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Vincent A

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https://www.readbyqxmd.com/read/28931060/isolated-positive-anti-ss-b-autoantibodies-are-not-related-to-clinical-features-of-systemic-autoimmune-diseases-results-from-a-routine-population-survey
#1
Sabine Jardel, Nicole Fabien, Arnaud Hot, Sandra Vukusic, Jacques Tebib, Vincent Cottin, Pascal Sève, Maurice Laville, Alexandre Belot, Isabelle Durieu, Lorna Garnier, Frédéric Coutant, Quitterie Reynaud, Jean Christophe Lega
OBJECTIVE: To assess in clinical practice the frequency and diagnosis associated with the SS-B-positive/SS-A negative autoantibody profile. METHODS: We analyzed a one-year consecutive population of 624 patients referred by clinicians to the immunology laboratory to investigate anti-SS-A and/or anti-SS-B autoantibodies, who were detected using luminex technology. Data were analyzed for patients with isolated anti-SS-B autoantibodies. The clinical characteristics and diagnosis of connective tissue diseases (CTD) were retrieved according to the international criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28930977/fourier-based-diffraction-analysis-of-live-caenorhabditis-elegans
#2
Jenny Magnes, Harold M Hastings, Kathleen M Raley-Susman, Clara Alivisatos, Adam Warner, Miranda Hulsey-Vincent
This manuscript describes how to classify nematodes using temporal far-field diffraction signatures. A single C. elegans is suspended in a water column inside an optical cuvette. A 632 nm continuous wave HeNe laser is directed through the cuvette using front surface mirrors. A significant distance of at least 20-30 cm traveled after the light passes through the cuvette ensures a useful far-field (Fraunhofer) diffraction pattern. The diffraction pattern changes in real time as the nematode swims within the laser beam...
September 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930916/peripheral-muscle-near-infrared-spectroscopy-nirs-variables-are-altered-early-in-septic-shock
#3
Diego Orbegozo, Fuhong Su, Keliang Xie, Lokmane Rahmania, Fabio Silvio Taccone, Daniel De Backer, Jean-Louis Vincent, Jacques Creteur
BACKGROUND: Non-invasive evaluation of muscle perfusion using near infrared spectroscopy (NIRS) coupled with a vascular occlusion test (VOT) may provide an early and simple marker of altered perfusion and microcirculatory function in sepsis. OBJECTIVE: To compare the time-course of NIRS-derived variables with systemic measures of perfusion in an experimental model of peritonitis. METHODS: Peritonitis was induced in eight anesthetized, mechanically ventilated, adult sheep (24-34 Kg), by injecting autologous feces into the peritoneal cavity...
September 19, 2017: Shock
https://www.readbyqxmd.com/read/28930491/fetal-and-infant-growth-patterns-and-risk-of-lower-lung-function-and-asthma-the-generation-r-study
#4
Herman T den Dekker, Vincent W V Jaddoe, Irwin K Reiss, Johan C de Jongste, Liesbeth Duijts
BACKGROUND: Children with lower birth weight are at increased risk of asthma symptoms. We examined associations of fetal and infant growth with childhood lung function and asthma. METHODS: This study was embedded in a population-based prospective cohort study among 5,635children. Growth was estimated by repeated ultrasounds in 2nd and 3th trimester, and measured at birth and at 3, 6 and 12 months. At age 10 years, spirometry was performed and asthma was assessed by parental questionnaire...
September 20, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28930459/interfacial-insights-into-a-carbon-capture-system-co2-uptake-to-an-aqueous-monoethanolamine-surface
#5
Laura E McWilliams, Nicholas Valley, Nina Vincent, Geraldine L Richmond
Monoethanolamine (MEA) is a benchmark scrubber for CO2 gas emissions reductions. Preliminary studies have indicated surface monoethanolamine could influence the greater chemistry of CO2 uptake. MEA is known to be surface active and orients at aqueous surfaces such that its nitrogen lone pair electrons are pointing toward the gas phase. This MEA orientation has the potential to facilitate CO2 surface chemistry, however a thorough description of the chemistry at play during this important carbon capture reaction is lacking...
September 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28930452/electrowetting-on-immersed-conducting-hydrogel
#6
Caroline Duc, Alexis Vlandas, George G Malliaras, Vincent Senez
Conducting polymers demonstrate an interesting ability to change their wettability at ultra-low voltage (<1V). While the conducting hydrogel poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is increasingly used as an interface with biology partly thanks to its mechanical properties, little is known about the electrical control of its wettability. We rely on the captive bubble technique to study this hydrogel property in relevant conditions (fully immerged) We here report that the wettability variations of PEDOT:PSS are driven by an electrowetting phenomenon in contrast to other conducting polymers which are thought to undergo wettability changes due to oxido-reduction reactions...
September 20, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28930260/association-between-auricular-signals-and-the-risk-factors-of-metabolic-syndrome
#7
Lorna Kwai Ping Suen, Chao Hsing Yeh, Simon Kai Wang Yeung, Jojo Yee Mei Kwan, Hon Fat Wong, David Chan, Alice Siu Ping Cheung, Vincent Tok Fai Yeung
Objective: This study aims to determine the association between auricular signals and the risk factors of metabolic syndrome (MS). Methods: A case-control study with an equal number of cases and controls matched by age group and gender was conducted. A total of 204 participants were recruited. Patients were verified as having MS based on the International Diabetes Federation (IDF) criteria. Auricular assessment was conducted in the following sequence: visual inspection, electrical skin resistance test (ESRT), and pressure pain test (PPT)...
June 25, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28930136/methanol-extract-from-anogeissus-leiocarpus-dc-guill-et-perr-combretaceae-stem-bark-quenches-the-quorum-sensing-of-pseudomonas-aeruginosa-pao1
#8
Vincent Ouedraogo, Martin Kiendrebeogo
Background: Due to its extensive arsenal of virulence factors and inherent resistance to antibiotics, Pseudomonas aeruginosa is a threat particularly in immunocompromised patients. Considering the central role of quorum sensing in the production of virulence factors, inhibition of bacterial communication mechanism constitute an opportunity to attenuate pathogenicity of bacteria resistant to available antibiotics. Our study aimed to assess the anti-quorum sensing activity of Anogeissus leiocarpus, traditionally used in Burkina Faso, for the treatment of infected burn wounds...
October 6, 2016: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28930016/mycobacterium-orygis-lymphadenitis-in-new-york-usa
#9
Luis A Marcos, Eric D Spitzer, Rahul Mahapatra, Yupo Ma, Tanya A Halse, Joseph Shea, Michelle Isabelle, Pascal Lapierre, Vincent E Escuyer
We report a case of lymphadenitis caused by Mycobacterium orygis in an immunocompetent person in Stony Brook, New York, USA. Initial real-time PCR assay failed to provide a final subspecies identification within the M. tuberculosis complex, but whole-genome sequencing characterized the isolate as M. orygis.
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28929951/the-fate-of-inhaled-nanoparticles-detection-and-measurement-by-enhanced-dark-field-microscopy
#10
Robert R Mercer, James F Scabilloni, Liying Wang, Lori A Battelli, James M Antonini, Jenny R Roberts, Yong Qian, Jennifer D Sisler, Vincent Castranova, Dale W Porter, Ann F Hubbs
Assessing the potential health risks for newly developed nanoparticles poses a significant challenge. Nanometer-sized particles are not generally detectable with the light microscope. Electron microscopy typically requires high-level doses, above the physiologic range, for particle examination in tissues. Enhanced dark-field microscopy (EDM) is an adaption of the light microscope that images scattered light. Nanoparticles scatter light with high efficiency while normal tissues do not. EDM has the potential to identify the critical target sites for nanoparticle deposition and injury in the lungs and other organs...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28929244/analyzing-polymeric-matrix-for-fabrication-of-a-biodegradable-microneedle-array-to-enhance-transdermal-delivery
#11
Kuo-Yuan Hwa, Vincent H S Chang, Yao-Yi Cheng, Yue-Da Wang, Pey-Shynan Jan, Boopathi Subramani, Min-Ju Wu, Bo-Kai Wang
Traditional drug delivery systems, using invasive, transdermal, and oral routes, are limited by various factors, such as the digestive system environment, skin protection, and sensory nerve stimulation. To improve the drug delivery system, we fabricated a polysaccharide-based, dissolvable microneedle-based array, which combines the advantages of both invasive and transdermal delivery systems, and promises to be an innovative solution for minimally invasive drug delivery. In this study, we designed a reusable aluminum mold that greatly improved the efficiency and convenience of microneedle fabrication...
September 19, 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28929007/the-postcranial-skeleton-of-boreogomphodon-cynodontia-traversodontidae-from-the-upper-triassic-of-north-carolina-usa-and-the-comparison-with-other-traversodontids
#12
Jun Liu, Vincent P Schneider, Paul E Olsen
Postcranial remains of Boreogomphodon from the Upper Triassic of North Carolina are described and compared to those of other known traversodontid cynodonts. The postcranial skeleton of Boreogomphodon is characterized by four sacral ribs, simple ribs lacking costal plates, the extension of the scapular neck below the acromion process, a short scapular facet on the procoracoid, a concave anterior margin of the procoracoid, humerus entepicondyle with smooth corner, and the presence of a fifth distal carpal. Four types of ribs are identified among traversodontids: 'normal' form, tubercular rib, costal plate, and Y-shaped rib...
2017: PeerJ
https://www.readbyqxmd.com/read/28927475/impact-of-discontinuing-contact-precautions-for-mrsa-and-esble-in-an-intensive-care-unit-a-prospective-noninferiority-before-and-after-study
#13
Laurie Renaudin, Mathieu Llorens, Christophe Goetz, Sébastien Gette, Vincente Citro, Sylvia Poulain, Marie-Laure Vanson, Jocelyne Sellies
OBJECTIVE To compare incidence densities of methicillin-resistant Staphylococcus aureus (MRSA) or extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBLE) acquisition in the intensive care unit (ICU) before and after discontinuation of contact precautions (CP) and application of standard precautions (SP). DESIGN Prospective noninferiority before-and-after study comparing 2 periods: January 1, 2012, to January 31, 2014 (the CP period) and February 1, 2014, to February 29, 2016 (the SP period). SETTING A 16-bed polyvalent ICU in France with only single-bed rooms with dedicated equipment and reusable medical devices...
September 20, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28927421/a-25-gene-classifier-predicts-overall-survival-in-resectable-pancreatic-cancer
#14
David J Birnbaum, Pascal Finetti, Alexia Lopresti, Marine Gilabert, Flora Poizat, Jean-Luc Raoul, Jean-Robert Delpero, Vincent Moutardier, Daniel Birnbaum, Emilie Mamessier, François Bertucci
BACKGROUND: Pancreatic carcinoma is one of the most lethal human cancers. In patients with resectable tumors, surgery followed by adjuvant chemotherapy is the only curative treatment. However, the 5-year survival is 20%. Because of a strong metastatic propensity, neoadjuvant chemotherapy is being tested in randomized clinical trials. In this context, improving the selection of patients for immediate surgery or neoadjuvant chemotherapy is crucial, and high-throughput molecular analyses may help; the present study aims to address this...
September 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28927420/erratum-to-composition-of-anopheles-mosquitoes-their-blood-meal-hosts-and-plasmodium-falciparum-infection-rates-in-three-islands-with-disparate-bed-net-coverage-in-lake-victoria-kenya
#15
Edwin Ogola, Jandouwe Villinger, Danspaid Mabuka, David Omondi, Benedict Orindi, James Mutunga, Vincent Owino, Daniel K Masiga
After publication of the article [1], it has been brought to our attention that a funding acknowledgement has been omitted from the original article. The authors would like to include the following, "The study was undertaken as part of the Target Malaria consortium, which receives core funding from the Bill & Melinda Gates Foundation & from the Open Philanthropy Project Fund, an advised fund of Silicon Valley Community Foundation."
September 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28927234/metabolic-profiling-of-central-nervous-system-disease-in-trypanosoma-brucei-rhodesiense-infection
#16
Sabrina D Lamour, Vincent P Alibu, Elaine Holmes, Jeremy M Sternberg
Background: The progression of Human African Trypanosomiasis from the early hemolymphatic stage to the late meningoencephalitic stage is of critical diagnostic importance as it determines the choice of potentially toxic drug regimens. Current diagnostic criteria involving analysis of cerebrospinal fluid (CSF) for parasites and/or pleiocytosis are sensitive, but recent evidence suggests that specificity may be poor. Methods: We used an untargeted global metabolic profiling approach for the discovery of novel candidate stage diagnostic markers in CSF from Trypanosoma brucei rhodesiense patients using 1H nuclear magnetic resonance (NMR) spectroscopy...
September 12, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28926825/fetal-growth-and-placental-growth-factor-umbilical-cord-blood-levels
#17
Zoe A Broere-Brown, Sarah Schalekamp-Timmermans, Vincent W V Jaddoe, Eric A P Steegers
OBJECTIVE: We assessed whether umbilical cord blood placental growth factor (PlGF) levels at delivery are associated with fetal growth. METHODS: From a prospective population-based cohort study we included 3,461 live singleton births. Fetal growth was assessed by birth weight, fetal growth pattern, and fetal growth restriction (FGR; decrease in growth between the second trimester and birth of ≥40 percentiles). In all analyses the highest PlGF multiple of the median (MoM) quintile was used as the reference category...
September 20, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28926402/reversing-hiv-latency-via-sphingosine-1-phosphate-receptor-1-signaling
#18
Charline Duquenne, Sandrine Gimenez, Adeline Guigues, Benjamin Viala, Caroline Boulouis, Clément Mettling, Damien Maurel, Noëlie Campos, Etienne Doumazane, Laetitia Comps-Agrar, Jamal Tazi, Laurent Prézeau, Pierre Corbeau, Vincent François
OBJECTIVE: In this study, we looked for a new family of latency reversing agents. DESIGN: We searched for G protein-coupled receptors (GPCR) coexpressed with CCR5 in primary CD4+ T cells that activate infected cells and boost HIV production. METHODS: GPCR coexpression was unveiled by RT-PCR. We used FRET to analyze the dimerization with CCR5 of the expressed GPCR. Viral entry was measured by flow cytometry, reverse transcription by quantitative PCR, NFkB translocation by immunofluorescence, LTR activation using a gene reporter assay, and viral production by p24 quantification...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28925901/plant-cell-wall-proteomics-as-a-strategy-to-reveal-candidate-proteins-involved-in-extracellular-lipid-metabolism
#19
Adélaïde Jacq, Vincent Burlat, Elisabeth Jamet
Plant cell walls are composite structures surrounding cells and involved in both mechanical support and perception of their environment. They are mainly composed of polysaccharides (90-95% of their mass) and proteins (5-10%). The cell wall proteins (CWPs) contribute to the arrangements and modifications of polymer networks and to cell-to-cell communication. The structure and composition of cell walls are not uniform in the whole plants, but rather specialized in different cell types to fulfil different functions...
September 18, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28925713/simple-and-efficient-fabrication-of-mayenite-electrides-from-a-solution-derived-precursor
#20
Dong Jiang, Zeyu Zhao, Shenglong Mu, Vincent Phaneuf, Jianhua Tong
Mayenite (12CaO·7Al2O3, C12A7) electride with an anti-zeolite nanoporous structure has attracted intense attention due to its versatile promising application potentials. However, the synthesis difficulty because of extremely harsh conditions (e.g., reduction in sealed calcium or titanium vapor) significantly obstructs its realistic applications. In this work, we employed a simple, efficient, and cost-effective route for synthesizing mayenite electrides (C12A7:e(-)) in both powder and dense ceramic. C12A7:e(-) powders with efficient electron doping (3...
September 19, 2017: Inorganic Chemistry
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