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https://www.readbyqxmd.com/read/28223940/reconsideration-of-serial-visual-reversal-learning-in-octopus-octopus-vulgaris-from-a-methodological-perspective
#1
Alexander Bublitz, Severine R Weinhold, Sophia Strobel, Guido Dehnhardt, Frederike D Hanke
Octopuses (Octopus vulgaris) are generally considered to possess extraordinary cognitive abilities including the ability to successfully perform in a serial reversal learning task. During reversal learning, an animal is presented with a discrimination problem and after reaching a learning criterion, the signs of the stimuli are reversed: the former positive becomes the negative stimulus and vice versa. If an animal improves its performance over reversals, it is ascribed advanced cognitive abilities. Reversal learning has been tested in octopus in a number of studies...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28222640/dynamic-long-leg-casting-fixation-for-treating-12-to-18-month-old-infants-with-developmental-dysplasia-of-the-hip
#2
Zhencun Cai, Lianyong Li, Lijun Zhang, Shijun Ji, Qun Zhao
Objective To evaluate the effect of dynamic long leg casting in paediatric patients with developmental dysplasia of hip (DDH) diagnosed at 12-18 months. Methods The adductor tenotomy, closed reduction, and dynamic long leg casting method was adopted to treat paediatric patients with DDH. The hips were divided into four groups according to the Tonnis radiographic dislocation classification. Groups were also classified according to the baseline acetabular index (AI): 30°-35°, 36°-40°, and > 40°. The outcomes of the reductions were evaluated according to McKay's hip function criteria and Severin's radiological criteria...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28222600/a-rapid-immunoassay-for-detection-of-infliximab-in-whole-blood-using-a-fiber-optic-spr-biosensor
#3
Jiadi Lu, Dragana Spasic, Filip Delport, Thomas Van Stappen, Iris Detrez, Devin Daems, Séverine Vermeire, Ann Gils, Jeroen Lammertyn
Monitoring the concentration of a therapeutic drug antibody, infliximab (IFX), is recommended for enhancing its efficacy in patients with inflammatory bowel disease (IBD). However, IFX concentrations are currently determined in patients' serum/plasma, which requires sample preparation from blood, hence hampering the turnaround time. In this paper, we present a short immunoassay (10 minutes) using fiber-optic SPR (FO-SPR) biosensor for detection of IFX spiked in 100-fold diluted serum, plasma and whole blood...
February 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28220718/the-big-imitator-strikes-again-a-case-report-of-neurosyphilis-in-a-patient-with-newly-diagnosed-hiv
#4
Sévérine de Bruijn, Chris Kenyon, Nicolas Léonard, Erika Vlieghe
BACKGROUND: Neurosyphilis is the result of an infection of the central nervous system caused by the spirochete Treponema pallidum. Its clinical presentation includes meningovascular syphilis, tabes dorsalis, and dementia paralytica, resulting in a wide range of symptoms such as psychosis, Parkinsonism, and depression. CASE REPORT: A 49-year-old male was admitted to a psychiatric hospital because of social withdrawal and self-neglect, indicative of a major depression...
February 21, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28219347/aquaculture-genomics-genetics-and-breeding-in-the-united-states-current-status-challenges-and-priorities-for-future-research
#5
EDITORIAL
Hisham Abdelrahman, Mohamed ElHady, Acacia Alcivar-Warren, Standish Allen, Rafet Al-Tobasei, Lisui Bao, Ben Beck, Harvey Blackburn, Brian Bosworth, John Buchanan, Jesse Chappell, William Daniels, Sheng Dong, Rex Dunham, Evan Durland, Ahmed Elaswad, Marta Gomez-Chiarri, Kamal Gosh, Ximing Guo, Perry Hackett, Terry Hanson, Dennis Hedgecock, Tiffany Howard, Leigh Holland, Molly Jackson, Yulin Jin, Karim Kahlil, Thomas Kocher, Tim Leeds, Ning Li, Lauren Lindsey, Shikai Liu, Zhanjiang Liu, Kyle Martin, Romi Novriadi, Ramjie Odin, Yniv Palti, Eric Peatman, Dina Proestou, Guyu Qin, Benjamin Reading, Caird Rexroad, Steven Roberts, Mohamed Salem, Andrew Severin, Huitong Shi, Craig Shoemaker, Sheila Stiles, Suxu Tan, Kathy F J Tang, Wilawan Thongda, Terrence Tiersch, Joseph Tomasso, Wendy Tri Prabowo, Roger Vallejo, Hein van der Steen, Khoi Vo, Geoff Waldbieser, Hanping Wang, Xiaozhu Wang, Jianhai Xiang, Yujia Yang, Roger Yant, Zihao Yuan, Qifan Zeng, Tao Zhou
Advancing the production efficiency and profitability of aquaculture is dependent upon the ability to utilize a diverse array of genetic resources. The ultimate goals of aquaculture genomics, genetics and breeding research are to enhance aquaculture production efficiency, sustainability, product quality, and profitability in support of the commercial sector and for the benefit of consumers. In order to achieve these goals, it is important to understand the genomic structure and organization of aquaculture species, and their genomic and phenomic variations, as well as the genetic basis of traits and their interrelationships...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28216168/assessment-of-dietary-intake-of-10-intense-sweeteners-by-the-italian-population
#6
Cinzia Le Donne, Lorenza Mistura, Séverine Goscinny, Steven Janvier, Koenraad Cuypers, Laura D'Addezio, Stefania Sette, Giovina Catasta, Marika Ferrari, Raffaela Piccinelli, Joris Van Loco, Aida Turrini
The aim of the present study was to monitor the consumption of foods containing intense sweeteners present on the Italian food market and to investigate whether the Italian general population (aged >3-65+) was at risk for exceeding the Acceptable Daily Intake (ADI) of 10 intense sweeteners. A food label survey was performed in Rome (Italy), using market share data to identify the brands more representative of the market. A sample of 326 foods (table-top sweeteners included), beverages and food supplements containing intense sweeteners was collected and analyzed in order to establish the concentration levels...
February 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28211796/fluence-correction-factor-for-graphite-calorimetry-in-a-clinical-high-energy-carbon-ion-beam
#7
Ana Lourenco, Russell Thomas, Michael Homer, Hugo Bouchard, Severine Rossomme, James Renaud, Tatsuaki Kanai, Gary Royle, Hugo Palmans
The aim of this work is to develop and adapt a formalism to determine absorbed dose to water from graphite calorimetry measurements in carbon-ion beams. Fluence correction factors, <i>k</i><sub>fl</sub>, needed when using a graphite calorimeter to derive dose to water, were determined in a clinical high-energy carbon-ion beam. Measurements were performed in a 290 MeV/n carbon-ion beam with a field size of 11 x 11 cm<sup>2</sup>, without modulation. In order to sample the beam, a plane-parallel Roos ionization chamber was chosen for its small collecting volume in comparison with the field size...
February 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28209624/tofacitinib-for-induction-and-maintenance-therapy-of-crohn-s-disease-results-of-two-phase-iib-randomised-placebo-controlled-trials
#8
Julian Panés, William J Sandborn, Stefan Schreiber, Bruce E Sands, Séverine Vermeire, Geert D'Haens, Remo Panaccione, Peter D R Higgins, Jean-Frederic Colombel, Brian G Feagan, Gary Chan, Michele Moscariello, Wenjin Wang, Wojciech Niezychowski, Amy Marren, Paul Healey, Eric Maller
OBJECTIVE: Tofacitinib is an oral, small-molecule Janus kinase inhibitor that is being investigated for IBD. We evaluated the efficacy and safety of tofacitinib for induction and maintenance treatment in patients with moderate-to-severe Crohn's disease (CD). DESIGN: We conducted two randomised, double-blind, placebo-controlled, multicentre phase IIb studies. Adult patients with moderate-to-severe CD were randomised to receive induction treatment with placebo, tofacitinib 5 or 10 mg twice daily for 8 weeks...
February 16, 2017: Gut
https://www.readbyqxmd.com/read/28209351/an-indirect-stereoselective-analysis-of-nebivolol-glucuronides-in-plasma-by-lc-ms-ms-application-to-clinical-pharmacokinetics
#9
Carolina Pinto Vieira, Daniel Valente Neves, Evandro José Cesarino, Adriana Rocha, Séverine Poirier, Vera Lucia Lanchote
Nebivolol is a racemate of the d-isomer responsible for β1 adrenergic receptor antagonism and the l-isomer responsible for the release of nitric oxide from endothelial cells. Nebivolol is mainly metabolized to nebivolol glucuronide, which also contribute to the nebivolol β1 adrenoreceptor antagonism. This study reports the development and validation of an indirect stereoselective method of analysis of nebivolol glucuronides in plasma by LC-MS/MS. The method was applied to the investigation of stereoselectivity in the glucuronidation of nebivolol in elderly hypertensive patients (n=11) CYP2D6 phenotyped as EM and treated with a single oral dose of the racemate...
February 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28208468/colloidal-polycrystalline-monolayers-under-oscillatory-shear
#10
Ivo Buttinoni, Mathias Steinacher, Hendrik Th Spanke, Juho Pokki, Severin Bahmann, Bradley Nelson, Giuseppe Foffi, Lucio Isa
In this paper we probe the structural response to oscillatory shear deformations of polycrystalline monolayers of soft repulsive colloids with varying area fraction over a broad range of frequencies and amplitudes. The particles are confined at a fluid interface, sheared using a magnetic microdisk, and imaged through optical microscopy. The structural and mechanical response of soft materials is highly dependent on their microstructure. If crystals are well understood and deform through the creation and mobilization of specific defects, the situation is much more complex for disordered jammed materials, where identifying structural motifs defining plastically rearranging regions remains an elusive task...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28196643/radiotherapy-after-sentinel-lymph-node-biopsy-slnb-using-sienna-%C3%A2-super-paramagnetic-iron-oxide-particles-spio-prospective-study-of-tolerance-and-toxicity
#11
Youlia M Kirova, Anne Chilles, Nathalie Ly, Anne Tardivon, Severine Alran
No abstract text is available yet for this article.
February 10, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28196111/epidemiological-assessment-of-the-severity-of-dengue-epidemics-in-french-guiana
#12
Claude Flamand, Camille Fritzell, Christelle Prince, Philippe Abboud, Vanessa Ardillon, Luisiane Carvalho, Magalie Demar, Rachida Boukhari, Martine Papaix-Puech, Narcisse Elenga, Dominique Rousset, Séverine Matheus, Mathieu Nacher, Philippe Quenel, Félix Djossou
BACKGROUND: Dengue fever is the most important arboviral infection that affects humans, particularly in tropical and subtropical regions. Here, we provide the first comprehensive overview of the severity of dengue epidemics in French Guiana. METHODOLOGY/PRINCIPAL FINDINGS: We monitored hospitalized cases between 2008 and 2013. Detailed clinical features and biological parameters were collected on a daily basis from all cases. Among the 1,356 cases, 216 (16%) were classified according to the WHO 2009 classification as dengue without warning signs (WS), 926 (68%) were classified as dengue with WS and 214 (16%) were classified as severe dengue...
2017: PloS One
https://www.readbyqxmd.com/read/28194440/transient-antibody-targeting-of-cd45rc-induces-transplant-tolerance-and-potent-antigen-specific-regulatory-t-cells
#13
Elodie Picarda, Séverine Bézie, Laetitia Boucault, Elodie Autrusseau, Stéphanie Kilens, Dimitri Meistermann, Bernard Martinet, Véronique Daguin, Audrey Donnart, Eric Charpentier, Laurent David, Ignacio Anegon, Carole Guillonneau
Rat and human CD4(+) and CD8(+) Tregs expressing low levels of CD45RC have strong immunoregulatory properties. We describe here that human CD45 isoforms are nonredundant and identify distinct subsets of cells. We show that CD45RC is not expressed by CD4(+) and CD8(+) Foxp3(+) Tregs, while CD45RA/RB/RO are. Transient administration of a monoclonal antibody (mAb) targeting CD45RC in a rat cardiac allotransplantation model induced transplant tolerance associated with inhibition of allogeneic humoral responses but maintained primary and memory responses against cognate antigens...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28193734/mitochondrial-depolarization-in-yeast-zygotes-inhibits-clonal-expansion-of-selfish-mtdna
#14
Iuliia E Karavaeva, Sergey A Golyshev, Ekaterina A Smirnova, Svyatoslav S Sokolov, Fedor F Severin, Dmitry A Knorre
Non-identical copies of mitochondrial DNA (mtDNA) compete with each other within a cell and the result depends on their replication rates. Using yeast Saccharomyces cerevisiae cells as a model, we studied the effects of mitochondrial inhibitors on the competition between wild type mtDNA and mutant selfish mtDNA in heteroplasmic zygotes. We found that decreasing mitochondrial transmembrane potential by adding uncouplers or valinomycin changes the competition outcomes in favor of the wild type mtDNA. This effect was significantly lower in the cells with disrupted mitochondria fission or repressed autophagy-related genes ATG8, ATG32 or ATG33 implying that heteroplasmic zygotes activate mitochondrial degradation in response to the depolarization...
February 13, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28192345/towards-advanced-aeration-modelling-from-blower-to-bubbles-to-bulk
#15
Andreia Amaral, Oliver Schraa, Leiv Rieger, Sylvie Gillot, Yannick Fayolle, Giacomo Bellandi, Youri Amerlinck, Séverine T F C Mortier, Riccardo Gori, Ramiro Neves, Ingmar Nopens
Aeration is an essential component of aerobic biological wastewater treatment and is the largest energy consumer at most water resource recovery facilities. Most modelling studies neglect the inherent complexity of the aeration systems used. Typically, the blowers, air piping, and diffusers are not modelled in detail, completely mixed reactors in a series are used to represent plug-flow reactors, and empirical correlations are used to describe the impact of operating conditions on bubble formation and transport, and oxygen transfer from the bubbles to the bulk liquid...
February 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28192065/vascular-endothelial-growth-factor-a-and-leptin-expression-associated-with-ectopic-proliferation-and-retinal-dysplasia-in-zebrafish-optic-pathway-tumors
#16
Laura E Schultz, Staci L Solin, Wesley A Wierson, Janna M Lovan, Judith Syrkin-Nikolau, Deborah E Lincow, Andrew J Severin, Donald S Sakaguchi, Maura McGrail
In the central nervous system injury induces cellular reprogramming and progenitor proliferation, but the molecular mechanisms that limit regeneration and prevent tumorigenesis are not completely understood. We previously described a zebrafish optic pathway tumor model in which transgenic Tg(flk1:RFP)is18/+ adults develop nonmalignant retinal tumors. Key pathways driving injury-induced glial reprogramming and regeneration contributed to tumor formation. In this study, we examine a time course of proliferation and present new analyses of the Tg(flk1:RFP)is18/+ dysplastic retina and tumor transcriptomes...
February 13, 2017: Zebrafish
https://www.readbyqxmd.com/read/28191818/changes-in-protein-expression-after-treatment-with-ancylostoma-caninum-excretory-secretory-products-in-a-mouse-model-of-colitis
#17
Javier Sotillo, Ivana Ferreira, Jeremy Potriquet, Thewarach Laha, Severine Navarro, Alex Loukas, Jason Mulvenna
Different reports have highlighted the potential use of helminths and their secretions in the treatment of inflammatory bowel disease (IBD) conditions; however, no reports have investigated their effects at a proteome level. Herein, we characterise the protein expression changes that occur in lamina propria (LP) and the intestinal epithelial cells (IEC) of mice with dextran sulfate sodium (DSS)-induced colitis treated with Ancylostoma caninum excretory/secretory (ES) products using a quantitative proteomic approach...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28188172/t-cell-repertoires-in-refractory-coeliac-disease
#18
Julia Ritter, Karin Zimmermann, Korinna Jöhrens, Stefanie Mende, Anke Seegebarth, Britta Siegmund, Steffen Hennig, Kremena Todorova, Andreas Rosenwald, Severin Daum, Michael Hummel, Michael Schumann
OBJECTIVE: Refractory coeliac disease (RCD) is a potentially hazardous complication of coeliac disease (CD). In contrast to RCD type I, RCD type II is a precursor entity of enteropathy-associated T-cell lymphoma (EATL), which is associated with clonally expanding T-cells that are also found in the sequentially developing EATL. Using high-throughput sequencing (HTS), we aimed to establish the small-intestinal T-cell repertoire (TCR) in CD and RCD to unravel the role of distinct T-cell clonotypes in RCD pathogenesis...
February 10, 2017: Gut
https://www.readbyqxmd.com/read/28187238/evolutionary-associations-between-host-traits-and-parasite-load-insights-from-lake-tanganyika-cichlids
#19
Alexander Hayward, Masahito Tsuboi, Christian Owusu, Alexander Kotrschal, Séverine D Buechel, Josefina Zidar, Charlie K Cornwallis, Hanne Løvlie, Niclas Kolm
Parasite diversity and abundance (parasite load) vary greatly among host species. However, the influence of host traits on variation in parasitism remains poorly understood. Comparative studies of parasite load have largely examined measures of parasite species richness, and are predominantly based on records obtained from published data. Consequently, little is known about the relationships between host traits and other aspects of parasite load, such as parasite abundance, prevalence, and aggregation. Meanwhile, understanding of parasite species richness may be clouded by limitations associated with data collation from multiple independent sources...
February 10, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28182569/chronic-obstructive-pulmonary-disease-exacerbation-and-inhaler-device-handling-real-life-assessment-of-2935-patients
#20
Mathieu Molimard, Chantal Raherison, Severine Lignot, Aurelie Balestra, Stephanie Lamarque, Anais Chartier, Cecile Droz-Perroteau, Regis Lassalle, Nicholas Moore, Pierre-Olivier Girodet
Acute exacerbations of chronic obstructive pulmonary disease (COPD) can be prevented by inhaled treatment. Errors in inhaler handling, not taken into account in clinical trials, could impact drug delivery and minimise treatment benefit. We aimed to assess real-life inhaler device handling in COPD patients and its association with COPD exacerbations.To this end, 212 general practitioners and 50 pulmonologists assessed the handling of 3393 devices used for continuous treatment of COPD in 2935 patients. Handling errors were observed in over 50% of handlings, regardless of the device used...
February 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
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