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https://www.readbyqxmd.com/read/27921108/a-novel-antioxidant-peptide-derived-from-wheat-germ-prevents-high-glucose-induced-oxidative-stress-in-vascular-smooth-muscle-cells-in-vitro
#1
Siyuan Chen, Dingbo Lin, Yulong Gao, Xiaozhou Cao, Xinchun Shen
The ingestion of whole wheat products is responsible for the prevention of a number of chronic diseases. The aim of this study is to characterize the molecular properties of a novel wheat germ-derived antioxidant peptide (AOP) in protection against high glucose-induced oxidative stress in vascular smooth muscle cells (VSMCs). AOP (amino acid sequence AREGETVVPG) was isolated from wheat germ albumin using dual-enzymatic hydrolysis/separation, followed by MS/MS. The in vitro IC50 value for Fe(2+) chelation was 0...
December 6, 2016: Food & Function
https://www.readbyqxmd.com/read/27897433/affinity-chromatography-matrices-for-depletion-and-purification-of-casein-glycomacropeptide-from-bovine-whey
#2
María F Baieli, Nicolás Urtasun, María J Martinez, Daniela B Hirsch, Ana M R Pilosof, María V Miranda, Osvaldo Cascone, Federico J Wolman
Casein glycomacropeptide (CMP) is a 64- amino acid peptide found in cheese whey, which is released after κ-casein specific cleavage by chymosin. CMP lacks aromatic amino acids, a characteristic that makes it usable as a nutritional supplement for people with phenylketonuria. CMP consists of two nonglycosylated isoforms (aCMP A and aCMP B) and its different glycosylated forms (gCMP A and gCMP B). The most predominant carbohydrate of gCMP is N-acetylneuraminic acid (sialic acid). Here, we developed a CMP purification process based on the affinity of sialic acid for wheat germ agglutinin (WGA)...
November 7, 2016: Biotechnology Progress
https://www.readbyqxmd.com/read/27896830/vagal-nerve-endings-in-visceral-pleura-and-triangular-ligaments-of-the-rat-lung
#3
Feng-Bin Wang, Yi-Han Liao, Yao-Chen Wang
The inner thoracic cavity is lined by the parietal pleura, and the lung lobes are covered by the visceral pleura. The parietal and visceral plurae form the pleural cavity that has negative pressure within to enable normal respiration. The lung tissues are bilaterally innervated by vagal and spinal nerves, including sensory and motor components. This complicated innervation pattern has made it difficult to discern the vagal vs. spinal processes in the pulmonary visceral pleura. With and without vagotomy, we identified vagal nerve fibres and endings distributed extensively in the visceral pleura ('P'-type nerve endings) and triangular ligaments ('L'-type nerve endings) by injecting wheat germ agglutinin-horseradish peroxidase as a tracer into the nucleus of solitary tract or nodose ganglion of male Sprague-Dawley rats...
November 29, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27865114/the-effect-of-selenium-and-uv-radiation-on-leaf-traits-and-biomass-production-in-triticum-aestivum-l
#4
Aleksandra Golob, Jan Kavčič, Vekoslava Stibilj, Alenka Gaberščik, Katarina Vogel-Mikuš, Mateja Germ
UV radiation as an evolutionarily important environmental factor, significantly affects plants traits and alters the effects of other environmental factors. Single and combined effects of ambient UV radiation, its exclusion, and Se foliar treatments on Si concentrations and production of Si phytoliths in wheat (Triticum aestivum L.) cv. 'Reska' were studied. The effects of these treatments on growth parameters of the plants, structural and biochemical traits of the leaves, and interactions of the leaves with light, as Si incrustation is the first barrier to light at the leaf surface were also examined...
February 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27861854/lectins-selectively-label-cartilage-condensations-and-the-otic-neuroepithelium-within-the-embryonic-chicken-head
#5
Poulomi Ray, Ami J Hughes, Misha Sharif, Susan C Chapman
Cartilage morphogenesis during endochondral ossification follows a progression of conserved developmental events. Cells are specified towards a prechondrogenic fate and subsequently undergo condensation followed by overt differentiation. Currently available molecular markers of prechondrogenic and condensing mesenchyme rely on common regulators of the chondrogenic program that are not specific to the tissue type or location. Therefore tissue-specific condensations cannot be distinguished based on known molecular markers...
November 16, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27845560/lactic-acid-bacteria-isolated-from-poultry-protect-the-intestinal-epithelial-cells-of-chickens-from-in-vitro-wheat-germ-agglutinin-induced-cytotoxicity
#6
J D Babot, E Argañaraz Martínez, M J Lorenzo-Pisarello, M C Apella, A Perez Chaia
1. Poultry fed on wheat-based diets regularly ingest wheat germ agglutinin (WGA) that has toxic effects in vitro on intestinal epithelial cells (IEC) obtained from 14-d-old broilers. Cytotoxicity and the potential role of 14 intestinal bacterial strains in the removal of bound lectins in epithelial cell cultures was investigated. 2. Cytotoxicity was dependent on time and lectin concentration; the lethal dose (LD50) was 8.36 µg/ml for IEC exposed for 2 h to WGA. 2. Complementary sugars to WGA were detected on the surface of one Enterococcus and 9 Lactobacillus strains isolated from poultry...
November 15, 2016: British Poultry Science
https://www.readbyqxmd.com/read/27825849/nuclear-receptor-retinoid-related-orphan-receptor-%C3%AE-deficiency-exacerbates-high-fat-diet-induced-cardiac-dysfunction-despite-improving-metabolic-abnormality
#7
Yi-Chao Zhao, Long-Wei Xu, Song Ding, Qing-Qi Ji, Nan Lin, Qing He, Ling-Chen Gao, Yuan-Yuan Su, Jun Pu, Ben He
Retinoid-related orphan receptor α (RORα), a member of the metabolic nuclear receptor superfamily, plays a vital regulatory role in circadian rhythm and metabolism. Here, we investigated the role of RORα in high-fat diet (HFD)-induced cardiac impairments and the underlying mechanisms involved. RORα-deficient stagger mice (sg/sg) and wild type (WT) littermates were fed with either standard diet or HFD. At 20weeks after HFD treatment, RORα deficiency resulted in significantly decreased body weight gain, improved dyslipidemia and ameliorated insulin resistance (evaluated by blood biochemical and glucose/insulin tolerance tests) compared with WT control...
November 5, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27822142/non-enzymatic-upregulation-of-tissue-factor-expression-by-gamma-glutamyl-transferase-in-human-peripheral-blood-mononuclear-cells
#8
Valentina Scalise, Cristina Balia, Silvana Cianchetti, Tommaso Neri, Vittoria Carnicelli, Riccardo Zucchi, Maria Franzini, Alessandro Corti, Aldo Paolicchi, Alessandro Celi, Roberto Pedrinelli
BACKGROUND: Besides maintaining intracellular glutathione stores, gamma-glutamyltransferase(GGT) generates reactive oxygen species and activates NFkB, a redox-sensitive transcription factor key in the induction of Tissue Factor (TF) gene expression, the principal initiator of the clotting cascade. Thus, GGT might be involved in TF-mediated coagulation processes, an assumption untested insofar. METHODS: Experiments were run with either equine, enzymatically active GGT or human recombinant (hr) GGT, a wheat germ-derived protein enzymatically inert because of missing post-translational glycosylation...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27790372/aflatoxin-b1-zearalenone-and-deoxynivalenol-in-feed-ingredients-and-complete-feed-from-different-province-in-china
#9
Li Wu, Jianjun Li, Yunhu Li, Tiejun Li, Qinghua He, Yulong Tang, Hongnan Liu, Yongteng Su, Yulong Yin, Peng Liao
BACKGROUND: The current study was carried out to provide a reference for monitory of aflatoxin B1 (AFB1), zearalenone (ZEN) and deoxynivalenol (DON) contamination in feed ingredients and complete feeds were collected from different Province in China from 2013 to 2015. METHODS: A total of 443 feed ingredients, including 220 corn, 24 wheat, 24 domestic distillers dried grains with soluble (DDGS), 55 bran, 20 wheat shorts and red dog, 37 imported DDGS, 34 corn germ meal and 29 soybean meal as well as 127 complete feeds including 25 pig complete feed (powder), 90 pig complete feed (pellet), six duck complete feed and six cattle complete feed were randomly collected from different Province in China, respectively, by high-performance chromatography in combined with UV or fluorescence analysis...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27777035/the-phospholipase-c-fgplc1-is-involved-in-regulation-of-development-pathogenicity-and-stress-responses-in-fusarium-graminearum
#10
Qili Zhu, Ling Sun, Jiajie Lian, Xuli Gao, Lei Zhao, Mingyu Ding, Jing Li, Yuancun Liang
Phospholipase C (PLC) is an important phospholipid hydrolase that plays critical roles in various biological processes in eukaryotic cells. To elucidate the functions of PLC in morphogenesis and pathogenesis in Fusarium graminearum, deletion mutants were constructed of all six FgPLC genes identified in this study. Deletion of FgPLC1, but not the other five FgPLC genes, affected hyphal growth and conidiation. The FgPLC1 deletion mutant (Δplc1) also was defective in conidium germination and germ tube growth...
December 2016: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/27773703/n-glycoform-dependent-interactions-of-megalin-with-its-ligands
#11
Makoto Hirano, Kiichiro Totani, Tomohiko Fukuda, Jianguo Gu, Akemi Suzuki
BACKGROUND: Megalin is a 600-kDa single-spanning transmembrane glycoprotein and functions as an endocytic receptor, distributed not only in the kidney but also in other tissues. Structurally and functionally distinct ligands for megalin have been identified. Megalin has 30 potential N-glycosylation sites in its extracellular domain. We found that megalin interacts with its ligands in a glycoform-dependent manner. METHODS: Distribution of megalin and glycans was histochemically analyzed in mouse kidneys...
January 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27768827/cell-size-assays-for-mass-cytometry
#12
Alan D Stern, Adeeb H Rahman, Marc R Birtwistle
Mass cytometry offers the advantage of allowing the simultaneous measurement of a greater number parameters than conventional flow cytometry. However, to date, mass cytometry has lacked a reliable alternative to the light scatter properties that are commonly used as a cell size metric in flow cytometry (forward scatter intensity-FSC). Here, we report the development of two plasma membrane staining assays to evaluate mammalian cell size in mass cytometry experiments. One is based on wheat germ agglutinin (WGA) staining and the other on Osmium tetroxide (OsO4 ) staining, both of which have preferential affinity for cell membranes...
October 21, 2016: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/27759476/tumor-associated-glycans-and-tregs-in-immunogenicity-of-an-autologous-cell-based-vaccine
#13
Behjatolah Monzavi-Karbassi, Fariba Jousheghany, Thomas Kieber-Emmons
Development of cancer vaccines targeting tumor-associated antigens (TAAs) is an alternative approach to chemotherapy with sustained anti-tumor effects. The success of active immunotherapy has been hampered by tumor-induced immune suppressors. Regulatory T cells (Tregs) are a population of immune suppressors with a proven role in regulating anti-tumor immune responses. Removing or subduing Tregs activity leads to more robust anti-tumor immune responses. Here, we used a cell-based vaccination strategy in the 4T1 murine mammary model to examine whether bulk removal of certain TAAs, using their glycan profile, can affect the immunogenicity of the vaccine...
October 19, 2016: Immunological Investigations
https://www.readbyqxmd.com/read/27759119/enzymatic-diversity-of-the-clostridium-thermocellum-cellulosome-is-crucial-for-the-degradation-of-crystalline-cellulose-and-plant-biomass
#14
Katsuaki Hirano, Masahiro Kurosaki, Satoshi Nihei, Hiroki Hasegawa, Suguru Shinoda, Mitsuru Haruki, Nobutaka Hirano
The cellulosome is a supramolecular multienzyme complex comprised of a wide variety of polysaccharide-degrading enzymes and scaffold proteins. The cellulosomal enzymes that bind to the scaffold proteins synergistically degrade crystalline cellulose. Here, we report in vitro reconstitution of the Clostridium thermocellum cellulosome from 40 cellulosomal components and the full-length scaffoldin protein that binds to nine enzyme molecules. These components were each synthesized using a wheat germ cell-free protein synthesis system and purified...
October 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27744002/immunolocalization-of-cuticular-proteins-in-johnston-s-organ-and-the-corneal-lens-of-anopheles-gambiae
#15
Laura Vannini, Judith H Willis
Previous work with EM immunolocalization examined the intracuticular placement of several antibodies directed against cuticular proteins (CPs) in various structures of Anopheles gambiae. Those structures had long stretches of fairly uniform cuticle. We have now used 19 antibodies directed against members of five CP families on two adult structures with considerable complexity, Johnston's organ and the corneal lens of the compound eye. We also localized chitin with colloidal-gold labeled wheat germ agglutinin...
November 2016: Arthropod Structure & Development
https://www.readbyqxmd.com/read/27722378/high-content-analysis-of-factors-affecting-gold-nanoparticle-uptake-by-neuronal-and-microglial-cells-in-culture
#16
A Stojiljković, K Kuehni-Boghenbor, V Gaschen, G Schüpbach, M Mevissen, C Kinnear, A-M Möller, M H Stoffel
Owing to their ubiquitous distribution, expected beneficial effects and suspected adverse effects, nanoparticles are viewed as a double-edged sword, necessitating a better understanding of their interactions with tissues and organisms. Thus, the goals of the present study were to develop and present a method to generate quantitative data on nanoparticle entry into cells in culture and to exemplarily demonstrate the usefulness of this approach by analyzing the impact of size, charge and various proteinaceous coatings on particle internalization...
September 22, 2016: Nanoscale
https://www.readbyqxmd.com/read/27716829/analysis-of-microstructure-of-the-cardiac-conduction-system-based-on-three-dimensional-confocal-microscopy
#17
Daniel Romero, Oscar Camara, Frank Sachse, Rafael Sebastian
The specialised conducting tissues present in the ventricles are responsible for the fast distribution of the electrical impulse from the atrio-ventricular node to regions in the subendocardial myocardium. Characterisation of anatomical features of the specialised conducting tissues in the ventricles is highly challenging, in particular its most distal section, which is connected to the working myocardium via Purkinje-myocardial junctions. The goal of this work is to characterise the architecture of the distal section of the Purkinje network by differentiating Purkinje cells from surrounding tissue, performing a segmentation of Purkinje fibres at cellular scale, and mathematically describing its morphology and interconnections...
2016: PloS One
https://www.readbyqxmd.com/read/27711121/identification-of-ompa-like-protein-of-tannerella-forsythia-as-an-o-linked-glycoprotein-and-its-binding-capability-to-lectins
#18
Toshi Horie, Megumi Inomata, Takeshi Into, Yoshiaki Hasegawa, Noriyuki Kitai, Fuminobu Yoshimura, Yukitaka Murakami
Bacterial glycoproteins are associated with physiological and pathogenic functions of bacteria. It remains unclear whether bacterial glycoproteins can bind to specific classes of lectins expressed on host cells. Tannerella forsythia is a gram-negative oral anaerobe that contributes to the development of periodontitis. In this study, we aimed to find lectin-binding glycoproteins in T. forsythia. We performed affinity chromatography of wheat germ agglutinin, which binds to N-acetylglucosamine (GlcNAc) and sialic acid (Sia), and identified OmpA-like protein as the glycoprotein that has the highest affinity...
2016: PloS One
https://www.readbyqxmd.com/read/27696858/improving-efficacy-oral-bioavailability-and-delivery-of-paclitaxel-using-protein-grafted-solid-lipid-nanoparticles
#19
Deep Pooja, Hitesh Kulhari, Madhusudana Kuncha, Shyam Sunder Rachamalla, David J Adams, Vipul Bansal, Ramakrishna Sistla
Oral delivery of anticancer drugs remains challenging despite the most convenient route of drug administration. Hydrophobicity and non-specific toxicities of anticancer agents are major impediments in the development of oral formulation. In this study, we developed wheat germ agglutinin (WGA)-conjugated, solid lipid nanoparticles to improve the oral delivery of the hydrophobic anticancer drug, paclitaxel (PTX). This study was focused to improve the PTX loading in biocompatible lipid matrix with high bioconjugation efficiency...
October 3, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27692771/identification-of-plasmodium-falciparum-reticulocyte-binding-protein-homologue-5-interacting-protein-pfripr-as-a-highly-conserved-blood-stage-malaria-vaccine-candidate
#20
Edward H Ntege, Nobuko Arisue, Daisuke Ito, Tomoyuki Hasegawa, Nirianne M Q Palacpac, Thomas G Egwang, Toshihiro Horii, Eizo Takashima, Takafumi Tsuboi
Genetic variability in Plasmodium falciparum malaria parasites hampers current malaria vaccine development efforts. Here, we hypothesize that to address the impact of genetic variability on vaccine efficacy in clinical trials, conserved antigen targets should be selected to achieve robust host immunity across multiple falciparum strains. Therefore, suitable vaccine antigens should be assessed for levels of polymorphism and genetic diversity. Using a total of one hundred and two clinical isolates from a region of high malaria transmission in Uganda, we analyzed extent of polymorphism and genetic diversity in four recently reported novel blood-stage malaria vaccine candidate proteins: Rh5 interacting protein (PfRipr), GPI anchored micronemal antigen (PfGAMA), rhoptry-associated leucine zipper-like protein 1 (PfRALP1) and Duffy binding-like merozoite surface protein 1 (PfMSPDBL1)...
September 28, 2016: Vaccine
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