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Victor Perez

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https://www.readbyqxmd.com/read/28227726/mobile-teleradiology-system-suitable-for-m-health-services-supporting-content-and-semantic-based-image-retrieval-on-a-grid-infrastructure
#1
Alexandra La Cruz, Ruben Medina, Francisco Vega, Wilson Perez, Blanca Ochoa, Victor Saquicela, Mauricio Espinoza, Lizandro Solano-Quinde, Maria-Esther Vidal, Alexandra La Cruz, Ruben Medina, Francisco Vega, Wilson Perez, Blanca Ochoa, Victor Saquicela, Mauricio Espinoza, Lizandro Solano-Quinde, Maria-Esther Vidal, Victor Saquicela, Francisco Vega, Mauricio Espinoza, Lizandro Solano-Quinde, Blanca Ochoa, Maria-Esther Vidal, Alexandra La Cruz, Ruben Medina, Wilson Perez
Teleradiology systems tackle the problem of transferring radiological images between medical image workstations for facilitating different medical activities, e.g., diagnosis, treatment and follow up a patient, medical training, or consulting second opinion. Nowadays, m-Health (aka mobile health) is becoming popular because of high quality of mobile displays, although remains a work in progress. In this paper a mobile teleradiology system is reported, which main contribution is the development of a platform: (1) supported by a Grid infrastructure, (2) using biomedical ontologies for adding semantic annotations on medical images, and (3) supporting semantic and content-based image retrieval...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223031/effects-of-aripiprazole-quetiapine-and-ziprasidone-on-plasma-prolactin-levels-in-individuals-with-first-episode-nonaffective-psychosis-analysis-of-a-randomized-open-label-1year-study
#2
Benedicto Crespo-Facorro, Victor Ortiz-Garcia de la Foz, Paula Suarez-Pinilla, Elsa M Valdizan, Rocío Pérez-Iglesias, Jose Antonio Amado-Señaris, M Teresa Garcia-Unzueta, Javier Labad, Christopher Correll, Rosa Ayesa-Arriola
RATIONALE: Hyperprolactinemia is considered a troubling adverse effect of antipsychotics. Direct comparisons among second generation antipsychotics are scant in clinical practice. We hypothesize prolactin-sparing second-generation antipsychotics may have differential effects on prolactin levels and that they may be influenced by sex. OBJECTIVES: To explore the differential effect of three widely used prolactin-sparing antipsychotics, aripiprazole, quetiapine and ziprasidone, on prolactin plasma levels in first episode non-affective psychosis during a 1year of treatment...
February 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28216567/wine-flavonoids-in-health-and-disease-prevention
#3
Iva Fernandes, Rosa Pérez-Gregorio, Susana Soares, Nuno Mateus, Victor de Freitas
Wine, and particularly red wine, is a beverage with a great chemical complexity that is in continuous evolution. Chemically, wine is a hydroalcoholic solution (~78% water) that comprises a wide variety of chemical components, including aldehydes, esters, ketones, lipids, minerals, organic acids, phenolics, soluble proteins, sugars and vitamins. Flavonoids constitute a major group of polyphenolic compounds which are directly associated with the organoleptic and health-promoting properties of red wine. However, due to the insufficient epidemiological and in vivo evidences on this subject, the presence of a high number of variables such as human age, metabolism, the presence of alcohol, the complex wine chemistry, and the wide array of in vivo biological effects of these compounds suggest that only cautious conclusions may be drawn from studies focusing on the direct effect of wine and any specific health issue...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28214645/antibiotics-do-not-affect-the-degradation-of-fungicides-and-enhance-the-mineralization-of-chlorpyrifos-in-biomixtures
#4
Humberto Castillo-González, Marta Pérez-Villanueva, Mario Masís-Mora, Víctor Castro-Gutiérrez, Carlos E Rodríguez-Rodríguez
The use of antibiotics in agriculture produces residues in wastewaters. The disposal of such wastewaters in biopurification systems (BPS) employed for the treatment of pesticides could result in the inhibition of the degrading capacity of the biomixtures used in the BPS. We assayed the effect of two commercial formulations of antibiotics used in agriculture, one containing kasugamycin (KSG) and the other oxytetracycline plus gentamicin (OTC+GTM), on the biomixture performance. Doses from 0.1mgkg(-1) to 1000mgkg(-1) of KSG increased the respiration of the biomixture, and low doses enhanced the mineralization rate of the insecticide (14)C-chlorpyrifos...
February 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28208584/hybrid-visible-light-and-ultrasound-based-sensor-for-distance-estimation
#5
Jose Rabadan, Victor Guerra, Rafael Rodríguez, Julio Rufo, Martin Luna-Rivera, Rafael Perez-Jimenez
Distance estimation plays an important role in location-based services, which has become very popular in recent years. In this paper, a new short range cricket sensor-based approach is proposed for indoor location applications. This solution uses Time Difference of Arrival (TDoA) between an optical and an ultrasound signal which are transmitted simultaneously, to estimate the distance from the base station to the mobile receiver. The measurement of the TDoA at the mobile receiver endpoint is proportional to the distance...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28186315/sleep-study-in-disruptive-mood-dysregulation-disorder-and-bipolar-children
#6
Xavier Estrada-Prat, Ion Álvarez-Guerrico, María J Bleda-Hernández, Ester Camprodon-Rosanas, Santiago Batlle-Vila, Elena Pujals-Altes, María T Nascimento-Osorio, Luís M Martín-López, Enric Álvarez-Martínez, Víctor Pérez-Solá, Soledad Romero-Cela
INTRODUCTION: Decreased need for sleep has been proposed as a core symptom of mania and it has been associated with the pathogenesis of Bipolar Disorder. The emergence of Disruptive Mood Dysregulation Disorder (DMDD) as a new diagnostic has been controversial and much has been speculated about its relationship with the bipolar spectrum. REM sleep fragmentation could be a biomarker of affective disorders and it would help us to differentiate them from other disorders. METHOD: Polysomnographic cross-sectional study of children with DMDD, bipolar disorder and Attention Deficit Hyperactivity Disorder (ADHD)...
January 2017: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/28174274/a-statics-dynamics-equivalence-through-the-fluctuation-dissipation-ratio-provides-a-window-into-the-spin-glass-phase-from-nonequilibrium-measurements
#7
Marco Baity-Jesi, Enrico Calore, Andres Cruz, Luis Antonio Fernandez, José Miguel Gil-Narvión, Antonio Gordillo-Guerrero, David Iñiguez, Andrea Maiorano, Enzo Marinari, Victor Martin-Mayor, Jorge Monforte-Garcia, Antonio Muñoz Sudupe, Denis Navarro, Giorgio Parisi, Sergio Perez-Gaviro, Federico Ricci-Tersenghi, Juan Jesus Ruiz-Lorenzo, Sebastiano Fabio Schifano, Beatriz Seoane, Alfonso Tarancón, Raffaele Tripiccione, David Yllanes
We have performed a very accurate computation of the nonequilibrium fluctuation-dissipation ratio for the 3D Edwards-Anderson Ising spin glass, by means of large-scale simulations on the special-purpose computers Janus and Janus II. This ratio (computed for finite times on very large, effectively infinite, systems) is compared with the equilibrium probability distribution of the spin overlap for finite sizes. Our main result is a quantitative statics-dynamics dictionary, which could allow the experimental exploration of important features of the spin-glass phase without requiring uncontrollable extrapolations to infinite times or system sizes...
February 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28173757/secondary-prevention-strategies-after-an-acute-st-segment-elevation-myocardial-infarction-in-the-ami-code-era-beyond-myocardial-mechanical-reperfusion
#8
Núria Ribas, Cosme García-García, Oona Meroño, Lluís Recasens, Silvia Pérez-Fernández, Víctor Bazán, Neus Salvatella, Julio Martí-Almor, Jordi Bruguera, Roberto Elosua
BACKGROUND: The AMI code is a regional network enhancing a rapid and widespread access to reperfusion therapy (giving priority to primary angioplasty) in patients with acute ST-segment elevation myocardial infarction (STEMI). We aimed to assess the long-term control of conventional cardiovascular risk factors after a STEMI among patients included in the AMI code registry. DESIGN AND METHODS: Four hundred and fifty-four patients were prospectively included between June-2009 and April-2013...
February 7, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28146239/combined-pi3k-akt-and-smad2-activation-promotes-corneal-endothelial-cell-proliferation
#9
Alfonso L Sabater, Enrique J Andreu, María García-Guzmán, Tania López, Gloria Abizanda, Victor L Perez, Javier Moreno-Montañés, Felipe Prósper
Purpose: The purpose of this study was to develop a culture method for expansion of corneal endothelial cells (CEC) based on the combined activation of PI3K/Akt and Smad2. Methods: Morphology, proliferation, and migration of cultured rabbit and nonhuman primate CEC were examined in the presence of the PI3K/Akt activators IGF-1 and heregulin beta in combination with the Smad2 activator activin A. Phenotypic characterization of CEC was performed at the RNA and protein levels...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28140601/current-induced-generation-and-synchronous-motion-of-highly-packed-coupled-chiral-domain-walls
#10
Rafael Pérez Del Real, Victor Raposo, Eduardo Martinez, Masamitsu Hayashi
Chiral domain walls of Neel type emerge in heterostructures that include heavy metal (HM) and ferromagnetic metal (FM) layers owing to the Dzyaloshinskii-Moriya (DM) interaction at the HM/FM interface. In developing storage class memories based on the current induced motion of chiral domain walls, it remains to be seen how dense such domain walls can be packed together. Here we show that a universal short range repulsion that scales with the strength of the DM interaction exists among chiral domain walls. The distance between the two walls can be reduced with application of out of plane field, allowing formation of coupled domain walls...
January 31, 2017: Nano Letters
https://www.readbyqxmd.com/read/28135091/fluorescent-molecular-rotors-fmrs-of-organoboron-compounds-from-schiff-bases-synthesis-viscosity-reversible-thermochromism-cytotoxicity-and-bioimaging-cells
#11
Marisol Ibarra-Rodriguez, Blanca M Muñoz-Flores, H V Rasika Dias, Mario Sanchez, Alberto Gómez-Treviño, Rosa Santillan, Norberto Farfan, Victor Manuel Jimenez-Perez
Here we report the design, synthesis, and characterization of two new fluorescent molecular rotors of boron derived from Schiff bases: (2,4,8,10-tetra-tert-butyl-6-phenyldibenzo[d,h][1,3,6,2]dioxazaboronine 3 and 1,4-bis(2,4,8,10-tetra-tert-butyldibenzo[d,h][1,3,6,2]dioxazaboronin-6-yl)benzene 4, as well as the free ligand 2-{[(3,5-di-t-butyl-2-hydroxyphenyl)imino]methyl}-4,6-di-t-butyl-phenol 1. All compounds were fully characterized by NMR (1H, 11B, and 13C), IR, UV/vis, fluorescence spectroscopy, and high resolution mass spectrometry...
January 30, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28127875/molecular-and-clinical-analysis-of-alpl-in-a-cohort-of-patients-with-suspicion-of-hypophosphatasia
#12
Jair Tenorio, Ignacio Álvarez, Leyre Riancho-Zarrabeitia, Gabriel Á Martos-Moreno, Giorgia Mandrile, Monserrat de la Flor Crespo, Mikhail Sukchev, Mostafa Sherif, Iza Kramer, María T Darnaude-Ortiz, Pedro Arias, Gema Gordo, Irene Dapía, Julián Martinez-Villanueva, Rubén Gómez, José Manuel Iturzaeta, Ghada Otaify, Mayte García-Unzueta, Alessandro Rubinacci, José A Riancho, Mona Aglan, Samia Temtamy, Mohamed Abdel Hamid, Jesús Argente, Víctor L Ruiz-Pérez, Karen E Heath, Pablo Lapunzina
Hypophosphatasia (HPP) is a rare autosomal dominant or recessive metabolic disorder caused by mutations in the tissue nonspecific alkaline phosphatase gene (ALPL). To date, over 300 different mutations in ALPL have been identified. Disease severity is widely variable with severe forms usually manifesting during perinatal and/or infantile periods while mild forms are sometimes only diagnosed in adulthood or remain undiagnosed. Common clinical features of HPP are defects in bone and tooth mineralization along with the biochemical hallmark of decreased serum alkaline phosphatase activity...
January 27, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28122528/a-non-invasive-tool-for-detecting-cervical-cancer-odor-by-trained-scent-dogs
#13
Héctor Guerrero-Flores, Teresa Apresa-García, Ónix Garay-Villar, Alejandro Sánchez-Pérez, David Flores-Villegas, Artfy Bandera-Calderón, Raúl García-Palacios, Teresita Rojas-Sánchez, Pablo Romero-Morelos, Verónica Sánchez-Albor, Osvaldo Mata, Víctor Arana-Conejo, Jesús Badillo-Romero, Keiko Taniguchi, Daniel Marrero-Rodríguez, Mónica Mendoza-Rodríguez, Miriam Rodríguez-Esquivel, Víctor Huerta-Padilla, Andrea Martínez-Castillo, Irma Hernández-Gallardo, Ricardo López-Romero, Cindy Bandala, Juan Rosales-Guevara, Mauricio Salcedo
BACKGROUND: Cervical Cancer (CC) has become a public health concern of alarming proportions in many developing countries such as Mexico, particularly in low income sectors and marginalized regions. As such, an early detection is a key medical factor in improving not only their population's quality of life but also its life expectancy. Interestingly, there has been an increase in the number of reports describing successful attempts at detecting cancer cells in human tissues or fluids using trained (sniffer) dogs...
January 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28117161/exposure-to-silver-nanoparticles-produces-oxidative-stress-and-affects-macromolecular-and-metabolic-biomarkers-in-the-goodeid-fish-chapalichthys-pardalis
#14
Roberto Carlos Valerio-García, Ana Laura Carbajal-Hernández, Erika Berenice Martínez-Ruíz, Víctor Hugo Jarquín-Díaz, Catalina Haro-Pérez, Fernando Martínez-Jerónimo
Silver nanoparticles (AgNPs) are the most commercialized nanomaterial worldwide, mainly due to their microbicidal activity. Although, AgNPs have been shown to be toxic to aquatic species, their effect on endemic fish, like Goodeidae, has not been demonstrated. Endemic species are under strong pressures by anthropogenic contamination and destruction of their habitat; therefore, we studied adult Chapalichthys pardalis, an endemic fish of Mexico. We evaluated the toxic effect of AgNPs through oxidative stress, macromolecular and metabolic biomarkers...
January 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28116328/molecular-spectrum-and-differential-diagnosis-in-patients-referred-with-sporadic-or-autosomal-recessive-osteogenesis-imperfecta
#15
Jose A Caparros-Martin, Mona S Aglan, Samia Temtamy, Ghada A Otaify, Maria Valencia, Julián Nevado, Elena Vallespin, Angela Del Pozo, Carmen Prior de Castro, Lucia Calatrava-Ferreras, Pilar Gutierrez, Ana M Bueno, Belen Sagastizabal, Encarna Guillen-Navarro, Maria Ballesta-Martinez, Vanesa Gonzalez, Sarenur Y Basaran, Ruksan Buyukoglan, Bilge Sarikepe, Cecilia Espinoza-Valdez, Francisco Cammarata-Scalisi, Victor Martinez-Glez, Karen E Heath, Pablo Lapunzina, Victor L Ruiz-Perez
BACKGROUND: Osteogenesis imperfecta (OI) is a heterogeneous bone disorder characterized by recurrent fractures. Although most cases of OI have heterozygous mutations in COL1A1 or COL1A2 and show autosomal dominant inheritance, during the last years there has been an explosion in the number of genes responsible for both recessive and dominant forms of this condition. Herein, we have analyzed a cohort of patients with OI, all offspring of unaffected parents, to determine the spectrum of variants accounting for these cases...
January 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28108120/multiple-shoulder-abscesses-in-a-patient-with-rheumatoid-arthritis
#16
José Víctor Jiménez, Pedro Martínez-Ayala, Juan Cosme-Labarthe, Diego Luis Carrillo-Pérez
No abstract text is available yet for this article.
January 17, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28107398/integrated-chronology-flora-and-faunas-and-paleoecology-of-the-alajuela-formation-late-miocene-of-panama
#17
Bruce J MacFadden, Douglas S Jones, Nathan A Jud, Jorge W Moreno-Bernal, Gary S Morgan, Roger W Portell, Victor J Perez, Sean M Moran, Aaron R Wood
The late Miocene was an important time to understand the geological, climatic, and biotic evolution of the ancient New World tropics and the context for the Great American Biotic Interchange (GABI). Despite this importance, upper Miocene deposits containing diverse faunas and floras and their associated geological context are rare in Central America. We present an integrated study of the geological and paleontological context and age of a new locality from Lago Alajuela in northern Panama (Caribbean side) containing late Miocene marine and terrestrial fossils (plants, invertebrates, and vertebrates) from the Alajuela Formation...
2017: PloS One
https://www.readbyqxmd.com/read/28101285/twitter-as-a-tool-for-teaching-and-communicating-microbiology-the-micromoocsem-initiative
#18
Ignacio López-Goñi, Ma José Martínez-Viñas, Josefa Antón, Víctor J Cid, Ana Martín González, Maryury Brown-Jaque, Juan M García-Lobo, Manuel Sánchez, Juan Ignacio Vilchez, Tatiana Robledo-Mahón, Marina Seder-Colomina, Silvana Teresa Tapia-Paniagua, Alma Hernández de Rojas, Alejandro Mira, José Jesús Gallego-Parrilla, Teresa María López Díaz, Sergi Maicas I Prieto, Eduardo Villalobo, Guillermo Quindós, Sabela Balboa, Jesús L Romalde, Clara Aguilar-Pérez, Anna Tomás, María Linares, Óscar Zaragoza, Jéssica Gil-Serna, Raquel Ferrer-Espada, Ana I Camacho, Laura Vinué, Jorge García-Lara
No abstract text is available yet for this article.
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28096455/multicenter-prospective-study-on-device-associated-infection-rates-and-bacterial-resistance-in-intensive-care-units-of-venezuela-international-nosocomial-infection-control-consortium-inicc-findings
#19
Gabriel D Empaire, Maria E Guzman Siritt, Victor D Rosenthal, Fernando Pérez, Yvis Ruiz, Claudia Díaz, Gabriela Di Silvestre, Evelyn Salinas, Nelva Orozco
BACKGROUND: Device-associated healthcare-acquired infections (DA-HAI) pose a threat to patient safety in the intensive care unit (ICU). METHODS: A DA-HAI surveillance study was conducted by the International Nosocomial Infection Control Consortium (INICC) in two adult medical/surgical ICUs at two hospitals in Caracas, Venezuela, in different periods from March 2008 to April 2015, using the US Centers for Disease Control and Prevention's National Healthcare Safety Network (CDC/NHSN) definitions and criteria, and INICC methods...
January 2017: International Health
https://www.readbyqxmd.com/read/28092256/-resection-of-intracardiac-myxoma-case-report
#20
Víctor Manuel Carmona-Delgado, Angélica María Deloya-Maldonado, María Lourdes Carranza-Bernal, Arturo Hinojosa-Pérez, Leobardo Farías-Mayene
Myxomas are the most common benign cardiac tumors, which are considered emergency surgery. The resection should not be delayed because 8-9% of affected patients may die due to intracardiac blood flow obstruction. We presente a clinical case of a 47 year old female, history of dyslipidemia. Disease starts with retrosternal oppression feeling, dyspnea on moderate exercise, dizziness, pain in joints hands. Arrhytmic heart sounds, diastolic mitral murmur II/IV, breth sounds present, no lymph. Laboratory: hemoglobin 11...
January 2017: Revista Médica del Instituto Mexicano del Seguro Social
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