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https://www.readbyqxmd.com/read/28295628/pathophysiological-aspects-of-red-blood-cells-in-end-stage-renal-disease-patients-resistant-to-recombinant-human-erythropoietin-therapy
#1
Hara T Georgatzakou, Vassilis L Tzounakas, Anastasios G Kriebardis, Athanassios D Velentzas, Effie G Papageorgiou, Artemis I Voulgaridou, Apostolos C Kokkalis, Marianna H Antonelou, Issidora S Papassideri
OBJECTIVE: Modified, bio-reactive red blood cells (RBCs) and RBC-derived microvesicles likely contribute to the hematological and cardiovascular complications in end-stage renal disease (ESRD). This study assesses the physiological profile of red blood cells (RBCs) in end-stage renal disease (ESRD) patients receiving standard or high doses of recombinant human erythropoietin (rhEPO). METHOD: Blood samples from twenty-eight patients under sustained hemodialysis, responsive or not to standard rhEPO administration were examined for RBC morphology, fragility, hemolysis, redox status, removal signaling, membrane protein composition and microvesiculation before and after dialysis...
March 10, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28291226/neuronal-elavl-proteins-utilize-auf-1-as-a-co-partner-to-induce-neuron-specific-alternative-splicing-of-app
#2
Apostolia Fragkouli, Pelagia Koukouraki, Ioannis S Vlachos, Maria D Paraskevopoulou, Artemis G Hatzigeorgiou, Epaminondas Doxakis
Aβ peptide that accumulates in Alzheimer's disease brain, derives from proteolytic processing of the amyloid precursor protein (APP) that exists in three main isoforms derived by alternative splicing. The isoform APP695, lacking exons 7 and 8, is predominately expressed in neurons and abnormal neuronal splicing of APP has been observed in the brain of patients with Alzheimer's disease. Herein, we demonstrate that expression of the neuronal members of the ELAVL protein family (nELAVLs) correlate with APP695 levels in vitro and in vivo...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286324/effects-of-dihydroorotate-dehydrogenase-dhodh-inhibitors-on-the-growth-of-theileria-equi-and-babesia-caballi-in%C3%A2-vitro
#3
Ketsarin Kamyingkird, Shinuo Cao, Bumduuren Tuvshintulga, Akram Salama, Ahmed Abdelmoniem Mousa, Artemis Efstratiou, Yoshifumi Nishikawa, Naoaki Yokoyama, Ikuo Igarashi, Xuenan Xuan
Theileria equi and Babesia caballi are the causative agents of equine piroplasmosis (EP), which affects equine production in various parts of the world. However, a safe and effective drug is not currently available for treatment of EP. Dihydroorotate dehydrogenase (DHODH) is the fourth enzyme in the de novo pyrimidine synthesis pathway and has been known as a novel drug target for several apicomplexan protozoan parasites. In this study, we evaluated four DHODH inhibitors; atovaquone (ATV), leflunomide (LFN), brequinar (Breq), and 7-hydroxy-5-[1,2,4] triazolo [1,5,a] pyrimidine (TAZ) on the growth of T...
March 9, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28281063/agroforestry-a-sustainable-environmental-practice-for-carbon-sequestration-under-the-climate-change-scenarios-a-review
#4
Farhat Abbas, Hafiz Mohkum Hammad, Shah Fahad, Artemi Cerdà, Muhammad Rizwan, Wajid Farhad, Sana Ehsan, Hafiz Faiq Bakhat
Agroforestry is a sustainable land use system with a promising potential to sequester atmospheric carbon into soil. This system of land use distinguishes itself from the other systems, such as sole crop cultivation and afforestation on croplands only through its potential to sequester higher amounts of carbon (in the above- and belowground tree biomass) than the aforementioned two systems. According to Kyoto protocol, agroforestry is recognized as an afforestation activity that, in addition to sequestering carbon dioxide (CO2) to soil, conserves biodiversity, protects cropland, works as a windbreak, and provides food and feed to human and livestock, pollen for honey bees, wood for fuel, and timber for shelters construction...
March 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28266059/fractional-anisotropy-derived-from-the-diffusion-tensor-distribution-function-boosts-power-to-detect-alzheimer-s-disease-deficits
#5
Talia M Nir, Neda Jahanshad, Julio E Villalon-Reina, Dmitry Isaev, Artemis Zavaliangos-Petropulu, Liang Zhan, Alex D Leow, Clifford R Jack, Michael W Weiner, Paul M Thompson
PURPOSE: In diffusion MRI (dMRI), fractional anisotropy derived from the single-tensor model (FA(DTI) ) is the most widely used metric to characterize white matter (WM) microarchitecture, despite known limitations in regions with crossing fibers. Due to time constraints when scanning patients in clinical settings, high angular resolution diffusion imaging acquisition protocols, often used to overcome these limitations, are still rare in clinical population studies. However, the tensor distribution function (TDF) may be used to model multiple underlying fibers by representing the diffusion profile as a probabilistic mixture of tensors...
March 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28224154/unexpectedly-high-concentrations-of-monoterpenes-in-a-study-of-uk-homes
#6
Chunting Michelle Wang, Benjamin Barratt, Nicola Carslaw, Artemis Doutsi, Rachel E Dunmore, Martyn W Ward, Alastair C Lewis
The abundance of volatile organic compounds (VOCs) found in homes depends on many factors such as emissions, ventilation and the oxidative environment and these are evolving over time, reflecting changes in chemical use, behaviour and building design/materials. The concentrations of VOCs in 25 UK homes of varying ages, design and occupancy were quantified using continuous indoor air sampling over five days. Air was collected through low flow (1 mL min(-1)) constant flow restrictors into evacuated 6 L internally silica-treated canisters until the canisters reached atmospheric pressure...
February 22, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28214721/waterborne-transmission-of-protozoan-parasites-review-of-worldwide-outbreaks-an-update-2011-2016
#7
REVIEW
Artemis Efstratiou, Jerry E Ongerth, Panagiotis Karanis
This review provides a comprehensive update of worldwide waterborne parasitic protozoan outbreaks that occurred with reports published since previous reviews largely between January 2011 and December 2016. At least 381 outbreaks attributed to waterborne transmission of parasitic protozoa were documented during this time period. The nearly half (49%) of reports occurred in New Zealand, 41% of the outbreaks in North America and 9% in Europe. The most common etiological agent was Cryptosporidium spp., reported in 63% (239) of the outbreaks, while Giardia spp...
January 25, 2017: Water Research
https://www.readbyqxmd.com/read/28179544/long-term-tracking-of-budding-yeast-cells-in-brightfield-microscopy-cellstar-and-the-evaluation-platform
#8
Cristian Versari, Szymon Stoma, Kirill Batmanov, Artémis Llamosi, Filip Mroz, Adam Kaczmarek, Matt Deyell, Cédric Lhoussaine, Pascal Hersen, Gregory Batt
With the continuous expansion of single cell biology, the observation of the behaviour of individual cells over extended durations and with high accuracy has become a problem of central importance. Surprisingly, even for yeast cells that have relatively regular shapes, no solution has been proposed that reaches the high quality required for long-term experiments for segmentation and tracking (S&T) based on brightfield images. Here, we present CellStar, a tool chain designed to achieve good performance in long-term experiments...
February 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28177069/induction-of-cold-hardiness-in-an-invasive-herbivore-the-case-of-hemlock-woolly-adelgid-hemiptera-adelgidae
#9
Joseph S Elkinton, Jeffrey A Lombardo, Artemis D Roehrig, Thomas J McAvoy, Albert Mayfield, Mark Whitmore
No abstract text is available yet for this article.
February 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28174561/a-framework-for-the-evaluation-of-biosecurity-commercial-regulatory-and-scientific-impacts-of-plant-viruses-and-viroids-identified-by-ngs-technologies
#10
Sebastien Massart, Thierry Candresse, José Gil, Christophe Lacomme, Lukas Predajna, Maja Ravnikar, Jean-Sébastien Reynard, Artemis Rumbou, Pasquale Saldarelli, Dijana Škorić, Eeva J Vainio, Jari P T Valkonen, Hervé Vanderschuren, Christina Varveri, Thierry Wetzel
Recent advances in high-throughput sequencing technologies and bioinformatics have generated huge new opportunities for discovering and diagnosing plant viruses and viroids. Plant virology has undoubtedly benefited from these new methodologies, but at the same time, faces now substantial bottlenecks, namely the biological characterization of the newly discovered viruses and the analysis of their impact at the biosecurity, commercial, regulatory, and scientific levels. This paper proposes a scaled and progressive scientific framework for efficient biological characterization and risk assessment when a previously known or a new plant virus is detected by next generation sequencing (NGS) technologies...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28157149/improved-methods-for-fire-risk-assessment-in-low-income-and-informal-settlements
#11
REVIEW
John Twigg, Nicola Christie, James Haworth, Emmanuel Osuteye, Artemis Skarlatidou
Fires cause over 300,000 deaths annually worldwide and leave millions more with permanent injuries: some 95% of these deaths are in low- and middle-income countries. Burn injury risk is strongly associated with low-income and informal (or slum) settlements, which are growing rapidly in an urbanising world. Fire policy and mitigation strategies in poorer countries are constrained by inadequate data on incidence, impacts, and causes, which is mainly due to a lack of capacity and resources for data collection, analysis, and modelling...
February 1, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28153470/from-hiv-infection-to-therapeutic-response-a-population-based-longitudinal-hiv-cascade-of-care-study-in-kwazulu-natal-south-africa
#12
Noah Haber, Frank Tanser, Jacob Bor, Kevindra Naidu, Tinofa Mutevedzi, Kobus Herbst, Kholoud Porter, Deenan Pillay, Till Bärnighausen
BACKGROUND: Standard approaches to estimation of losses in the HIV cascade of care are typically cross-sectional and do not include the population stages before linkage to clinical care. We used indiviual-level longitudinal cascade data, transition by transition, including population stages, both to identify the health-system losses in the cascade and to show the differences in inference between standard methods and the longitudinal approach. METHODS: We used non-parametric survival analysis to estimate a longitudinal HIV care cascade for a large population of people with HIV residing in rural KwaZulu-Natal, South Africa...
January 30, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28132842/dna-double-strand-break-resection-occurs-during-non-homologous-end-joining-in-g1-but-is-distinct-from-resection-during-homologous-recombination
#13
Ronja Biehs, Monika Steinlage, Olivia Barton, Szilvia Juhász, Julia Künzel, Julian Spies, Atsushi Shibata, Penny A Jeggo, Markus Löbrich
Canonical non-homologous end joining (c-NHEJ) repairs DNA double-strand breaks (DSBs) in G1 cells with biphasic kinetics. We show that DSBs repaired with slow kinetics, including those localizing to heterochromatic regions or harboring additional lesions at the DSB site, undergo resection prior to repair by c-NHEJ and not alt-NHEJ. Resection-dependent c-NHEJ represents an inducible process during which Plk3 phosphorylates CtIP, mediating its interaction with Brca1 and promoting the initiation of resection. Mre11 exonuclease, EXD2, and Exo1 execute resection, and Artemis endonuclease functions to complete the process...
February 16, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28120120/modeling-optical-properties-of-polymer-solvent-complexes-the-chloroform-influence-on-the-p3ht-and-n2200-absorption-spectra
#14
Rodrigo Maia Dias Ledo, Luciano Almeida Leal, Patrick Pascoal de Brito Silva, Wiliam Ferreira da Cunha, Leonardo Evaristo de Souza, Antonio Luciano Almeida Fonseca, Artemis Marti Ceschin, Demétrio Antonio da Silva Filho, Luiz Antonio Ribeiro Junior
The optical properties of polymer/solvent systems composed by the polymers P3HT and PolyeraActivInk N2200 under the present of chloroform as solvent are experimentally and theoretically investigated using UV-Vis spectroscopy, molecular dynamics (MD), and density functional theory (DFT) calculations. The study is focused on obtaining the theoretical methodologies that properly describes the experimentally obtained absorption spectra of polymer-solvent complexes. In order to investigate the solvent influence, two different approaches are taken into account: the solvation shell method (SSM) and the polarizable continuum model (PCM)...
February 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28119004/contribution-of-raindrop-impact-to-the-change-of-soil-physical-properties-and-water-erosion-under-semi-arid-rainfalls
#15
Ali Reza Vaezi, Morvarid Ahmadi, Artemi Cerdà
Soil erosion by water is a three-phase process that consists of detachment of soil particles from the soil mass, transportation of detached particles either by raindrop impact or surface water flow, and sedimentation. Detachment by raindrops is a key component of the soil erosion process. However, little information is available on the role of raindrop impact on soil losses in the semi-arid regions where vegetation cover is often poor and does not protect the soil from rainfall. The objective of this study is to determine the contribution of raindrop impact to changes in soil physical properties and soil losses in a semiarid weakly-aggregated agricultural soil...
January 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28100280/erratum-to-the-whole-genome-sequence-of-the-mediterranean-fruit-fly-ceratitis-capitata-wiedemann-reveals-insights-into-the-biology-and-adaptive-evolution-of-a-highly-invasive-pest-species
#16
Alexie Papanicolaou, Marc F Schetelig, Peter Arensburger, Peter W Atkinson, Joshua B Benoit, Kostas Bourtzis, Pedro Castañera, John P Cavanaugh, Hsu Chao, Christopher Childers, Ingrid Curril, Huyen Dinh, HarshaVardhan Doddapaneni, Amanda Dolan, Shannon Dugan, Markus Friedrich, Giuliano Gasperi, Scott Geib, Georgios Georgakilas, Richard A Gibbs, Sarah D Giers, Ludvik M Gomulski, Miguel González-Guzmán, Ana Guillem-Amat, Yi Han, Artemis G Hatzigeorgiou, Pedro Hernández-Crespo, Daniel S T Hughes, Jeffery W Jones, Dimitra Karagkouni, Panagiota Koskinioti, Sandra L Lee, Anna R Malacrida, Mosè Manni, Kostas Mathiopoulos, Angela Meccariello, Monica Munoz-Torres, Shwetha C Murali, Terence D Murphy, Donna M Muzny, Georg Oberhofer, Félix Ortego, Maria D Paraskevopoulou, Monica Poelchau, Jiaxin Qu, Martin Reczko, Hugh M Robertson, Andrew J Rosendale, Andrew E Rosselot, Giuseppe Saccone, Marco Salvemini, Grazia Savini, Patrick Schreiner, Francesca Scolari, Paolo Siciliano, Sheina B Sim, George Tsiamis, Enric Ureña, Ioannis S Vlachos, John H Werren, Ernst A Wimmer, Kim C Worley, Antigone Zacharopoulou, Stephen Richards, Alfred M Handler
No abstract text is available yet for this article.
January 18, 2017: Genome Biology
https://www.readbyqxmd.com/read/28099128/bone-health-assessment-of-food-allergic-children-on-restrictive-diets-a-practical-guide
#17
Artemis E Doulgeraki, Emmanouel M Manousakis, Nikolaos G Papadopoulos
BACKGROUND: Food allergy in childhood is on the rise globally and is managed with avoidance diets; recent case reports of food allergic children with nutritional rickets in the literature highlight the importance of close monitoring of bone health in this population. METHODS: There is no consensus as yet with regard to bone health evaluation in food allergic children; therefore, extensive literature search was performed and the existing evidence is presented, along with a relevant algorithm...
February 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28089563/diagnostic-and-prognostic-relevance-of-magnetic-resonance-imaging-and-electrophysiological-findings-in-acute-spinal-ischemia
#18
Dimitrios Artemis, Marc Wolf, Christian Blahak, Kristina Szabo, Michael G Hennerici, Marc Fatar
OBJECTIVE: Our purpose was to classify the rare entity of spontaneous spinal ischemia with clinical, magnetic resonance-tomographic, and electrophysiological parameters to determine criteria for outcome prediction. METHODS: We analyzed the stroke registry database of the University Hospital Mannheim, Germany, from 2004 to 2010 for patients with a diagnosis of vascular spinal cord ischemia. RESULTS: Ten patients were identified (mean age 65 years [range 50-83], 5 women)...
January 12, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28080985/emerging-oomycete-threats-to-plants-and-animals
#19
REVIEW
Lida Derevnina, Benjamin Petre, Ronny Kellner, Yasin F Dagdas, Mohammad Nasif Sarowar, Artemis Giannakopoulou, Juan Carlos De la Concepcion, Angela Chaparro-Garcia, Helen G Pennington, Pieter van West, Sophien Kamoun
Oomycetes, or water moulds, are fungal-like organisms phylogenetically related to algae. They cause devastating diseases in both plants and animals. Here, we describe seven oomycete species that are emerging or re-emerging threats to agriculture, horticulture, aquaculture and natural ecosystems. They include the plant pathogens Phytophthora infestans, Phytophthora palmivora, Phytophthora ramorum, Plasmopara obducens, and the animal pathogens Aphanomyces invadans, Saprolegnia parasitica and Halioticida noduliformans For each species, we describe its pathology, importance and impact, discuss why it is an emerging threat and briefly review current research activities...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28077764/antimicrobial-peptide-coatings-for-hydroxyapatite-electrostatic-and-covalent-attachment-of-antimicrobial-peptides-to-surfaces
#20
Leigh Townsend, Richard L Williams, Olachi Anuforom, Matthew R Berwick, Fenella Halstead, Erik Hughes, Artemis Stamboulis, Beryl Oppenheim, Julie Gough, Liam Grover, Robert A H Scott, Mark Webber, Anna F A Peacock, Antonio Belli, Ann Logan, Felicity de Cogan
The interface between implanted devices and their host tissue is complex and is often optimized for maximal integration and cell adhesion. However, this also gives a surface suitable for bacterial colonization. We have developed a novel method of modifying the surface at the material-tissue interface with an antimicrobial peptide (AMP) coating to allow cell attachment while inhibiting bacterial colonization. The technology reported here is a dual AMP coating. The dual coating consists of AMPs covalently bonded to the hydroxyapatite surface, followed by deposition of electrostatically bound AMPs...
January 2017: Journal of the Royal Society, Interface
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