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https://www.readbyqxmd.com/read/28521337/perspectives-for-clinical-use-of-engineered-human-host-defense-antimicrobial-peptides
#1
María Eugenia Pachón-Ibáñez, Younes Smani, Jerónimo Pachón, Javier Sánchez-Céspedes
Infectious diseases caused by bacteria, viruses or fungi are among the leading causes of death worldwide. The emergence of drug-resistance mechanisms, especially among bacteria, threatens the efficacy of all current antimicrobial agents, some of them already ineffective. As a result, there is an urgent need for new antimicrobial drugs. Host defense antimicrobial peptides (HDPs) are natural occurring and well-conserved peptides of innate immunity, broadly active against Gram-negative and Gram-positive bacteria, viruses and fungi...
May 1, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28518147/survivin-a-key-player-in-cancer-progression-increases-in-obesity-and-protects-adipose-tissue-stem-cells-from-apoptosis
#2
Miriam Ejarque, Victòria Ceperuelo-Mallafré, Carolina Serena, Gisela Pachón, Yaiza Núñez-Álvarez, Margarida Terrón-Puig, Enrique Calvo, Catalina Núñez-Roa, Wilfredo Oliva-Olivera, Francisco J Tinahones, Miguel Angel Peinado, Joan Vendrell, Sonia Fernández-Veledo
Adipose tissue (AT) has a central role in obesity-related metabolic imbalance through the dysregulated production of cytokines and adipokines. In addition to its known risk for cardiovascular disease and diabetes, obesity is also a major risk for cancer. We investigated the impact of obesity for the expression of survivin, an antiapoptotic protein upregulated by adipokines and a diagnostic biomarker of tumor onset and recurrence. In a cross-sectional study of 111 subjects classified by body mass index, circulating levels of survivin and gene expression in subcutaneous AT were significantly higher in obese patients and positively correlated with leptin...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28500387/thermal-adaptation-strategies-of-the-extremophile-bacterium-thermus-filiformis-based-on-multi-omics-analysis
#3
F Mandelli, M B Couger, D A A Paixão, C B Machado, C M Carnielli, J A Aricetti, I Polikarpov, R Prade, C Caldana, A F Paes Leme, A Z Mercadante, D M Riaño-Pachón, Fabio Marcio Squina
Thermus filiformis is an aerobic thermophilic bacterium isolated from a hot spring in New Zealand. The experimental study of the mechanisms of thermal adaptation is important to unveil response strategies of the microorganism to stress. In this study, the main pathways involved on T. filiformis thermoadaptation, as well as, thermozymes with potential biotechnological applications were revealed based on omics approaches. The strategy adopted in this study disclosed that pathways related to the carbohydrate metabolism were affected in response to thermoadaptation...
May 12, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28497342/exploration-of-the-acetylcholinesterase-inhibitory-activity-of-some-alkaloids-from-amaryllidaceae-family-by-molecular-docking-in-silico
#4
Willian O Castillo-Ordóñez, Elvira R Tamarozzi, Gabriel M da Silva, Andrés F Aristizabal-Pachón, Elza T Sakamoto-Hojo, Catarina S Takahashi, Silvana Giuliatti
Alzheimer's disease (AD) is a progressive condition, where dementia symptoms gradually worsen. Biochemically the disease is characterized by the presence of neuritic plaques, neurofibrillary tangles, in addition to cholinergic dysfunction in the central nervous system. The role of the cholinergic neurotransmission in AD is the basis of the widely accepted cholinergic hypothesis. Some of the most relevant therapies for the treatment of the disease are based on the acetylcholinesterase (AChE) inhibitor activity; however, these therapies are not effective to stop the disease progression, but only can temporarily slow down the worsening of dementia symptoms, and improve quality of life of patients and their caregivers...
May 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28497224/bone-density-microarchitecture-and-material-strength-in-chronic-kidney-disease-patients-at-the-time-of-kidney-transplantation
#5
M J Pérez-Sáez, S Herrera, D Prieto-Alhambra, L Vilaplana, X Nogués, M Vera, D Redondo-Pachón, M Mir, R Güerri, M Crespo, A Díez-Pérez, J Pascual
Bone health is assessed by bone mineral density (BMD). Other techniques such as trabecular bone score and microindentation could improve the risk of fracture's estimation. Our chronic kidney disease (CKD) patients presented worse bone health (density, microarchitecture, mechanical properties) than controls. More than BMD should be done to evaluate patients at risk of fracture. INTRODUCTION: BMD measured by dual-energy X-ray absorptiometry (DXA) is used to assess bone health in end-stage renal disease (ESRD) patients...
May 11, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28483170/-did-mozart-suffer-from-gilles-de-la-tourette-syndrome
#6
Leonardo Palacios-Sánchez, Juan Sebastián Botero-Meneses, Laura Daniela Vergara-Méndez, Natalia Pachón, Arianna Martínez, Santiago Ramírez
The personal and private lives of great men and women in history, like writers, painters and musicians, have been the subject of great interest for many years. A clear example of this is the vast scrutiny is cast over the famous composer, Wolfgang Amadeus Mozart. What may have started as curiosity, rapidly evolved into extensive research, as the answers about the musician's legendary talent may lie in the details of his life (his childhood, his relationships, his quirks and his mannerisms). It is usually up to historians, anthropologists or philosophers to delve into the pages of old books, trying to grasp answers and clues...
April 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/28453834/overproduction-of-outer-membrane-protein-a-by-acinetobacter-baumannii-as-a-risk-factor-for-nosocomial-pneumonia-bacteremia-and-mortality-rate-increase
#7
Viviana Sánchez-Encinales, Rocío Álvarez-Marín, María Eugenia Pachón-Ibáñez, Felipe Fernández-Cuenca, Alvaro Pascual, José Garnacho-Montero, Luis Martínez-Martínez, Jordi Vila, María Mar Tomás, José Miguel Cisneros, Germán Bou, Jesús Rodríguez-Baño, Jerónimo Pachón, Younes Smani
Background.: Outer membrane protein A (OmpA) is a porin involved in Acinetobacter baumannii pathogenesis. However, OmpA clinical implication in hospital-acquired infections remains unknown. We aimed to determine whether OmpA overproduction was a risk factor associated with pneumonia, bacteremia, and mortality. Methods.: We analyzed demographic, microbiological, and clinical data from 100 patients included in a unicenter cohort and 246 included in a unicenter cohort and a multicenter cohort...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28443966/miniaturized-transcatheter-leadless-pacemaker-in-a-patient-with-double-mechanical-prosthesis
#8
Marta Pachón, Alberto Puchol, Finn Akerström, Andrés Sánchez-Pérez, Miguel A Arias
No abstract text is available yet for this article.
March 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28411971/mdrd-or-ckd-epi-for-glomerular-filtration-rate-estimation-in-living-kidney-donors
#9
Carla Burballa, Marta Crespo, Dolores Redondo-Pachón, María José Pérez-Sáez, Marisa Mir, Carlos Arias-Cabrales, Albert Francés, Lluis Fumadó, Lluis Cecchini, Julio Pascual
INTRODUCTION: The evaluation of the measured Glomerular Filtration Rate (mGFR) or estimated Glomerular Filtration Rate (eGFR) is key in the proper assessment of the renal function of potential kidney donors. We aim to study the correlation between glomerular filtration rate estimation equations and the measured methods for determining renal function. MATERIAL AND METHODS: We analysed the relationship between baseline GFR values measured by Tc-(99)m-DTPA (diethylene-triamine-pentaacetate) and those estimated by the four-variable Modification of Diet in Renal Disease (MDRD4) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations in a series of living donors at our institution...
April 12, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28383704/ploidyngs-visually-exploring-ploidy-with-next-generation-sequencing-data
#10
Renato Augusto Corrêa Dos Santos, Gustavo Henrique Goldman, Diego Mauricio Riaño-Pachón
Summary: ploidyNGS is a model-free, open source tool to visualize and explore ploidy levels in a newly sequenced genome, exploiting short read data. We tested ploidyNGS using both simulated and real NGS data of the model yeast Saccharomyces cerevisiae. ploidyNGS allows the identification of the ploidy level of a newly sequenced genome in a visual way. Availability and implementation: ploidyNGS is available under the GNU General Public License (GPL) at https://github...
April 5, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28373284/pathogenic-acinetobacter-species-have-a-functional-type-i-secretion-system-and-contact-dependent-inhibition-systems
#11
Christian M Harding, Marina R Pulido, Gisela Di Venanzio, Rachel L Kinsella, Andrew I Webb, Nichollas E Scott, Jerónimo Pachón, Mario F Feldman
Pathogenic Acinetobacter species, including A. baumannii and A. nosocomialis, are opportunistic human pathogens of increasing relevance worldwide. Although their mechanisms of drug resistance are well studied, the virulence factors that govern Acinetobacter pathogenesis are incompletely characterized. Here we define the complete secretome of A. nosocomialis strain M2 in minimal media and demonstrate that pathogenic Acinetobacter species produce both a functional type I secretion system (T1SS) and a contact dependent inhibition (CDI) system...
April 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28361917/the-low-affinity-glucose-transporter-hxtb-is-also-involved-in-glucose-signalling-and-metabolism-in-aspergillus-nidulans
#12
Thaila Fernanda Dos Reis, Benjamin M Nitsche, Pollyne Borborema Almeida de Lima, Leandro José de Assis, Laura Mellado, Steven D Harris, Vera Meyer, Renato A Corrêa Dos Santos, Diego M Riaño-Pachón, Laure Nicolas Annick Ries, Gustavo H Goldman
One of the drawbacks during second-generation biofuel production from plant lignocellulosic biomass is the accumulation of glucose, the preferred carbon source of microorganisms, which causes the repression of hydrolytic enzyme secretion by industrially relevant filamentous fungi. Glucose sensing, subsequent transport and cellular signalling pathways have been barely elucidated in these organisms. This study therefore characterized the transcriptional response of the filamentous fungus Aspergillus nidulans to the presence of high and low glucose concentrations under continuous chemostat cultivation with the aim to identify novel factors involved in glucose sensing and signalling...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28360170/draft-genome-sequence-of-saccharomyces-cerevisiae-barra-grande-bg-1-a-brazilian-industrial-bioethanol-producing-strain
#13
Natalia Coutouné, Aline Tieppo Nogueira Mulato, Diego Mauricio Riaño-Pachón, Juliana Velasco de Castro Oliveira
Here, we present the draft genome sequence of Saccharomyces cerevisiae BG-1, a Brazilian industrial strain widely used for bioethanol production from sugarcane. The 11.7-Mb genome sequence consists of 216 scaffolds and harbors 5,607 predicted protein-coding genes.
March 30, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28347776/identification-of-new-snps-associated-with-severe-toxicity-to-capecitabine
#14
Marta Pellicer, Xandra García-González, María I García, Luis Robles, Cristina Grávalos, Pilar García-Alfonso, Vanessa Pachón, Federico Longo, Virginia Martínez, Carolina Blanco, Irene Iglesias, María Sanjurjo, Luis A López-Fernández
Predicting individual risk of chemotherapy-induced severe adverse reaction is a critical issue when selecting the best treatment for cancer patients. SNPs have been identified in genes involved in the pharmacodynamics of fluoropyrimidines, and guidelines even recommend genotyping some DPYD variants in order to estimate the risk of toxicity. However, the predictive value of this approach remains insufficient, thus limiting its clinical implementation. The aim of the present study was to identify new genetic variants by selecting a group of tag SNPs in genes associated with the pharmacodynamics of fluoropyrimidines (CDA, DPYD, ENOSF1, CES1, TYMS, SLC22A7, TYMP, and UMPS)...
June 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28321398/unveiling-the-metabolic-changes-on-muscle-cell-metabolism-underlying-p-phenylenediamine-toxicity
#15
Igor Marín de Mas, Silvia Marín, Gisela Pachón, Juan C Rodríguez-Prados, Pedro Vizán, Josep J Centelles, Romà Tauler, Amaya Azqueta, Vitaly Selivanov, Adela López de Ceraín, Marta Cascante
Rhabdomyolysis is a disorder characterized by acute damage of the sarcolemma of the skeletal muscle leading to release of potentially toxic muscle cell components into the circulation, most notably creatine phosphokinase (CK) and myoglobulin, and is frequently accompanied by myoglobinuria. In the present work, we evaluated the toxicity of p-phenylenediamine (PPD), a main component of hair dyes which is reported to induce rhabdomyolysis. We studied the metabolic effect of this compound in vivo with Wistar rats and in vitro with C2C12 muscle cells...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28261220/dual-role-of-natural-killer-cells-on-graft-rejection-and-control-of-cytomegalovirus-infection-in-renal-transplantation
#16
REVIEW
Miguel López-Botet, Carlos Vilches, Dolores Redondo-Pachón, Aura Muntasell, Aldi Pupuleku, José Yélamos, Julio Pascual, Marta Crespo
Allograft rejection constitutes a major complication of solid organ transplantation requiring prophylactic/therapeutic immunosuppression, which increases susceptibility of patients to infections and cancer. Beyond the pivotal role of alloantigen-specific T cells and antibodies in the pathogenesis of rejection, natural killer (NK) cells may display alloreactive potential in case of mismatch between recipient inhibitory killer-cell immunoglobulin-like receptors (KIRs) and graft HLA class I molecules. Several studies have addressed the impact of this variable in kidney transplant with conflicting conclusions; yet, increasing evidence supports that alloantibody-mediated NK cell activation via FcγRIIIA (CD16) contributes to rejection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28244695/instant-noodles-made-with-fortified-wheat-flour-to-improve-micronutrient-intake-in-asia-a-review-of-simulation-nutrient-retention-and-sensory-studies
#17
Kayla L Bronder, Sarah L Zimmerman, Annoek van den Wijngaart, Karen Codling, Kirsten Ag Johns, Helena Pachón
BACKGROUND AND OBJECTIVES: Consumption of foods made with wheat flour, particularly instant noodles, is increasing in Asia. Given this trend, fortifying wheat flour with vitamins and minerals may improve micronutrient intake in the region. The objective of this review was to understand what is known about fortifying wheat flour used to make instant noodles. METHODS AND STUDY DESIGN: A literature review of seven databases was performed using the search terms "noodle" and ("Asian" or "instant")...
March 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28196534/comparative-genomics-reveals-high-biological-diversity-and-specific-adaptations-in-the-industrially-and-medically-important-fungal-genus-aspergillus
#18
Ronald P de Vries, Robert Riley, Ad Wiebenga, Guillermo Aguilar-Osorio, Sotiris Amillis, Cristiane Akemi Uchima, Gregor Anderluh, Mojtaba Asadollahi, Marion Askin, Kerrie Barry, Evy Battaglia, Özgür Bayram, Tiziano Benocci, Susanna A Braus-Stromeyer, Camila Caldana, David Cánovas, Gustavo C Cerqueira, Fusheng Chen, Wanping Chen, Cindy Choi, Alicia Clum, Renato Augusto Corrêa Dos Santos, André Ricardo de Lima Damásio, George Diallinas, Tamás Emri, Erzsébet Fekete, Michel Flipphi, Susanne Freyberg, Antonia Gallo, Christos Gournas, Rob Habgood, Matthieu Hainaut, María Laura Harispe, Bernard Henrissat, Kristiina S Hildén, Ryan Hope, Abeer Hossain, Eugenia Karabika, Levente Karaffa, Zsolt Karányi, Nada Kraševec, Alan Kuo, Harald Kusch, Kurt LaButti, Ellen L Lagendijk, Alla Lapidus, Anthony Levasseur, Erika Lindquist, Anna Lipzen, Antonio F Logrieco, Andrew MacCabe, Miia R Mäkelä, Iran Malavazi, Petter Melin, Vera Meyer, Natalia Mielnichuk, Márton Miskei, Ákos P Molnár, Giuseppina Mulé, Chew Yee Ngan, Margarita Orejas, Erzsébet Orosz, Jean Paul Ouedraogo, Karin M Overkamp, Hee-Soo Park, Giancarlo Perrone, Francois Piumi, Peter J Punt, Arthur F J Ram, Ana Ramón, Stefan Rauscher, Eric Record, Diego Mauricio Riaño-Pachón, Vincent Robert, Julian Röhrig, Roberto Ruller, Asaf Salamov, Nadhira S Salih, Rob A Samson, Erzsébet Sándor, Manuel Sanguinetti, Tabea Schütze, Kristina Sepčić, Ekaterina Shelest, Gavin Sherlock, Vicky Sophianopoulou, Fabio M Squina, Hui Sun, Antonia Susca, Richard B Todd, Adrian Tsang, Shiela E Unkles, Nathalie van de Wiele, Diana van Rossen-Uffink, Juliana Velasco de Castro Oliveira, Tammi C Vesth, Jaap Visser, Jae-Hyuk Yu, Miaomiao Zhou, Mikael R Andersen, David B Archer, Scott E Baker, Isabelle Benoit, Axel A Brakhage, Gerhard H Braus, Reinhard Fischer, Jens C Frisvad, Gustavo H Goldman, Jos Houbraken, Berl Oakley, István Pócsi, Claudio Scazzocchio, Bernhard Seiboth, Patricia A vanKuyk, Jennifer Wortman, Paul S Dyer, Igor V Grigoriev
BACKGROUND: The fungal genus Aspergillus is of critical importance to humankind. Species include those with industrial applications, important pathogens of humans, animals and crops, a source of potent carcinogenic contaminants of food, and an important genetic model. The genome sequences of eight aspergilli have already been explored to investigate aspects of fungal biology, raising questions about evolution and specialization within this genus. RESULTS: We have generated genome sequences for ten novel, highly diverse Aspergillus species and compared these in detail to sister and more distant genera...
February 14, 2017: Genome Biology
https://www.readbyqxmd.com/read/28182695/two-three-loci-control-scleral-ossicle-formation-via-epistasis-in-the-cavefish-astyanax-mexicanus
#19
Anastasia Lyon, Amanda K Powers, Joshua B Gross, Kelly E O'Quin
The sclera is the protective outer layer of the eye. In fishes, birds, and reptiles, the sclera may be reinforced with additional bony elements called scleral ossicles. Teleost fish vary in the number and size of scleral ossicles; however, the genetic mechanisms responsible for this variation remain poorly understood. In this study, we examine the inheritance of scleral ossicles in the Mexican tetra, Astyanax mexicanus, which exhibits both a cave morph and a surface fish morph. As these morphs and their hybrids collectively exhibit zero, one, and two scleral ossicles, they represent a microcosm of teleost scleral ossicle diversity...
2017: PloS One
https://www.readbyqxmd.com/read/28159569/nonfluoroscopic-catheter-ablation-results-from-a-prospective-multicenter-registry
#20
Miguel Álvarez, Vicente Bertomeu-González, M Fe Arcocha, Pablo Moriña, Luis Tercedor, Ángel Ferrero de Loma, Marta Pachón, Amaya García, Mónica Pardo, Tomás Datino, Concepción Alonso, Joaquín Osca
INTRODUCTION AND OBJECTIVES: Nonfluoroscopic catheter ablation is feasible in most procedures. The aim of our registry was to evaluate the safety and feasibility of a zero-fluoroscopic approach to catheter ablation in several Spanish centers. METHODS: Eleven centers prospectively included a minimum of 20 patients. Patients with an arrhythmic substrate deemed suitable by the operator for a zero-fluoroscopic approach throughout the procedure were recruited. Patients with intracardiac devices were not included...
January 31, 2017: Revista Española de Cardiología
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