography-mass spectrometry (HPLC-MS) analyses, we characterized the potential IAA biosynthesis pathways in A. pascens ZZ21. IAA production increased 4...
February 1, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29372038/metabolomics-diagnostic-approach-to-mustard-airway-diseases-a-preliminary-study
#8
BiBi Fatemeh Nobakht Mothlagh Ghoochani, Rasoul Aliannejad, Afsaneh Arefi Oskouie, Mostafa Rezaei-Tavirani, Shiva Kalantari, Mohammad Taghi Naseri, Alireza Akbarzadeh Baghban, Hadi Parastar, Ghazaleh Aliakbarzadeh
Objectives: This study aims to evaluate combined proton nuclear magnetic resonance (1H NMR) spectroscopy and gas chromatography-mass spectrometry (GC-MS) metabolic profiling approaches, for discriminating between mustard airway diseases (MADs) and healthy controls and for providing biochemical information on this disease. Materials and Methods: In the present study, analysis of serum samples collected from 17 MAD subjects and 12 healthy controls was performed using NMR...
January 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29366719/microbe-participation-in-aroma-production-during-soy-sauce-fermentation
#9
Risa Harada, Masanobu Yuzuki, Kotaro Ito, Kazuki Shiga, Takeshi Bamba, Eiichiro Fukusaki
Soy sauce is a traditional Japanese fermented seasoning that contains various constituents such as amino acids, organic acids, and volatiles that are produced during the long fermentation process. Although studies regarding the correlation between microbes and aroma constituents have been performed, there are no reports about the influences of the microbial products, such as lactic acid, acetic acid, and ethanol, during fermentation. Because it is known that these compounds contribute to microbial growth and to changes in the constituent profile by altering the moromi environment, understanding the influence of these compounds is important...
January 20, 2018: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29342836/cool-climate-red-wines-chemical-composition-and-comparison-of-two-protocols-for-%C3%A2-h-nmr-analysis
#10
Violetta Aru, Klavs Martin Sørensen, Bekzod Khakimov, Torben Bo Toldam-Andersen, Søren Balling Engelsen
This study investigates the metabolome of 26 experimental cool-climate wines made from 22 grape varieties using two different protocols for wine analysis by proton nuclear magnetic resonance (¹H-NMR) spectroscopy. The wine samples were analyzed as-is (wet) and as dried samples. The NMR datasets were preprocessed by alignment and mean centering. No normalization or scaling was performed. The "wet" method preserved the inherent properties of the samples and provided a fast and effective overview of the molecular composition of the wines...
January 13, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29341105/metabolomic-characterization-of-human-hippocampus-from-drug-resistant-epilepsy-with-mesial-temporal-seizure
#11
Julien Detour, Caroline Bund, Charles Behr, Hélène Cebula, Ercument A Cicek, Maria-Paola Valenti-Hirsch, Béatrice Lannes, Benoît Lhermitte, Astrid Nehlig, Pierre Kehrli, François Proust, Edouard Hirsch, Izzie-Jacques Namer
OBJECTIVE: Within a complex systems biology perspective, we wished to assess whether hippocampi with established neuropathological features have distinct metabolome. Apparently normal hippocampi with no signs of sclerosis (noHS), were compared to hippocampal sclerosis (HS) type 1 (HS1) and/or type 2 (HS2). Hippocampus metabolome from patients with epilepsy-associated neuroepithelial tumors (EANTs), namely, gangliogliomas (GGs) and dysembryoplastic neuroepithelial tumors (DNTs), was also compared to noHS epileptiform tissue...
January 17, 2018: Epilepsia
https://www.readbyqxmd.com/read/29339827/the-impact-of-so2-on-wine-flavanols-and-indoles-in-relation-to-wine-style-and-age
#12
Panagiotis Arapitsas, Graziano Guella, Fulvio Mattivi
Wine has one of the broadest chemical profiles, and the common oenological practice of adding the antioxidant and antimicrobial sulfur dioxide has a major impact on its metabolomic fingerprint. In this study, we investigated novel discovered oenological reactions primarily occurring between wine metabolites and sulfur dioxide. The sulfonated derivatives of epicatechin, procyanidin B2, indole acetic acid, indole lactic acid and tryptophol were synthesized and for the first time quantified in wine. Analysis of 32 metabolites in 195 commercial wines (1986-2016 vintages) suggested that sulfonation of tryptophan metabolites characterised white wines, in contrast to red wines, where sulfonation of flavanols was preferred...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29241669/cytokine-contributions-to-alterations-of-the-volatile-metabolome-induced-by-inflammation
#13
Patrick Millet, Maryanne Opiekun, Talia Martin, Gary K Beauchamp, Bruce A Kimball
Several studies demonstrate that inflammation affects body odor. Volatile signals associated with inflammation induced by pyrogens like LPS are detectable both by conspecifics and chemical analyses. However, little is known about the mechanisms which translate detection of a foreign molecule or pathogen into a unique body odor, or even how unique that odor may be. Here, we utilized C57BL/6J trained mice to identify the odor of LPS-treated conspecifics to investigate potential pathways between LPS-induced inflammation and changes in body odor, as represented by changes in urine odor...
December 11, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29227833/vitamin-a-deficiency-in-mice-alters-host-and-gut-microbial-metabolism-leading-to-altered-energy-homeostasis
#14
Yuan Tian, Robert G Nichols, Jingwei Cai, Andrew D Patterson, Margherita T Cantorna
Vitamin A deficiency (A-) is a worldwide public health problem. To better understand how vitamin A status influences gut microbiota and host metabolism, we systematically analyzed urine, cecum, serum and liver samples from vitamin A sufficient (A+) and deficient (A-) mice using 1H NMR-based metabolomics, quantitative (q)PCR and 16S rRNA gene sequencing coupled with multivariate data analysis. The microbiota in the cecum of A- mice showed compositional as well as functional shifts compared to the microbiota from A+ mice...
November 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29226610/nuclear-magnetic-resonance-based-metabolomics-identifies-phenylalanine-as-a-novel-predictor-of-incident-heart-failure-hospitalisation-results-from-prosper-and-finrisk-1997
#15
Christian Delles, Naomi J Rankin, Charles Boachie, Alex McConnachie, Ian Ford, Antti Kangas, Pasi Soininen, Stella Trompet, Simon P Mooijaart, J Wouter Jukema, Faiez Zannad, Mika Ala-Korpela, Veikko Salomaa, Aki S Havulinna, Paul Welsh, Peter Würtz, Naveed Sattar
AIMS: We investigated the association between quantified metabolite, lipid and lipoprotein measures and incident heart failure hospitalisation (HFH) in the elderly, and examined whether circulating metabolic measures improve HFH prediction. METHODS AND RESULTS: Overall, 80 metabolic measures from the PROspective Study of Pravastatin in the Elderly at Risk (PROSPER) trial were measured by proton nuclear magnetic resonance spectroscopy (n = 5341; 182 HFH events during 2...
December 11, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29205045/colon-ascendens-stent-peritonitis-casp-induces-excessive-inflammation-and-systemic-metabolic-dysfunction-in-a-septic-rat-model
#16
Limin Zhang, Yuan Tian, Jianfen Yang, Jieshou Li, Huiru Tang, Yulan Wang
The colon ascendens stent peritonitis (CASP) surgery creates a leakage of intestinal contents, resulting in polymicrobial sepsis associated with a high risk for postoperative multiple organ failure and death in surgical patients. To evaluate the effects of CASP on multiple organs, we analyzed the systemic metabolic consequences in liver, kidney, lung and heart of rats after CASP by employing a combination of metabolomics, clinical chemistry and biological assays. We found that CASP surgery after 18 h caused significant elevations of lipid, amino acids, acetate, choline, PC and GPC in rat liver together with significant depletion of glucose and glycogen...
December 5, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29199568/lingzhi-or-reishi-medicinal-mushroom-ganoderma-lucidum-agaricomycetes-inhibits-candida-biofilms-a-metabolomic-approach
#17
Anuja Bhardwaj, Payal Gupta, Navin Kumar, Jigni Mishra, Ajai Kumar, Rajput Rakhee, Kshipra Misra
This article presents a comparative gas chromatography (GC)-mass spectrometry (MS)-based metabolomic analysis of mycelia and fruiting bodies of the medicinal mushroom Ganoderma lucidum. Three aqueous extracts-mycelia, fruiting bodies, and a mixture of them-and their sequential fractions (methanolic and ethyl acetate), prepared using an accelerated solvent extractor, were characterized by GC-MS to determine volatile organic compounds and by high-performance thin-layer chromatography to quantify ascorbic acid, a potent antioxidant...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29196291/shotgun-metagenomics-and-volatilome-profile-of-the-microbiota-of-fermented-sausages
#18
Ilario Ferrocino, Alberto Bellio, Manuela Giordano, Guerrino Macori, Angelo Romano, Kalliopi Rantsiou, Lucia Decastelli, Luca Cocolin
Changes in the microbial gene content and abundance can be analyzed to detect shifts in the microbiota composition due to the use of a starter culture in food fermentation process with the consequent shift of key metabolic pathways directly connected with product acceptance. Meat fermentation is a complex process involving microbes that metabolize the main components in meat. The breakdown of carbohydrates, proteins and lipids can lead to the formation of volatile organic compounds (VOCs) that can drastically affect the organoleptic characteristics of the final products...
December 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29195936/1h-nmr-based-metabolomic-fingerprinting-to-determine-metabolite-levels-in-serrano-peppers-capsicum-annum-l-grown-in-two-different-regions
#19
Elvia Becerra-Martínez, Elideth Florentino-Ramos, Nury Pérez-Hernández, L Gerardo Zepeda-Vallejo, Nemesio Villa-Ruano, Manuel Velázquez-Ponce, Felipe García-Mendoza, Angel E Bañuelos-Hernández
Chili pepper (Capsicum annuum) is the most important and emblematic condiment in Mexican food. Serrano pepper is a variety of C. annuum that is traditionally cultivated in Mexico and commercialized in local markets. The aim of this study was to describe the 1H NMR metabolomic profiling of the aqueous phase of serrano peppers harvested from two distinct regions, in the states of Veracruz and Oaxaca, Mexico. According to the current results, aspartate citrate, lactate, leucine and sucrose were found at higher amount in the serrano peppers from Veracruz...
December 2017: Food Research International
https://www.readbyqxmd.com/read/29178373/geographic-impact-evaluation-of-the-quality-of-alismatis-rhizoma-by-untargeted-metabolomics-and-quantitative-assay
#20
Jia Wu, Wenzhi Yang, Huiqin Pan, Shuai Yao, Wanying Wu, Dean Guo
The geographic impact on the quality of Alismatis Rhizoma (derived from the tuber of Alisma orientale), a reputable diuretic traditional Chinese medicine, has seldom been evaluated. Here a metabolomics-driven approach targeting the bioactive protostane triterpenes was developed, by incorporating ultra high performance liquid chromatography with quadrupole time-of-flight mass spectrometry based untargeted metabolite profiling and multiple reaction monitoring quantitative assay, to probe the triterpene differences between Alismatis Rhizoma samples collected from Sichuan, Fujian, and Jiangxi Provinces...
November 27, 2017: Journal of Separation Science
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