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Enrique Vasco, Celia Polop
The intrinsic compression that arises in polycrystalline thin films under high atomic mobility conditions has been attributed to the insertion or trapping of adatoms inside grain boundaries. This compression is a consequence of the stress field resulting from imperfections in the solid and causes the thermomechanical fatigue that is estimated to be responsible for 90% of mechanical failures in current devices. We directly measure the local distribution of residual intrinsic stress in polycrystalline thin films on nanometer scales, using a pioneering method based on atomic force microscopy...
December 22, 2017: Physical Review Letters
Madangchanok Imchen, Ranjith Kumavath, Debmalya Barh, Vasco Azevedo, Preetam Ghosh, Marcus Viana, Alice R Wattam
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
January 4, 2018: Scientific Reports
Paulo A Rego, Vasco Mascarenhas, Filipe S Oliveira, Pedro C Pinto, Eduardo Sampaio, Jacinto Monteiro
PURPOSE: The purpose of this study was to determine if there were significant differences between patients submitted to hip arthroscopy (HA) and surgical hip dislocation (SHD) to treat femoro-acetabular impingement (FAI), which variables were significantly associated with hip function before surgery and those predictive of the applied functional outcome scale and its variation rate after surgery. METHODS: We selected 198 patients treated with HA or SHD with a mean follow-up of 59 months...
January 3, 2018: International Orthopaedics
Luís Gabriel Antão Barboza, Luís Russo Vieira, Vasco Branco, Neusa Figueiredo, Felix Carvalho, Cristina Carvalho, Lúcia Guilhermino
Microplastics pollution is a global paradigm that raises concern in relation to environmental and human health. This study investigated toxic effects of microplastics and mercury in the European seabass (Dicentrarchus labrax), a marine fish widely used as food for humans. A short-term (96 h) laboratory bioassay was done by exposing juvenile fish to microplastics (0.26 and 0.69 mg/L), mercury (0.010 and 0.016 mg/L) and binary mixtures of the two substances using the same concentrations, through test media...
December 20, 2017: Aquatic Toxicology
Vasco Fonseca, Margarida Brito
No abstract text is available yet for this article.
December 29, 2017: Breast Journal
Catarina Vieira, Nuno Bettencourt, Nuno Ferreira, Mónica Carvalho, Vasco Gama
No abstract text is available yet for this article.
December 19, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Mirela C V de Oliveira, Beatriz Q Camargo, Marcos P V Cunha, Andre Becker Saidenberg, Rodrigo H F Teixeira, Carlos E C Matajira, Luisa Z Moreno, Vasco T M Gomes, Ana P G Christ, Mikaela R F Barbosa, Maria I Z Sato, Andrea M Moreno, Terezinha Knöbl
The presence of free-ranging urban birds is a risk factor for transmitting pathogens to captive animals and humans alike, including Salmonella spp. and diarrheagenic Escherichia coli. Cloacal swabs from 156 synanthropic Great egrets (Ardea alba) and feral pigeons (Columba livia domestica) that inhabit the surroundings of an urban zoo were processed for the identification of Salmonella spp. and diarrheagenic E. coli pathotypes. Bacterial species identification and genotypic characterization employed the matrix-assisted laser desorption ionization-time of flight mass spectrometry and PCR techniques, respectively, comparing their phylogenetic profiles through amplified fragment length polymorphism (AFLP) analysis...
December 20, 2017: Vector Borne and Zoonotic Diseases
Vasco Rodrigues, Nicolas Ruffin, Mabel San-Roman, Philippe Benaroch
Cells of the myeloid lineage, particularly macrophages, serve as primary hosts for HIV in vivo, along with CD4 T lymphocytes. Macrophages are present in virtually every tissue of the organism, including locations with negligible T cell colonization, such as the brain, where HIV-mediated inflammation may lead to pathological sequelae. Moreover, infected macrophages are present in multiple other tissues. Recent evidence obtained in humanized mice and macaque models highlighted the capacity of macrophages to sustain HIV replication in vivo in the absence of T cells...
2017: Frontiers in Immunology
Anne Cybelle Pinto Gomide, Pablo Gomes de Sá, Ana Lidia Queiroz Cavalcante, Thiago de Jesus Sousa, Lucas Gabriel Rodrigues Gomes, Rommel Thiago Juca Ramos, Vasco Azevedo, Artur Silva, Adriana Ribeiro Carneiro Folador
Transcriptome studies on Corynebacterium pseudotuberculosis have recently contributed to the understanding about this microorganism's survival mechanisms in various hostile conditions. The gene expression profile of the C. pseudotuberculosis strain 1002 (Ovis biovar), has revealed genes that are possible candidates responsible for its maintenance in adverse environments, such as those found in the host. In another strain of this bacterium, 258 (Equi biovar), a high temperature condition was simulated, in order to verify which genes are responsible for promoting the persistence of the bacterium in these conditions, since it tolerates temperatures higher than 40°C, despite being a mesophilic bacterium...
December 12, 2017: Gene
Marcus Redü Eslabão, Frederico Schmitt Kremer, Rommel Thiago Juca Ramos, Artur Luiz da Costa da Silva, Vasco Ariston de Carvalho Azevedo, Luciano da Silva Pinto, Éverton Fagonde da Silva, Odir Antônio Dellagostin
A previous study by our group reported the isolation and characterisation of Leptospira borgpetersenii serogroup Ballum strain 4E. This strain is of particular interest because it is highly virulent in the hamster model. In this study, we performed whole-genome shotgun genome sequencing of the strain using the SOLiD sequencing platform. By assembling and analysing the new genome, we were able to identify novel features that have been previously overlooked in genome annotations of other strains belonging to the same species...
February 2018: Memórias do Instituto Oswaldo Cruz
Luís Campos, Vasco Pedro, Francisco Couto
January 1, 2017: Database: the Journal of Biological Databases and Curation
Suresh Vedantham, Samuel Z Goldhaber, Jim A Julian, Susan R Kahn, Michael R Jaff, David J Cohen, Elizabeth Magnuson, Mahmood K Razavi, Anthony J Comerota, Heather L Gornik, Timothy P Murphy, Lawrence Lewis, James R Duncan, Patricia Nieters, Mary C Derfler, Marc Filion, Chu-Shu Gu, Stephen Kee, Joseph Schneider, Nael Saad, Morey Blinder, Stephan Moll, David Sacks, Judith Lin, John Rundback, Mark Garcia, Rahul Razdan, Eric VanderWoude, Vasco Marques, Clive Kearon
BACKGROUND: The post-thrombotic syndrome frequently develops in patients with proximal deep-vein thrombosis despite treatment with anticoagulant therapy. Pharmacomechanical catheter-directed thrombolysis (hereafter "pharmacomechanical thrombolysis") rapidly removes thrombus and is hypothesized to reduce the risk of the post-thrombotic syndrome. METHODS: We randomly assigned 692 patients with acute proximal deep-vein thrombosis to receive either anticoagulation alone (control group) or anticoagulation plus pharmacomechanical thrombolysis (catheter-mediated or device-mediated intrathrombus delivery of recombinant tissue plasminogen activator and thrombus aspiration or maceration, with or without stenting)...
December 7, 2017: New England Journal of Medicine
Mara Thais de Oliveira Silva, Francisco Silvestre Brilhante Bezerra, Rodrigo Barros de Pinho, Karine Rech Begnini, Fabiana Kommling Seixas, Tiago Collares, Ricardo Dias Portela, Vasco Azevedo, Odir Dellagostin, Sibele Borsuk
Caseous lymphadenitis (CLA) is a chronic disease responsible for significant economic losses in sheep and goat breeding worldwide. The treatment for this disease is not effective, and an intense vaccination schedule would be the best control strategy. In this study, we evaluated the associations of rCP09720 or rCP01850 proteins from Corynebacterium pseudotuberculosis with recombinant exotoxin phospholipase D (rPLD) as subunit vaccines in mice. Four experimental groups (10 animals each) were immunized with a sterile 0...
January 2, 2018: Vaccine
Nélia Cunha, Sara Campos, Vasco Serrão
No abstract text is available yet for this article.
November 24, 2017: European Journal of Dermatology: EJD
Andrés Gómez-Palacio, Juan Suaza-Vasco, Sandra Castaño, Omar Triana, Sandra Uribe
INTRODUCTION: Aedes aegypti and Ae. albopictus are recognized vectors of dengue, yellow fever, chikungunya and Zika arboviruses in several countries worldwide. In Colombia, Ae. albopictus geographical distribution has increased to include highly populated cities such as Cali and Medellín. Although this species has been frequently found in urban and semi-urban zones in the country, its role as vector of the dengue fever is poorly known. OBJECTIVE: To identify the presence of Ae...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
Gustavo Pires-Morais, Vasco Gama
No abstract text is available yet for this article.
November 17, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Guilherme Pessoa-Amorim, Jennifer Mancio, Luís Vouga, José Ribeiro, Vasco Gama, Nuno Bettencourt, Ricardo Fontes-Carvalho
INTRODUCTION AND OBJECTIVES: Left atrial dysfunction in aortic stenosis may precede atrial enlargement and predict the occurrence of atrial fibrillation (AF). To test this hypothesis, we assessed left atrial function and determined its impact on the incidence of AF after aortic valve replacement. METHODS: A total of 149 severe aortic stenosis patients (74±8.6 years, 51% men) with no prior AF were assessed using speckle-tracking echocardiography. Left atrial function was evaluated using peak atrial longitudinal strain (PALS), peak atrial contraction strain (PACS), and phasic left atrial volumes...
November 13, 2017: Revista Española de Cardiología
Ofélia Anjos, António J A Santos, Vasco Paixão, Letícia M Estevinho
This study aimed to evaluate the potential of FT-Raman spectroscopy in the prediction of the chemical composition of Lavandula spp. monofloral honey. Partial Least Squares (PLS) regression models were performed for the quantitative estimation and the results were correlated with those obtained using reference methods. Good calibration models were obtained for electrical conductivity, ash, total acidity, pH, reducing sugars, hydroxymethylfurfural (HMF), proline, diastase index, apparent sucrose, total flavonoids content and total phenol content...
February 1, 2018: Talanta
Arlindo R Ferreira, Ana Palha, Lurdes Correia, Pedro Filipe, Vasco Rodrigues, Ana Miranda, Rosário André, João Fernandes, Joaquim Gouveia, José L Passos-Coelho, António Moreira, Margarida Brito, Joana Ribeiro, Otto Metzger-Filho, Nancy U Lin, Luís Costa, Inês Vaz-Luis
BACKGROUND: Since 2005, aromatase inhibitors (AIs) have been the adjuvant treatment of choice for postmenopausal women with early breast cancer (BC). In this study we characterize the adoption of AIs in Portugal, variables associated with treatment administration, and compare its effectiveness (either in monotherapy or sequential therapy) to tamoxifen monotherapy (TAM). PATIENTS AND METHODS: This was a retrospective cohort study that included postmenopausal women with stage I-III hormone receptor (HR) positive BC diagnosed from 2006 to 2008 and treated with adjuvant endocrine therapy in four participating institutions...
November 10, 2017: Breast: Official Journal of the European Society of Mastology
Diego López-Otero, João Gonçalves Almeida, Luis Nombela Franco, Pilar Jiménez-Quevedo, Vasco Gama Ribeiro, Ramiro Trillo-Nouche
No abstract text is available yet for this article.
November 7, 2017: Revista Española de Cardiología
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