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https://www.readbyqxmd.com/read/28912717/global-metabolomics-reveals-the-metabolic-dysfunction-in-ox-ldl-induced-macrophage-derived-foam-cells
#1
Wenjuan Xu, Ziyi Wei, Jiaojiao Dong, Feipeng Duan, Kuikui Chen, Chang Chen, Jie Liu, Xiaowei Yang, Lianming Chen, Hongbin Xiao, An Liu
Atherosclerosis (AS) is a chronic disorder of large arteries that is a major risk factors of high morbidity and mortality. Oxidative modification LDL is one of the important contributors to atherogenesis. Macrophages take up ox-LDL and convert into foam cells, which is the hallmark of AS. To advance the understanding of the metabolic perturbation involved in ox-LDL induced macrophage-derived foam cells and discover the potential biomarkers of early AS, a global metabolomics approach was applied based on UHPLC-QTOF/MS...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28911613/proteomic-changes-associated-with-metabolic-syndrome-in-a-fructose-fed-rat-model
#2
Cheng-Chu Hsieh, Chen-Chung Liao, Yi-Chun Liao, Lucy Sun Hwang, Liang-Yi Wu, Shu-Chen Hsieh
Metabolic syndrome (MetS), characterized by a constellation of disorders such as hyperglycemia, insulin resistance, and hypertension, is becoming a major global public health problem. Fructose consumption has increased dramatically over the past several decades and with it the incidence of MetS. However, its molecular mechanisms remain to be explored. In this study, we used male Sprague-Dawley (SD) rats to study the pathological mechanism of fructose induced MetS. The SD rats were fed a 60% high-fructose diet for 16 weeks to induce MetS...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28891024/resveratrol-supplementation-improves-lipid-and-glucose-metabolism-in-high-fat-diet-fed-blunt-snout-bream
#3
Dingdong Zhang, Yanan Yan, Hongyan Tian, Guangzhen Jiang, Xiangfei Li, Wenbin Liu
Here, we aimed to investigate whether resveratrol (RSV) can ameliorate high-fat diet (HFD)-induced metabolic disorder in fish. Blunt snout bream (Megalobrama amblycephala) with average weight 27.99 ± 0.56 g were fed a normal fat diet (NFD, 5% fat, w/w), a HFD (11% fat), or a HFD supplemented with 0.04, 0.36, or 1.08% RSV for 10 weeks. As expected, fish fed a HFD developed hepatic steatosis, as shown by elevated hepatic and plasma triglycerides, raised whole body fat, intraperitoneal fat ratio and hepatosomatic index, and increased plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST)...
September 10, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28888986/pde-5-inhibitor-improves-insulin-sensitivity-by-enhancing-mitochondrial-function-in-adipocytes
#4
Hea Min Yu, Hyo Kyun Chung, Koon Soon Kim, Jae Min Lee, Jun Hwa Hong, Kang Seo Park
Adipocytes are involved in many metabolic disorders. It was recently reported that phosphodiesterase type 5 (PDE5) is expressed in human adipose tissue. In addition, PDE5 inhibitors have been shown to improve insulin sensitivity in humans. However, the mechanism underlying the role of PDE5 inhibitors as an insulin sensitizer remains largely unknown. The present study was undertaken to investigate the role of the PDE5 inhibitor udenafil in insulin signaling in adipocytes and whether this is mediated through the regulation of mitochondrial function...
September 6, 2017: Biochemical and Biophysical Research Communications
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
#5
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/28883393/fas-cell-surface-death-receptor-controls-hepatic-lipid-metabolism-by-regulating-mitochondrial-function
#6
Flurin Item, Stephan Wueest, Vera Lemos, Sokrates Stein, Fabrizio C Lucchini, Rémy Denzler, Muriel C Fisser, Tenagne D Challa, Eija Pirinen, Youngsoo Kim, Silvio Hemmi, Erich Gulbins, Atan Gross, Lorraine A O'Reilly, Markus Stoffel, Johan Auwerx, Daniel Konrad
Nonalcoholic fatty liver disease is one of the most prevalent metabolic disorders and it tightly associates with obesity, type 2 diabetes, and cardiovascular disease. Reduced mitochondrial lipid oxidation contributes to hepatic fatty acid accumulation. Here, we show that the Fas cell surface death receptor (Fas/CD95/Apo-1) regulates hepatic mitochondrial metabolism. Hepatic Fas overexpression in chow-fed mice compromises fatty acid oxidation, mitochondrial respiration, and the abundance of mitochondrial respiratory complexes promoting hepatic lipid accumulation and insulin resistance...
September 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28882140/role-of-mitochondrial-dysfunction-and-dysregulation-of-ca-2-homeostasis-in-the-pathophysiology-of-insulin-resistance-and-type-2-diabetes
#7
REVIEW
Chih-Hao Wang, Yau-Huei Wei
Metabolic diseases such as obesity, type 2 diabetes (T2D) and insulin resistance have attracted great attention from biomedical researchers and clinicians because of the astonishing increase in its prevalence. Decrease in the capacity of oxidative metabolism and mitochondrial dysfunction are a major contributor to the development of these metabolic disorders. Recent studies indicate that alteration of intracellular Ca(2+) levels and downstream Ca(2+)-dependent signaling pathways appear to modulate gene transcription and the activities of many enzymes involved in cellular metabolism...
September 7, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28871440/triheptanoin-versus-trioctanoin-for-long-chain-fatty-acid-oxidation-disorders-a-double-blinded-randomized-controlled-trial
#8
Melanie B Gillingham, Stephen B Heitner, Julie Martin, Sarah Rose, Amy Goldstein, Areeg Hassan El-Gharbawy, Stephanie Deward, Michael R Lasarev, Jim Pollaro, James P DeLany, Luke J Burchill, Bret Goodpaster, James Shoemaker, Dietrich Matern, Cary O Harding, Jerry Vockley
BACKGROUND: Observational reports suggest that supplementation that increases citric acid cycle intermediates via anaplerosis may have therapeutic advantages over traditional medium-chain triglyceride (MCT) treatment of long-chain fatty acid oxidation disorders (LC-FAODs) but controlled trials have not been reported. The goal of our study was to compare the effects of triheptanoin (C7), an anaplerotic seven-carbon fatty acid triglyceride, to trioctanoin (C8), an eight-carbon fatty acid triglyceride, in patients with LC-FAODs...
September 4, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28868294/integration-of-proteomics-and-metabolomics-in-exploring-genetic-and-rare-metabolic-diseases
#9
REVIEW
Michele Costanzo, Miriam Zacchia, Giuliana Bruno, Daniela Crisci, Marianna Caterino, Margherita Ruoppolo
BACKGROUND: Inherited metabolic disorders or inborn errors of metabolism are caused by deficiency of enzymatic activities in the catabolism of amino acids, carbohydrates, or lipids. These disorders include aminoacidopathies, urea cycle defects, organic acidemias, defects of oxidation of fatty acids, and lysosomal storage diseases. Inborn errors of metabolism constitute a significant proportion of genetic diseases, particularly in children; however, they are individually rare. Clinical phenotypes are very variable, some of them remain asymptomatic, others manifest metabolic decompensation in neonatal age, and others encompass mental retardation at later age...
July 2017: Kidney Diseases
https://www.readbyqxmd.com/read/28856884/mass-spectrometric-detection-of-omega-oxidation-products-of-aliphatic-fatty-acids-in-exhaled-breath
#10
Martin Thomas Gaugg, Tobias Bruderer, Nora Nowak, Lara Eiffert, Pablo Martinez-Lozano Sinues, Malcolm Kohler, Renato Zenobi
Omega-oxidation is a fatty acid degradation pathway that can occur alternatively to the dominant β oxidation. The dysregulation of fatty acid oxidation has been related with a variety of diseases, termed fatty acid oxidation disorders. This work shows evidence for real-time detection in exhaled breath of the complete series of saturated linear ω hydroxyalkanoic acids, ω-oxoalkanoic acids and alkanedioic acids with carbon chain lengths of 5 15. We present a comprehensive analytical workflow using on-line and subsequent off-line methods: secondary electrospray ionization mass spectrometry of exhaled breath and UHPLC-HRMS/MS experiments using exhaled breath condensate, respectively...
August 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28851284/anesthetic-management-of-a-pediatric-patient-with-electron-transfer-flavoprotein-dehydrogenase-deficiency-etfdh-and-acute-appendicitis-case-report-and-review-of-the-literature
#11
Emmanuel Lilitsis, Elisavet Astyrakaki, Evaggelos Blevrakis, Sofia Xenaki, George Chalkiadakis, Emmanuel Chrysos
BACKGROUND: Mitochondria are the energy producing organelles practically in every human cell except erythrocytes. Indeed mitochondria are widespread in high energy requiring organs like brain, heart and muscles. Currently there are no clinical trials supporting with clear evidence which is the most suitable surgical or anesthetic management of a patient with known mitochondrial disease presenting with surgical disorders. This condition poses possible hazardous problems to the medical attention of those patients...
August 29, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28839231/genetic-deficiency-in-neuronal-peroxisomal-fatty-acid-%C3%AE-oxidation-causes-the-interruption-of-dauer-development-in-caenorhabditis-elegans
#12
Saeram Park, Young-Ki Paik
Although peroxisomal fatty acid (FA) β-oxidation is known to be critical for animal development, the cellular mechanisms that control the manner in which its neuronal deficiency causes developmental defects remain unclear. To elucidate the potential cellular consequences of neuronal FA metabolic disorder for dauer development, an alternative developmental process in Caenorhabditis elegans that occurs during stress, we investigated the sequential effects of its corresponding genetic deficiency. Here, we show that the daf-22 gene in peroxisomal FA β-oxidation plays a distinct role in ASK neurons, and its deficiency interrupts dauer development even in the presence of the exogenous ascaroside pheromones that induce such development...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28831148/effects-of-genotype-and-temperature-on-accumulation-of-plant-secondary-metabolites-in-canadian-and-australian-wheat-grown-under-controlled-environments
#13
Maryam Shamloo, Elizabeth A Babawale, Agnelo Furtado, Robert J Henry, Peter K Eck, Peter J H Jones
Predictions of global increased temperature are for 1.8-4 °C by 2100. Increased temperature as an abiotic stress may exert a considerable influence on the levels of secondary metabolites in plants. These secondary metabolites may possibly exert biological activities beneficial in prevention or treatment of disorders linked to oxidative stress in human. Wheat secondary compounds in three Canadian and three Australian genotypes grown under controlled environments, in which the only changing parameter was temperature, were investigated...
August 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820912/impact-of-novel-palmitoylated-prolactin-releasing-peptide-analogs-on-metabolic-changes-in-mice-with-diet-induced-obesity
#14
Veronika Pražienková, Martina Holubová, Helena Pelantová, Martina Bugáňová, Zdenko Pirník, Barbora Mikulášková, Andrea Popelová, Miroslava Blechová, Martin Haluzík, Blanka Železná, Marek Kuzma, Jaroslav Kuneš, Lenka Maletínská
Analogs of anorexigenic neuropeptides, such as prolactin-releasing peptide (PrRP), have a potential as new anti-obesity drugs. In our previous study, palmitic acid attached to the N-terminus of PrRP enabled its central anorexigenic effects after peripheral administration. In this study, two linkers, γ-glutamic acid at Lys11 and a short, modified polyethylene glycol at the N-terminal Ser and/or Lys11, were applied for the palmitoylation of PrRP31 to improve its bioavailability. These analogs had a high affinity and activation ability to the PrRP receptor GPR10 and the neuropeptide FF2 receptor, as well as short-term anorexigenic effect similar to PrRP palmitoylated at the N-terminus...
2017: PloS One
https://www.readbyqxmd.com/read/28811612/coenzyme-q10-improves-lipid-metabolism-and-ameliorates-obesity-by-regulating-camkii-mediated-pde4-inhibition
#15
Zhe Xu, Jia Huo, Xin Ding, Mu Yang, Lin Li, Jian Dai, Kazunori Hosoe, Hiroshi Kubo, Masayuki Mori, Keiichi Higuchi, Jinko Sawashita
Our recent studies revealed that supplementation with the reduced form of coenzyme Q10 (CoQ10H2) inhibits oxidative stress and slows the process of aging in senescence-accelerated mice. CoQ10H2 inhibits adipocyte differentiation and regulates lipid metabolism. In the present study, we show that dietary supplementation with CoQ10H2 significantly reduced white adipose tissue content and improved the function of brown adipose tissue by regulating expression of lipid metabolism-related factors in KKAy mice, a model of obesity and type 2 diabetes...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809727/models-of-non-alcoholic-fatty-liver-disease-and-potential-translational-value-the-effects-of-3-5-l-diiodothyronine
#16
Elena Grasselli, Laura Canesi, Piero Portincasa, Adriana Voci, Laura Vergani, Ilaria Demori
Non-alcoholic fatty liver disease (NAFLD) is the most common liver disorder in industrialized countries and is associated with increased risk of cardiovascular, hepatic and metabolic diseases. Molecular mechanisms on the root of the disrupted lipid homeostasis in NAFLD and potential therapeutic strategies can benefit of in vivo and in vitro experimental models of fatty liver. Here, we describe the high fat diet (HFD)-fed rat in vivo model, and two in vitro models, the primary cultured rat fatty hepatocytes or the FaO rat hepatoma fatty cells, mimicking human NAFLD...
September 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28808839/individuals-with-autism-have-higher-8-iso-pgf2%C3%AE-levels-than-controls-but-no-correlation-with-quantitative-assay-of-paraoxonase-1-serum-levels
#17
Bianca Pop, Alexandru-Ștefan Niculae, Tudor Lucian Pop, Andreea Liana Răchișan
Autism spectrum disorder (ASD) represents a very large set of neurodevelopmental issues with diverse clinical outcomes. Various hypotheses have been put forth for the etiology of autism spectrum disorder, including issues pertaining to oxidative stress. In this study, we conducted measurements of serum 8-Iso-Prostaglanding F2 α (8-iso-PGF2α, which is the results of non-enzimatically mediated polyunsaturated fatty acid oxidation) in a population of individuals with autism and a control group of age and sex matched controls...
August 14, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28801073/newborn-screening-for-carnitine-palmitoyltransferase-ii-deficiency-using-c16-c18-1-c2-evaluation-of-additional-indices-for-adequate-sensitivity-and-lower-false-positivity
#18
Go Tajima, Keiichi Hara, Miyuki Tsumura, Reiko Kagawa, Satoshi Okada, Nobuo Sakura, Shinsuke Maruyama, Atsuko Noguchi, Tomonari Awaya, Mika Ishige, Nobuyuki Ishige, Ikuma Musha, Sayaka Ajihara, Akira Ohtake, Etsuo Naito, Yusuke Hamada, Tomotaka Kono, Tomoko Asada, Hideo Sasai, Toshiyuki Fukao, Ryoji Fujiki, Osamu Ohara, Ryosuke Bo, Kenji Yamada, Hironori Kobayashi, Yuki Hasegawa, Seiji Yamaguchi, Masaki Takayanagi, Ikue Hata, Yosuke Shigematsu, Masao Kobayashi
BACKGROUND: Carnitine palmitoyltransferase (CPT) II deficiency is one of the most common forms of mitochondrial fatty acid oxidation disorder (FAOD). However, newborn screening (NBS) for this potentially fatal disease has not been established partly because reliable indices are not available. METHODS: We diagnosed CPT II deficiency in a 7-month-old boy presenting with hypoglycemic encephalopathy, which apparently had been missed in the NBS using C16 and C18:1 concentrations as indices...
July 31, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28792522/biochemical-characterization-and-anti-inflammatory-properties-of-an-isothiocyanate-enriched-moringa-moringa-oleifera-seed-extract
#19
Asha Jaja-Chimedza, Brittany L Graf, Charlotte Simmler, Youjin Kim, Peter Kuhn, Guido F Pauli, Ilya Raskin
Moringa oleifera Lam. is a tropical plant, used for centuries as food and traditional medicine. The aim of this study was to develop, validate and biochemically characterize an isothiocyanate-enriched moringa seed extract (MSE), and to compare the anti-inflammatory effects of MSE-containing moringa isothiocyanate-1 (MIC-1) with a curcuminoid-enriched turmeric extract (CTE), and a material further enriched in its primary phytochemical, curcumin (curcumin-enriched material; CEM). MSE was prepared by incubating ground moringa seeds with water to allow myrosinase-catalyzed enzymatic formation of bioactive MIC-1, the predominant isothiocyanate in moringa seeds...
2017: PloS One
https://www.readbyqxmd.com/read/28790228/association-between-serum-uric-acid-and-non-alcoholic-fatty-liver-disease-a-meta-analysis
#20
Guntur Darmawan, Laniyati Hamijoyo, Irsan Hasan
BACKGROUND: non-alcoholic fatty liver disease (NAFLD) is known to be associated with some metabolic disorders. Recent studies suggested the role of uric acid in NAFLD through oxidative stress and inflammatory process. This study is aimed to evaluate the association between serum uric acid and NAFLD. METHODS: a systematic literature review was conducted using Pubmed and Cochrane library. The quality of all studies was assessed using the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE)...
April 2017: Acta Medica Indonesiana
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