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https://www.readbyqxmd.com/read/29161611/the-application-of-ion-mobility-mass-spectrometry-to-metabolomics
#1
REVIEW
Xing Zhang, Kevin Quinn, Charmion Cruickshank-Quinn, Richard Reisdorph, Nichole Reisdorph
Mass spectrometry-based metabolomics is being increasingly utilized in various research fields including investigating human diseases, nutrition, industrial applications, and plant/natural products studies. Although new analytical approaches have enhanced the performance of metabolomic analyses, significant challenges associated with throughput, metabolome coverage, and compound identification still exist. Ion mobility mass spectrometry offers great potential for improving throughput and depth of coverage in metabolomics experiments...
November 18, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/29161511/a-customizable-flow-injection-system-for-automated-high-throughput-and-time-sensitive-ion-mobility-spectrometry-and-mass-spectrometry-measurements
#2
Daniel J Orton, Malak M Tfaily, Ronald J Moore, Brian L LaMarche, Xueyun Zheng, Thomas L Fillmore, Rosalie K Chu, Karl K Weitz, Matthew E Monroe, Ryan T Kelly, Richard D Smith, Erin Shammel Baker
To better understand disease conditions and environmental perturbations, multi-omic studies combining proteomic, lipidomic, and metabolomic analyses are vastly increasing in popularity. In a multi-omic study, a single sample is typically extracted in multiple ways and various analyses are performed using different instruments. Thus, one sample becomes many measurements, making high throughput and reproducible evaluations a necessity. One way to address the numerous samples and varying instrumental conditions is to utilize a flow injection analysis (FIA) system for rapid sample injection...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29161329/comparative-metabolomics-profiling-of-engineered-saccharomyces-cerevisiae-lead-to-a-strategy-that-improving-%C3%AE-carotene-production-by-acetate-supplementation
#3
Xiao Bu, Liang Sun, Fei Shang, Guoliang Yan
A comparative metabolomic analysis was conducted on recombinant Saccharomyces cerevisiae strain producing β-carotene and the parent strain cultivated with glucose as carbon source using gas chromatography-mass spectrometry (GC-MS), high performance liquid chromatography-mass spectrometry (HPLC-MS) and ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) based approach. The results showed that most of the central intermediates associated with amino acids, carbohydrates, glycolysis and TCA cycle intermediates (acetic acid, glycerol, citric acid, pyruvic acid and succinic acid), fatty acids, ergosterol and energy metabolites were produced in a lower amount in recombinant strain, as compared to the parent strain...
2017: PloS One
https://www.readbyqxmd.com/read/29160924/accelerated-untargeted-metabolomics-analysis-of-cutaneous-t-cell-lymphoma-reveal-metabolic-shifts-in-plasma-and-tumor-adjacent-skins-of-xenograft-mice
#4
Yunchen Le, Xiaoyan Shen, Hongyan Kang, Qizheng Wang, Kejia Li, Jie Zheng, Yunqiu Yu
Cutaneous T-cell lymphoma (CTCL) is a heterogeneous group of skin-homing T-cell neoplasms. Clinical management is stage based but diagnosis and prognosis could be extremely challenging. The presented study aims to explore the metabolic profiling of CTCL by an accelerated untargeted metabolomics data analysis tool "mummichog" to facilitate the discoveries of potential biomarkers for clinical early-stage diagnosis, prognosis and treatments in CTCL. Ultra-high-performance liquid chromatography-quadrupole time-of-flight (UHPLC-QTOF) based untargeted metabolomics were conducted on the skin and plasma of CTCL mice...
November 21, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/29160327/imbalance-in-amino-acid-and-purine-metabolisms-at-the-hypothalamus-in-inflammation-associated-depression-by-gc-ms
#5
Yu Wu, Yonghong Li, Yanjuan Jia, Chaojun Wei, Hui Xu, Rui Guo, Yuanting Li, Jing Jia, Xiaoming Qi, Xiaoling Gao
Hypothalamic dysfunction is a key factor in depression; increasing evidence highlights neuroinflammation abnormalities as well as imbalances in neurotransmitters and the purinergic system in the pathophysiology of depression. However, little is known about the metabolomic changes in the hypothalamus of depressed patients with neuroinflammation. Herein, taking advantage of the well-established lipopolysaccharide (LPS)-induced depression mouse model, we measured metabolic changes in the hypothalamus using gas chromatography-mass spectrometry (GC-MS)...
November 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/29159981/understanding-the-metabolic-burden-of-recombinant-antibody-production-in-saccharomyces-cerevisiae-using-a-quantitative-metabolomics-approach
#6
Jorg C de Ruijter, Essi V Koskela, Jatin Nandania, Alexander D Frey, Vidya Velagapudi
The cellular changes induced by heterologous protein expression in the yeast Saccharomyces cerevisiae have been analyzed on many levels and found to be significant. However, even though high-level protein production poses a metabolic burden, evaluation of the expression host at the level of the metabolome has often been neglected. We present a comparison of metabolite profiles of a wild-type strain with those of three strains producing recombinant antibody variants of increasing size and complexity: a scFv fragment, a scFv-Fc fusion protein, and a full-length IgG molecule...
November 20, 2017: Yeast
https://www.readbyqxmd.com/read/29159325/role-of-aramchol-in-steatohepatitis-and-fibrosis-in-mice
#7
Marta Iruarrizaga-Lejarreta, Marta Varela-Rey, David Fernández-Ramos, Ibon Martínez-Arranz, Teresa C Delgado, Jorge Simon, Virginia Gutiérrez-de Juan, Laura delaCruz-Villar, Mikel Azkargorta, José L Lavin, Rebeca Mayo, Sebastiaan M Van Liempd, Igor Aurrekoetxea, Xabier Buqué, Donatella Delle Cave, Arantza Peña, Juan Rodríguez-Cuesta, Ana M Aransay, Felix Elortza, Juan M Falcón-Pérez, Patricia Aspichueta, Liat Hayardeny, Mazen Noureddin, Arun J Sanyal, Cristina Alonso, Juan Anguita, María Luz Martínez-Chantar, Shelly C Lu, José M Mato
Nonalcoholic steatohepatitis (NASH) is the advanced form of nonalcoholic fatty liver disease (NAFLD) which sets the stage for further liver damage. The mechanism for the progression of NASH involves multiple parallel hits including oxidative stress, mitochondrial dysfunction, inflammation and others. Manipulation of any of these pathways may be an approach to prevent NASH development and progression. Aramchol (arachidyl-amido cholanoic acid) is presently in a phase IIb NASH study. The aim of this study was to investigate Aramchol's mechanism of action and its effect on fibrosis using the methionine- and choline-deficient (MCD) diet model of NASH...
November 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29159024/application-of-1-h-nmr-based-metabolomics-for-discrimination-of-different-parts-and-development-of-a-new-processing-workflow-for-cistanche-deserticola
#8
Pingping Zou, Yuelin Song, Wei Lei, Jun Li, Pengfei Tu, Yong Jiang
Cistanche deserticola (CD) is one of the two authoritative source plants of Cistanches Herba, a well-known medicinal plant. Herein, (1)H NMR spectroscopy was employed to characterize the chemical profile and to distinguish the different parts, as well as to propose a new processing workflow for CD. Signal assignment was achieved by multiple one and two dimensional NMR spectroscopic techniques in combination with available databases and authentic compounds. The upper parts of the plant were distinguished from the lower parts by combining (1)H NMR spectroscopic dataset with multivariate statistical analysis...
November 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/29158712/high-resolution-uhplc-ms-characterization-and-isolation-of-main-compounds-from-the-antioxidant-medicinal-plant-parastrephia-lucida-meyen
#9
Carlos Echiburu-Chau, Leyla Pastén, Claudio Parra, Jorge Bórquez, Andrei Mocan, Mario J Simirgiotis
High-resolution mass spectrometry is currently used to determine the mass of biologically active compounds in medicinal plants and food and UHPLC-Orbitrap is a relatively new technology that allows fast fingerprinting and metabolomics analysis. Forty-two metabolites including several phenolic acids, flavonoids, coumarines, tremetones and ent-clerodane diterpenes were accurately identified for the first time in the resin of the medicinal plant Parastrephia lucida (Asteraceae) a Chilean native species, commonly called umatola, collected in the pre-cordillera and altiplano regions of northern Chile, by means of UHPLC-PDA-HR-MS...
November 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/29158542/metabolic-profiling-of-umbilical-cord-blood-in-macrosomia
#10
H Sun, Y Wang, C Wang, X Xu, Y Wang, H Yan, X Yang
BACKGROUND/OBJECTIVE: The term macrosomia is used to describe neonates with a birth weight of 4000 g or more. Macrosomia is a potential risk factor for obesity and metabolic syndromes in postnatal and adult life, yet little is known about its associations with metabolic difference in the early-age. We performed metabolic profiling of umbilical cord blood to discover differential metabolites of macrosomia. METHODS: We conducted a case-control study of full-term singletons with normal maternal glucose tolerance [50 cases (macrosomia, birth weight ⩾4000 g); 50 controls (normal weight, birth weight 2500-3999 g)]...
November 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29158425/improving-metabolic-health-through-precision-dietetics-in-mice
#11
William T Barrington, Phillip Wulfridge, Ann E Wells, Carolina Mantilla Rojas, Selene Y F Howe, Amie Perry, Kunjie Hua, Michael A Pellizzon, Kasper D Hansen, Brynn H Voy, Brian J Bennett, Daniel Pomp, Andrew P Feinberg, David W Threadgill
The incidence of diet-induced metabolic disease has soared the last half-century despite national efforts to improve health through universal dietary recommendations. Studies comparing dietary patterns of populations with health outcomes have historically provided the basis for healthy diet recommendations. However, evidence that population-level diet responses are reliable indicators of responses across individuals is lacking.  This study investigated how genetic differences influence health responses to several popular diets in mice, which are similar to humans in genetic composition and propensity to develop metabolic disease, but enable precise genetic and environmental control...
November 20, 2017: Genetics
https://www.readbyqxmd.com/read/29158383/optimal-nutrient-exchange-and-immune-responses-operate-in-partner-specificity-in-the-cnidarian-dinoflagellate-symbiosis
#12
Jennifer L Matthews, Camerron M Crowder, Clinton A Oakley, Adrian Lutz, Ute Roessner, Eli Meyer, Arthur R Grossman, Virginia M Weis, Simon K Davy
The relationship between reef-building corals and phototrophic dinoflagellates of the genus Symbiodinium is fundamental to the functioning of coral reef ecosystems. It has been suggested that reef corals may adapt to climate change by changing their dominant symbiont type to a more thermally tolerant one, although the capacity for such a community shift is potentially hindered by the compatibility of different host-symbiont pairings. Here we combined transcriptomic and metabolomic analyses to characterize the molecular, cellular, and physiological processes that underlie this compatibility, with a particular focus on Symbiodinium trenchii, an opportunistic, thermally tolerant symbiont that flourishes in coral tissues after bleaching events...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29158345/stable-oxidative-cytosine-modifications-accumulate-in-cardiac-mesenchymal-cells-from-type2-diabetes-patients-rescue-by-alpha-ketoglutarate-and-tet-tdg-functional-reactivation
#13
Francesco Spallotta, Chiara Cencioni, Sandra Atlante, Davide Garella, Mattia Cocco, Mattia Mori, Raffaella Mastrocola, Carsten Künne, Stefan Günther, Simona Nanni, Valerio Azzimato, Sven Zukunft, Angela Kornberger, Duran Sueruen, Frank Schnutgen, Harald von Melchner, Antonella Di Stilo, Manuela Aragno, Maarten Braspenning, Wim Van Criekinge, Miles J De Blasio, Rebecca H Ritchie, Germana Zaccagnini, Fabio Martelli, Antonella Farsetti, Ingrid Fleming, Thomas Braun, Andres Beiras-Fernandez, Bruno Botta, Massimo Collino, Massimo Bertinaria, Andreas M Zeiher, Carlo Gaetano
Rationale: Human cardiac mesenchymal cells (CMSCs) are a therapeutically-relevant primary cell population. Diabetes compromises CMSC function as consequence of metabolic alterations and incorporation of stable epigenetic changes. Objective: To investigate the role of α-ketoglutarate (αKG) in the epi-metabolic control of DNA demethylation in CMSCs. Methods and Results: Quantitative global analysis, methylated and hydroxymethylated DNA sequencing and gene specific GC methylation detection revealed an accumulation of 5mC, 5hmC and 5fC in the genomic DNA of human CMSCs isolated from diabetic (D) donors (D-CMSCs)...
November 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/29158331/vessel-specific-reintroduction-of-cinnamoyl-coa-reductase-1-ccr1-in-dwarfed-ccr1-mutants-restores-vessel-and-xylary-fiber-integrity-and-increases-biomass
#14
Barbara De Meester, Lisanne de Vries, Merve Özparpucu, Notburga Gierlinger, Sander Corneillie, Andreas Pallidis, Geert Goeminne, Kris Morreel, Michiel De Bruyne, Riet Maria De Rycke, Ruben Vanholme, Wout A Boerjan
Lignocellulosic biomass is recalcitrant towards deconstruction into simple sugars due to the presence of lignin. To render lignocellulosic biomass a suitable feedstock for the bio-based economy, plants can be engineered to have decreased amounts of lignin. However, engineered plants with the lowest amounts of lignin exhibit collapsed vessels and yield penalties. Previous efforts were not able to fully overcome this phenotype, without settling in sugar yield upon saccharification. Here, we reintroduced CINNAMOYL-CoA REDUCTASE 1 (CCR1) expression specifically in the proto- and metaxylem vessel cells of Arabidopsis ccr1 mutants...
November 20, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29158266/stilbenoid-prenyltransferases-define-key-steps-in-the-diversification-of-peanut-phytoalexins
#15
Tianhong Yang, Lingling Fang, Sheri Sanders, Srinivas Jayanthi, Gayathri Rajan, Ram Podicheti, Suresh Kumar Thallapuranam, Keithanne Mockaitis, Fabricio Medina-Bolivar
Defense responses of peanut (Arachis hypogaea) to biotic and abiotic stresses include the synthesis of prenylated stilbenoids. Members of this compound class show several protective activities in human disease studies, and the list of potential therapeutic targets continues to expand. Despite their medical and biological importance, the biosynthetic pathways of prenylated stilbenoids remain to be elucidated, and the genes encoding stilbenoid-specific prenyltransferases have yet to be identified in any plant species...
November 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29157816/effect-of-ipomoea-aquatica-ethanolic-extract-in-streptozotocin-stz-induced-diabetic-rats-via-1-h-nmr-based-metabolomics-approach
#16
Azliana Abu Bakar Sajak, Ahmed Mediani, Maulidiani, Nur Sumirah Mohd Dom, Chandradevan Machap, Muhajir Hamid, Amin Ismail, Alfi Khatib, Faridah Abas
BACKGROUND: Ipomoea aquatica (locally known as "kangkung") has previously been reported to have hypoglycemic activities on glucose level in diabetes patients. However, the effect of I. aquatica ethanolic extract on the metabolites in the body has remained unknown. PURPOSE: This study provides new insights on the changes of endogenous metabolites caused by I. aquatica ethanolic extract and improves the understanding on the therapeutic efficacy and mechanism of I...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29157743/next-generation-microbiological-risk-assessment-meta-omics-the-next-need-for-integration
#17
Luca Cocolin, Marios Mataragas, Francois Bourdichon, Agapi Doulgeraki, Marie-France Pilet, Balamurugan Jagadeesan, Kalliopi Rantsiou, Trevor Phister
The development of a multi-omics approach has provided a new approach to the investigation of microbial communities allowing an integration of data, which can be used to better understand the behaviour of and interactions between community members. Metagenomics, metatranscriptomics, metaproteomics and metabolomics have the potential of producing a large amount of data in a very short time, however an important challenge is how to exploit and interpret these data to assist risk managers in food safety and quality decisions...
November 13, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29157494/plant-metabolism-as-studied-by-nmr-spectroscopy
#18
REVIEW
Catherine Deborde, Annick Moing, Léa Roch, Daniel Jacob, Dominique Rolin, Patrick Giraudeau
The study of plant metabolism impacts a broad range of domains such as plant cultural practices, plant breeding, human or animal nutrition, phytochemistry and green biotechnologies. Plant metabolites are extremely diverse in terms of structure or compound families as well as concentrations. This review attempts to illustrate how NMR spectroscopy, with its broad variety of experimental approaches, has contributed widely to the study of plant primary or specialized metabolism in very diverse ways. The review presents recent developments of one-dimensional and multi-dimensional NMR methods to study various aspects of plant metabolism...
November 2017: Progress in Nuclear Magnetic Resonance Spectroscopy
https://www.readbyqxmd.com/read/29157489/nmr-based-pharmacometabonomics-a-new-paradigm-for-personalised-or-precision-medicine
#19
REVIEW
Jeremy R Everett
Metabolic profiling by NMR spectroscopy or hyphenated mass spectrometry, known as metabonomics or metabolomics, is an important tool for systems-based approaches in biology and medicine. The experiments are typically done in a diagnostic fashion where changes in metabolite profiles are interpreted as a consequence of an intervention or event; be that a change in diet, the administration of a drug, physical exertion or the onset of a disease. By contrast, pharmacometabonomics takes a prognostic approach to metabolic profiling, in order to predict the effects of drug dosing before it occurs...
November 2017: Progress in Nuclear Magnetic Resonance Spectroscopy
https://www.readbyqxmd.com/read/29157273/effect-of-daikenchuto-tj-100-on-gastrointestinal-symptoms-following-laparoscopic-colectomy-in-patients-with-colon-cancer-study-protocol-for-a-randomized-controlled-trial
#20
Nobuaki Hoshino, Kenji Kawada, Koya Hida, Toshiaki Wada, Ryo Takahashi, Mami Yoshitomi, Yoshiharu Sakai
BACKGROUND: Postoperative paralytic ileus can be a difficult complication for both surgeons and patients. Causes and treatments have been discussed for more than two centuries, but have not yet been fully resolved. Daikenchuto (TJ-100, DKT) is a traditional Japanese herbal medicine. Recently, some beneficial mechanisms of DKT to relieve paralytic ileus have been reported. DKT can suppress inflammation, increase intestinal blood flow, and accelerate bowel movements. Therefore, we have designed a randomized controlled trial to investigate the effects of DKT on postoperative gastrointestinal symptoms following laparoscopic colectomy in patients with left-sided colon cancer at a single institution...
November 21, 2017: Trials
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