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https://www.readbyqxmd.com/read/29778448/multi-charged-labeling-of-oligosaccharides-and-n-linked-glycans-by-hexahistidine-based-tags-for-capillary-electrophoresis-mass-spectrometry-analysis
#1
Jan Partyka, Jana Krenkova, Richard Cmelik, Frantisek Foret
The labeling by amino acids and peptides was investigated for sensitive and fast analyses of oligosaccharides and N-linked glycans by capillary electrophoresis-mass spectrometry (CE-MS). Peptide tags with a various number of histidine residues were tested for maltooligosaccharide labeling in order to investigate the effect of the size of labels and a number of charges on CE-MS analysis. Nevertheless, the reductive amination labeling of N-linked glycans by a hexahistidine tag resulted in a multiple products formation, therefore a peptide tag was modified by hydrazine functionality in order to perform labeling by hydrazone formation chemistry...
May 16, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29763604/attenuation-of-macrophage-accumulation-and-polarisation-in-obese-diabetic-mice-by-a-small-molecule-significantly-improved-insulin-sensitivity
#2
Sandip Mukherjee, Snehasis Das, Dipanjan Chattopadhyay, Shuvasree Sarkar, Subhendu Kumar Chatterjee, Dhrubajyoti Talukdar, Sutapa Mukherjee, Subeer S Majumder, Satinath Mukhopadhyay, Mihir K Chaudhuri, Samir Bhattacharya
Accumulation and polarization of anti-inflammatory M2 to proinflammatory M1 macrophage in the adipose tissue of obese diabetic mice is an important pathogenic signature. It worsens lipid induced inflammation and insulin resistance. Here we demonstrate that a small molecule, a peroxyvanadate compound i.e. DmpzH [VO(O2 )2 (dmpz)] or dmp, could robustly decrease macrophage infiltration, accumulation and their polarization in high fat diet (HFD) induced obese diabetic mice. In searching the underlying mechanism it was revealed that SIRT1 level was strikingly low in the inflamed adipose tissue of HFD mice as compared to mice fed with standard diet (SD)...
May 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29734035/magnetic-multiwalled-carbon-nanotubes-as-nanocarrier-tags-for-sensitive-determination-of-fetuin-in-saliva
#3
Esther Sánchez-Tirado, Araceli González-Cortés, Paloma Yáñez-Sedeño, José M Pingarrón
This paper reports the development and performance of an electrochemical immunosensor using magnetic multiwalled carbon nanotubes (m-MWCNTs) as nanocarrier tags for the determination of human fetuin A (HFA), a relevant biomarker of obesity, insulin resistance, and type-2 diabetes as well as for pancreatic and liver cancers and inflammatory processes. Screen-printed carbon electrodes were grafted with p-aminobezoic acid and streptavidin was covalently immobilized on the electrode surface. A biotinylated capture antibody was immobilized through streptavidin-biotin interaction and a sandwich assay configuration was implemented using m-MWCNTs conjugated with HRP and anti-HFA antibodies as the detection label...
April 30, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29733933/purification-and-characterization-of-a-mitogenic-lectin-from-penicillium-duclauxii
#4
Ram Sarup Singh, Amandeep Kaur Walia, John F Kennedy
Lectins are proteins/glycoproteins of non-immune origin which interact specifically and non-covalently with carbohydrate moieties on the cell surface. In this study, a lectin was purified from Penicillium duclauxii by ion-exchange chromatography on DEAE-Sepharose and gel filtration chromatography on a Sephadex G-100 column. An overall recovery of 94.11% and 60-fold purification was achieved. The purified lectin had a molecular weight of 54.9 kDa and was found to be heterogeneous as revealed by double band of sub-units with molecular mass of 21...
May 4, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29722110/biochemical-comparison-of-8-hour-haemodialysis-and-4-hour-haemodiafiltration-and-two-dialysis-membranes-in-a-randomised-cross-over-trial
#5
Shi Z Choo, Kevan R Polkinghorne, Peter G Kerr
AIM: Extended-hours haemodialysis has long been regarded as the optimal form of dialysis for solute clearance. With emerging benefits of haemodiafiltration, we wanted to compare these two head-to-head. METHODS: In this randomised cross-over trial, we recruited existing nocturnal haemodialysis patients, who had not been hospitalised in the prior three months. After a baseline 8-hour haemodialysis session, subjects were randomised to either 2 weeks of 8-hour haemodialysis or 4-hour haemodiafiltration with cross-over to the alternative treatment after a 2-week washout period...
May 2, 2018: Nephrology
https://www.readbyqxmd.com/read/29696296/a-heterogeneous-response-of-liver-and-skeletal-muscle-fat-to-the-combination-of-a-paleolithic-diet-and-exercise-in-obese-individuals-with-type-2-diabetes-a-randomised-controlled-trial
#6
Julia Otten, Andreas Stomby, Maria Waling, Andreas Isaksson, Ingegerd Söderström, Mats Ryberg, Michael Svensson, Jón Hauksson, Tommy Olsson
AIMS/HYPOTHESIS: The aim of the study was to investigate ectopic fat deposition and insulin sensitivity, in a parallel single-blinded randomised controlled trial, comparing Paleolithic diet alone with the combination of Paleolithic diet and exercise in individuals with type 2 diabetes. METHODS: Thirty-two individuals with type 2 diabetes with BMI 25-40 kg/m2 and 30-70 years of age followed a Paleolithic diet ad libitum for 12 weeks. In addition, study participants were randomised by computer program to either supervised combined exercise training (PD-EX group) or standard care exercise recommendations (PD group)...
April 26, 2018: Diabetologia
https://www.readbyqxmd.com/read/29684480/fetuin-b-links-vitamin-d-deficiency-and-pediatric-obesity-direct-negative-regulation-by-vitamin-d
#7
Gillian E Walker, Antonia Follenzi, Valentina Bruscaggin, Marcello Manfredi, Simonetta Bellone, Emilio Marengo, Luigi Maiuri, Flavia Prodam, Gianni Bona
Vitamin D (VD) deficiency (VDD) correlates to obesity, with VD a recognized mediator of metabolic diseases. From a previous proteomic study identifying adiponectin as a link between VDD and pediatric obesity, herein we analysed another protein (SSP2301) increased with VDD. A focused 2D-electrophoretic analysis identified 4 corresponding plasma proteins, with one predicted to be fetuin B (FETUB). FETUB was studied due to its emerging role in metabolic diseases and cytogenetic location (3q27.3) with adiponectin...
April 20, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29671945/the-rs4686434-variant-in-the-fetub-locus-is-associated-with-intrahepatic-triglyceride-content-in-obese-chinese-adults
#8
Zhibin Li, Mingzhu Lin, Changqin Liu, Zheng Chen, Dongmei Wang, Xiulin Shi, Shuyu Yang, Xuejun Li
BACKGROUND: We aimed to explore associations of genetic variants in FETUB locus with intrahepatic triglyceride (IHTG) content. METHODS: We genotyped 4 tagging single-nucleotide polymorphisms (SNPs) of FETUB locus as well as PNPLA3 rs738409 and TM6SF2 rs58542926 in 418 obese Chinese adults who were measured on serum Fetuin-B and IHTG content. RESULTS: Subjects carrying the minor allele G for FETUB rs4686434 showed decreased serum Fetuin-B (AG/GG v...
April 19, 2018: Journal of Diabetes
https://www.readbyqxmd.com/read/29664315/potential-correlation-between-circulating-fetuin-a-and-pentraxin-3-with-biochemical-parameters-of-calcification-in-hemodialysis-patients
#9
Javad Hashemi, Hamid-Reza Joshaghani, Arash Akaberi, Zahra Hesari, Reza Ghanbari, Mohsen Mohammadzadeh, Ali-Reza Golshan
BACKGROUND: The strong correlation between vascular calcification and cardiovascular risk, which is a major cause of mortality in hemodialysis (HD) patients, has been well established. Fetuin-A is an inhibitor of vascular calcification, and pentraxin 3 (PTX3) is produced at the site of inflammation, which is associated with cardiovascular disease (CVD). The main purpose of this study was evaluating the correlation between fetuin-A and PTX3 with some biochemical parameters effective upon vascular calcification in HD patients...
December 1, 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29652038/analysis-of-novel-cardiovascular-biomarkers-in-patients-with-peripheral-artery-disease-pad
#10
Peter Jirak, Moritz Mirna, Bernhard Wernly, Vera Paar, Marcus Thieme, Stefan Betge, Marcus Franz, Uta Hoppe, Alexander Lauten, Jürgen Kammler, Paul C Schulze, Michael Lichtenauer, Daniel Kretzschmar
BACKGROUND: Peripheral artery disease (PAD) is a common form of manifestation of atherosclerosis. PAD has a considerable impact on morbidity, hospitalisation rates and health- care costs. Biomarkers have been introduced in many cardiovascular disease entities over the last years. However, an analysis on the correlation of biomarker levels and PAD is still lacking. METHODS: A total of 106 patients were enrolled in this current study, 51 that were diagnosed with PAD and 55 with excluded coronary and peripheral artery disease as controls...
April 12, 2018: Minerva Medica
https://www.readbyqxmd.com/read/29619113/analysis-of-circulating-angiopoietin-like-protein-3-and-genetic-variants-in-lipid-metabolism-and-liver-health-the-diogenes-study
#11
Anne Lundby Hess, Jérôme Carayol, Trine Blædel, Jörg Hager, Alessandro Di Cara, Arne Astrup, Wim H M Saris, Lesli Hingstrup Larsen, Armand Valsesia
Background: Angiopoietin-like protein 3 (ANGPTL3), a liver-derived protein, plays an important role in the lipid and lipoprotein metabolism. Using data available from the DiOGenes study, we assessed the link with clinical improvements (weight, plasma lipid, and insulin levels) and changes in liver markers, alanine aminotransferase, aspartate aminotransferase (AST), adiponectin, fetuin A and B, and cytokeratin 18 (CK-18), upon low-calorie diet (LCD) intervention. We also examined the role of genetic variation in determining the level of circulating ANGPTL3 and the relation between the identified genetic markers and markers of hepatic steatosis...
2018: Genes & Nutrition
https://www.readbyqxmd.com/read/29609136/fetuin-b-links-nonalcoholic-fatty-liver-disease-to-type-2-diabetes-via-inducing-insulin-resistance-association-and-path-analyses
#12
Zhibin Li, Mingzhu Lin, Changqin Liu, Dongmei Wang, Xiulin Shi, Zheng Chen, Yongwen Liu, Shuyu Yang, Xuejun Li
OBJECTIVE: Laboratory models suggested that Fetuin-B impaired insulin action in myotubes and hepatocytes and caused glucose intolerance in mice. We aimed to explore the independent associations and pathways among serum Fetuin-B, nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes (T2D). METHODS: A cross-sectional study of 1318 obese adults who underwent serum Fetuin-B test and hepatic ultrasonography scanning was conducted in Xiamen, China. Multivariable logistic regression was used to calculate adjusted odds ratio (OR) and 95% confidence intervals (CI) of serum Fetuin-B level and NAFLD for T2D in different models with adjustment for potential confounders...
March 30, 2018: Cytokine
https://www.readbyqxmd.com/read/29607540/melatonin-improves-insulin-resistance-and-hepatic-steatosis-through-attenuation-of-alpha-2-hs-glycoprotein
#13
Jee-In Heo, Dae Wui Yoon, Ji Hee Yu, Nam Hoon Kim, Hye Jin Yoo, Ji A Seo, Sin Gon Kim, Kyung Mook Choi, Sei Hyun Baik, Dong Seop Choi, Nan Hee Kim
Melatonin plays an important role in regulating circadian rhythms. It also acts as a potent antioxidant and regulates glucose and lipid metabolism, although the exact action mechanism is not clear. The α2-HS-glycoprotein gene (AHSG) and its protein, fetuin-A (FETUA), are one of the hepatokines and are known to be associated with insulin resistance and type 2 diabetes. The aim of this study was to determine whether melatonin improves hepatic insulin resistance and hepatic steatosis in a FETUA-dependent manner...
April 1, 2018: Journal of Pineal Research
https://www.readbyqxmd.com/read/29603688/serum-level-of-fetuin-b-is-associated-with-osteoporosis-a-4-year-prospective-study-in-china
#14
Zhong-Hua Xu, Jin He, Xing Zhang, Hua Xie, Zhong-Hua Zhou, Ya-Wen Sun, Xiang Luo
PURPOSE: As a novel hepatokine, fetuin B involves in various functions of energy metabolism. Recent advance reveals a complex interaction between bone and liver via the secretion of hepatokines. The association between serum fetuin B and osteoporosis was evaluated in a 4-year hospital-based prospective study of 1,370 Chinese postmenopausal women. METHODS: Bone mineral densities (BMDs) were obtained on femoral neck and lumbar spines by dual energy X-ray absorptiometry...
March 27, 2018: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/29582352/correlation-analysis-of-monocyte-subsets-and-insulin-resistance-considering-fetuin-a-involvement-in-patients-with-type-2-diabetes
#15
Saori Maruo, Katsuhito Mori, Koka Motoyama, Miyuki Nakamura, Reina Kawarabayashi, Yoshinori Kakutani, Yuko Yamazaki, Tomoaki Morioka, Tetsuo Shoji, Masaaki Inaba, Masanori Emoto
BACKGROUND: Fetuin-A is a multifunctional circulating glycoprotein that can induce insulin resistance. Lately, adipose tissue has gained prominence as an effector site of fetuin-A. Although fetuin-A-induced proinflammatory polarization and migration of macrophages plays a crucial role, it remains obscure whether monocyte subsets in circulation could simulate characteristics of macrophages in adipose tissues. This study aims to investigate the correlation between monocyte subsets with fetuin-A and its relevant insulin resistance...
March 27, 2018: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/29562796/first-trimester-irisin-and-fetuin-a-concentration-in-predicting-macrosomia
#16
Monika Zbucka-Kretowska, Mariusz Kuzmicki, Beata Telejko, Joanna Goscik, Michal Ciborowski, Danuta Lipinska, Justyna Hryniewicka, Anna Citko, Slawomir Lawicki, Slawomir Wolczynski
OBJECTIVE: We investigated the diagnostic value of first-trimester adipokines and placental markers in predicting macrosomia. METHODS: Out of 328 women recruited during the prenatal diagnosis between 11th and 13th week of pregnancy and subjected to follow up until delivery, we selected 26 women who gave birth to macrosomic babies and 34 women who gave birth to normal weight neonates for the evaluation of first trimester serum levels of pregnancy associated plasma protein-A, free β-human chorionic gonadotropin, placental growth factor (PIGF), and selected adipokines...
March 21, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29544770/acclimation-to-cold-and-warm-temperatures-is-associated-with-differential-expression-of-male-carp-blood-proteins-involved-in-acute-phase-and-stress-responses-and-lipid-metabolism
#17
Mariola A Dietrich, Piotr Hliwa, Mikołaj Adamek, Dieter Steinhagen, Halina Karol, Andrzej Ciereszko
The environmental temperature affects plasma biochemical indicators, antioxidant status and hematological and immunological parameters in fish. So far, only single blood proteins have been identified in response to temperature changes. The aim of this study was to compare the proteome of carp blood plasma from males acclimated to warm (30 °C) and cold (10 °C) temperatures by two-dimensional differential gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry. A total of 47 spots were found to be differentially regulated by temperature (>1...
May 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29523632/circulating-fetuin-a-and-risk-of-type-2-diabetes-a-mendelian-randomization-analysis
#18
Janine Kröger, Karina Meidtner, Norbert Stefan, Marcela Guevara, Nicola D Kerrison, Eva Ardanaz, Dagfinn Aune, Heiner Boeing, Miren Dorronsoro, Courtney Dow, Guy Fagherazzi, Paul W Franks, Heinz Freisling, Marc J Gunter, José María Huerta, Rudolf Kaaks, Timothy J Key, Kay Tee Khaw, Vittorio Krogh, Tilman Kühn, Francesca Romana Mancini, Amalia Mattiello, Peter M Nilsson, Anja Olsen, Kim Overvad, Domenico Palli, J Ramón Quirós, Olov Rolandsson, Carlotta Sacerdote, Núria Sala, Elena Salamanca-Fernández, Ivonne Sluijs, Annemieke Mw Spijkerman, Anne Tjonneland, Konstantinos K Tsilidis, Rosario Tumino, Yvonne T van der Schouw, Nita G Forouhi, Stephen J Sharp, Claudia Langenberg, Elio Riboli, Matthias B Schulze, Nicholas J Wareham
Fetuin-A, a hepatic-origin protein, is strongly positively associated with risk of type 2 diabetes in human observational studies, but it is unknown whether this association is causal. We aimed to study the potential causal relation of circulating fetuin-A to risk of type 2 diabetes in a Mendelian Randomization study with SNPs located in the fetuin-A-encoding AHSG gene. We used data from eight European countries of the prospective EPIC-InterAct case-cohort study including 10,020 incident cases. Plasma fetuin-A concentration was measured in a subset of 965 subcohort participants and 654 cases...
March 9, 2018: Diabetes
https://www.readbyqxmd.com/read/29511793/calcifying-nanoparticles-induce-cytotoxicity-mediated-by-ros-jnk-signaling-pathways
#19
Jihua Wu, Zhiwei Tao, Yaoliang Deng, Quan Liu, Yunlong Liu, Xiaofeng Guan, Xiang Wang
Calcifying nanoparticles (CNPs) play an important role in kidney stone formation, but the mechanism(s) are unclear. CNPs were isolated and cultured from midstream urine of patients with kidney stones. CNP morphology and characteristics were examined by electron microscopy and electrophoresis analysis. Chemical composition was analyzed using energy-dispersive X-ray microanalysis and Western blotting. Human renal proximal convoluted tubule cell (HK-2) cultures were exposed to CNPs for 0, 12 and 72 h, and production of reactive oxygen species (ROS), mitochondrial membrane potential and apoptosis levels were evaluated...
March 6, 2018: Urolithiasis
https://www.readbyqxmd.com/read/29508692/cross-sectional-association-between-sugar-sweetened-beverage-intake-and-cardiometabolic-biomarkers-in-us-women
#20
Zhi Yu, Sylvia H Ley, Qi Sun, Frank B Hu, Vasanti S Malik
Few studies have evaluated the relationships between intake of sugar-sweetened beverages (SSB) and intermediate biomarkers of cardiometabolic risk. Associations between artificially sweetened beverages (ASB) and fruit juice with cardiometabolic biomarkers are also unclear. We investigated habitual SSB, ASB and fruit juice intake in relation to biomarkers of hepatic function, lipid metabolism, inflammation and glucose metabolism. We analysed cross-sectional data from 8492 participants in the Nurses' Health Study who were free of diabetes and CVD...
March 2018: British Journal of Nutrition
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