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Victor Perez

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https://www.readbyqxmd.com/read/28742879/epidemiological-investigations-of-the-introduction-of-porcine-reproductive-and-respiratory-syndrome-virus-in-chile-2013-2015
#1
Víctor Neira, Barbara Brito, Juan Mena, Marie Culhane, Maria Ignacia Apel, Vanessa Max, Patricio Perez, Valentina Moreno, Christian Mathieu, Magdalena Johow, Catalina Badia, Montserrat Torremorell, Rafael Medina, Rene Ortega
Porcine reproductive and respiratory syndrome (PRRS) is endemic in most pork producing countries. In Chile, eradication of PRRS virus (PRRSV) was successfully achieved in 2009 as a result of the combined efforts of producers and the animal health authorities. In October 2013, after several years without detecting PRRSV under surveillance activities, suspected cases were confirmed on a commercial swine farm. Here, we describe the PRRS epidemic in Chile between October 2013 and April 2015, and we studied the origins and spread of PRRSV throughout the country using official surveillance data and Bayesian phylogenetic analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28737865/unusual-increase-of-cases-of-myelitis-in-a-pediatric-hospital-in-argentina
#2
Guadalupe Pérez, María T Rosanova, María C Freire, María I Paz, Silvina Ruvinsky, Carlos Rugilo, Víctor Ruggieri, Daniel Cisterna, Soledad Martiren, Cristina Lema, Andrea Savransky, Soledad González, Leila Martínez, Diana Viale, Rosa Bologna
INTRODUCTION: The association between enterovirus D68 and acute flaccid myelitis was first described in the United States in 2014. Since then, sporadic cases have been reported in Canada and Europe. This study describes a series of cases of acute flaccid myelitis at Hospital de Pediatría "Prof. Dr. Juan P. Garrahan," in Buenos Aires, Argentina, during 2016. METHODS: Descriptive, retrospective study. All patients with acute flaccid myelitis and lesions in the spinal cord involving the gray matter, as observed in the magnetic resonance imaging (MRI) scan, hospitalized from 04/01/2016 to 07/01/2016, were included in the study...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28737474/artemisia-dracunculus-extracts-obtained-by-organic-solvents-and-supercritical-co2-produce-cytotoxic-and-antitumor-effects-in-mice-with-l5178y-lymphoma
#3
Martha Hilda Navarro-Salcedo, Jorge Ivan Delgado-Saucedo, Victor Hugo Siordia-Sánchez, Luis J González-Ortiz, Gustavo Adolfo Castillo-Herrera, Ana M Puebla-Pérez
We investigated the cytotoxic and antitumor effects of nine leaf extracts from Artemisia dracunculus (Tarragon). Five extracts were obtained using different organic solvents and four by supercritical CO2. The cytotoxic effects were expressed as IC50 in 100, 80, 80, 100, and 80 μg/mL by respective solvents: hexane, ethyl acetate, acetone, ethanol, and acetonitrile in L5178Y lymphoma cells. For supercritical CO2 extract A, IC50 was 100 μg/mL; for extracts C and D, IC50 was 150 μg/mL. The antitumor activity was assessed through a tumor growth inhibition test that measured ascites fluid volume and tumor cell counts of BALB/c mice (2 × 10(4) cells L5178Y i...
July 24, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28737287/internet-and-cell-phone-usage-patterns-among-young-adults-with-intellectual-disabilities
#4
Cristina Jenaro, Noelia Flores, Maribel Cruz, Ma Carmen Pérez, Vanessa Vega, Víctor A Torres
BACKGROUND: The risks and opportunities associated with the use of technologies are of growing research interest. Patterns of technology usage illuminate these opportunities and risks. However, no studies have assessed the usage patterns (frequency, duration, and intensity) and related factors in young people with intellectual disabilities. METHODS: Questionnaires on Internet and cell phone usage patterns, the Internet Over-Use Scale and the Cell-Phone Over-Use Scale, as well as the Beck Depression Inventory were filled out in one-on-one interviews of 216 youth with intellectual disabilities...
July 24, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28737284/antibody-reactivity-against-helicobacter-pylori-proteins-in-a-sample-of-the-spanish-adult-population-in-2008-2013
#5
Nerea Fernández-de-Larrea, Angelika Michel, Beatriz Romero, Julia Butt, Michael Pawlita, Beatriz Pérez-Gómez, Gemma Castaño-Vinyals, Victor Moreno, Vicente Martín, Pilar Amiano, Jesús Castilla, Guillermo Fernández-Tardón, Trinidad Dierssen-Sotos, Juan Clofent, Juan Alguacil, José María Huerta, José Juan Jiménez-Moleón, Aurelio Barricarte, Amaia Molinuevo, Tania Fernández-Villa, Delphine Casabonne, Ángeles Sierra, Manolis Kogevinas, Silvia de Sanjosé, Marina Pollán, Rosa Del Campo, Tim Waterboer, Nuria Aragonés
BACKGROUND: Differences in Helicobacter pylori protein expression have been related to the risk of severe gastric diseases. In Spain, a marked geographic pattern in gastric cancer mortality has long been reported. OBJECTIVE: To characterize antibody reactivity patterns against 16 H. pylori proteins, by age, sex, and region of birth, in a large sample of the Spanish adult population. MATERIALS AND METHODS: Antibody reactivity was quantified by H...
July 24, 2017: Helicobacter
https://www.readbyqxmd.com/read/28736340/tfos-dews-ii-pathophysiology-report
#6
REVIEW
Anthony J Bron, Cintia S de Paiva, Sunil K Chauhan, Stefano Bonini, Eric E Gabison, Sandeep Jain, Erich Knop, Maria Markoulli, Yoko Ogawa, Victor Perez, Yuichi Uchino, Norihiko Yokoi, Driss Zoukhri, David A Sullivan
The members of the TFOS DEWS II Pathophysiology Subcommittee reviewed the mechanisms involved in the initiation and perpetuation of dry eye disease. The Subcommittee also recommended areas for future research to advance our knowledge of the pathophysiology of this disease. The final report was written after review by all Subcommittee members and the TFOS DEWS II membership.
May 31, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28725107/retrospective-study-of-the-relationship-of-torque-teno-sus-virus-1a-and-torque-teno-sus-virus-1b-with-porcine-circovirus-associated-disease
#7
Alejandro Vargas-Ruiz, Hugo Ramírez-Álvarez, José I Sánchez-Betancourt, Víctor Quintero-Ramírez, Ignacio C Rangel-Rodríguez, Joel A Vázquez-Perez, Lucia A García-Camacho
Genus Iotatorquevirus consists of 2 species, Torque teno sus virus 1a and Torque teno sus virus 1b, which are ubiquitous in swine populations, and are widely reported in association with porcine circovirus associated disease (PCVAD). To evaluate the relationship with PCVAD, 100 formalin-fixed paraffin-embedded tissue samples were used to detect both Iotatorquevirus species by nested PCR and sequencing. Sixty-eight PCVAD cases were selected as well as 32 porcine circovirus type 2 (PCV2) non-affected cases. Overall, 33 of the 100 cases were positive for Torque teno sus virus 1a and 8 of 100 were positive for Torque teno sus virus 1b...
July 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28724361/serum-melatonin-levels-in-survivor-and-non-survivor-patients-with-traumatic-brain-injury
#8
Leonardo Lorente, María M Martín, Pedro Abreu-González, Antonia Pérez-Cejas, Luis Ramos, Mónica Argueso, Jordi Solé-Violán, Juan J Cáceres, Alejandro Jiménez, Victor García-Marín
BACKGROUND: Circulating levels of melatonin in patients with traumatic brain injury (TBI) have been determined in a little number of studies with small sample size (highest sample size of 37 patients) and only were reported the comparison of serum melatonin levels between TBI patients and healthy controls. As to we know, the possible association between circulating levels of melatonin levels and mortality of patients with TBI have not been explored; thus, the objective of our current study was to determine whether this association actually exists...
July 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28724302/efficacy-and-safety-of-vedolizumab-as-a-treatment-option-for-moderate-to-severe-refractory-ulcerative-colitis-in-two-patients-after-liver-transplant-due-to-primary-sclerosing-cholangitis
#9
Raúl Vicente Olmedo Martín, Víctor Amo Trillo, Rocío González Grande, Miguel Jiménez Pérez
Vedolizumab is a humanized IgG1 monoclonal antibody that selectively blocks the lymphocyte integrin α4β7 and prevents its interaction with endothelial adhesion molecules and subsequent transmigration to the gastrointestinal tract. The drug was approved in 2014 for the induction and maintenance treatment of ulcerative colitis and moderate to severe Crohn's disease that is refractory or intolerant to conventional treatment with corticoids and immunosuppressants and/or anti-TNFα drugs. However, inflammatory bowel disease has a variable behavior following liver transplant...
July 14, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28711743/is-a-simple-smartphone-application-capable-of-improving-biological-rhythms-in-bipolar-disorder
#10
Diego Hidalgo-Mazzei, María Reinares, Ainoa Mateu, Mario F Juruena, Allan H Young, Víctor Pérez-Sola, Eduard Vieta, Francesc Colom
BACKGROUND: Biological rhythms (BR) disturbance has been suggested as a potential mediator of mood episodes in Bipolar Disorder (BD). The Biological Rhythms Interview of Assessment in Neuropsychiatry (BRIAN) was designed as an assessment tool to evaluate BR domains comprehensively. In the context of a trial evaluating a smartphone application delivering personalized psychoeducational contents for BD (SIMPLe 1.0), the main aim of this study is to evaluate the potential impact of SIMPLe 1...
July 10, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28707379/three-and-6-month-optical-coherence-tomographic-surveillance-following-percutaneous-coronary-intervention-with-the-angiolite%C3%A2-drug-eluting-stent-the-anchor-study
#11
Rishi Puri, Imanol Otaegui, Manel Sabaté, Antonio Serra-Peñaranda, Marti Puigfel, Armando Perez de Prado, Luis Nombela-Franco, Jose M de la Torre Hernandez, Rosario Ortas Nadal, Andres Iniguez-Romo, Gustavo Jiménez, Felipe Fernandez-Vazquez, Carlos Cuellas-Ramon, Nieves Gonzalo, Victor Alfonso Jiménez Diaz, Lluis Duocastella, Maria Molina, Marc Amoros, Isabel Perez, Alberto Barria Perez, Emilie Pelletier Beaumont, Stephen J Nicholls, Bruno Garcia Del Blanco, Josep Rodés-Cabau
BACKGROUND: Pre-clinical results of a novel open-cell, thin strut, durable polymer, laser cut cobalt chromium sirolimus-eluting stent (Angiolite) were promising. Using quantitative optical coherence tomographic (OCT) analyses, we explored the healing characteristics of the Angiolite DES system at 3- and 6-months post implantation. METHODS: A total of 103 patients with de novo coronary lesions underwent percutaneous coronary intervention with the Angiolite DES and were randomized 1:3 into two cohorts for angiographic and OCT follow-up, with 28 and 70 patients returning for 3- or 6-month post-PCI surveillance, respectively...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28706457/relaxant-and-anti-inflammatory-effect-of-two-thalidomide-analogs-as-pde-4-inhibitors-in-pregnant-rat-uterus
#12
Víctor Manuel Muñoz-Pérez, Eduardo Fernández-Martínez, Héctor Ponce-Monter, Mario I Ortiz
The aim of this study was to evaluate the relaxant and anti-inflammatory effects of two thalidomide analogs as phosphodiesterase-4 (PDE-4) inhibitors in pregnant rat uterus. Uteri from Wistar female rats were isolated at 19 day of pregnancy. Uterine samples were used in functional studies to evaluate the inhibitory effects of the thalidomide analogs, methyl 3-(4-nitrophthalimido)-3-(3,4-dimethoxyphenyl)-propanoate (4NO2PDPMe) and methyl 3-(4-aminophthalimido)-3-(3,4-dimethoxyphenyl)-propanoate (4APDPMe), on prostaglandin-F2α (PGF2α)-induced phasic, K(+)-induced tonic, and Ca(2+)-induced contractions...
July 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28705252/efficacy-of-prospective-pharmacogenetic-testing-in-the-treatment-of-major-depressive-disorder-results-of-a-randomized-double-blind-clinical-trial
#13
Víctor Pérez, Ariana Salavert, Jordi Espadaler, Miquel Tuson, Jerónimo Saiz-Ruiz, Cristina Sáez-Navarro, Julio Bobes, Enrique Baca-García, Eduard Vieta, José M Olivares, Roberto Rodriguez-Jimenez, José M Villagrán, Josep Gascón, Josep Cañete-Crespillo, Montse Solé, Pilar A Saiz, Ángela Ibáñez, Javier de Diego-Adeliño, José M Menchón
BACKGROUND: A 12-week, double-blind, parallel, multi-center randomized controlled trial in 316 adult patients with major depressive disorder (MDD) was conducted to evaluate the effectiveness of pharmacogenetic (PGx) testing for drug therapy guidance. METHODS: Patients with a CGI-S ≥ 4 and requiring antidepressant medication de novo or changes in their medication regime were recruited at 18 Spanish public hospitals, genotyped with a commercial PGx panel (Neuropharmagen®), and randomized to PGx-guided treatment (n = 155) or treatment as usual (TAU, control group, n = 161), using a computer-generated random list that locked or unlocked psychiatrist access to the results of the PGx panel depending on group allocation...
July 14, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28704543/the-transcriptional-regulator-ssrb-is-involved-in-a-molecular-switch-controlling-virulence-lifestyles-of-salmonella
#14
Deyanira Pérez-Morales, María M Banda, N Y Elizabeth Chau, Heladia Salgado, Irma Martínez-Flores, J Antonio Ibarra, Bushra Ilyas, Brian K Coombes, Víctor H Bustamante
The evolution of bacterial pathogenicity, heavily influenced by horizontal gene transfer, provides new virulence factors and regulatory connections that alter bacterial phenotypes. Salmonella pathogenicity islands 1 and 2 (SPI-1 and SPI-2) are chromosomal regions that were acquired at different evolutionary times and are essential for Salmonella virulence. In the intestine of mammalian hosts, Salmonella expresses the SPI-1 genes that mediate its invasion to the gut epithelium. Once inside the cells, Salmonella down-regulates the SPI-1 genes and induces the expression of the SPI-2 genes, which favor its intracellular replication...
July 13, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28700843/autochthonous-crimean-congo-hemorrhagic-fever-in-spain
#15
Anabel Negredo, Fernando de la Calle-Prieto, Eduardo Palencia-Herrejón, Marta Mora-Rillo, Jenaro Astray-Mochales, María P Sánchez-Seco, Esther Bermejo Lopez, Javier Menárguez, Ana Fernández-Cruz, Beatriz Sánchez-Artola, Elena Keough-Delgado, Eva Ramírez de Arellano, Fátima Lasala, Jakob Milla, Jose L Fraile, Maria Ordobás Gavín, Amalia Martinez de la Gándara, Lorenzo López Perez, Domingo Diaz-Diaz, M Aurora López-García, Pilar Delgado-Jimenez, Alejandro Martín-Quirós, Elena Trigo, Juan C Figueira, Jesús Manzanares, Elena Rodriguez-Baena, Luis Garcia-Comas, Olaia Rodríguez-Fraga, Nicolás García-Arenzana, Maria V Fernández-Díaz, Victor M Cornejo, Petra Emmerich, Jonas Schmidt-Chanasit, Jose R Arribas
Crimean-Congo hemorrhagic fever (CCHF) is a widely distributed, viral, tickborne disease. In Europe, cases have been reported only in the southeastern part of the continent. We report two autochthonous cases in Spain. The index patient acquired the disease through a tick bite in the province of Ávila - 300 km away from the province of Cáceres, where viral RNA from ticks was amplified in 2010. The second patient was a nurse who became infected while caring for the index patient. Both were infected with the African 3 lineage of this virus...
July 13, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28699691/gold-triggered-uncaging-chemistry-in-living-systems
#16
Ana M Pérez-López, Belén Rubio-Ruiz, Víctor Sebastián, Lloyd Hamilton, Catherine Adam, Thomas L Bray, Silvia Irusta, Paul M Brennan, Guy Lloyd-Jones, Dirk Sieger, Jesús Santamaría, Asier Unciti-Broceta
Recent advances in bioorthogonal catalysis are increasing our capacity to manipulate the fate of molecules in complex biological systems. Herein we report a novel bioorthogonal uncaging strategy that is triggered by heterogeneous gold catalysis and facilitates the activation of a structurally-diverse range of therapeutics in cancer cell culture. Furthermore, this solid supported catalytic system enabled -for the first time- the locally-controlled release of a fluorescent dye in the brain of a zebrafish, offering a novel way to modulate the activity of bioorthogonal reagents in the most fragile and complex organs...
July 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28699557/-where-we-put-little-fish-in-the-water-there-are-no-mosquitoes-a-cross-sectional-study-on-biological-control-of-the-aedes-aegypti-vector-in-90-coastal-region-communities-of-guerrero-mexico
#17
Arcadio Morales-Pérez, Elizabeth Nava-Aguilera, José Legorreta-Soberanis, Antonio Juan Cortés-Guzmán, Alejandro Balanzar-Martínez, Eva Harris, Josefina Coloma, Víctor M Alvarado-Castro, Mónica Violeta Bonilla-Leon, Liliana Morales-Nava, Robert J Ledogar, Anne Cockcroft, Neil Andersson
BACKGROUND: In the Mexican state of Guerrero, some households place fish in water storage containers to prevent the development of mosquito larvae. Studies have shown that larvivorous fish reduce larva count in household water containers, but there is a lack of evidence about whether the use of fish is associated with a reduction in dengue virus infection. We used data from the follow up survey of the Camino Verde cluster randomised controlled trial of community mobilisation to reduce dengue risk to study this association...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28699552/assessing-the-effects-of-interventions-for-aedes-aegypti-control-systematic-review-and-meta-analysis-of-cluster-randomised-controlled-trials
#18
Víctor Alvarado-Castro, Sergio Paredes-Solís, Elizabeth Nava-Aguilera, Arcadio Morales-Pérez, Lidia Alarcón-Morales, Norma Alejandra Balderas-Vargas, Neil Andersson
BACKGROUND: The Aedes aegypti mosquito is the vector for dengue fever, yellow fever, chikungunya, and zika viruses. Inadequate vector control has contributed to persistence and increase of these diseases. This review assesses the evidence of effectiveness of different control measures in reducing Aedes aegypti proliferation, using standard entomological indices. METHODS: A systematic search of Medline, Ovid, BVS, LILACS, ARTEMISA, IMBIOMED and MEDIGRAPHIC databases identified cluster randomised controlled trials (CRCTs) of interventions to control Aedes aegypti published between January 2003 and October 2016...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28690968/miniemulsion-copolymerization-of-meth-acrylates-in-the-presence-of-functionalized-multiwalled-carbon-nanotubes-for-reinforced-coating-applications
#19
Bertha T Pérez-Martínez, Lorena Farías-Cepeda, Víctor M Ovando-Medina, José M Asua, Lucero Rosales-Marines, Radmila Tomovska
Film forming, stable hybrid latexes made of methyl metacrylate (MMA), butyl acrylate (BA) and 2-hydroxyethyl methacrylate (HEMA) copolymer reinforced with modified multiwalled carbon nanotubes (MWCNTs) were synthesized by in situ miniemulsion polymerization. The MWCNTs were pretreated by an air sonication process and stabilized by polyvinylpyrrolidone. The presence of the MWCNTs had no significant effect on the polymerization kinetics, but strongly affected the polymer characteristics (Tg and insoluble polymer fraction)...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28688273/leucine-rich-repeat-kinase-2-lrrk2-inhibitors-based-on-indolinone-scaffold-potential-pro-neurogenic-agents
#20
Irene G Salado, Josefa Zaldivar-Diez, Víctor Sebastián-Pérez, Lingling Li, Larissa Geiger, Silvia González, Nuria E Campillo, Carmen Gil, Aixa V Morales, Daniel I Perez, Ana Martinez
Leucine-rich repeat kinase 2 (LRRK2) is one of the most pursued targets for Parkinson's disease (PD) therapy. Moreover, it has recently described its role in regulating Wnt signaling and thus, it may be involved in adult neurogenesis. This new hypothesis could give rise to double disease-modifying agents firstly by the benefits of inhibiting LRRK2 and secondly by promoting adult neurogenesis. Herein we report, the design, synthesis, biological evaluation, SAR and potential binding mode of indoline-like LRRK2 inhibitors and their preliminary neurogenic effect in neural precursor cells isolated from adult mice ventricular-subventricular zone...
June 29, 2017: European Journal of Medicinal Chemistry
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