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https://www.readbyqxmd.com/read/29351467/from-ionic-to-cellular-variability-in-human-atrial-myocytes-an-integrative-computational-and-experimental-study
#1
Anna Muszkiewicz, Xing Liu, Alfonso Bueno-Orovio, Brodie A J Lawson, Kevin Burrage, Barbara Casadei, Blanca Rodriguez
Variability refers to differences in physiological function between individuals, which may translate into different disease susceptibility and treatment efficacy. Experiments in human cardiomyocytes face wide variability and restricted tissue access; under these conditions computational models are a useful complementary tool. We conducted a computational and experimental investigation in cardiomyocytes isolated from samples of the right atrial appendage of patients undergoing cardiac surgery to evaluate the impact of variability in action potentials (APs) and sub-cellular ionic densities on calcium transient dynamics...
December 22, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29350648/imaging-of-metabolic-bone-disease
#2
Maria Mattera, Alfonso Reginelli, Silvia Bartollino, Claudio Russo, Antonio Barile, Domenico Albano, Giovanni Mauri, Carmelo Messina, Salvatore Cappabianca, Giuseppe Guglielmi
Osteoporosis is the most important metabolic bone disease, with a wide distribution among the elderly. It is characterized by low bone mass and micro architectural deterioration of bone tissue, leading to enhanced bone fragility and a consequent increase in fracture risk. Identify bone weakening with an appropriate and accurate use of diagnostic imaging is of critical importance in the diagnosis and follow-up of osteoporotic patients. The aim of this review is to evaluate the detection rates of the different imaging modalities in the evaluation of bone strength, in the assessment of fracture risk and in the management of fragility fractures...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350636/imaging-of-pediatric-foot-disorders
#3
Alfonso Reginelli, Anna Russo, Fabrizio Turrizziani, Roberto Picascia, Elisa Micheletti, Vittoria Galeazzi, Umberto Russo, Assunta Sica, Fabrizio Cioce, Alberto Aliprandi, Andrea Giovagnoni, Salvatore Cappabianca
Infants and children undergo imaging studies to evaluate a wide variety of congenital and acquired disorders. Imaging protocols have to consider the patient's comfort, level of anxiety, and smaller size. The first imaging study is usually made with plain radiographs. The routine radiographic examination of the foot includes the anteroposterior (AP), lateral, and oblique projections. Magnetic Resonance Imaging (RMI) provides excellent anatomic detail of cartilage, vasculature and soft tissue thanks to superior soft tissue contrast and spatial resolution, so is valuable in many cases...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350634/mri-of-popliteo-meniscal-fasciculi-of-the-knee-a-pictorial-review
#4
Marcello Zappia, Alfonso Reginelli, Vito Chianca, Michela Carfora, Francesco Di Pietto, Germano Iannella, Pier Paolo Mariani, Mariano Di Salvatore, Silvia Bartollino, Nicola Maggialetti, Salvatore Cappabianca, Luca Brunese
The popliteomeniscal fascicules (PMFs) provide the attachment of the lateral meniscus to the popliteus musculotendinous region, forming the floor and the roof the popliteal hiatus. In the second half of 1900's, some anatomic studies claim the important function of the PMF as stabilizers of the lateral meniscus; these anatomical structures work in conjunction with the popliteus musculotendinous unit to prevent excessive lateral meniscal movement and possible meniscus subluxation. A correct diagnosis of the PMFs pathology is crucial to establish the suitable surgical treatment for each patient...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350633/diagnostic-imaging-and-intervention-of-the-musculoskeletal-system-state-of-the-art
#5
Antonio Barile, Alfonso Reginelli, Massimo De Filippo, Luca Brunese, Carlo Masciocchi
The study of the musculoskeletal system has always been one of the most important application for diagnostic imaging in radiology (1-4).
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29348482/egfr-activation-triggers-cellular-hypertrophy-and-lysosomal-disease-in-naglu-depleted-cardiomyoblasts-mimicking-the-hallmarks-of-mucopolysaccharidosis-iiib
#6
Valeria De Pasquale, Antonio Pezone, Patrizia Sarogni, Alfonso Tramontano, Gabriele Giacomo Schiattarella, Vittorio Enrico Avvedimento, Simona Paladino, Luigi Michele Pavone
Mucopolysaccharidosis (MPS) IIIB is an inherited lysosomal storage disease caused by the deficiency of the enzyme α-N-acetylglucosaminidase (NAGLU) required for heparan sulfate (HS) degradation. The defective lysosomal clearance of undigested HS results in dysfunction of multiple tissues and organs. We recently demonstrated that the murine model of MPS IIIB develops cardiac disease, valvular abnormalities, and ultimately heart failure. To address the molecular mechanisms governing cardiac dysfunctions in MPS IIIB, we generated a model of the disease by silencing NAGLU gene expression in H9C2 rat cardiomyoblasts...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29347610/relaxation-time-of-the-global-order-parameter-on-multiplex-networks-the-role-of-interlayer-coupling-in-kuramoto-oscillators
#7
Alfonso Allen-Perkins, Thiago Albuquerque de Assis, Juan Manuel Pastor, Roberto F S Andrade
This work considers the time scales associated with the global order parameter and the interlayer synchronization of coupled Kuramoto oscillators on multiplexes. For two-layer multiplexes with an initially high degree of synchronization in each layer, the difference between the average phases in each layer is analyzed from two different perspectives: the spectral analysis and the nonlinear Kuramoto model. Both viewpoints confirm that the prior time scales are inversely proportional to the interlayer coupling strength...
October 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346148/vertical-profunda-artery-perforator-flap-for-plantar-foot-wound-closure-a-new-application
#8
Allyson R Alfonso, James L Mayo, Vishal K Sharma, Robert J Allen, Ernest S Chiu
BACKGROUND: Plantar foot reconstruction requires special consideration of both form and function. There are several fasciocutaneous flap options, each with indications and reservations. CASE STUDY: This case presents a new application of the vertical profunda artery perforator flap for definitive closure of a neuropathic foot ulcer in a young woman with spina bifida. The postoperative course was uneventful, and the flap survived completely. The surgical and donor sites were without wound recurrence at 5-month follow-up...
February 2018: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29346126/complete-revascularization-for-patients-with-st-segment-elevation-myocardial-infarction-and-multivessel-coronary-artery-disease-a-meta-analysis-of-randomized-trials
#9
Gani Bajraktari, Haki Jashari, Pranvera Ibrahimi, Fernando Alfonso, Fisnik Jashari, Gjin Ndrepepa, Shpend Elezi, Michael Y Henein
INTRODUCTION: Despite the recent findings in randomized clinical trials (RCTs) with limited sample sizes and the updates in clinical guidelines, the current available data for the complete revascularization (CR) in hemodynamically stable patients with ST-segment elevation myocardial infarction (STEMI) at the time of primary percutaneous coronary intervention (PCI) are still contradictory. AIM: The aim of this meta-analysis of the existing RCTs was to assess the efficacy of the CR versus revascularization of infarct-related artery (IRA) only during primary PCI in patients with STEMI and multivessel disease (MVD)...
January 17, 2018: Coronary Artery Disease
https://www.readbyqxmd.com/read/29345585/mandatory-reporting-of-coronary-artery-calcifications-incidentally-noted-on-chest-multi-detector-computed-tomography-a-multicentre-experience
#10
Salvatore Cappabianca, Maria Paola Belfiore, Alfonso Reginelli, Raffaella Capasso, Alessandra Del Prete, Mario Petrillo, Paola Mascia, Claudia Rossi, Francesco Romano, Massimo De Filippo, Michele Scialpi, Felice Gragnano, Paolo Calabro, Giuseppe Belfiore, Luca Brunese, Roberto Grassi, Antonio Rotondo
BACKGROUND Coronary artery calcifications (CACs) are associated with coronary atherosclerosis and cardiovascular (CV) events. In "non-cardiovascular" settings, CACs can be easily detected on chest multi-detector computed tomography (MDCT). Their evaluation may help to better stratify CV risk in the general population, especially for primary prevention. AIMS We retrospectively evaluated the relationship between CAC distribution and CV risk, determined by Framingham Risk Score (FRS), in a cohort of patients who underwent chest MDCT performed for several clinical indications...
January 16, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29345359/pdz-proteins-are-expressed-and-regulated-in-antigen-presenting-cells-and-are-targets-of-influenza-a-virus
#11
Dante Barreda, Marisa Sánchez-Galindo, Jessica López-Flores, Karen E Nava-Castro, Karen Bobadilla, Alfonso Salgado-Aguayo, Teresa Santos-Mendoza
In this work, we identified the expression, regulation, and viral targeting of Scribble and Dlg1 in antigen-presenting cells. Scribble and Dlg1 belong to the family of PDZ (postsynaptic density (PSD95), disc large (Dlg), and zonula occludens (ZO-1)) proteins involved in cell polarity. The relevance of PDZ proteins in cellular functions is reinforced by the fact that many viruses interfere with host PDZ-dependent interactions affecting cellular mechanisms thus favoring viral replication. The functions of Scribble and Dlg have been widely studied in polarized cells such as epithelial and neuron cells...
December 27, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29343741/species-distribution-modelling-contrasting-presence-only-models-with-plot-abundance-data
#12
Vitor H F Gomes, Stéphanie D IJff, Niels Raes, Iêda Leão Amaral, Rafael P Salomão, Luiz de Souza Coelho, Francisca Dionízia de Almeida Matos, Carolina V Castilho, Diogenes de Andrade Lima Filho, Dairon Cárdenas López, Juan Ernesto Guevara, William E Magnusson, Oliver L Phillips, Florian Wittmann, Marcelo de Jesus Veiga Carim, Maria Pires Martins, Mariana Victória Irume, Daniel Sabatier, Jean-François Molino, Olaf S Bánki, José Renan da Silva Guimarães, Nigel C A Pitman, Maria Teresa Fernandez Piedade, Abel Monteagudo Mendoza, Bruno Garcia Luize, Eduardo Martins Venticinque, Evlyn Márcia Moraes de Leão Novo, Percy Núñez Vargas, Thiago Sanna Freire Silva, Angelo Gilberto Manzatto, John Terborgh, Neidiane Farias Costa Reis, Juan Carlos Montero, Katia Regina Casula, Beatriz S Marimon, Ben-Hur Marimon, Euridice N Honorio Coronado, Ted R Feldpausch, Alvaro Duque, Charles Eugene Zartman, Nicolás Castaño Arboleda, Timothy J Killeen, Bonifacio Mostacedo, Rodolfo Vasquez, Jochen Schöngart, Rafael L Assis, Marcelo Brilhante Medeiros, Marcelo Fragomeni Simon, Ana Andrade, William F Laurance, José Luís Camargo, Layon O Demarchi, Susan G W Laurance, Emanuelle de Sousa Farias, Henrique Eduardo Mendonça Nascimento, Juan David Cardenas Revilla, Adriano Quaresma, Flavia R C Costa, Ima Célia Guimarães Vieira, Bruno Barçante Ladvocat Cintra, Hernán Castellanos, Roel Brienen, Pablo R Stevenson, Yuri Feitosa, Joost F Duivenvoorden, Gerardo A Aymard C, Hugo F Mogollón, Natalia Targhetta, James A Comiskey, Alberto Vicentini, Aline Lopes, Gabriel Damasco, Nállarett Dávila, Roosevelt García-Villacorta, Carolina Levis, Juliana Schietti, Priscila Souza, Thaise Emilio, Alfonso Alonso, David Neill, Francisco Dallmeier, Leandro Valle Ferreira, Alejandro Araujo-Murakami, Daniel Praia, Dário Dantas do Amaral, Fernanda Antunes Carvalho, Fernanda Coelho de Souza, Kenneth Feeley, Luzmila Arroyo, Marcelo Petratti Pansonato, Rogerio Gribel, Boris Villa, Juan Carlos Licona, Paul V A Fine, Carlos Cerón, Chris Baraloto, Eliana M Jimenez, Juliana Stropp, Julien Engel, Marcos Silveira, Maria Cristina Peñuela Mora, Pascal Petronelli, Paul Maas, Raquel Thomas-Caesar, Terry W Henkel, Doug Daly, Marcos Ríos Paredes, Tim R Baker, Alfredo Fuentes, Carlos A Peres, Jerome Chave, Jose Luis Marcelo Pena, Kyle G Dexter, Miles R Silman, Peter Møller Jørgensen, Toby Pennington, Anthony Di Fiore, Fernando Cornejo Valverde, Juan Fernando Phillips, Gonzalo Rivas-Torres, Patricio von Hildebrand, Tinde R van Andel, Ademir R Ruschel, Adriana Prieto, Agustín Rudas, Bruce Hoffman, César I A Vela, Edelcilio Marques Barbosa, Egleé L Zent, George Pepe Gallardo Gonzales, Hilda Paulette Dávila Doza, Ires Paula de Andrade Miranda, Jean-Louis Guillaumet, Linder Felipe Mozombite Pinto, Luiz Carlos de Matos Bonates, Natalino Silva, Ricardo Zárate Gómez, Stanford Zent, Therany Gonzales, Vincent A Vos, Yadvinder Malhi, Alexandre A Oliveira, Angela Cano, Bianca Weiss Albuquerque, Corine Vriesendorp, Diego Felipe Correa, Emilio Vilanova Torre, Geertje van der Heijden, Hirma Ramirez-Angulo, José Ferreira Ramos, Kenneth R Young, Maira Rocha, Marcelo Trindade Nascimento, Maria Natalia Umaña Medina, Milton Tirado, Ophelia Wang, Rodrigo Sierra, Armando Torres-Lezama, Casimiro Mendoza, Cid Ferreira, Cláudia Baider, Daniel Villarroel, Henrik Balslev, Italo Mesones, Ligia Estela Urrego Giraldo, Luisa Fernanda Casas, Manuel Augusto Ahuite Reategui, Reynaldo Linares-Palomino, Roderick Zagt, Sasha Cárdenas, William Farfan-Rios, Adeilza Felipe Sampaio, Daniela Pauletto, Elvis H Valderrama Sandoval, Freddy Ramirez Arevalo, Isau Huamantupa-Chuquimaco, Karina Garcia-Cabrera, Lionel Hernandez, Luis Valenzuela Gamarra, Miguel N Alexiades, Susamar Pansini, Walter Palacios Cuenca, William Milliken, Joana Ricardo, Gabriela Lopez-Gonzalez, Edwin Pos, Hans Ter Steege
Species distribution models (SDMs) are widely used in ecology and conservation. Presence-only SDMs such as MaxEnt frequently use natural history collections (NHCs) as occurrence data, given their huge numbers and accessibility. NHCs are often spatially biased which may generate inaccuracies in SDMs. Here, we test how the distribution of NHCs and MaxEnt predictions relates to a spatial abundance model, based on a large plot dataset for Amazonian tree species, using inverse distance weighting (IDW). We also propose a new pipeline to deal with inconsistencies in NHCs and to limit the area of occupancy of the species...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343044/bronchial-blocker-positioning-learning-curve-and-confidence-in-its-use
#13
Marco Rispoli, Gianluca Zani, Federico Bizzarri, Moana R Nespoli, Dario M Mattiacci, Vanni Agnoletti, Alfonso Fiorelli, Antonio Corcione, Salvatore Buono
BACKGROUND: Despite simple and safe to use and cheap, EZ Blocker remains underused probably because it requires particular skills in recognizing airway and in using fiber- bronchoscopy to check the exact position of their cuffs. Thus, we planned an education training program on the use of EZB for novices in anaesthesia and evaluated the number of procedures required for the acquisition of the skills of this technique. METHODS: The educational training program included three different phases as follows...
January 17, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29340586/data-sharing
#14
Fernando Alfonso
No abstract text is available yet for this article.
May 7, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29340540/toxic-epidermal-necrolysis-a-paradigm-of-critical-illness
#15
Alfonso Estrella-Alonso, José Antonio Aramburu, Mercedes Yolanda González-Ruiz, Lucía Cachafeiro, Manuel Sánchez Sánchez, José A Lorente
Toxic epidermal necrolysis is an adverse immunological skin reaction secondary in most cases to the administration of a drug. Toxic epidermal necrolysis, Stevens-Johnson syndrome, and multiform exudative erythema are part of the same disease spectrum. The mortality rate from toxic epidermal necrolysis is approximately 30%. The pathophysiology of toxic epidermal necrolysis is similar in many respects to that of superficial skin burns. Mucosal involvement of the ocular and genital epithelium is associated with serious sequelae if the condition is not treated early...
October 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29339496/thymic-stromal-lymphopoietin-drives-the-development-of-il-13-th2-cells
#16
Sotaro Ochiai, Ferdinand Jagot, Ryan L Kyle, Evelyn Hyde, Ruby F White, Melanie Prout, Alfonso J Schmidt, Hidehiro Yamane, Olivier Lamiable, Graham Le Gros, Franca Ronchese
T helper 2 (Th2) cells are pivotal in the development of allergy. Allergen exposure primes IL-4+ Th2 cells in lymph node, but production of effector cytokines including IL-5 and IL-13 is thought to require additional signals from antigen and the environment. Here we report that a substantial proportion of naive CD4+ T cells in spleen and lymph node express receptors for the epithelium-derived inflammatory cytokine thymic stromal lymphopoietin (TSLP). Culture of naive CD4+ T cells in anti-(a)CD3, aCD28, and TSLP-supplemented Th2 conditions enabled the development of a unique population of IL-13-single positive (IL-13-SP) CD4+ T cells; TSLP and Th2 conditions were both required for their development...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339381/cholecystokinin-is-involved-in-triglyceride-fatty-acid-uptake-by-rat-adipose-tissue
#17
Adrian Plaza, Beatriz Merino, Victoria Cano, Gema Domínguez, Javier Pérez-Castells, Maria S Fernandez-Alfonso, Coralie Sengenès, Julie A Chowen, Mariano Ruiz-Gayo
The incorporation of plasma triglyceride (TG) fatty acids to white adipose tissue (WAT) depends on lipoprotein lipase (LPL), which is regulated by angiopoietin-like protein-4 (ANGPTL-4), an unfolding molecular chaperone that converts active LPL dimers into inactive monomers. The production of ANGPTL-4 is promoted by fasting and repressed by feeding. We hypothesized that the postprandial hormone cholecystokinin (CCK) facilitates the storage of dietary TG fatty acids in WAT by regulating the activity of the LPL/ANGPTL-4 axis and that it does so by acting directly on CCK receptors in adipocytes...
January 16, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29339048/intrarenal-fat-deposition-does-not-interfere-with-the-measurement-of-single-kidney-perfusion-in-obese-swine-using-multi-detector-computed-tomography
#18
Christopher M Ferguson, Alfonso Eirin, Gregory J Michalak, Ahmad F Hedayat, Abdelrhman Abumoawad, Ahmed Saad, Xiangyang Zhu, Stephen C Textor, Cynthia H McCollough, Lilach O Lerman
BACKGROUND: Altered vascular structure or function in several diseases may impair renal perfusion. Multi-detector computed tomography (MDCT) is a non-invasive tool to assess single-kidney perfusion and function based on dynamic changes in tissue attenuation during contrast media transit. However, changes in basal tissue attenuation might hamper these assessments, despite background subtraction. Evaluation of iodine concentration using the dual-energy (DECT) MDCT mode allows excluding effects of basal values on dynamic changes in tissue attenuation...
January 10, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29338888/vibrio-communities-in-scleractinian-corals-differ-according-to-health-status-and-geographic-location-in-the-mediterranean-sea
#19
Esther Rubio-Portillo, Juan F Gago, Manuel Martínez-García, Luigi Vezzulli, Ramon Rosselló-Móra, Josefa Antón, Alfonso A Ramos-Esplá
The increase in seawater temperature associated with global warming is a significant threat to coral health and is linked to increasing mass mortality events and Vibrio-related coral diseases. In the Mediterranean Sea, the endemic Cladocora caespitosa and the invasive species Oculina patagonica are the main scleractinian corals affected by mass mortalities. In this study, culturable Vibrio spp. assemblages associated with healthy and unhealthy colonies of these two shallow coral species were characterized to assess the presence of Vibrio pathogens in tissue necrosis...
December 21, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/29338712/association-between-the-level-of-education-and-knowledge-attitudes-and-practices-regarding-dengue-in-the-caribbean-region-of-colombia
#20
Fredi Alexander Diaz-Quijano, Ruth Aralí Martínez-Vega, Alfonso J Rodriguez-Morales, Ronald Alexander Rojas-Calero, María Lucrecia Luna-González, Ronald Giovanny Díaz-Quijano
BACKGROUND: Community integration in dengue control requires assessments of knowledge, attitudes and practices (KAPs), which can vary widely according to demographic and educational factors. We aimed to describe and compare the KAPs according to level of education in municipalities in the Caribbean region of Colombia. METHODS: A survey was administered from October to December 2015, including families selected through probabilistic sampling in eleven municipalities...
January 16, 2018: BMC Public Health
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