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https://www.readbyqxmd.com/read/28915534/revealing-anti-inflammation-mechanism-of-water-extract-and-oil-of-forsythiae-fructus-on-carrageenan-induced-edema-rats-by-serum-metabolomics
#1
An Yuan, Lihong Gong, Lin Luo, Jue Dang, Xiaohong Gong, Mengjie Zhao, Yan Li, Yunxia Li, Cheng Peng
Forsythiae Fructus is an important Chinese medicine which shows a significant effect against inflammation. This study aimed to investigate the preventive anti-inflammation mechanism of Forsythiae Fructus by serum metabolomics strategy and compare the difference of the metabolism pathways between Forsythia extract and Forsythia oil in rat. Four groups (control group, model group, Forsythia extract group and Forsythia oil group) were orally administered 10mL/kg 0.5% Tween 80 solution, 10mL/kg 0.5% Tween 80 solution, 5g/kg Forsythia extract and 0...
September 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28906007/intergrated-metabonomic-study-of-the-effects-of-guizhi-fuling-capsule-intervention-on-primary-dysmenorrheal-using-rp-uplc-ms-complementary-with-hilic-uplc-ms-technique
#2
Lang Lang, Zhaorui Meng, Lan Sun, Wei Xiao, Longshan Zhao, Zhili Xiong
Guizhi Fuling capsule (GFC), developed from the traditional Chinese prescription of Guizhi Fuling Wan, has been commonly used for the treatment of primary dysmenorrheal (PD). However, the intervention effective mechanism in vivo has not been well elucidated. In this study, an integrated plasma metabonomic strategy based on RP-UPLC-MS coupled with HILIC-UPLC-MS technique has been developed to investigate the global therapeutic effects and intervention mechanisms of Guizhi Fuling capsule (GFC) on dysmenorrhea rats induced by oxytocin...
September 14, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28905694/sphingomonas-carri-sp-nov-isolated-from-a-car-air-conditioning-system
#3
Hyosun Lee, Dong-Uk Kim, Suyeon Lee, Jungpyo Yun, Sooyeon Park, Jung-Hoon Yoon, So Yoon Park, Jong-Ok Ka
A Gram-stain-negative, yellow-pigmented bacterial strain, designated PR0302T, was isolated from a car evaporator core collected in Korea. The cells were strictly aerobic, non-spore-forming and rod-shaped. The strain grew at 15-37 °C (optimum, 25 °C), at pH 6.0-8.0 (optimum, 7.0) and in the presence of 0-1 % (w/v) NaCl. Phylogenetically, the strain was closely related to members of the genus Sphingomonas(97.04-91.22 % 16S rRNA gene sequence similarities) and showed the highest sequence similarity of 97...
September 14, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28902413/frequent-genes-in-rare-diseases-panel-based-next-generation-sequencing-to-disclose-causal-mutations-in-hereditary-neuropathies
#4
Maike F Dohrn, Nicola Glöckle, Lejla Mulahasanovic, Corina Heller, Julia Mohr, Christine Bauer, Erik Riesch, Andrea Becker, Florian Battke, Konstanze Hörtnagel, Thorsten Hornemann, Saranya Suriyanarayanan, Markus Blankenburg, Jörg B Schulz, Kristl G Claeys, Burkhard Gess, Istvan Katona, Andreas Ferbert, Debora Vittore, Alexander Grimm, Stefan Wolking, Ludger Schöls, Holger Lerche, G Christoph Korenke, Dirk Fischer, Bertold Schrank, Urania Kotzaeridou, Gerhard Kurlemann, Bianca Dräger, Anja Schirmacher, Peter Young, Beate Schlotter-Weigel, Saskia Biskup
Hereditary neuropathies comprise a wide variety of chronic diseases associated to more than 80 genes identified to date. We herein examined 612 index patients with either a Charcot-Marie-Tooth phenotype, hereditary sensory neuropathy, familial amyloid neuropathy, or small fiber neuropathy using a customized multigene panel based on the next generation sequencing (NGS) technique. In 121 cases (19.8%), we identified at least one putative pathogenic mutation. Out of these, 54.4% showed an autosomal dominant, 33...
September 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28900168/identification-of-key-metabolic-changes-during-liver-fibrosis-progression-in-rats-using-a-urine-and-serum-metabolomics-approach
#5
Hong Chang, Hong-Yu Meng, Shu-Min Liu, Yu Wang, Xiao-Xu Yang, Fang Lu, Hong-Yu Wang
Reversibility of hepatic fibrosis is an intrinsic response to chronic injury, and with on-going damage, fibrosis can progress to its end-stage consequence, cirrhosis. Non-invasive and reliable biomarkers for early detection of liver fibrosis are needed. Based on the CCl4-induced liver fibrosis rat model, urinary and serum metabolic profiling performed by LC-QTOF-MS associated with histological progression were utilized to identify liver fibrosis-specific potential biomarkers for early prediction and to reveal significant fibrotic pathways and their dynamic changes in different stages of liver fibrosis...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28895519/parapedobacter-lycopersici-sp-nov-isolated-from-the-rhizosphere-soil-of-tomato-plants-solanum-lycopersicum-l
#6
Jeong Myeong Kim, Shin Ae Lee, Hayoung Cho, Soo-Jin Kim, Jae-Ho Joa, Soon-Wo Kwon, Hang-Yeon Weon
A novel Gram-stain-negative bacterial strain, designated T16R-256T, was isolated from the rhizosphere soil of tomato plants grown in a greenhouse in Yecheon-gun, Gyeongsangbuk-do, Republic of Korea and characterized using polyphasic taxonomy. Cells were aerobic, non-flagellated and rod-shaped. Colonies were light yellow, convex and round. The strain grew in the temperature range of 15-37 °C (optimally at 28-30 °C) and pH range of 7.0-9.0 (optimally at 7.0-8.0) and in 4 % NaCl (w/v). A comparison of 16S rRNA gene sequences showed that strain T16R-256T is a member of the genus Parapedobacter, exhibiting high sequence similarity with Parapedobacter pyrenivorans P-4T (94...
September 12, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28890699/sphingosine-1-phosphate-signaling-as-a-target-in-hepatic-fibrosis-therapy
#7
REVIEW
Bárbara González-Fernández, Diana I Sánchez, Javier González-Gallego, María J Tuñón
Liver fibrosis is an excess production of extracellular matrix proteins as a result of chronic liver disease which leads to cell death and organ dysfunction. The key cells involved in fibrogenesis are resident hepatic stellate cells (HSCs) which are termed myofibroblasts after activation, acquiring contractile, proliferative, migratory and secretory capability. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid with well-established effects on angiogenesis, carcinogenesis and immunity. Accumulating evidence demonstrates that this metabolite is involved in the profibrotic inflammatory process through the regulation of pleiotropic cell responses, such as vascular permeability, leukocyte infiltration, cell survival, migration, proliferation and HSCs differentiation to myofibroblasts...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28890071/serum-lipid-alterations-in-gba-associated-parkinson-s-disease
#8
Leonor Correia Guedes, Robin Barry Chan, Marcos António Gomes, Vasco A Conceição, Raquel Bouça Machado, Tiago Soares, Yimeng Xu, Paulo Gaspar, Joao André Carriço, Roy N Alcalay, Joaquim J Ferreira, Tiago Fleming Outeiro, Gabriel Miltenberger-Miltenyi
INTRODUCTION: Mutations in the GBA gene, encoding for the lysosomal enzyme glucocerebrosidase, are associated with Gaucher disease. Alterations in plasma sphingolipids have been reported in Gaucher, and similarly in brain extracts in Lewy body disease. As GBA mutations are prevalent risk factors for Parkinson's disease and overlap of molecular pathways are presumable, here we assessed the lipid profiles in Parkinson's patients with and without GBA mutations. METHODS: We sequenced all GBA exons in 415 Parkinson's patients, previously genotyped for LRRK2...
September 1, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28889482/tlr-induced-smpd3-defects-enhance-inflammatory-response-of-b-cell-and-macrophage-in-the-pathogenesis-of-sle
#9
Fei Liu, Xiaojing Li, Huimin Yue, Jianjian Ji, Ming You, Liang Ding, Hongye Fan, Yayi Hou
B lymphocyte and macrophages may contribute to SLE pathogenesis through cytokine production after TLR stimulation. Emerging evidences suggested that defects of sphingolipid metabolism was responsible for SLE pathogenesis. However, it is not clear whether these defects exist in B cells and macrophages under SLE condition and whether TLR signaling pathway was related to the dysfunction of sphingolipid metabolism in SLE. Here we demonstrated that the enzymes involved in the sphingolipid metabolism expressed abnormally in B cells from SLE patients and lupus-prone mice...
September 10, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28888701/direct-mass-spectrometry-differentiation-of-ectopic-and-eutopic-endometrium-in-patients-with-endometriosis
#10
Leila Adamyan, Natalia Starodubtseva, Anna Borisova, Assia Stepanian, Vitaliy Chagovets, Dinara Salimova, Zhihao Wang, Alexey Kononikhin, Igor Popov, Anna Bugrova, Konstantin Chingin, Andrey Kozachenko, Huanwen Chen, Vladimir Frankevich
STUDY OBJECTIVE: To introduce a method for rapid assessment of endometriotic tissues using direct mass spectrometry (MS)-based lipidomics. DESIGN: Prospective observational cohort study. DESIGN CLASSIFICATION: II 2. SETTING: Department of Operative Gynecology of the Research Centre for Obstetrics, Gynecology and Perinatology. PATIENTS: Fifty patients with ovarian cysts and peritoneal endometriosis who underwent laparoscopic surgery between 2014 and 2016...
September 6, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28886580/a-plasma-metabonomic-analysis-on-potential-biomarker-in-pyrexia-induced-by-three-methods-using-ultra-high-performance-liquid-chromatography-coupled-with-fourier-transform-ion-cyclotron-resonance-mass-spectrometry
#11
Ting Liu, Songhe Li, Xiumin Tian, Zhaoqin Li, Yue Cui, Fei Han, Yunli Zhao, Zhiguo Yu
Pyrexia usually is a systemic pathological process that can lead to metabolic disorders. Metabonomics as a powerful tool not only can reveal the pathological mechanisms, but also can give insight into the progression of pyrexia from another angle. Thus, an ultra high performance liquid chromatography combined with Fourier transform ion cyclotron resonance mass spectrometry (UHPLC-FT-ICR-MS) metabonomic approach was employed for the first time to investigate the plasma biochemical characteristics of pyrexia induced by three methods and to reveal subtle metabolic changes under the condition of pyrexia so as to explore its mechanism...
August 24, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28883924/metabolic-heterogeneity-of-idiopathic-pulmonary-fibrosis-a-metabolomic-study
#12
Yidan D Zhao, Li Yin, Stephen Archer, Catherine Lu, George Zhao, Yan Yao, Licun Wu, Michael Hsin, Thomas K Waddell, Shaf Keshavjee, John Granton, Marc de Perrot
INTRODUCTION: Idiopathic pulmonary fibrosis (IPF) is a chronic and fatal disease of unknown cause characterised by progressive fibrotic formation in lung tissue. We hypothesise that disrupted metabolic pathways in IPF contribute to disease pathogenesis. METHODS: Metabolomics of human IPF was performed using mass spectroscopy (IPF lung=8; donor lung=8). Gene expression of key metabolic enzymes was measured using microarrays. Of the 108 metabolites whose levels were found altered, 48 were significantly increased, whereas 60 were significantly decreased in IPF samples compared with normal controls...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/28883696/metabolomic-profiling-for-identification-of-metabolites-and-relevant-pathways-for-taurine-in-hepatic-stellate-cells
#13
Xin Deng, Xing-Qiu Liang, Fei-Guo Lu, Xiao-Fang Zhao, Lei Fu, Jian Liang
AIM: To develop a reliable and simple method to identify important biological metabolites and relevant pathways for taurine in hepatic stellate cells (HSCs), in order to provide more data for taurine therapy. METHODS: All the biological samples were analyzed by using high-performance liquid chromatography-time electrospray ionization/quadrupole-time of flight mass spectrometry. Principal component analysis and partial least squares discriminant analysis were used to identify statistically different metabolites for taurine in HSCs, and metabolomic pathway analysis was used to do pathway analysis for taurine in HSCs...
August 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28882559/enhancement-of-s1p-induced-contractile-response-in-detrusor-smooth-muscle-of-rats-having-cystitis
#14
Irfan Anjum, Merve Denizalti, Hilmi Burak Kandilci, Nezahat Tugba Durlu-Kandilci, Inci Sahin-Erdemli
Interstitial cystitis is a chronic disease characterized by lower abdominal pain and some nonspecific symptoms including an increase in urinary frequency and urgency. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid that controls smooth muscle tone via G-protein coupled receptors (S1P1-3 receptors). S1P production is known to take place both in physiological states and some pathological situations, such as in overactive bladder syndrome. The intracellular mechanism of S1P-induced contractile response was investigated in β-escin permeabilized detrusor smooth muscle of rats having cyclophosphamide-induced cystitis...
September 4, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28881832/the-novel-sphingosine-1-phosphate-receptors-antagonist-ad2900-affects-lymphocyte-activation-and-inhibits-t-cell-entry-into-the-lymph-nodes
#15
Jing Song, Arie Dagan, Zhanna Yakhtin, Shimon Gatt, Sean Riley, Hugh Rosen, Reuven Or, Osnat Almogi-Hazan
Sphingolipid derivatives play key roles in immune cell migration and function. Synthetic sphingolipid analogues are used as therapeutics to intervene various inflammatory and malignant conditions. We hypothesize that different analogs have different effects on immune cells and therefore can be used as treatment for specific diseases. This study examines the properties of the novel synthetic sphingolipid analog, AD2900, and its effects on immune cell activation and lymphocyte localization in homeostasis. AD2900 is an antagonist for all sphingosine-1-phosphate (S1P) receptors...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28878811/serum-metabolites-in-non-alcoholic-fatty-liver-disease-development-or-reversion-a-targeted-metabolomic-approach-within-the-predimed-trial
#16
Christopher Papandreou, Mònica Bullò, Francisco José Tinahones, Miguel Ángel Martínez-González, Dolores Corella, Georgios A Fragkiadakis, José López-Miranda, Ramon Estruch, Montserrat Fitó, Jordi Salas-Salvadó
BACKGROUND: Limited prospective studies have examined changes in non-alcoholic fatty-liver disease (NAFLD) related serum-metabolites and none the effects of NAFLD-reversion. We aimed to evaluate whether perturbations in metabolites indicate predisposition to NAFLD development and to assess the effects of NAFLD reversion on metabolite profiles. METHODS: A targeted liquid-chromatography tandem mass-spectrometry metabolic profiling (n = 453 metabolites) approach was applied, using serum from 45 subjects of the PREDIMED study, at baseline and after a median 3...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28878741/heat-stress-dictates-microbial-lipid-composition-along-a-thermal-gradient-in-marine-sediments
#17
Miriam Sollich, Marcos Y Yoshinaga, Stefan Häusler, Roy E Price, Kai-Uwe Hinrichs, Solveig I Bühring
Temperature exerts a first-order control on microbial populations, which constantly adjust the fluidity and permeability of their cell membrane lipids to minimize loss of energy by ion diffusion across the membrane. Analytical advances in liquid chromatography coupled to mass spectrometry have allowed the detection of a stunning diversity of bacterial and archaeal lipids in extreme environments such as hot springs, hydrothermal vents and deep subsurface marine sediments. Here, we investigated a thermal gradient from 18 to 101°C across a marine sediment field and tested the hypothesis that cell membrane lipids provide a major biochemical basis for the bioenergetics of archaea and bacteria under heat stress...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28872598/the-torc2-dependent-signaling-network-in-the-yeast-saccharomyces-cerevisiae
#18
REVIEW
Françoise M Roelants, Kristin L Leskoske, Maria Nieves Martinez Marshall, Melissa N Locke, Jeremy Thorner
To grow, eukaryotic cells must expand by inserting glycerolipids, sphingolipids, sterols, and proteins into their plasma membrane, and maintain the proper levels and bilayer distribution. A fungal cell must coordinate growth with enlargement of its cell wall. In Saccharomyces cerevisiae, a plasma membrane-localized protein kinase complex, Target of Rapamicin (TOR) complex-2 (TORC2) (mammalian ortholog is mTORC2), serves as a sensor and masterregulator of these plasma membrane- and cell wall-associated events by directly phosphorylating and thereby stimulating the activity of two types of effector protein kinases: Ypk1 (mammalian ortholog is SGK1), along with a paralog (Ypk2); and, Pkc1 (mammalian ortholog is PKN2/PRK2)...
September 5, 2017: Biomolecules
https://www.readbyqxmd.com/read/28870328/sphingolipids-in-marine-microalgae-development-and-application-of-a-mass-spectrometric-method-for-global-structural-characterization-of-ceramides-and-glycosphingolipids-in-three-major-phyla
#19
Yanrong Li, Yamin Lou, Tong Mu, Aiying Ke, Zhaoshou Ran, Jilin Xu, Juanjuan Chen, Chengxu Zhou, Xiaojun Yan, Qingshan Xu, Yinghong Tan
Sphingolipid compositions are crucial for the structural and physiological properties of microalgae membranes. In the present study, we developed a quadrupole time-of-flight (Q-TOF) mass spectrometric method based on MS(E) data collection for the identification of sphingolipids with high efficiency, selectivity, sensitivity and mass accuracy and applied this method for precise structural identification and quantitative profiling of ceramides and glycosphingolipids in total lipid extracts from 17 strains of microalgae, including 11 strains of diatom, 3 strains of dinoflagellate and 3 strains of haptophyta...
September 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28865794/changes-in-glucosylceramide-structure-affect-virulence-and-membrane-biophysical-properties-of-cryptococcus-neoformans
#20
Shriya Raj, Saeed Nazemidashtarjandi, Jihyun Kim, Luna Joffe, Xiaoxue Zhang, Ashutosh Singh, Visesato Mor, Desmarini Desmarini, Julianne Djordjevic, Daniel P Raleigh, Marcio L Rodrigues, Erwin London, Maurizio Del Poeta, Amir M Farnoud
Fungal glucosylceramide (GlcCer) is a plasma membrane sphingolipid in which the sphingosine backbone is unsaturated in carbon position 8 (C8) and methylated in carbon position 9 (C9). Studies in the fungal pathogen, Cryptococcus neoformans, have shown that loss of GlcCer synthase activity results in complete loss of virulence in the mouse model. However, whether the loss of virulence is due to the lack of the enzyme or to the loss of the sphingolipid is not known. In this study, we used genetic engineering to alter the chemical structure of fungal GlcCer and studied its effect on fungal growth and pathogenicity...
September 1, 2017: Biochimica et Biophysica Acta
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