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https://www.readbyqxmd.com/read/28093222/swainsonine-induced-lysosomal-storage-disease-in-goats-caused-by-the-ingestion-of-sida-rodrigoi-monteiro-in-north-western-argentina
#1
Juan Francisco Micheloud, Raúl Marin, Luis Adrian Colque-Caro, Olga Gladys Martínez, Dale Gardner, Eduardo Juan Gimeno
There are numerous poisonous plants that can induce intralysosomal accumulation of glycoproteins and neurologic syndromes. Here we describe for the first time, a disease caused by ingesting Sida rodrigoi Monteiro in goats in North-western Argentina. The animals showed weight loss, indifference to the environment, unsteady gait and ataxia. Histopathologic studies showed vacuolization in cells of various organs, mainly in the CNS. The material deposited in the cells was positive for LCA (Lens culinaris agglutinin), WGA (Triticum vulgaris agglutinin), sWGA (succinyl-Triticum vulgaris agglutinin) and Con-A (Concanavalia ensiformis agglutinin) lectins...
January 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28060302/a-platform-of-anti-biofilm-assays-suited-to-the-exploration-of-natural-compound-libraries
#2
Malena E Skogman, Pia M Vuorela, Adyary Fallarero
Biofilms are regarded as one of the most challenging topics of modern biomedicine, and they are potentially responsible for over 80% of antibiotic-tolerant infections. Biofilms have displayed an exceptionally high tolerance for chemotherapy, which is thought to be multifactorial. For instance, the matrix provides a physical barrier that decreases the penetration of antibiotics into the biofilm. Also, cells within the biofilms are phenotypically diverse. Likely, biofilm resilience arises from a combination of these and other, yet unknown, mechanisms...
December 27, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28032398/cultivation-and-characterisation-of-the-surface-markers-and-carbohydrate-profile-of-human-corneal-endothelial-cells
#3
Richárd Nagymihály, Zoltán Veréb, Réka Albert, Laura Sidney, Harminder Dua, Andrew Hopkinson, Goran Petrovski
BACKGROUND: To characterise human corneal endothelial cell (HCEnC) cultures generated by the peel-and-digest method based on their surface protein/carbohydrate expression pattern. METHODS: QPCR was used to compare expression of Vimentin, CD90, Cytokeratin-19, ZO-1, Claudin 14 in cultured HCEnC and cell line B4G12 versus stromal cells. Fluorescence-activated cell sorting (FACS) was used to assess surface protein distribution of cultured and uncultured HCEnC. Distribution of surface proteins/ carbohydrates was visualised by immunofluorescent and lectin staining...
December 29, 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/27915451/interobserver-agreement-in-detection-of-white-globe-appearance-and-the-ability-of-educational-lectures-to-improve-the-diagnosis-of-gastric-lesions
#4
Hitoshi Omura, Naohiro Yoshida, Tomoyuki Hayashi, Kazuhiro Miwa, Hajime Takatori, Hirokazu Tsuji, Katsuhisa Inamura, Yukihiro Shirota, Hiroyuki Aoyagi, Takaharu Masunaga, Kazuyoshi Katayanagi, Hiroshi Kurumaya, Shuichi Kaneko, Hisashi Doyama
BACKGROUND: White globe appearance (WGA) refers to a small white lesion of globular shape underneath cancerous gastric epithelium that can be clearly visualized by magnifying endoscopy with narrowband imaging (M-NBI). WGA has been reported to be a novel endoscopic marker that is highly specific in differentiating early gastric cancer (GC) from low-grade adenoma, and has a significantly higher prevalence in early GCs than in noncancerous lesions. However, interobserver agreement in detecting WGA and whether training intervention can improve diagnostic accuracy are unknown...
December 3, 2016: Gastric Cancer
https://www.readbyqxmd.com/read/27898687/effects-of-chronologic-age-and-young-child-exposure-on-respiratory-syncytial-virus-disease-among-us-preterm-infants-born-at-32-to-35-weeks-gestation
#5
Eric A F Simões, Evan J Anderson, Xionghua Wu, Christopher S Ambrose
OBJECTIVE: To estimate the incidence of respiratory syncytial virus (RSV) disease as a function of chronologic age and exposure to young children in US preterm infants. METHODS: In the RSV Respiratory Events among Preterm Infants Outcomes and Risk Tracking (REPORT) study, preterm infants born at 32-35 weeks gestational age (wGA) were enrolled from 188 US clinics and followed September-May of 2009-2010 or 2010-2011. Infants with medically-attended acute respiratory illness had nasal/pharyngeal swabs collected for viral testing...
2016: PloS One
https://www.readbyqxmd.com/read/27897433/affinity-chromatography-matrices-for-depletion-and-purification-of-casein-glycomacropeptide-from-bovine-whey
#6
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/27883257/determining-the-binding-affinities-of-prostate-specific-antigen-to-lectins-spr-and-microarray-approaches
#7
Pavel Damborský, Martina Zámorová, Jaroslav Katrlík
Prostate cancer (PCa) is one of the most common newly diagnosed cancers among men and we focused on its traditional biomarker, prostate-specific antigen (PSA), using targeted glycomics-based strategies. The aberrant glycosylation pattern of PSA may serve as a valuable tool for improving PCa diagnosis including its early-stage. In this study, we evaluated the usability of two techniques, surface plasmon resonance and protein microarray assay, for the study and characterization of interactions of PSA (both free and complexed) with six lectins (SNA, ConA, RCA, AAL, WGA and MAA II)...
December 2016: Proteomics
https://www.readbyqxmd.com/read/27861854/lectins-selectively-label-cartilage-condensations-and-the-otic-neuroepithelium-within-the-embryonic-chicken-head
#8
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/27855996/impact-of-the-updated-guidance-for-palivizumab-prophylaxis-against-respiratory-syncytial-virus-infection-a-single-center-experience
#9
Bavani Rajah, Pablo J Sánchez, Cristina Garcia-Maurino, Amy Leber, Octavio Ramilo, Asuncion Mejias
OBJECTIVES: To determine the differences in number of respiratory syncytial virus (RSV) hospitalizations and outcomes in infants 29(0/7)-34(6/7) weeks' gestational age (wGA) the season before (season 1 [S1]; 2013-2014) and after (season 2 [S2]; 2014-2015) implementation of the 2014 American Academy of Pediatrics revised guidance for palivizumab prophylaxis. STUDY DESIGN: Children <12 months of age hospitalized with RSV infection were identified by the International Classification of Diseases, Ninth Revision codes and virology reports...
November 15, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27850324/685-sentinel1-icu-admissions-for-rsv-among-us-infants-born-at-29-35-wga-not-receiving-immunoprophylaxis
#10
Paul Checchia, Michael Forbes, Evan Anderson, John DeVincenzo, Leonard Krilov, Scott McBride, Veena Kumar, Christopher Ambrose
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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
#11
J D Babot, E Argañaraz Martínez, M J Lorenzo-Pisarello, M C Apella, A Perez Chaia
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 were investigated. 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. Complementary sugars to WGA were detected on the surface of one Enterococcus and 9 Lactobacillus strains isolated from poultry...
January 19, 2017: British Poultry Science
https://www.readbyqxmd.com/read/27833641/carbohydrate-moieties-and-cytoenzymatic-characterization-of-hemocytes-in-whiteleg-shrimp-litopenaeus-vannamei
#12
Norma Estrada, Edwin Velázquez, Carmen Rodríguez-Jaramillo, Felipe Ascencio
Hemocytes represent one of the most important defense mechanisms against foreign material in Crustacea and are also involved in a variety of other physiological responses. Fluorescent lectin-binding assays and cytochemical reactions were used to identify specificity and distribution of carbohydrate moieties and presence of several hydrolytic enzymes, in hemocytes of whiteleg shrimp Litopenaeus vannamei. Two general classes of circulating hemocytes (granular and agranular) exist in L. vannamei, which express carbohydrates residues for FITC-conjugated lectins WGA, LEA, and PNA; UEA and Con-A were not observed...
2016: International Journal of Cell Biology
https://www.readbyqxmd.com/read/27817195/mechanisms-underlying-lung-resistance-related-protein-lrp-mediated-doxorubicin-resistance-of-non-small-cell-lung-cancer-cells
#13
Yu-Lun Chen, Tsung-Ying Yang, Chieh-Liang Wu, Kun-Chieh Chen, Shih-Lan Hsu, Chi-Mei Hsueh
Lung resistance-related protein (LRP) is a human major vault protein (MVP) implicated in drug resistance of cancer cells in a cell-type dependent manner. The primary goal of the study was to understand the role(s) of LRP in doxorubicin (DOX) resistance of non-small cell lung cancer (NSCLC) cells and the underlying working mechanisms. In the study, the roles of LRP in the regulation of DOX dynamics, nuclear import of minor vault proteins (vault poly (ADP-ribose) polymerase, vPARP and telomerase associated protein-1, TEP-1) and DOX-mediated cytotoxicity were examined in CH27 and H460 cells...
31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27801529/a-histochemical-approach-to-glycan-diversity-in-the-urothelium-of-pig-urinary-bladder
#14
Maria Mastrodonato, Donatella Mentino, Angela Lopedota, Annalisa Cutrignelli, Giovanni Scillitani
Intracellular glycans in the urothelium of urinary bladder of 10 adult male Landrace pigs were characterized in situ by immunohistochemical detection of Muc1 mucin by anti MUC1 from rabbit, conventional histochemical techniques (Periodic-Acid Schiff, Alcian Blue pH 2.5, High-Iron Diamine), and binding with 13 lectins (PNA, DBA, RCA-I, WGA, SBA, BSI-B4, ConA, AAA, UEA-I, LTA, LFA, MAA-II, SNA) combined with chemical and enzymatic pre-treatments (β-elimination, desulfation and neuraminidase) to gather reference data for this model animal...
November 1, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27798069/recombinant-fungal-lectin-as-a-new-tool-to-investigate-o-glcnacylation-processes
#15
Oriane Machon, Steffi F Baldini, João P Ribeiro, Agata Steenackers, Annabelle Varrot, Tony Lefebvre, Anne Imberty
Glycosylation is a group of post-translational modifications that displays a large variety of structures and are implicated in a plethora of biological processes. Therefore, studying glycosylation requires different technical approaches and reliable tools, lectins being part of them. Here we describe the use of the recombinant mushroom lectin PVL to discriminate O-GlcNAcylation, a modification consisting in the attachment of a single N-acetylglucosamine residue to proteins confined within the cytosolic, nuclear and mitochondrial compartments...
October 18, 2016: Glycobiology
https://www.readbyqxmd.com/read/27786563/non-invasive-pre-implantation-aneuploidy-screening-and-diagnosis-of-beta-thalassemia-ivsii654-mutation-using-spent-embryo-culture-medium
#16
WeiQiang Liu, JianQiao Liu, HongZi Du, JiaWei Ling, XiaoFang Sun, DunJin Chen
BACKGROUND: Cell-free nuclear DNA has been isolated from spent embryo culture medium. Whether this small amount of DNA can be amplified at the whole genome level and the concordance rate of karyotypes and specific alleles between biopsied cells and media has not been evaluated. METHODS: Seven couples were recruited, 88 donated embryos and their corresponding media were collected for whole genome amplification (WGA). The efficiency of WGA, the concordance of chromosome status, and the HBB gene IVSII654 allele between biopsied cells and media were investigated...
December 14, 2016: Annals of Medicine
https://www.readbyqxmd.com/read/27773703/n-glycoform-dependent-interactions-of-megalin-with-its-ligands
#17
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
#18
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/27761919/genome-wide-copy-number-analysis-on-dna-from-fetal-cells-isolated-from-the-blood-of-pregnant-women
#19
Steen Kølvraa, Ripudaman Singh, Elizabeth A Normand, Sadeem Qdaisat, Ignatia B van den Veyver, Laird Jackson, Lotte Hatt, Palle Schelde, Niels Uldbjerg, Else Marie Vestergaard, Li Zhao, Rui Chen, Chad A Shaw, Amy M Breman, Arthur L Beaudet
OBJECTIVE: Non-invasive prenatal testing (NIPT) based on fetal cells in maternal blood has the advantage over NIPT based on circulating cell-free fetal DNA in that there is no contamination with maternal DNA. This will most likely result in better detection of chromosomal aberrations including subchromosomal defects. The objective of this study was to test whether fetal cells enriched from maternal blood can be used for cell-based NIPT. METHODS: We present a method for enriching fetal cells from maternal blood, subsequent amplification of the fetal genome and detection of chromosomal and subchromosomal variations in the genome...
December 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27759476/tumor-associated-glycans-and-tregs-in-immunogenicity-of-an-autologous-cell-based-vaccine
#20
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
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