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https://www.readbyqxmd.com/read/28214879/thiamine-deprivation-produces-a-liver-atp-deficit-and-metabolic-and-genomic-effects-in-mice-findings-are-parallel-to-those-of-biotin-deficiency-and-have-implications-for-energy-disorders
#1
Alain de J Hernandez-Vazquez, Josue Andres Garcia-Sanchez, Elizabeth Moreno-Arriola, Ana Salvador-Adriano, Daniel Ortega-Cuellar, Antonio Velazquez-Arellano
Thiamine is one of several essential cofactors for ATP generation. Its deficiency, like in beriberi and in the Wernicke-Korsakoff syndrome, has been studied for many decades. However, its mechanism of action is still not completely understood at the cellular and molecular levels. Since it acts as a coenzyme for dehydrogenases of pyruvate, branched-chain keto acids, and ketoglutarate, its nutritional privation is partly a phenocopy of inborn errors of metabolism, among them maple syrup urine disease. In the present paper, we report metabolic and genomic findings in mice deprived of thiamine...
February 18, 2017: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/28214855/fatty-acid-binding-protein-4-in-endometrial-epithelium-is-involved-in-embryonic-implantation
#2
Peng Wang, Qiuyuan Zhu, Huilian Peng, Mengkai Du, Minyue Dong, Hanzhi Wang
AIMS: To clarify the role of fatty acid-binding protein 4 (FABP4) of endometrial epithelial cell in the establishment and maintenance of pregnancy and the involvement in the pathogenesis of pregnancy loss. METHODS: The expression of FABP4 and uterine receptive factor (LIF, Integrin-β3 and Claudin 4) was determined by Western blotting or quantitative PCR. FABP4 siRNA was used to silence FABP4 while FABP4 inhibitor was used to inhibit the function of FABP4 in endometrial epithelial cell...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214849/lipopeptide-induced-suicidal-erythrocyte-death-correlates-with-the-degree-of-acylation
#3
Abdulla Al Mamun Bhuyan, Minh-Thu Nguyen, Rosi Bissinger, Friedrich Götz, Florian Lang
BACKGROUND/AIMS: Consequences of bacterial infection include anemia, which could result from stimulation of suicidal erythrocyte death or eryptosis, characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Bacterial components known to stimulate eryptosis include lipopeptides. Signaling mediating the triggering of eryptosis include increased cytosolic Ca2+ activity ([Ca2+]<Sub>i</Sub>), oxidative stress and cellular accumulation of ceramide...
January 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214830/hyper-elongation-in-colorectal-cancer-tissue-cerotic-acid-is-a-potential-novel-serum-metabolic-marker-of-colorectal-malignancies
#4
Adriana Mika, Jaroslaw Kobiela, Aleksandra Czumaj, Michał Chmielewski, Piotr Stepnowski, Tomasz Sledzinski
BACKGROUNDS/AIMS: Colorectal cancer (CRC) cells show some alterations of lipid metabolism. Elongation of fatty acids (FA) has not been studied in CRC tissues thus far. The aim of this study was to verify if CRC specimens and normal colon mucosa differ in terms of their levels of very long-chain FAs, a product of FA elongation. Moreover, the expression of elongase genes has been studied in normal tissue and CRC. Finally, we searched for some specific products of FA elongation in serum of CRC patients...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214702/triploid-atlantic-salmon-shows-similar-performance-fatty-acid-composition-and-proteome-response-to-diploids-during-early-freshwater-rearing
#5
Waldo G Nuez-Ortín, Chris G Carter, Richard Wilson, Ira R Cooke, Gianluca Amoroso, Jennifer M Cobcroft, Peter D Nichols
There is currently renewed interest in farming triploid Atlantic salmon. Improving farming requires identifying triploid specific phenotypic and physiological traits that are uniquely derived from ploidy per se and developed under optimal growing conditions. This study investigated firstly, the impact of ploidy on growth performance and whole body composition of Atlantic salmon at different early freshwater stages [34dph (days post-hatching) alevin, 109dph fry, and 162dph parr] and secondly, whether phenotypic differences at these stages were reflected in protein samples collected from whole fish, white muscle or liver tissue...
February 11, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28214701/leachate-flush-strategies-for-managing-volatile-fatty-acids-accumulation-in-leach-bed-reactors
#6
S Riggio, M Torrijos, G Vives, G Esposito, E D van Hullebusch, J P Steyer, R Escudié
In anaerobic leach-bed reactors (LBRs) co-digesting an easily- and a slowly-degradable substrate, the importance of the leachate flush both on extracting volatile fatty acids (VFAs) at the beginning of newly-started batches and on their consumption in mature reactors was tested. Regarding VFA extraction three leachate flush-rate conditions were studied: 0.5, 1 and 2Lkg(-1)TSd(-1). Results showed that increasing the leachate flush-rate during the acidification phase is essential to increase degradation kinetics...
January 30, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214694/effect-of-different-irradiation-dose-treatment-on-the-lipid-oxidation-instrumental-color-and-volatiles-of-fresh-pork-and-their-changes-during-storage
#7
Chengliang Li, Lichao He, Guofeng Jin, Sumin Ma, Wenmin Wu, Lan Gai
This study mainly investigated the effect of different doses irradiation (0, 3, 5 or 7kGy) on the quality changes of pork during 4°C storage by determining the irradiation off-odor intensity, thiobarbituric acid reactive substances (TBARs), fatty acid composition, volatiles and color of the samples during whole storage. The results showed that ≥7kGy irradiation could make the samples produce obvious irradiation off-odor. However, after 7days storage irradiation off-odor was reduced. Lipid oxidation was also promoted by irradiation...
February 14, 2017: Meat Science
https://www.readbyqxmd.com/read/28214693/genomic-prediction-for-beef-fatty-acid-profile-in-nellore-cattle
#8
Hermenegildo Lucas Justino Chiaia, Elisa Peripoli, Rafael Medeiros de Oliveira Silva, Carolyn Aboujaoude, Fabiele Loise Braga Feitosa, Marcos Vinicius Antunes de Lemos, Mariana Piatto Berton, Bianca Ferreira Olivieri, Rafael Espigolan, Rafael Lara Tonussi, Daniel Gustavo Mansan Gordo, Tiago Bresolin, Ana Fabrícia Braga Magalhães, Gerardo Alves Fernandes Júnior, Lúcia Galvão de Albuquerque, Henrique Nunes de Oliveira, Joyce de Jesus Mangini Furlan, Adrielle Mathias Ferrinho, Lenise Freitas Mueller, Humberto Tonhati, Angélica Simone Cravo Pereira, Fernando Baldi
The objective of this study was to compare SNP-BLUP, BayesCπ, BayesC and Bayesian Lasso methodologies to predict the direct genomic value for saturated, monounsaturated, and polyunsaturated fatty acid profile, omega 3 and 6 in the Longissimus thoracis muscle of Nellore cattle finished in feedlot. A total of 963 Nellore bulls with phenotype for fatty acid profiles, were genotyped using the Illumina BovineHD BeadChip (Illumina, San Diego, CA) with 777,962 SNP. The predictive ability was evaluated using cross validation...
February 9, 2017: Meat Science
https://www.readbyqxmd.com/read/28214555/identification-of-a-fatty-acid-binding-protein4-ucp2-axis-regulating-microglial-mediated-neuroinflammation
#9
Cayla M Duffy, Hongliang Xu, Joshua P Nixon, David A Bernlohr, Tammy A Butterick
Hypothalamic inflammation contributes to metabolic dysregulation and the onset of obesity. Dietary saturated fats activate microglia via a nuclear factor-kappa B (NFκB) mediated pathway to release pro-inflammatory cytokines resulting in dysfunction or death of surrounding neurons. Fatty acid binding proteins (FABPs) are lipid chaperones regulating metabolic and inflammatory pathways in response to fatty acids. Loss of FABP4 in peripheral macrophages via either molecular or pharmacologic mechanisms results in reduced obesity-induced inflammation via a UCP2-redox based mechanism...
February 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28214446/development-of-algae-bacteria-granular-consortia-in-photo-sequencing-batch-reactor
#10
Lin Liu, Hongyong Fan, Yuhong Liu, Chaoxiang Liu, Xu Huang
The development and properties of algae-bacteria granular consortia, which cultivated with the algae (Chlorella and Scenedesmus) and aerobic granules, was investigated in this experiment. The results indicated that the granular consortia could be successfully developed by selection pressure control, and the algal biomass and extracellular polymeric substances (EPS) concentration in the consortia showed notable correlation with the operating parameters of reactor. The maximum specific removal rates of total nitrogen and phosphate were obtained from the granular consortia with the highest algal biomass, yet the correlation between the fatty acid methyl esters yield and the algal biomass in the consortia was not markedly observed...
February 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214444/the-boosted-biomass-and-lipid-accumulation-in-chlorella-vulgaris-by-supplementation-of-synthetic-phytohormone-analogs
#11
Tingting Liu, Fei Liu, Chao Wang, Zhenyao Wang, Yuqin Li
This study attempted at maximizing biomass and lipid accumulation in Chlorella vulgaris by supplementation of natural abscisic acid (ABA) or synthetic 2,4-dichlorophenoxyacetic acid (2,4-D) and 1-naphthaleneacetic acid (NAA) hormone analogs. Amongst three tested additives, NAA-treatment performed remarkable promoting effect on cell growth and lipid biosynthesis. The favorable lipid productivity (418.6mg/L/d) of NAA-treated cells showed 1.48 and 2.24 times more than that of 2,4-D and ABA. NAA-treatment also positively modified the proportions of saturated (C16:0 and C18:0) and monounsaturated fatty acids (C18:1) which were prone to high-quality biofuels-making...
February 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214356/comparative-analysis-of-the-transcriptional-responses-to-low-and-high-temperature-in-three-rice-planthopper-species
#12
Hai-Jian Huang, Jian Xue, Ji-Chong Zhuo, Ruo-Lin Cheng, Hai-Jun Xu, Chuan-Xi Zhang
The brown planthopper (Nilaparvata lugens, BPH), white-backed planthopper (Sogatella furcifera, WBPH), and small brown planthopper (Laodelphax striatellus, SBPH) are important rice pests in Asia. These three species differ in thermal tolerance and exhibit quite different migration and overwintering strategies. To understand the underlying mechanisms, we sequenced and compared the transcriptome of the three species under different temperature treatments. We found that metabolism-, exoskeleton-, and chemosensory-related genes were modulated...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28214354/long-chain-unsaturated-fatty-acids-as-possible-important-metabolites-for-primary-angle-closure-glaucoma-based-on-targeted-metabolomic-analysis
#13
Shengzhong Rong, Yang Li, Yue Guan, Lili Zhu, Qiang Zhou, Mucong Gao, Hongzhi Pan, Lina Zou, Dong Chang
Primary angle-closure glaucoma (PACG) is a severe chronic neurodegenerative disease in Asia. Identification of important metabolites associated with PACG is crucial for early intervention and advancing knowledge of the disease mechanism. We applied gas chromatography-mass spectrometry (GC-MS) for targeted metabolomic analysis on serum samples from thirty-eight newly diagnosed PACG patients and forty-eight controls. Palmitoleic acid (PA), linoleic acid (LA), gamma-linolenic acid (GLA) and arachidonic acid (ARA) were identified as important metabolites associated with PACG...
February 18, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28214337/palmitate-induces-mitochondrial-superoxide-generation-and-activates-ampk-in-podocytes
#14
Eugene Lee, Jin Choi, Hyun Soon Lee
Studies have shown that high levels of serum free fatty acids (FFAs) are associated with lipotoxicity and type 2 diabetes. Palmitic acid (PA) is the predominant circulating saturated FFA, yet its role in the pathogenesis of diabetic nephropathy (DN) is not clear. Recently, one study suggested that mitochondrial superoxide production is related to AMP-activated protein kinase (AMPK) activity in diabetic mice kidneys. To elucidate the link between PA and oxidative stress and AMPK activity in DN, we compared the cultured murine podocytes exposed to PA and oleic acid (OA)...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28214020/serum-uric-acid-concentrations-and-fructose-consumption-are-independently-associated-with-nash-in-children-and-adolescents
#15
Antonella Mosca, Valerio Nobili, Rita De Vito, Annalisa Crudele, Eleonora Scorletti, Alberto Villani, Anna Alisi, Christopher D Byrne
BACKGROUND & AIMS: Recent research has suggested that dietary fructose intake may increase serum uric acid (UA) concentrations. Both UA concentration and fructose consumption maybe also increase in NAFLD. It is not known whether dietary fructose consumption and UA concentration are independently associated with non-alcoholic steatohepatitis (NASH). Our aim was to investigate the factors associated with NASH in children and adolescents with proven NAFLD, and to test whether UA concentrations and fructose consumption are independently associated with NASH...
February 6, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28213716/density-functional-theory-study-of-the-mechanism-for-the-formation-of-glycidyl-esters-from-triglyceride
#16
Quanyu Wang, Zhuan Ji, Bo Han
Glycidyl fatty acid esters (GEs) are by-products of edible oil refinement that have attracted attention globally due to concerns over their possible harmful effects on human health when consumed. It is thus important to improve our understanding of GE formation if we are to suppress GE production during edible oil refinement. In this paper, a first-principles density functional theory study of the formation mechanism of GEs was performed. Triglycerides undergo a self-condensation reaction between two adjacent ester groups to yield GEs and an anhydride as a by-product...
March 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28213570/blunted-transcriptional-response-to-skeletal-muscle-ischemia-in-rats-with-chronic-kidney-disease-potential-role-for-impaired-ischemia-induced-angiogenesis
#17
Rafael U Heiss, Fabian Fahlbusch, Johannes Jacobi, Christoph Daniel, Arif B Ekici, Nada Cordasic, Kerstin Amann, Andrea Hartner, Karl F Hilgers
Chronic kidney disease (CKD) is associated with increased cardiovascular morbidity and mortality. Previous studies indicated an impairment of ischemia-induced angiogenesis in skeletal muscle of rats with CKD. We performed a systematic comparison of early gene expression in response to ischemia in rats with or without CKD to identify potential molecular mechanisms underlying impaired angiogenesis in CKD. CKD was induced in male rats by 5/6 nephrectomy (SNX); control rats were sham operated (sham). Eight weeks later, ischemia of the right limb was induced by ligation and resection of the femoral artery...
February 17, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28213537/ketoacylsynthase-domains-of-a-pufa-synthase-in-thraustochytrium-can-effectively-function-as-stand-alone-enzymes-in-escherichia-coli
#18
Xi Xie, Dauenpen Meesapyodsuk, Xiao Qiu
Thraustochytrium sp. 26185 accumulates a high level of docosahexaenoic acid (DHA), a nutritionally important ω-3 very long chain unsaturated fatty acid (VLCPUFA) synthesized primarily by polyunsaturated fatty acid (PUFA) synthase, a Type I polyketide synthase-like mega-enzyme. The PUFA synthase in this species comprises three large subunits each with multiple catalytic domains. It was hypothesized that among these domains, ketoacylsynthase (KS) domains might be critical for catalyzing the condensation of specific unsaturated acyl-ACPs with malonyl-ACP, whereby retaining double bonds in an extended acyl chain...
February 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28213231/stable-isotope-labeling-assisted-liquid-chromatography-tandem-mass-spectrometry-for-the-analysis-of-perfluorinated-carboxylic-acids-in-serum-samples
#19
Shijuan Zhang, Zhongyin Ji, Zhiwei Sun, Mingshuang Li, Cuncun Sheng, Mingbo Yue, Yanxin Yu, Guang Chen, Jinmao You
A new stable isotope labeling (SIL) reagent pair, 10-methyl-acridone-2-sulfonohydrazide (MASH) and its deuterated counterpart d3-MASH was synthesized and successfully applied to the analysis of perfluorinated carboxylic acids (PFCAs) in serum samples. The limits of detection (LODs) were in the range of 0.07-0.42μg/L, and the limits of quantitation (LOQs) were in the range of 0.25-1.38μg/L. Besides ionization enhancing effect, MASH also showed excellent fluorescence property. Therefore, the mass spectrometer operation cost was greatly lowered by carrying out parameter optimization experiments on HPLC which is easier to operate and maintain...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28213094/aspirin-triggered-resolvin-d1-modified-materials-promote-the-accumulation-of-pro-regenerative-immune-cell-subsets-and-enhance-vascular-remodeling
#20
Mary Caitlin P Sok, Maxianne C Tria, Claire E Olingy, Cheryl L San Emeterio, Edward A Botchwey
: Many goals in tissue engineering rely on modulating cellular localization and polarization of cell signaling, including the inhibition of inflammatory infiltrate, facilitation of inflammatory cell egress, and clearance of apoptotic cells. Omega-3 polyunsaturated fatty acid-derived resolvins are gaining increasing recognition for their essential roles in inhibition of neutrophil invasion into inflamed tissue and promotion of macrophage phagocytosis of cellular debris as well as their egress to the lymphatics...
February 14, 2017: Acta Biomaterialia
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