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https://www.readbyqxmd.com/read/28812137/myoglobinemia-markers-with-potential-applications-in-forensic-sample-analysis-lipid-markers-in-myoglobinemia-for-postmortem-blood
#1
Hiroko Abe, Daisuke Yajima, Yumi Hoshioka, Akina Nara, Sayaka Nagasawa, Hirotaro Iwase
The crush syndrome, in which rhabdomyolysis and trauma occur as a result of heat stroke and drug intoxication, can lead to myoglobinemia. This condition can be diagnosed by measuring myoglobin (Mb) levels in blood and urine. However, postmortem Mb levels are unreliable indicators, since blood Mb concentration drastically increases within a very short time after death and urine cannot always be obtained at dissection; this makes it difficult to diagnose myoglobinemia in a corpse. To address this issue, in this study, we used a lipidomics approach to identify markers that can be used to detect myoglobinemia in postmortem blood samples...
August 15, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28808666/lipidomic-evaluation-of-feline-neurologic-disease-after-aav-gene-therapy
#2
Heather L Gray-Edwards, Xuntian Jiang, Ashley N Randle, Amanda R Taylor, Taylor L Voss, Aime K Johnson, Victoria J McCurdy, Miguel Sena-Esteves, Daniel S Ory, Douglas R Martin
GM1 gangliosidosis is a fatal lysosomal disorder, for which there is no effective treatment. Adeno-associated virus (AAV) gene therapy in GM1 cats has resulted in a greater than 6-fold increase in lifespan, with many cats remaining alive at >5.7 years of age, with minimal clinical signs. Glycolipids are the principal storage product in GM1 gangliosidosis whose pathogenic mechanism is not completely understood. Targeted lipidomics analysis was performed to better define disease mechanisms and identify markers of disease progression for upcoming clinical trials in humans...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28807032/liquid-chromatography-mass-spectrometry-based-profiling-of-phosphatidylcholine-and-phosphatidylethanolamine-in-the-plasma-and-liver-of-acetaminophen-induced-liver-injured-mice
#3
Ya-Nan Ming, Jing-Yi Zhang, Xiao-Lin Wang, Chun-Min Li, Si-Cong Ma, Zheng-Yang Wang, Xiao-Lin Liu, Xiao-Bo Li, Yi-Min Mao
BACKGROUND: Acetaminophen (APAP) overdose is one of the most common causes of acute liver failure in many countries. The aim of the study was to describe the profiling of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) in the plasma and liver of Acetaminophen -induced liver injured mice. METHODS: A time course study was carried out using C57BL/6 mice after intraperitoneal administration of 300 mg/kg Acetaminophen 1 h, 3 h, 6 h, 12 h and 24 h. A high-throughput liquid chromatography mass spectrometry (LC-MS) lipidomic method was utilized to detect phosphatidylcholine and phosphatidylethanolamine species in the plasma and liver...
August 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28805384/lipidomics-insights-in-health-and-nutritional-intervention-studies
#4
Clara Ibañez, Lamia Mouhid, Guillermo Reglero, Ana Ramirez de Molina
Lipids are among the major components of food and constitute the principal structural biomolecules of human body together with proteins and carbohydrates. Lipidomics encompasses the investigation of the lipidome, defined as the entire spectrum of lipids in a biological system at a given time. Among metabolomics technologies, Lipidomics has evolved due to the relevance of lipids in nutrition and their well-recognized roles in health. Mass spectrometry advances have greatly facilitated Lipidomics but owing to the complexity and diversity of the lipids, lipidome purification and analysis is still challenging...
August 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28800645/analysis-of-endogenous-lipids-during-intestinal-wound-healing
#5
Yunna Lee, Jieun Choo, Su Jin Kim, Gwangbeom Heo, Charalabos Pothoulakis, Yong-Hak Kim, Eunok Im
Intestinal wound healing is a new therapeutic goal for inflammatory bowel disease (IBD) as complete healing of the mucosa is the key element of clinical remission in IBD. Previous studies showed that termination of inflammation can be achieved by adding pro-resolving lipids like DHA and EPA exogenously. However, the roles of these lipids in mucosal healing have not been investigated. To recapitulate intestinal healing process, mice were received dextran sodium sulfate (DSS) for 7 days in the drinking water followed by regular tap water for 5 additional days...
2017: PloS One
https://www.readbyqxmd.com/read/28798251/lungmap-the-molecular-atlas-of-lung-development-program
#6
Maryanne E Ardini-Poleske, Robert Fred Clark, Charles Ansong, James P Carson, Richard A Corley, Gail H Deutsch, James S Hagood, Naftali Kaminski, Thomas J Mariani, Steven S Potter, Gloria S Pryhuber, David Warburton, Jeffrey A Whitsett, Scott M Palmer, Namasivayam Ambalavanan, The LungMAP Consortium
The National Heart Lung and Blood Institute is funding an effort to create a molecular atlas of the developing lung (LungMAP) to serve as a research resource and public education tool. The lung is a complex organ with lengthy development time driven by interactive gene networks and dynamic crosstalk among multiple cell types to control and coordinate lineage specification, cell proliferation, differentiation, migration, morphogenesis and injury repair. A better understanding of the processes that regulate lung development, particularly alveologenesis, will have significant impact on survival rates for premature infants born with incomplete lung development and will facilitate lung injury repair and regeneration in adults...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28793282/increased-risk-of-atherosclerosis-in-patients-with-sarcoidosis
#7
Elena Bargagli, Elisabetta Rosi, Massimo Pistolesi, Federico Lavorini, Luca Voltolini, Paola Rottoli
Sarcoidosis is a systemic granulomatous disease of unknown etiology. Recent studies demonstrated that its pathogenesis is related with enhanced oxidative stress (protein carbonylation and lipid peroxidation) and alterations in the circulating lipid profile. Alterations of lipid metabolism (including the reduction in high-density lipoprotein cholesterol levels and apolipoprotein A1 concentrations) induce plasma membrane, bronchial and lung capillary endothelial cell damage in sarcoidosis patients. Dyslipidemia is associated with increased oxidative stress, diminished overall antioxidative protection and increased risk for atherosclerosis...
August 10, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28792021/hyphenated-ms-based-targeted-approaches-in-metabolomics
#8
REVIEW
O Begou, H G Gika, I D Wilson, G Theodoridis
While global metabolic profiling (untargeted metabolomics) has been the center of much interest and research activity in the past few decades, more recently targeted metabolomics approaches have begun to gain ground. These analyses are, to an extent, more hypothesis-driven, as they focus on a set of pre-defined metabolites and aim towards their determination, often to the point of absolute quantification. The continuous development of the technological platforms used in these studies facilitates the analysis of large numbers of well-characterized metabolites present in complex matrices...
August 9, 2017: Analyst
https://www.readbyqxmd.com/read/28789919/identification-of-long-and-very-long-chain-fatty-acids-plasmalogen-c16-0-and-phytanic-acid-as-new-lipid-biomarkers-in-tunisian-coronary-artery-disease-patients
#9
Samia Hadj Ahmed, Nadia Koubaa, Wafa Kharroubi, Amira Zarrouk, Amira Mnari, Fethi Batbout, Habib Gamra, Sonia Hammami, Gérard Lizard, Mohamed Hammami
Long and very long chain fatty acids (LCFAs and VLCFAs) may play an active role in coronary artery diseases (CAD) etiology. Our aim was to evaluate the associations between LCPUFAs (C20:4n-6; C20:5n-3 and C22:6n-3) and VLCSFAs (C22:0, C24:0; and C26:0), as well as markers of peroxisomal integrity evaluated by phytanic acid and plasmalogen-C16:0 (PL-C16:0) in addition to the markers of lipid peroxidation (malondialdehyde [MDA] and conjugated dienes [CD]) and inflammation (high sensitivity C-reactive protein [hs-CRP]) with vascular severity evaluated by Gensini score in order to determine their possible effects on CAD in Tunisian population...
August 5, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28783713/aging-and-sarcopenia-associate-with-specific-interactions-between-gut-microbes-serum-biomarkers-and-host-physiology-in-rats
#10
Jay Siddharth, Anirikh Chakrabarti, Alice Pannérec, Sonia Karaz, Delphine Morin-Rivron, Mojgan Masoodi, Jerome N Feige, Scott James Parkinson
The microbiome has been demonstrated to play an integral role in the maintenance of many aspects of health that are also associated with aging. In order to identify areas of potential exploration and intervention, we simultaneously characterized age-related alterations in gut microbiome, muscle physiology and serum proteomic and lipidomic profiles in aged rats to define an integrated signature of the aging phenotype. We demonstrate that aging skews the composition of the gut microbiome, in particular by altering the Sutterella to Barneseilla ratio, and alters the metabolic potential of intestinal bacteria...
July 17, 2017: Aging
https://www.readbyqxmd.com/read/28774777/insights-into-the-role-of-hepatocyte-ppar%C3%AE-activity-in-response-to-fasting
#11
REVIEW
Marion Régnier, Arnaud Polizzi, Yannick Lippi, Edwin Fouché, Géraldine Michel, Céline Lukowicz, Sarra Smati, Alain Marrot, Frédéric Lasserre, Claire Naylies, Aurélie Batut, Fanny Viars, Justine Bertrand-Michel, Catherine Postic, Nicolas Loiseau, Walter Wahli, Hervé Guillou, Alexandra Montagner
The liver plays a central role in the regulation of fatty acid metabolism. Hepatocytes are highly sensitive to nutrients and hormones that drive extensive transcriptional responses. Nuclear hormone receptors are key transcription factors involved in this process. Among these factors, PPARα is a critical regulator of hepatic lipid catabolism during fasting. This study aimed to analyse the wide array of hepatic PPARα-dependent transcriptional responses during fasting. We compared gene expression in male mice with a hepatocyte specific deletion of PPARα and their wild-type littermates in the fed (ad libitum) and 24-h fasted states...
July 31, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28771624/lc-ms-ms-versus-tlc-plus-gc-methods-consistency-of-glycerolipid-and-fatty-acid-profiles-in-microalgae-and-higher-plant-cells-and-effect-of-a-nitrogen-starvation
#12
Juliette Jouhet, Josselin Lupette, Olivier Clerc, Leonardo Magneschi, Mariette Bedhomme, Séverine Collin, Sylvaine Roy, Eric Maréchal, Fabrice Rébeillé
Methods to analyze lipidomes have considerably evolved, more and more based on mass spectrometry technics (LC-MS/MS). However, accurate quantifications using these methods require 13C-labeled standards for each lipid, which is not feasible because of the very large number of molecules. Thus, quantifications rely on standard molecules representative of a whole class of lipids, which might lead to false estimations of some molecular species. Here, we determined and compared glycerolipid distributions from three different types of cells, two microalgae (Phaeodactylum tricornutum, Nannochloropsis gaditana) and one higher plant (Arabidopsis thaliana), using either LC-MS/MS or Thin Layer Chromatography coupled with Gas Chromatography (TLC-GC), this last approach relying on the precise quantification of the fatty acids present in each glycerolipid class...
2017: PloS One
https://www.readbyqxmd.com/read/28768909/addressing-metabolic-heterogeneity-in-clear-cell-renal-cell-carcinoma-with-quantitative-dixon-mri
#13
Yue Zhang, Durga Udayakumar, Ling Cai, Zeping Hu, Payal Kapur, Eun-Young Kho, Andrea Pavía-Jiménez, Michael Fulkerson, Alberto Diaz de Leon, Qing Yuan, Ivan E Dimitrov, Takeshi Yokoo, Jin Ye, Matthew A Mitsche, Hyeonwoo Kim, Jeffrey G McDonald, Yin Xi, Ananth J Madhuranthakam, Durgesh K Dwivedi, Robert E Lenkinski, Jeffrey A Cadeddu, Vitaly Margulis, James Brugarolas, Ralph J DeBerardinis, Ivan Pedrosa
BACKGROUND: Dysregulated lipid and glucose metabolism in clear cell renal cell carcinoma (ccRCC) has been implicated in disease progression, and whole tumor tissue-based assessment of these changes is challenged by the tumor heterogeneity. We studied a noninvasive quantitative MRI method that predicts metabolic alterations in the whole tumor. METHODS: We applied Dixon-based MRI for in vivo quantification of lipid accumulation (fat fraction [FF]) in targeted regions of interest of 45 primary ccRCCs and correlated these MRI measures to mass spectrometry-based lipidomics and metabolomics of anatomically colocalized tissue samples isolated from the same tumor after surgery...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28768533/progression-of-pathology-in-pink1-deficient-mouse-brain-from-splicing-via-ubiquitination-er-stress-and-mitophagy-changes-to-neuroinflammation
#14
Sylvia Torres-Odio, Jana Key, Hans-Hermann Hoepken, Júlia Canet-Pons, Lucie Valek, Bastian Roller, Michael Walter, Blas Morales-Gordo, David Meierhofer, Patrick N Harter, Michel Mittelbronn, Irmgard Tegeder, Suzana Gispert, Georg Auburger
BACKGROUND: PINK1 deficiency causes the autosomal recessive PARK6 variant of Parkinson's disease. PINK1 activates ubiquitin by phosphorylation and cooperates with the downstream ubiquitin ligase PARKIN, to exert quality control and control autophagic degradation of mitochondria and of misfolded proteins in all cell types. METHODS: Global transcriptome profiling of mouse brain and neuron cultures were assessed in protein-protein interaction diagrams and by pathway enrichment algorithms...
August 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28766182/lipidomics-and-anti-trypanosomatid-chemotherapy
#15
REVIEW
Michael Biagiotti, Sedelia Dominguez, Nader Yamout, Rachel Zufferey
BACKGROUND: Trypanosomatids such as Leishmania, Trypanosoma brucei and Trypanosoma cruzi belong to the order Kinetoplastida and are the source of many significant human and animal diseases. Current treatment is unsatisfactory and is compromised by the rising appearance of drug resistant parasites. Novel and more effective chemotherapeutics are urgently needed to treat and prevent these devastating diseases, which relies on the identification of essential, parasite specific targets that are absent in the host...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28764323/lipidccs-prediction-of-collision-cross-section-values-for-lipids-with-high-precision-to-support-ion-mobility-mass-spectrometry-based-lipidomics
#16
Zhiwei Zhou, Jia Tu, Xin Xiong, Xiaotao Shen, Zheng-Jiang Zhu
The use of collision cross-section (CCS) values derived from ion mobility-mass spectrometry (IM-MS) has been proven to facilitate lipid identifications. Its utility is restricted by the limited available CCS values. Recently, the machine-learning algorithm based prediction (e.g., MetCCS) is reported to generate CCS values in a large-scale. However, the prediction precision is not sufficient to differentiate lipids due to their high structural similarities and subtle differences on CCS values. To address this challenge, we developed a new approach, namely, LipidCCS, to precisely predict lipid CCS values...
August 1, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28762068/profiling-of-cardiolipins-and-their-hydroperoxides-in-hepg2-cells-by-lc-ms
#17
Zhen Chen, Yue Wu, Yi-Shing Ma, Yuu Kobayashi, Yao-Yao Zhao, Yusuke Miura, Hitoshi Chiba, Shu-Ping Hui
Cardiolipin (CL) exists as crucial functional phospholipid in mitochondria. The oxidation of CL is concerned with mitochondrial dysfunction and various diseases. As main oxidation products, CL hydroperoxide (CL-OOH) plays a key role in intermediating oxidative reaction. Thus, direct analysis of CL-OOH is of great interest. In the present study, CL and CL-OOH profiles were analyzed in oxidized HepG2 cell lipid via HPLC-Orbitrap MS/MS. Furthermore, the contents of individual molecular species were compared between intact and AAPH-oxidized HepG2 cells...
July 31, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28761044/resveratrol-reverses-the-warburg-effect-by-targeting-the-pyruvate-dehydrogenase-complex-in-colon-cancer-cells
#18
Elise Saunier, Samantha Antonio, Anne Regazzetti, Nicolas Auzeil, Olivier Laprévote, Jerry W Shay, Xavier Coumoul, Robert Barouki, Chantal Benelli, Laurence Huc, Sylvie Bortoli
Resveratrol (RES), a polyphenol found in natural foods, displays anti-oxidant, anti-inflammatory and anti-proliferative properties potentially beneficial in cancers, in particular in the prevention of tumor growth. However, the rapid metabolism of resveratrol strongly limits its bioavailability. The molecular mechanisms sustaining the potential biological activity of low doses of resveratrol has not been extensively studied and, thus, needs better characterization. Here, we show that resveratrol (10 µM, 48 hr) induces both a cell growth arrest and a metabolic reprogramming in colon cancer cells...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28754302/immunometabolic-and-lipidomic-markers-associated-with-the-frailty-index-and-quality-of-life-in-aging-hiv-men-on-antiretroviral-therapy
#19
Hui-Ling Yeoh, Allen C Cheng, Catherine L Cherry, Jacquelyn M Weir, Peter J Meikle, Jennifer F Hoy, Suzanne M Crowe, Clovis S Palmer
Chronic immune activation persists despite antiretroviral therapy (ART) in HIV+ individuals and underpins an increased risk of age-related co-morbidities. We assessed the Frailty Index in older HIV+ Australian men on ART. Immunometabolic markers on monocytes and T cells were analyzed using flow cytometry, plasma innate immune activation markers by ELISA, and lipidomic profiling by mass spectrometry. The study population consisted of 80 HIV+ men with a median age of 59 (IQR, 56-65), and most had an undetectable viral load (92%)...
August 2017: EBioMedicine
https://www.readbyqxmd.com/read/28753886/distinct-lipidomic-landscapes-associated-with-clinical-stages-of-urothelial-cancer-of-the-bladder
#20
Danthasinghe Waduge Badrajee Piyarathna, Thekkelnaycke M Rajendiran, Vasanta Putluri, Venkatrao Vantaku, Tanu Soni, Friedrich-Carl von Rundstedt, Sri Ramya Donepudi, Feng Jin, Suman Maity, Chandrashekar R Ambati, Jianrong Dong, Daniel Gödde, Stephan Roth, Stephan Störkel, Stephan Degener, George Michailidis, Seth P Lerner, Subramaniam Pennathur, Yair Lotan, Cristian Coarfa, Arun Sreekumar, Nagireddy Putluri
BACKGROUND: The first global lipidomic profiles associated with urothelial cancer of the bladder (UCB) and its clinical stages associated with progression were identified. OBJECTIVE: To identify lipidomic signatures associated with survival and different clinical stages of UCB. DESIGN, SETTING, AND PARTICIPANTS: Pathologically confirmed 165 bladder-derived tissues (126 UCB, 39 benign adjacent or normal bladder tissues). UCB tissues included Ta (n=16), T1 (n=30), T2 (n=43), T3 (n=27), and T4 (n=9); lymphovascular invasion (LVI) positive (n=52) and negative (n=69); and lymph node status N0 (n=28), N1 (n=11), N2 (n=9), N3 (n=3), and Nx (n=75)...
April 20, 2017: European Urology Focus
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