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https://www.readbyqxmd.com/read/29914982/systems-analysis-of-metabolism-in-platelet-concentrates-during-storage-in-platelet-additive-solution
#1
Freyr Jóhannsson, Steinn Guðmundsson, Giuseppe Paglia, Sveinn Guðmundsson, Bernhard Palsson, Ólafur E Sigurjónsson, Óttar Rolfsson
Platelets deteriorate over time when stored within blood banks through a biological process known as platelet storage lesion (PSL). Here we describe the refinement of biochemical network of platelet metabolism iAT-PLT-636 and its application to describe and investigate changes in metabolism during platelet storage. Changes to extracellular acetate and citrate were measured in buffy coat and apheresis platelet units over 10 days of storage in the platelet additive solution T-Sol. Metabolic network analysis of these data was performed alongside our prior metabolomics data to describe the metabolism of fresh (days 1-3), intermediate (days 4-6), and expired (days 7-10) platelets...
June 18, 2018: Biochemical Journal
https://www.readbyqxmd.com/read/29894946/-1-h-nmr-metabolomics-of-microbial-metabolites-in-the-four-mw-agricultural-biogas-plant-reactors-a-case-study-of-inhibition-mirroring-the-acute-rumen-acidosis-symptoms
#2
Boštjan Murovec, Damjan Makuc, Sabina Kolbl Repinc, Zala Prevoršek, Domen Zavec, Robert Šket, Klemen Pečnik, Janez Plavec, Blaž Stres
In this study, nuclear magnetic resonance (1 H NMR) spectroscopic profiling was used to provide a more comprehensive view of microbial metabolites associated with poor reactor performance in a full-scale 4 MW mesophilic agricultural biogas plant under fully operational and also under inhibited conditions. Multivariate analyses were used to assess the significance of differences between reactors whereas artificial neural networks (ANN) were used to identify the key metabolites responsible for inhibition and their network of interaction...
June 9, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29892309/metabolic-responses-to-low-temperature-of-three-peach-fruit-cultivars-differently-sensitive-to-cold-storage
#3
Stefano Brizzolara, Maarten Hertog, Roberta Tosetti, Bart Nicolai, Pietro Tonutti
Refrigerated storage is widely applied in order to maintain peach quality but it can also induce chilling injuries (CIs) such as flesh browning and bleeding, and mealiness. Peach fruit from three cultivars ('Red Haven', RH, 'Regina di Londa', RL, and 'Flaminia', FL) were stored for 4 weeks under low temperatures (0.5 and 5.5°C). GC-MS was employed to study changes in both metabolome and volatilome induced by cold storage in the mesocarp. CIs were assessed both at the end of each week of storage and after subsequent shelf-life (SL) at 20°C...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29883801/glucose-derived-acetate-and-acss2-as-key-players-in-cisplatin-resistance-in-bladder-cancer
#4
He Wen, Sujin Lee, Wei-Guo Zhu, Ok-Jun Lee, Seok Joong Yun, Jayoung Kim, Sunghyouk Park
Cisplatin is an important chemotherapeutic agent against metastatic bladder cancer, but resistance often limits its usage. With the recent recognition of lipid metabolic alterations in bladder cancers, we studied the metabolic implications of cisplatin resistance using cisplatin-sensitive (T24S) and resistant (T24R) bladder cancer cells. Real-time live metabolomics revealed that T24R cells consume more glucose, leading to higher production of glucose-derived acetate and fatty acids. Along with the activation of general metabolic regulators, enzymes involved in acetate usage (ACSS2) and fatty acid synthesis (ACC) and a precursor for fatty acid synthesis (acetyl-CoA) were elevated in T24R cells...
June 5, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29877087/nmr-based-serum-metabolomics-reveals-reprogramming-of-lipid-dysregulation-following-cyclophosphamide-based-induction-therapy-in-lupus-nephritis
#5
Anupam Guleria, Sanat Phatak, Durgesh Dubey, Sandeep Kumar, Abhishek Zanwar, Smriti Chaurasia, Umesh Kumar, Ranjan Gupta, Amita Aggarwal, Dinesh Kumar, Ramnath Misra
Lupus nephritis (LN) is a major cause of morbidity and mortality in lupus. Renal biopsy is the gold standard for classification of nephritis but due to its impracticality, new approaches for improving patient prognostication and monitoring treatment efficacy are needed. In the present study, we aimed to evaluate the potential of metabolic profiling in identifying biomarkers to distinguish disease and monitor treatment efficacy in patients with LN. Serum samples from patients with LN (n=18) were profiled on NMR based metabolomics platforms at diagnosis and after six months of treatment...
June 7, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29875741/genomic-and-in-situ-analyses-reveal-the-micropruina-spp-as-abundant-fermentative-glycogen-accumulating-organisms-in-enhanced-biological-phosphorus-removal-systems
#6
Simon J McIlroy, Cristobal A Onetto, Bianca McIlroy, Florian-Alexander Herbst, Morten S Dueholm, Rasmus H Kirkegaard, Eustace Fernando, Søren M Karst, Marta Nierychlo, Jannie M Kristensen, Kathryn L Eales, Paul R Grbin, Reinhard Wimmer, Per Halkjær Nielsen
Enhanced biological phosphorus removal (EBPR) involves the cycling of biomass through carbon-rich (feast) and carbon-deficient (famine) conditions, promoting the activity of polyphosphate accumulating organisms (PAOs). However, several alternate metabolic strategies, without polyphosphate storage, are possessed by other organisms, which can compete with the PAO for carbon at the potential expense of EBPR efficiency. The most studied are the glycogen accumulating organisms (GAOs), which utilize aerobically stored glycogen to energize anaerobic substrate uptake and storage...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29872163/dynamic-microbial-succession-of-shanxi-aged-vinegar-and-its-correlation-with-flavor-metabolites-during-different-stages-of-acetic-acid-fermentation
#7
Yunping Zhu, Feifei Zhang, Chengnan Zhang, Li Yang, Guangsen Fan, Youqiang Xu, Baoguo Sun, Xiuting Li
Shanxi aged vinegar (SAV), one of the famous Chinese vinegars, is produced by multispecies solid-state fermentation in which the acetic acid fermentation stage (AAF) is especially important. However, how bacterial succession and their metabolites change along with the different stages of AAF is still poorly understood. In this study, we investigated the dynamic bacterial succession and flavor formation in three batches of SAV using high-throughput sequencing and metabolomics approaches. It is interesting to find that AAF can be divided into three stages based on its bacterial community succession (early stage, days 0-4; medium stage, days 5-21; and later stage, days 22-26)...
June 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29849010/uplc-hrms-based-plasma-metabolomic-profiling-of-novel-biomarkers-by-treatment-with-kdzi-in-cerebral-ischemia-reperfusion-rats
#8
Chunguo Wang, Chenyue Liu, Min Wang, Quantao Ma, Yaqi Li, Ting Wang, Baosheng Zhao
Kudiezi injection (KDZI), also known as Diemailing injection, is a traditional Chinese medicine injection of the composite plant Ixeris sonchifolia Hance (also known as Kudiezi), and has been widely used to treat coronary heart disease, angina pectoris, and cerebral infarction, but its pharmacological mechanisms remain unclear. This study is designed to explore the effects of KDZI on middle cerebral artery occlusion and reperfusion (MCAO/R) rats, and to identify metabolic features of cerebral ischemia reperfusion by using a nontargeted metabolic profiling method based on ultra-performance liquid chromatography-high resolution mass spectrometry (UPLC-HRMS)...
May 30, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29785738/mass-spectrometry-for-characterization-of-homologous-piperidine-alkaloids-and-their-activity-as-acetylcholinesterase-inhibitors
#9
Thamires R Freitas, Amanda Danuello, Claudio Viegas Júnior, Vanderlan S Bolzani, Marcos Pivatto
RATIONALE: Piperidine alkaloids from Senna spectabilis constitute a rare class of natural products with several biological activities. However, the absence of chromophores makes their structural elucidation by conventional methods a great challenge. In this context, mass spectrometry emerges as a powerful tool for metabolomics studies. METHODS: The piperidine alkaloids (-)-cassine and (-)-spectaline and the semisynthetic derivatives (-)-3-O-acetylcassine and (-)-3-O-acetylspectaline were investigated by electrospray ionization tandem mass spectrometry (ESI-MS/MS) in the positive mode and electron ionization mass spectrometry (EI-MS)...
May 22, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29771345/sucrose-metabolism-alters-lactobacillus-plantarum-survival-and-interactions-with-the-microbiota-in-the-digestive-tract
#10
Xiaochen Yin, Dustin D Heeney, Yanin Tab Srisengfa, Shin-Yu Chen, Carolyn M Slupsky, Maria L Marco
We investigated whether sucrose metabolism by probiotic Lactobacillus plantarum influences the intestinal survival and microbial responses to this organism when administered to mice fed a sucrose-rich, Western diet. A L. plantarum mutant unable to metabolize sucrose was constructed by deleting scrB, coding for beta-fructofuranosidase, in a rifampicin-resistant strain of L. plantarum NCIMB8826. The ScrB deficient mutant survived in 8-fold higher numbers compared to the wild-type strain when measured 24 h after administration on two consecutive days...
May 16, 2018: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29770108/gc-ms-analysis-of-the-ruminal-metabolome-response-to-thiamine-supplementation-during-high-grain-feeding-in-dairy-cows
#11
Fuguang Xue, Xiaohua Pan, Linshu Jiang, Yuming Guo, Benhai Xiong
Introduction: Thiamine is known to attenuate high-concentrate diet induced subacute ruminal acidosis (SARA) in dairy cows, however, the underlying mechanisms remain unclear. Objectives: The major objective of this study was to investigate the metabolic mechanisms of thiamine supplementation on high-concentrate diet induced SARA. Methods: Six multiparous, rumen-fistulated Holstein cows were used in a replicated 3 × 3 Latin square design...
2018: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/29769578/metabolomic-profile-of-systemic-sclerosis-patients
#12
Federica Murgia, Silvia Svegliati, Simone Poddighe, Milena Lussu, Aldo Manzin, Tatiana Spadoni, Colomba Fischetti, Armando Gabrielli, Luigi Atzori
Systemic sclerosis (SSc) is an autoimmune disease of unknown aetiology characterized by vascular lesions, immunological alterations and diffuse fibrosis of the skin and internal organs. Since recent evidence suggests that there is a link between metabolomics and immune mediated disease, serum metabolic profile of SSc patients and healthy controls was investigated by 1 H-NMR and GC-MS techniques. The results indicated a lower level of aspartate, alanine, choline, glutamate, and glutarate in SSc patients compared with healthy controls...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29767564/interorgan-metabolic-crosstalk-in-human-insulin-resistance
#13
Sofiya Gancheva, Tomas Jelenik, Elisa Álvarez-Hernández, Michael Roden
Excessive energy intake and reduced energy expenditure drive the development of insulin resistance and metabolic diseases such as obesity and type 2 diabetes mellitus. Metabolic signals derived from dietary intake or secreted from adipose tissue, gut, and liver contribute to energy homeostasis. Recent metabolomic studies identified novel metabolites and enlarged our knowledge on classic metabolites. This review summarizes the evidence of their roles as mediators of interorgan crosstalk and regulators of insulin sensitivity and energy metabolism...
July 1, 2018: Physiological Reviews
https://www.readbyqxmd.com/read/29752707/nmr-metabolomic-study-of-blood-plasma-in-ischemic-and-ischemically-preconditioned-rats-an-increased-level-of-ketone-bodies-and-decreased-content-of-glycolytic-products-24-h-after-global-cerebral-ischemia
#14
Eva Baranovicova, Marian Grendar, Dagmar Kalenska, Anna Tomascova, Daniel Cierny, Jan Lehotsky
Cardiac arrest is one of the leading causes of death among adults in older age. Understanding mechanisms how organism responds to ischemia at global level is essential for the prevention and ischemic patient's treatment. In this study, we used a global cerebral ischemia induced by four-vessel occlusion as an established animal model for ischemic stroke to investigate metabolic changes after 24 h reperfusion, when transitions occur due to the onset of delayed neuronal death. We also focused on the endogenous phenomenon known as ischemic tolerance by the pre-ischemic treatment...
May 11, 2018: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29743863/metabolic-fingerprinting-of-joint-tissue-of-collagen-induced-arthritis-cia-rat-in-vitro-high-resolution-nmr-nuclear-magnetic-resonance-spectroscopy-based-analysis
#15
Niraj Kumar Srivastava, Shikha Sharma, Rajkumar Sharma, Neeraj Sinha, Sudhir Kumar Mandal, Deepak Sharma
Rheumatoid arthritis (RA) is a systemic autoimmune disease whose major characteristics persistent joint inflammation that results in joint destruction and failure of the function. Collagen-induced arthritis (CIA) rat is an autoimmune disease model and in many ways shares features with RA. The CIA is associated with systemic manifestations, including alterations in the metabolism. Nuclear magnetic resonance (NMR) spectroscopy-based metabolomics has been successfully applied to the perchloric acid extract of the joint tissue of CIA rat and control rat for the analysis of aqueous metabolites...
2018: EXCLI Journal
https://www.readbyqxmd.com/read/29719507/breathomics-for-assessing-the-effects-of-treatment-and-withdrawal-with-inhaled-beclomethasone-formoterol-in-patients-with-copd
#16
Paolo Montuschi, Giuseppe Santini, Nadia Mores, Alessia Vignoli, Francesco Macagno, Rugia Shoreh, Leonardo Tenori, Gina Zini, Leonello Fuso, Chiara Mondino, Corrado Di Natale, Arnaldo D'Amico, Claudio Luchinat, Peter J Barnes, Tim Higenbottam
Background: Prospective pharmacological studies on breathomics profiles in COPD patients have not been previously reported. We assessed the effects of treatment and withdrawal of an extrafine inhaled corticosteroid (ICS)-long-acting β2 -agonist (LABA) fixed dose combination (FDC) using a multidimensional classification model including breathomics. Methods: A pilot, proof-of-concept, pharmacological study was undertaken in 14 COPD patients on maintenance treatment with inhaled fluticasone propionate/salmeterol (500/50 μg b...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29712497/first-trimester-metabolomic-prediction-of-stillbirth
#17
Ray O Bahado-Singh, Argyro Syngelaki, Rupsari Mandal, BeomSoo Han, Liang Li, Trent C Bjorndahl, Nan Wang, Dev Maulik, Edison Dong, Onur Turkoglu, Chiao-Li Tseng, Amna Zeb, Mark Redman, David S Wishart, Kypros H Nicolaides
BACKGROUND: Stillbirth remains a major problem in both developing and developed countries. Omics evaluation of stillbirth has been highlighted as a top research priority. OBJECTIVE: To identify new putative first-trimester biomarkers in maternal serum for stillbirth prediction using metabolomics-based approach. METHODS: Targeted, nuclear magnetic resonance (NMR) and mass spectrometry (MS), and untargeted liquid chromatography-MS (LC-MS) metabolomic analyses were performed on first-trimester maternal serum obtained from 60 cases that subsequently had a stillbirth and 120 matched controls...
April 30, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29695623/tracking-polymicrobial-metabolism-in-cystic-fibrosis-airways-pseudomonas-aeruginosa-metabolism-and-physiology-are-influenced-by-rothia-mucilaginosa-derived-metabolites
#18
Bei Gao, Tara Gallagher, Ying Zhang, Mona Elbadawi-Sidhu, Zijuan Lai, Oliver Fiehn, Katrine L Whiteson
Due to a lack of effective immune clearance, the airways of cystic fibrosis patients are colonized by polymicrobial communities. One of the most widespread and destructive opportunistic pathogens is Pseudomonas aeruginosa ; however, P. aeruginosa does not colonize the airways alone. Microbes that are common in the oral cavity, such as Rothia mucilaginosa , are also present in cystic fibrosis patient sputum and have metabolic capacities different from those of P. aeruginosa Here we examine the metabolic interactions of P...
April 25, 2018: MSphere
https://www.readbyqxmd.com/read/29672972/metabolomic-profiling-and-biological-investigation-of-the-marine-sponge-derived-bacterium-rhodococcus-sp-ua13
#19
Yasmin Elsayed, John Refaat, Usama Ramadan Abdelmohsen, Eman Maher Othman, Helga Stopper, Mostafa Ahmed Fouad
INTRODUCTION: Marine sponge-associated actinomycetes are potent sources of bioactive natural products of pharmaceutical significance. They also contributed to the discovery of several clinically relevant antimicrobials. OBJECTIVE: To apply the non-targeted metabolomics approach in chemical profiling of the sponge-derived bacterium Rhodococcus sp. UA13, formerly recovered from the Red Sea sponge Callyspongia aff. Implexa, along with testing for the anti-infective potential of its different fractions...
April 19, 2018: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/29662480/comparative-analysis-of-the-microbiota-between-sheep-rumen-and-rabbit-cecum-provides-new-insight-into-their-differential-methane-production
#20
Lan Mi, Bin Yang, Xialu Hu, Yang Luo, Jianxin Liu, Zhongtang Yu, Jiakun Wang
The rumen and the hindgut represent two different fermentation organs in herbivorous mammals, with the former producing much more methane than the latter. The objective of this study was to elucidate the microbial underpinning of such differential methane outputs between these two digestive organs. Methane production was measured from 5 adult sheep and 15 adult rabbits, both of which were placed in open-circuit respiratory chambers and fed the same diet (alfalfa hay). The sheep produced more methane than the rabbits per unit of metabolic body weight, digestible neutral detergent fiber, and acid detergent fiber...
2018: Frontiers in Microbiology
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