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https://www.readbyqxmd.com/read/28237323/risk-factors-associated-with-cytological-endometritis-diagnosed-at-artificial-insemination-in-dairy-cows
#1
O Bogado Pascottini, Miel Hostens, P Sys, P Vercauteren, G Opsomer
In this study, we aimed to determine risk factors associated with cytological endometritis (CYTO) diagnosed at artificial insemination (AI) in dairy cows. The CYTO risk factors were evaluated based on 1.625 AI-CYTO samples obtained from 873 Holstein-Friesian cows from in total 18 dairy herds in Flanders (Belgium). The endometrial cytology samples were obtained using the cytotape technique, which consisted of adapting a 1.5 cm piece of paper tape to a standardly loaded AI catheter, covered with a double guard sheet...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28226771/multimodal-characterization-of-radiologically-detectable-lung-lesions
#2
Atasi Sarkar, A Sadhu, S Basu Thakur, S Sengupta, A Mukherjee, Jyotirmoy Chatterjee, Atasi Sarkar, A Sadhu, S Basu Thakur, S Sengupta, A Mukherjee, Jyotirmoy Chatterjee, S Basu Thakur, A Mukherjee, Atasi Sarkar, S Sengupta, A Sadhu, Jyotirmoy Chatterjee
Diagnosing radiologically detectable lung lesions on the basis of cyto/histopathological staining often suffers from ambiguity, leading to faulty detection of lung diseases, especially cancer. Present study attempted to perform a multimodal characterzation of clinical samples from patients with radiologically detected lung lesions, in order to classify diseases with higher precision. The study included analysing nuclear morphometric and intensity based differences between benign and malignant lung lesions in a quantitative way...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222889/pre-cancer-risk-assessment-in-habitual-smokers-from-dic-images-of-oral-exfoliative-cells-using-active-contour-and-svm-analysis
#3
Susmita Dey, Ripon Sarkar, Kabita Chatterjee, Pallab Datta, Ananya Barui, Santi P Maity
Habitual smokers are known to be at higher risk for developing oral cancer, which is increasing at an alarming rate globally. Conventionally, oral cancer is associated with high mortality rates, although recent reports show the improved survival outcomes by early diagnosis of disease. An effective prediction system which will enable to identify the probability of cancer development amongst the habitual smokers, is thus expected to benefit sizable number of populations. Present work describes a non-invasive, integrated method for early detection of cellular abnormalities based on analysis of different cyto-morphological features of exfoliative oral epithelial cells...
February 9, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28212500/cyto-genotoxic-and-dna-methylation-changes-induced-by-different-crystal-phases-of-tio2-np-in-bronchial-epithelial-16-hbe-cells
#4
Manosij Ghosh, Deniz Öner, Radu-Corneliu Duca, Stevan M Cokic, Sven Seys, Stef Kerkhofs, Kirsten Van Landuyt, Peter Hoet, Lode Godderis
With the increase in use of TiO2-np, a better understanding of their safety is important. In the present study the effect of different crystal phases of TiO2-np (anatase, rutile and anatase: rutile mixture; 20-26nm) were studied for cyto-genotoxicity and global DNA methylation and hydroxymethylation. Cytotoxic response was observed at a concentration of 25μg/ml for the particles tested. Results of comet and micronucleus (with and without CytB) assays revealed significant genotoxic effect of these particles...
February 10, 2017: Mutation Research
https://www.readbyqxmd.com/read/28208588/depicting-binding-mediated-translocation-of-hiv-1-tat-peptides-in-living-cells-with-nanoscale-pens-of-tat-conjugated-quantum-dots
#5
Chien Y Lin, Jung Y Huang, Leu-Wei Lo
Cell-penetrating peptides (CPPs) can translocate across cell membranes, and thus have great potential for the cellular delivery of macromolecular cargoes. However, the mechanism of this cellular uptake process is not yet fully understood. In this study, a time-lapse single-particle light-sheet microscopy technique was implemented to obtain a parallel visualization of the translocating process of individual human immunodeficiency virus 1 (HIV-1) transactivator of transcription (Tat) peptide conjugated quantum dots (TatP-QDs) in complex cellular terrains...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28193999/human-skeletal-muscle-plasmalemma-alters-its-structure-to-change-its-ca-2-handling-following-heavy-load-resistance-exercise
#6
Tanya R Cully, Robyn M Murphy, Llion Roberts, Truls Raastad, Robert G Fassett, Jeff S Coombes, Isuru D Jayasinghe, Bradley S Launikonis
High-force eccentric exercise results in sustained increases in cytoplasmic Ca(2+) levels ([Ca(2+)]cyto), which can cause damage to the muscle. Here we report that a heavy-load strength training bout greatly alters the structure of the membrane network inside the fibres, the tubular (t-) system, causing the loss of its predominantly transverse organization and an increase in vacuolation of its longitudinal tubules across adjacent sarcomeres. The transverse tubules and vacuoles displayed distinct Ca(2+)-handling properties...
February 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/28193293/loss-of-chromosome-13-material-in-cellular-angiofibromas-indicates-pathogenetic-similarity-with-spindle-cell-lipomas
#7
Ioannis Panagopoulos, Ludmila Gorunova, Bodil Bjerkehagen, Kristin Andersen, Marius Lund-Iversen, Sverre Heim
BACKGROUND: Cellular angiofibroma is a rare benign mesenchymal neoplasm with morphological and immunohistochemical similarities to spindle cell lipoma. Karyotypic information on cellular angiofibroma is restricted to one case only which showed loss of material from chromosomes 13 and 16. A few other studies using fluorescence in situ hybridization showed deletions of the RB1 and FOXO1 loci, both of which are located in chromosome band 13q14. We present here cytogenetic data on two cellular angiofibromas with an abnormal karyotype...
February 13, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28186990/ube2l6-ubch8-and-isg15-attenuate-autophagy-in-esophageal-cancer-cells
#8
Chloe M Falvey, Tracey R O'Donovan, Shereen El-Mashed, Michelle J Nyhan, Seamus O'Reilly, Sharon L McKenna
Esophageal cancer remains a poor prognosis cancer due to advanced stage of presentation and drug resistant disease. To understand the molecular mechanisms influencing response to chemotherapy, we examined genes that are differentially expressed between drug sensitive, apoptosis competent esophageal cancer cells (OE21, OE33, FLO-1) and those which are more resistant and do not exhibit apoptosis (KYSE450 and OE19). Members of the ISG15 (ubiquitin-like) protein modification pathway, including UBE2L6 and ISG15, were found to be more highly expressed in the drug sensitive cell lines...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28185768/antitumor-activity-of-paederosidic-acid-in-human-non-small-cell-lung-cancer-cells-via-inducing-mitochondria-mediated-apoptosis
#9
Ping Yu, Lifeng Shi, Meiyan Song, Yu Meng
This study was aimed to investigate antitumor activity of paederosidic acid (PA) in human non-small cell lung cancer cells and explore the related mechanisms. The anti-proliferative effects of PA on A549 cells were evaluated by MTT method and the IC50 values were calculated. Furthermore, the PA-induced apoptosis in A549 cells was determined by fluorescence microscope via staining with DAPI and by flow cytometer via staining with FITC conjugated Annexin V/PI. The expression of apoptosis-related or signaling proteins was investigated by Western blotting...
February 6, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28183600/injectable-dextran-hydrogels-fabricated-by-metal-free-click-chemistry-for-cartilage-tissue-engineering
#10
Xiaoyu Wang, Zihan Li, Ting Shi, Peng Zhao, Kangkang An, Chao Lin, Hongwei Liu
Injectable dextran-based hydrogels were prepared for the first time by bioorthogonal click chemistry for cartilage tissue engineering. Click-crosslinked injectable hydrogels based on cyto-compatible dextran (Mw=10kDa) were successfully fabricated under physiological conditions by metal-free alkyne-azide cycloaddition (click) reaction between azadibenzocyclooctyne-modified dextran (Dex-ADIBO) and azide-modified dextran (Dex-N3). Gelation time of these dextran hydrogels could be regulated in the range of approximately 1...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28174079/chitosan-tio2-composite-membrane-improves-proliferation-and-survival-of-l929-fibroblast-cells-application-in-wound-dressing-and-skin-regeneration
#11
Sudhanshu Shekhar Behera, Urmimala Das, Awanish Kumar, Akalabya Bissoyi, Abhishek Kumar Singh
The microbial infection and growth of fibroblasts are the critical factors for the effective wound healing. The natural polymer-based dressing membranes may mimic extracellular matrix to support the survival, proliferation and differentiation of fibroblasts. The present study deals with the preparation of chitosan/titanium dioxide (CS/TiO2) composite membranes with different degree of TiO2 incorporation, and their characterization in terms of morphology, ultrastructure, thermal behavior and mechanical properties with SEM, FTIR, XRD and tensile strength analyses...
February 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28168403/carbon-monoxide-releasing-molecule-3-improves-myocardial-function-in-mice-with-sepsis-by-inhibiting-nlrp3-inflammasome-activation-in-cardiac-fibroblasts
#12
Wenbo Zhang, Aibin Tao, Ting Lan, Gediminas Cepinskas, Raymond Kao, Claudio M Martin, Tao Rui
The NLRP3 inflammasome is an intracellular multiple-protein complex that controls the maturation and release of interleukin (IL)-1β and IL-18. Endogenous carbon monoxide (CO) is anti-inflammatory. The aim of this study was to assess the effects/mechanisms of CO-releasing molecule-3 (CORM-3)-dependent modulation of the NLRP3 inflammasome in cardiac fibroblasts (CF) and its effect on myocardial function in sepsis. CF were treated with CORM-3 or inactive CORM-3 (iCORM-3) before NLRP3 inflammasome priming with lipopolysaccharides (LPS) or following activation with adenosine triphosphate (ATP)...
March 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28159519/intracellular-responsive-dual-delivery-by-endosomolytic-polyplexes-carrying-dna-anchored-porous-silicon-nanoparticles
#13
Mohammad-Ali Shahbazi, Patrick Vingadas Almeida, Alexandra Correia, Barbara Herranz-Blanco, Neha Shrestha, Ermei Mäkilä, Jarno Salonen, Jouni Hirvonen, Hélder A Santos
Bioresponsive cytosolic nanobased multidelivery has been emerging as an enormously challenging novel concept due to the intrinsic protective barriers of the cells and hardly controllable performances of nanomaterials. Here, we present a new paradigm to advance nano-in-nano integration technology amenable to create multifunctional nanovehicles showing considerable promise to overcome restrictions of intracellular delivery, solve impediments of endosomal localization and aid effectual tracking of nanoparticles...
February 1, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28158213/reproductive-output-of-a-non-zooxanthellate-temperate-coral-is-unaffected-by-temperature-along-an-extended-latitudinal-gradient
#14
Valentina Airi, Selena Prantoni, Marco Calegari, Veronica Lisini Baldi, Francesca Gizzi, Chiara Marchini, Oren Levy, Giuseppe Falini, Zvy Dubinsky, Stefano Goffredo
Global environmental change, in marine ecosystems, is associated with concurrent shifts in water temperature, circulation, stratification, and nutrient input, with potentially wide-ranging biological effects. Variations in seawater temperature might alter physiological functioning, reproductive efficiency, and demographic traits of marine organisms, leading to shifts in population size and abundance. Differences in temperature tolerances between organisms can identify individual and ecological characteristics, which make corals able to persist and adapt in a climate change context...
2017: PloS One
https://www.readbyqxmd.com/read/28157718/in-vitro-comparative-assessment-of-decellularized-bovine-pericardial-patches-and-commercial-bioprosthetic-heart-valves
#15
Paola Aguiari, Laura Iop, Francesca Favaretto, Cátia Marisa Lourenco Fidalgo, Filippo Naso, Gabriella Milan, Vincenzo Vindigni, Michel Spina, Franco Bassetto, Andrea Bagno, Roberto Vettor, Gino Gerosa
Notwithstanding their wide exploitation, biological prosthetic heart valves are characterized by limited durability (10-15 years). The treatment of biological tissues with chemical crosslinking agents such as glutaraldehyde accounts for the enhanced risk of structural deterioration associated with the early failure of bioprosthetic valves. To overcome the shortcomings of the currently available solutions, adoption of decellularized biological tissues of animal origin has emerged as a promising approach. The present study aims to assess in vitro cardiovascular scaffolds composed of bovine pericardium decellularized with the novel TRITDOC (TRIton-X100 and TauroDeOxyCholic acid) procedure...
February 3, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28153636/quercetin-derivatives-as-potent-inducers-of-selective-cytotoxicity-in-glioma-cells
#16
Paola Dell'Albani, Barbara Di Marco, Sonia Grasso, Concetta Rocco, Mario C Foti
Quercetin (Q) is a flavonoid widely distributed in the plant kingdom and well-known for its ability to exert antioxidant, prooxidant and anticarcinogenic activities in several tumor cells. Furthermore, quercetin plays an important role both in the regulation of key elements in cellular signal transduction pathways related to apoptotic cell death, and in cell cycle progression. Several studies have reported of toxic effects of Q against glioma cell lines. In this study, the effects of Q and of some Q-derivatives (acyl esters and bromo-derivatives) on U373-MG and 9L glioma cell lines survival are analyzed...
January 30, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28135651/baicalin-and-chrysin-mixture-imparts-cyto-protection-against-methylglyoxal-induced-cytotoxicity-and-diabetic-tubular-injury-by-modulating-rage-oxidative-stress-and-inflammation
#17
Jyotsna Singh, Bhushan P Chaudhari, Poonam Kakkar
Protective effect of mixture of flavonoids baicalin and chrysin (BCH) was studied against methylglyoxal (MG, a precursor of AGEs) induced cytotoxicity in NRK 52E kidney epithelial cells. Flow cytometry and microscopic analysis showed increased ROS generation, compromised antioxidant status, depolarization of mitochondria and apoptosis in MG stressed cells which were significantly transformed (p≤0.01) during BCH co-treatment. In vivo studies in streptozotocin induced diabetic rats increased protein levels of iNOS, protein kinase C (PKC) and decreased IκB which was modulated by oral BCH treatment (75mg baicalin and 10mg chrysin/kg b...
March 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28135290/global-proteome-changes-in-the-rat-diaphragm-induced-by-endurance-exercise-training
#18
Kurt J Sollanek, Jatin G Burniston, Andreas N Kavazis, Aaron B Morton, Michael P Wiggs, Bumsoo Ahn, Ashley J Smuder, Scott K Powers
Mechanical ventilation (MV) is a life-saving intervention for many critically ill patients. Unfortunately, prolonged MV results in the rapid development of diaphragmatic atrophy and weakness. Importantly, endurance exercise training results in a diaphragmatic phenotype that is protected against ventilator-induced diaphragmatic atrophy and weakness. The mechanisms responsible for this exercise-induced protection against ventilator-induced diaphragmatic atrophy remain unknown. Therefore, to investigate exercise-induced changes in diaphragm muscle proteins, we compared the diaphragmatic proteome from sedentary and exercise-trained rats...
2017: PloS One
https://www.readbyqxmd.com/read/28126643/comparative-in-vitro-genotoxicity-study-of-zno-nanoparticles-zno-macroparticles-and-zncl2-to-mdck-kidney-cells-size-matters
#19
Veno Kononenko, Neža Repar, Nika Marušič, Barbara Drašler, Tea Romih, Samo Hočevar, Damjana Drobne
In the present study, we evaluated the roles that ZnO particle size and Zn ion release have on cyto- and genotoxicity in vitro. The Madin-Darby canine kidney (MDCK) cells were treated with ZnO nanoparticles (NPs), ZnO macroparticles (MPs), and ZnCl2 as a source of free Zn ions. We first tested cytotoxicity to define sub-cytotoxic exposure concentrations and afterwards we performed alkaline comet and cytokinesis-block micronucleus assays. Additionally, the activities of both catalase (CAT) and glutathione S-transferase (GST) were evaluated in order to examine the potential impairment of cellular stress-defence capacity...
January 24, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28125936/an-adult-mouse-thyroid-side-population-cell-line-that-exhibits-enriched-epithelial-to-mesenchymal-transition
#20
Tsubasa Murata, Manabu Iwadate, Yoshinori Takizawa, Masaaki Miyakoshi, Suguru Hayase, Wenjing Yang, Yan Cai, Shigetoshi Yokoyama, Kunio Nagashima, Yoshiyuki Wakabayashi, Jun Zhu, Shioko Kimura
BACKGROUND: Studies of thyroid stem/progenitor cells have been hampered due to the small organ size and lack of tissue, which limits the yield of these cells. A continuous source that allows the study and characterization of thyroid stem/progenitor cells is desired to push the field forward. METHOD: A cell line was established from Hoechst-resistant side population cells derived from mouse thyroid that were previously shown to contain stem/progenitor-like cells...
January 27, 2017: Thyroid: Official Journal of the American Thyroid Association
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