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https://www.readbyqxmd.com/read/29775942/toxicological-effects-on-earthworms-eisenia-fetida-exposed-to-sub-lethal-concentrations-of-bde-47-and-bde-209-from-a-metabolic-point
#1
Ruoyu Liang, Juan Chen, Yajuan Shi, Yonglong Lu, Suriyanarayanan Sarvajayakesavalu, Xiangbo Xu, Xiaoqi Zheng, Kifayatullah Khan, Chao Su
Earthworms improve the soil fertility and they are also sensitive to soil contaminants. Earthworms (Eisenia fetida), standard reference species, were usually chosen to culture and handle for toxicity tests. Metabolic responses in earthworms exposed to 2, 2', 4, 4'-tetrabromodiphenyl ether (BDE-47) and decabromodiphenyl ether (BDE-209) were inhibitory and interfered with basal metabolism. In this study, 1 H-NMR based metabolomics was used to identify sensitive biomarkers and explore metabolic responses of earthworms under sub-lethal BDE-47 and BDE-209 concentrations for 14 days...
May 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29775779/metabolomics-in-breast-cancer-a-decade-in-review
#2
REVIEW
Amelia McCartney, Alessia Vignoli, Laura Biganzoli, Richard Love, Leonardo Tenori, Claudio Luchinat, Angelo Di Leo
Breast cancer (BC) is a heterogeneous disease which has been characterised and stratified by many platforms such as clinicopathological risk factors, genomic assays, computer generated models, and various "-omic" technologies. Genomic, proteomic and transcriptomic analysis in breast cancer research is well established, and metabolomics, which can be considered a downstream manifestation of the former disciplines, is of growing interest. The past decade has seen significant progress made within the field of clinical metabolomic BC research, with several groups demonstrating results with significant promise in the setting of BC screening and biological characterisation, as well as future potential for prognostic metabolomic biomarkers...
May 3, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29775734/defining-the-osteoarthritis-patient-back-to-the-future
#3
REVIEW
Geoffrey P Dobson, Hayley L Letson, Andrea Grant, Peter McEwen, Kaushik Hazratwala, Matthew Wilkinson, Jodie L Morris
The history of osteoarthritis (OA) is important because it can help broaden our perspective on past and present controversies. The naming of OA, beginning with Heberden's nodes, is itself a fascinating story. According to Albert Hoffa, R. Llewellyn Jones and Archibald Edward Garrod, the name OA was introduced in the mid-19th century by surgeon Richard von Volkmann who distinguished it from rheumatoid arthritis and gout. Others preferred the terms 'chronical rheumatism', 'senile arthritis', 'hypertrophic arthritis' or 'arthritis deformans'...
May 15, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29775057/analysis-of-improved-nutritional-composition-of-potential-functional-food-okara-after-probiotic-solid-state-fermentation
#4
Sulagna Gupta, Jaslyn J L Lee, Wei Ning Chen
Okara is a major agro-waste, generated as a byproduct from the soymilk and tofu industry. Since okara has a high nutritive value, reusing it as a substrate for solid state biofermentation is an economical and environmental friendly option. Rhizopus oligosporus and Lactobacillus plantarum were the probiotic FDA-approved food-grade cultures used in this study. The study revealed that biofermenting okara improves its nutritional composition. It was found that the metabolomic composition (by GC-MS analysis) and antioxidant activity (by DPPH test) improved after the microbial fermentations...
May 18, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29774984/comments-on-recent-reports-on-infrared-spectral-detection-of-disease-markers-in-blood-components
#5
Max Diem
The search for disease markers in whole blood, or easily accessible blood components by spectral methods is a highly important aspect in the field of biophotonic research for disease diagnostics and screening, since it promises a minimally invasive approach to assess an individual's state of health. Fourier transform infrared spectroscopy, in particular, promises to be a fast, inexpensive method to search for markers of disease, since it detects variation in the proteome, lipidome and metabolome of biofluids, or activation of immune cells...
May 18, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29774011/metabolomics-analysis-of-the-toxic-effects-of-the-production-of-lycopene-and-its-precursors
#6
April M Miguez, Monica P McNerney, Mark P Styczynski
Using cells as microbial factories enables highly specific production of chemicals with many advantages over chemical syntheses. A number of exciting new applications of this approach are in the area of precision metabolic engineering, which focuses on improving the specificity of target production. In recent work, we have used precision metabolic engineering to design lycopene-producing Escherichia coli for use as a low-cost diagnostic biosensor. To increase precursor availability and thus the rate of lycopene production, we heterologously expressed the mevalonate pathway...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29773876/early-salmonella-typhimurium-infection-in-pigs-disrupts-microbiome-composition-and-functionality-principally-at-the-ileum-mucosa
#7
Héctor Argüello, Jordi Estellé, Sara Zaldívar-López, Ángeles Jiménez-Marín, Ana Carvajal, Mª Asunción López-Bascón, Fiona Crispie, Orla O'Sullivan, Paul D Cotter, Feliciano Priego-Capote, Luis Morera, Juan J Garrido
Salmonella is a major foodborne pathogen which successfully infects animal species for human consumption such as swine. The pathogen has a battery of virulence factors which it uses to colonise and persist within the host. The host microbiota may play a role in resistance to, and may also be indirectly responsible from some of the consequences of, Salmonella infection. To investigate this, we used 16S rRNA metagenomic sequencing to determine the changes in the gut microbiota of pigs in response to infection by Salmonella Typhimurium at three locations: ileum mucosa, ileum content and faeces...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773684/when-fed-foods-with-similar-palatability-healthy-adult-dogs-and-cats-choose-different-macronutrient-compositions
#8
Jean A Hall, Jodi C Vondran, Melissa A Vanchina, Dennis E Jewell
Dogs and cats make short-term food choices based on palatability. We hypothesized that if palatability were masked, long-term food choices would be based on physiologic requirements, and circulating metabolite concentrations would reflect those choices. Four experimental foods with similar palatability, but varying in macronutrient composition, were prepared for healthy adult dogs (n=17) and cats (n=27). Food 1 was high protein; Food 2 was high fat; Food 3 was high carbohydrates; and Food 4 was balanced for macronutrients...
May 17, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29773073/metabolome-analysis-based-design-and-engineering-of-a-metabolic-pathway-in-corynebacterium-glutamicum-to-match-rates-of-simultaneous-utilization-of-d-glucose-and-l-arabinose
#9
Hideo Kawaguchi, Kumiko Yoshihara, Kiyotaka Y Hara, Tomohisa Hasunuma, Chiaki Ogino, Akihiko Kondo
BACKGROUND: L-Arabinose is the second most abundant component of hemicellulose in lignocellulosic biomass, next to D-xylose. However, few microorganisms are capable of utilizing pentoses, and catabolic genes and operons enabling bacterial utilization of pentoses are typically subject to carbon catabolite repression by more-preferred carbon sources, such as D-glucose, leading to a preferential utilization of D-glucose over pentoses. In order to simultaneously utilize both D-glucose and L-arabinose at the same rate, a modified metabolic pathway was rationally designed based on metabolome analysis...
May 17, 2018: Microbial Cell Factories
https://www.readbyqxmd.com/read/29771375/detection-of-novel-metabolite-for-roxadustat-doping-by-global-metabolomics
#10
Daisuke Saigusa, Norio Suzuki, Yotaro Matsumoto, Keiko Umeda, Yoshihisa Tomioka, Seizo Koshiba, Masayuki Yamamoto
No abstract text is available yet for this article.
June 1, 2018: Journal of Biochemistry
https://www.readbyqxmd.com/read/29771345/sucrose-metabolism-alters-lactobacillus-plantarum-survival-and-interactions-with-the-microbiota-in-the-digestive-tract
#11
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/29771240/power-efficient-self-cleaning-hydrophilic-condenser-surface-for-portable-exhaled-breath-condensate-ebc-metabolomic-sampling
#12
Konstantin O Zamuruyev, Alexander James Schmidt, Eva Borras, Mitchell M McCartney, Michael Schivo, Nicholas J Kenyon, Jean-Pierre Delplanque, Cristina E Davis
In this work, we present a hydrophilic self-cleaning condenser surface for collection of biological and environmental aerosol samples. The condenser is installed in a battery-operated, hand-held breath sampling device. The device performance is characterized with collection and analysis of exhaled breath samples from a group of volunteers. The exhaled breath condensate is collected on a sub-cooled condenser surface, transferred into a storage vial, and its chemical content is analyzed with mass spectrometric methods...
May 17, 2018: Journal of Breath Research
https://www.readbyqxmd.com/read/29770756/the-influence-of-juicing-on-the-appearance-of-blueberry-metabolites-2-h-after-consumption-a-metabolite-profiling-approach
#13
Swen Langer, Aileen Kennel, John K Lodge
The consumption of berries has been linked to decreased risk of degenerative disease. Berries are regularly processed into juices. It is largely unknown how the juicing process affects the bioavailability of metabolites. As metabolomics has shown to be a valuable nutritional tool to study global metabolite differences, the aim of this study was to investigate the effect of juicing on the relative appearance of blueberry metabolites in humans using metabolomics. Nine healthy subjects consumed 250 g of fresh blueberries either as the whole fruit or after juicing, and provided blood and urine samples before and 2 h after intake in a cross-over design...
June 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29770108/gc-ms-analysis-of-the-ruminal-metabolome-response-to-thiamine-supplementation-during-high-grain-feeding-in-dairy-cows
#14
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
#15
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/29769268/pbdes-altered-gut-microbiome-and-bile-acid-homeostasis-in-male-c57bl-6-mice
#16
Cindy Yanfei Li, Joseph L Dempsey, Dongfang Wang, SooWan Lee, Kris M Weigel, Qiang Fei, Deepak Kumar Bhatt, Bhagwat Prasad, Daniel Raftery, Haiwei Gu, Julia Yue Cui
Polybrominated diphenyl ethers (PBDEs) are persistent environmental contaminants with well-characterized toxicities in host organs. Gut microbiome is increasingly recognized as an important regulator of xenobiotic biotransformation; however, little is known about its interactions with PBDEs. Primary bile acids (BAs) are metabolized by the gut microbiome into more lipophilic secondary BAs that may be absorbed and interact with certain host receptors. The goal of this study was to test our hypothesis that PBDEs cause dysbiosis and aberrant regulation of BA homeostasis...
May 16, 2018: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29768470/integrative-omics-to-detect-bacteremia-in-patients-with-febrile-neutropenia
#17
Rachel S Kelly, Jessica Lasky-Su, Sai-Ching J Yeung, Richard M Stone, Jeffrey M Caterino, Sean C Hagan, Gary H Lyman, Lindsey R Baden, Brett E Glotzbecker, Christopher J Coyne, Christopher W Baugh, Daniel J Pallin
BACKGROUND: Cancer chemotherapy-associated febrile neutropenia (FN) is a common condition that is deadly when bacteremia is present. Detection of bacteremia depends on culture, which takes days, and no accurate predictive tools applicable to the initial evaluation are available. We utilized metabolomics and transcriptomics to develop multivariable predictors of bacteremia among FN patients. METHODS: We classified emergency department patients with FN and no apparent infection at presentation as bacteremic (cases) or not (controls), according to blood culture results...
2018: PloS One
https://www.readbyqxmd.com/read/29767735/untargeted-metabolomics-identifies-novel-potential-biomarkers-of-habitual-food-intake-in-a-cross-sectional-study-of-postmenopausal-women
#18
Ying Wang, Susan M Gapstur, Brian D Carter, Terryl J Hartman, Victoria L Stevens, Mia M Gaudet, Marjorie L McCullough
Background: Recent studies suggest that untargeted metabolomics is a promising tool to identify novel biomarkers of individual foods. However, few large cross-sectional studies with comprehensive data on habitual diet and circulating metabolites have been conducted. Objective: We aimed to identify potential food biomarkers and evaluate their predictive accuracy. Methods: We conducted a cross-sectional analysis of consumption of 91 food groups or items, assessed by a 152-item food-frequency questionnaire, in relation to 1186 serum metabolites measured by mass spectrometry-based platforms from 1369 nonsmoking postmenopausal women (mean age = 68...
May 15, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29767564/interorgan-metabolic-crosstalk-in-human-insulin-resistance
#19
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/29766789/metabolomics-a-high-throughput-screen-for-biochemical-and-bioactivity-diversity-in-plants-and-crops
#20
Alexandre Foito, Derek Stewart
Plants and crops contain a staggering diversity of compounds, many of which have pharmacological activity towards a variety of diseases. These properties have been exploited by traditional and modern medicine providing important sources of healthcare to this day. The contribution of natural products (such as plant-derived) to the modern pharmacopeia is indeed significant; however, the process of identifying novel bioactive compounds from biological sources has been a central challenge in the discovery of natural products...
May 15, 2018: Current Pharmaceutical Design
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