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lipidomic biomarkers

Zahir H Alshehry, Piyushkumar A Mundra, Christopher K Barlow, Natalie A Mellett, Gerard Wong, Malcolm J McConville, John Simes, Andrew M Tonkin, David R Sullivan, Elizabeth H Barnes, Paul J Nestel, Bronwyn A Kingwell, Michel Marre, Bruce Neal, Neil R Poulter, Anthony Rodgers, Bryan Williams, Sophia Zoungas, Graham S Hillis, John Chalmers, Mark Woodward, Peter J Meikle
BACKGROUND: -Clinical lipid measurements do not show the full complexity of the altered lipid metabolism associated with diabetes or cardiovascular disease. Lipidomics enables the assessment of hundreds of lipid species as potential markers for disease risk. METHODS: -Plasma lipid species (310) were measured by a targeted lipidomic analysis with liquid chromatography electrospray ionisation-tandem mass spectrometry on a case-cohort (n=3,779) subset from the ADVANCE (Action in Diabetes and Vascular disease: preterAx and diamicroN-MR Controlled Evaluation) trial...
October 18, 2016: Circulation
Shrestha Priyadarsini, Tina B McKay, Akhee Sarker-Nag, Jeremy Allegood, Charles Chalfant, Jian-Xing Ma, Dimitrios Karamichos
Prolonged hyperglycemia during diabetes mellitus can cause severe ophthalmic complications affecting both the anterior and posterior ocular segments leading to impaired vision or blindness. Diabetes-induced corneal pathologies are associated with decreased wound healing capacity, corneal edema, and altered epithelial basement membrane. The mechanism by which diabetes modulates structure and function within the corneal stroma are unknown. In our study, we characterized the effects of diabetes on extracellular matrix, lipid transport, and cellular metabolism by defining the entire metabolome and lipidome of Type 1 and Type 2 human diabetic corneal stroma...
October 11, 2016: Experimental Eye Research
Carlos Fernando Odir Rodrigues Melo, Diogo Noin de Oliveira, Estela de Oliveira Lima, Tatiane Melina Guerreiro, Cibele Zanardi Esteves, Raissa Marques Beck, Marina Aiello Padilla, Guilherme Paier Milanez, Clarice Weis Arns, José Luiz Proença-Modena, Jayme Augusto Souza-Neto, Rodrigo Ramos Catharino
Recent outbreaks of Zika virus in Oceania and Latin America, accompanied by unexpected clinical complications, made this infection a global public health concern. This virus has tropism to neural tissue, leading to microcephaly in newborns in a significant proportion of infected mothers. The clinical relevance of this infection, the difficulty to perform accurate diagnosis and the small amount of data in literature indicate the necessity of studies on Zika infection in order to characterize new biomarkers of this infection and to establish new targets for viral control in vertebrates and invertebrate vectors...
2016: PloS One
Anthony Au, Kian-Kai Cheng, Loo Keat Wei
Hypertension is a common but complex human disease, which can lead to a heart attack, stroke, kidney disease or other complications. Since the pathogenesis of hypertension is heterogeneous and multifactorial, it is crucial to establish a comprehensive metabolomic approach to elucidate the molecular mechanism of hypertension. Although there have been limited metabolomic, lipidomic and pharmacometabolomic studies investigating this disease to date, metabolomic studies on hypertension have provided greater insights into the identification of disease-specific biomarkers, predicting treatment outcome and monitor drug safety and efficacy...
October 9, 2016: Advances in Experimental Medicine and Biology
Núria Taltavull, Rosa Ras, Sílvia Mariné, Marta Romeu, Montserrat Giralt, Lucía Méndez, Isabel Medina, Sara Ramos-Romero, Josep L Torres, M Rosa Nogués
A high intake of fat and sucrose can dramatically increase bioactive lipids such as ceramides in tissues. Ceramides regulate several steps in the insulin signal pathway. The effects of n-3 PUFA on insulin resistance are inconsistent, especially in liver. We investigated the effect of n-3 PUFA (EPA/DHA 1 : 1) from fish oil on hepatic ceramides in a pre-diabetic animal model. Three groups of rats were fed standard feed, high fat high sucrose feed (HFHS) or HFHS enriched with n-3 PUFA. We investigated by lipidomic analysis how supplementation of a HFHS diet with n-3 PUFA modifies the hepatic ceramide profile triggered by a HFHS diet...
September 14, 2016: Food & Function
Libia Alejandra García-Flores, Sonia Medina, Camille Oger, Jean-Marie Galano, Thierry Durand, Roberto Cejuela, José Miguel Martínez-Sanz, Federico Ferreres, Ángel Gil-Izquierdo
The aim of the this study was to determine the effect of a polyphenols-rich juice (aronia-citrus juice, ACJ) on F4-neuroprostanes and F2-dihomo-isoprostanes-markers of oxidative stress associated with the central nervous system (CNS)-in 16 elite triathletes under a controlled diet for triathlon training (145 days). In the triathletes, a decrease of the lipid peroxidation markers after ACJ intake, associated with neuronal membrane degradation (10-epi-10-F4t-neuroprostane and 10-F4t-neuroprostane), was observed when compared with placebo stage values...
October 12, 2016: Food & Function
Liangjian Lu, Albert Koulman, Clive J Petry, Benjamin Jenkins, Lee Matthews, Ieuan A Hughes, Carlo L Acerini, Ken K Ong, David B Dunger
OBJECTIVE: To investigate the relationship between early second trimester serum lipidomic variation and maternal glycemic traits at 28 weeks, and to identify predictive lipid biomarkers for gestational diabetes mellitus (GDM). RESEARCH DESIGN AND METHODS: Prospective study of 817 pregnant women (discovery cohort, n = 200; validation cohort, n = 617) who provided an early second trimester serum sample, and underwent an oral glucose tolerance test (OGTT) at 28 weeks...
October 4, 2016: Diabetes Care
Petroula Proitsi, Min Kim, Luke Whiley, Andrew Simmons, Martina Sattlecker, Latha Velayudhan, Michelle K Lupton, Hillka Soininen, Iwona Kloszewska, Patrizia Mecocci, Magda Tsolaki, Bruno Vellas, Simon Lovestone, John F Powell, Richard J B Dobson, Cristina Legido-Quigley
INTRODUCTION: The aim of this study was to (1) replicate previous associations between six blood lipids and Alzheimer's disease (AD) (Proitsi et al 2015) and (2) identify novel associations between lipids, clinical AD diagnosis, disease progression and brain atrophy (left/right hippocampus/entorhinal cortex). METHODS: We performed untargeted lipidomic analysis on 148 AD and 152 elderly control plasma samples and used univariate and multivariate analysis methods...
September 28, 2016: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
Joan Bestard-Escalas, Jone Garate, Albert Maimó-Barceló, Roberto Fernández, Daniel Horacio Lopez, Sergio Lage, Rebeca Reigada, Sam Khorrami, Daniel Ginard, José Reyes, Isabel Amengual, José A Fernández, Gwendolyn Barceló-Coblijn
Membrane lipids are gaining increasing attention in the clinical biomarker field, as they are associated with different pathologic processes such as cancer or neurodegenerative diseases. Analyzing human colonoscopic sections by matrix assisted laser/desorption ionization (MALDI) mass spectrometry imaging techniques, we identified a defined number of lipid species changing concomitant to the colonocyte differentiation and according to a quite simple mathematical expression. These species felt into two lipid families tightly associated in signaling: phosphatidylinositols and arachidonic acid-containing lipids...
September 20, 2016: Biochimica et Biophysica Acta
Emily G Armitage, Andrew D Southam
INTRODUCTION: Cellular metabolism is altered during cancer initiation and progression, which allows cancer cells to increase anabolic synthesis, avoid apoptosis and adapt to low nutrient and oxygen availability. The metabolic nature of cancer enables patient cancer status to be monitored by metabolomics and lipidomics. Additionally, monitoring metabolic status of patients or biological models can be used to greater understand the action of anticancer therapeutics. OBJECTIVES: Discuss how metabolomics and lipidomics can be used to (i) identify metabolic biomarkers of cancer and (ii) understand the mechanism-of-action of anticancer therapies...
2016: Metabolomics: Official Journal of the Metabolomic Society
Xin Huang, Jun Zeng, Lina Zhou, Chunxiu Hu, Peiyuan Yin, Xiaohui Lin
Time-series metabolomics studies can provide insight into the dynamics of disease development and facilitate the discovery of prospective biomarkers. To improve the performance of early risk identification, a new strategy for analyzing time-series data based on dynamic networks (ATSD-DN) in a systematic time dimension is proposed. In ATSD-DN, the non-overlapping ratio was applied to measure the changes in feature ratios during the process of disease development and to construct dynamic networks. Dynamic concentration analysis and network topological structure analysis were performed to extract early warning information...
2016: Scientific Reports
Junnan Li, Hongyu Xie, Ang Li, Jinlong Cheng, Kai Yang, Jingtao Wang, Wenjie Wang, Fan Zhang, Zhenzi Li, Harman S Dhillon, Margarita S Openkova, Xiaohua Zhou, Kang Li, Yan Hou
Epithelial ovarian cancer (EOC) is the most deadly gynecologic malignancy worldwide due to its high recurrence rate after surgery and chemotherapy. There is a critical need for discovery of novel biomarkers for EOC recurrence providing higher prediction power than that of the present ones. Lipids have been reported to associate with development and progression of cancer. In the current study, we aim to identify and validate the lipids which were relevant to the ovarian cancer recurrence based on plasma lipidomics performed by ultra-performance liquid chromatography coupled with mass spectrometry...
August 25, 2016: Oncotarget
Linsey E Lindley, Olivera Stojadinovic, Irena Pastar, Marjana Tomic-Canic
BACKGROUND: As the population grows older, the incidence and prevalence of conditions that lead to a predisposition for poor wound healing also increase. Ultimately, this increase in nonhealing wounds has led to significant morbidity and mortality with subsequent huge economic ramifications. Therefore, understanding specific molecular mechanisms underlying aberrant wound healing is of great importance. It has and will continue to be the leading pathway to the discovery of therapeutic targets, as well as diagnostic molecular biomarkers...
September 2016: Plastic and Reconstructive Surgery
Edward A Dennis
In 1970, it was well accepted that the central role of lipids was in energy storage and metabolism and it was assumed that amphipathic lipids simply served a passive structural role as the backbone of biological membranes. As a result, the scientific community was focused on nucleic acids, proteins, and carbohydrates as information-containing molecules. It took considerable effort until scientists accepted that lipids also 'encode' specific and unique biological information and play a central role in cell signaling...
August 23, 2016: Journal of Biological Chemistry
Krishnatej Nishtala, Natasha Pahuja, Rohit Shetty, Rudy M M A Nuijts, Arkasubhra Ghosh
Keratoconus is a progressive corneal thinning, ectatic condition, which affects vision. Recent advances in corneal topography measurements has helped advance proper diagnosis of this condition and increased research and clinical interests in the disease etiopathogenesis. Considerable progress has been achieved in understanding the progression of the disease and tear fluid has played a major role in the progress. This review discusses the importance of tear fluid as a source of biomarker for keratoconus and how advances in technology have helped map the complexity of tears and thereby molecular readouts of the disease...
2016: Eye and Vision (London, England)
Zhi-Xin Jia, Jin-Lan Zhang, Chun-Ping Shen, Lin Ma
Skin, the largest organ of the human body, serves as the primary barrier to the external environment. Ceramides are one of the main constituents of stratum corneum (SC), playing an important role in skin barrier function. Therefore, comprehensive profiling and quantification of SC ceramide is important. Herein, a new targeted lipidomic method for human SC ceramide profiling and quantification is presented and tested. Normal-phase high-performance liquid chromatography coupled with dynamic multiple reaction monitoring mass spectrometry (NP-HPLC-dMRM-MS) was used to separate ceramides into subclasses and then characterize different ceramides within each subclass on the basis of their characteristics...
September 2016: Analytical and Bioanalytical Chemistry
Malgorzata Bukowiecka-Matusiak, Malgorzata Chmielewska-Kassassir, Dorota Szczesna, Lucyna A Wozniak
In recent years, metabolomics has become a necessary tool for understanding the impact of external and pathological factors on the operation of biological systems. The first reports of metabolomics date back to the 1970s, however, the area only began to develop dynamically at the beginning of this century and has proved effective only during the present decade. The five primary tools used in this form of analysis are NMR spectrometry, HPLC, TLC-UV, GC-MS and LC-MS/MS, with MS as the most universal approach, particularly when used together with chromatographic separation and NMR...
2016: Mini Reviews in Medicinal Chemistry
Xinyu Liu, Jia Li, Peng Zheng, Xinjie Zhao, Chanjuan Zhou, Chunxiu Hu, Xiaoli Hou, Haiyang Wang, Peng Xie, Guowang Xu
Major depressive disorder (MDD) is a grave debilitating mental disease with a high incidence and severely impairs quality of life. Therefore, its physiopathological basis study and diagnostic biomarker discovery are extremely valuable. In this study, a non-targeted lipidomics strategy using ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) was performed to reveal differential lipids between MDD (n = 60) and healthy controls (HCs, n = 60)...
September 2016: Analytical and Bioanalytical Chemistry
Qianghua Hu, Miao Wang, Min Soon Cho, Chunyan Wang, Alpa M Nick, Perumal Thiagarajan, Fleur M Aung, Xianlin Han, Anil K Sood, Vahid Afshar-Kharghan
BACKGROUND: Ovarian cancer patients have a high risk of developing venous thrombosis. The membrane lipid bilayer of platelets and platelet-derived microparticles (PMP) provides a platform for assembly of coagulation proteins and generation of blood clots. METHODS: We compared the lipid composition of platelets and PMPs in patients with ovarian cancer to those in healthy subjects. We used shotgun lipidomics to quantify 12 classes and 177 species of lipids. RESULTS: We found a significant change in 2 classes of lipids in platelets and PMPs isolated from ovarian cancer patients: higher phosphatidylinositol and lower lyso-phosphatidylcholine...
December 2016: BBA Clinical
Nawaporn Vinayavekhin, Jetjamnong Sueajai, Nichaboon Chaihad, Ratchanee Panrak, Ratchanaporn Chokchaisiri, Polkit Sangvanich, Apichart Suksamrarn, Pawinee Piyachaturawat
ETHNOPHARMACOLOGICAL RELEVANCE: Curcuma comosa Roxb. (C. comosa) or Wan Chak Motluk, Zingiberaceae family, has been used in Thai traditional medicine for the treatment of gynecological problems and inflammation. AIM OF THE STUDY: This study aimed to investigate the therapeutic potential of C. comosa by determining the changes in the lipid profiles in the ovariectomized rats, as a model of estrogen-deficiency-induced hyperlipidemia, after treatment with different components of C...
November 4, 2016: Journal of Ethnopharmacology
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