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Julia Fernandez Puñal de Araújo, Priscila Lang Podratz, Eduardo Merlo, Isabela Valim Sarmento, Charles Santos da Costa, Oscar Mauricio Santamaria Niño, Rodrigo Alves Faria, Leandro Ceotto Freitas Lima, Jones Bernardes Graceli
Organotin (OTs) compounds are organometallic compounds that are widely used in industry, such as in the manufacture of plastics, pesticides, paints, and others. OTs are released into the environment by anthropogenic actions, leading to contact with aquatic and terrestrial organisms that occur in animal feeding. Although OTs are degraded environmentally, reports have shown the effects of this contamination over the years because it can affect organisms of different trophic levels. OTs act as endocrine-disrupting chemicals (EDCs), which can lead to several abnormalities in organisms...
2018: Frontiers in Endocrinology
Sang-Won Min, Peter Dongmin Sohn, Yaqiao Li, Nino Devidze, Jeffrey R Johnson, Nevan J Krogan, Eliezer Masliah, Sue-Ann Mok, Jason E Gestwicki, Li Gan
Hyperacetylation of tau has been implicated in neurodegeneration and cognitive decline in tauopathy brains. The NAD-dependent class III protein deacetylase SIRT1 is one of major enzymes involved in removal of acetyl groups from tau in vitro However, whether SIRT1 regulates acetylation of pathogenic tau and ameliorates tau-mediated pathogenesis remains unclear. Here, we report deacetylating activity of SIRT1 for acetylated Lys174 (K174) of tau in tauP301S transgenic mice with a brain-specific SIRT1 deletion...
March 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Leila M Lopes-Bezerra, Hector M Mora-Montes, Yu Zhang, Gustavo Nino-Vega, Anderson Messias Rodrigues, Zoilo Pires de Camargo, Sybren de Hoog
The description of cryptic species with different pathogenic potentials has changed the perspectives on sporotrichosis. Sporothrix schenckii causes a benign chronic subcutaneous mycosis, Sporothrix brasiliensis is highly virulent, and Sporothrix globosa mainly causes fixed cutaneous lesions. Furthermore, S. brasiliensis is the prevalent species related to cat-transmitted sporotrichosis. Sources of infection, transmission, and distribution patterns also differ between species, and variability differs between species because of different degrees of clonality...
April 1, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Kris Niño G Valdehuesa, Kristine Rose M Ramos, Llewelyn S Moron, Imchang Lee, Grace M Nisola, Won-Keun Lee, Wook-Jin Chung
The continued research in the isolation of novel bacterial strains is inspired by the fact that native microorganisms possess certain desired phenotypes necessary for recombinant microorganisms in the biotech industry. Most studies have focused on the isolation and characterization of strains from marine ecosystems as they present a higher microbial diversity than other sources. In this study, a marine bacterium, W5C, was isolated from red seaweed collected from Yeosu, South Korea. The isolate can utilize several natural polysaccharides such as agar, alginate, carrageenan, and chitin...
March 13, 2018: Current Microbiology
Miguel Fontecha-Barriuso, Diego Martin-Sanchez, Olga Ruiz-Andres, Jonay Poveda, Maria Dolores Sanchez-Niño, Lara Valiño-Rivas, Marta Ruiz-Ortega, Alberto Ortiz, Ana Belén Sanz
Epigenetics refers to heritable changes in gene expression patterns not caused by an altered nucleotide sequence, and includes non-coding RNAs and covalent modifications of DNA and histones. This review focuses on functional evidence for the involvement of DNA and histone epigenetic modifications in the pathogenesis of kidney disease and the potential therapeutic implications. There is evidence of activation of epigenetic regulatory mechanisms in acute kidney injury (AKI), chronic kidney disease (CKD) and the AKI-to-CKD transition of diverse aetiologies, including ischaemia-reperfusion injury, nephrotoxicity, ureteral obstruction, diabetes, glomerulonephritis and polycystic kidney disease...
March 9, 2018: Nephrology, Dialysis, Transplantation
Dana K Briscoe, Sabrina Fossette, Kylie L Scales, Elliott L Hazen, Steven J Bograd, Sara M Maxwell, Elizabeth A McHuron, Patrick W Robinson, Carey Kuhn, Daniel P Costa, Larry B Crowder, Rebecca L Lewison
Characterizing habitat suitability for a marine predator requires an understanding of the environmental heterogeneity and variability over the range in which a population moves during a particular life cycle. Female California sea lions ( Zalophus californianus ) are central-place foragers and are particularly constrained while provisioning their young. During this time, habitat selection is a function of prey availability and proximity to the rookery, which has important implications for reproductive and population success...
March 2018: Ecology and Evolution
Carlos Culquichicón, Emanuel Ramos-Cedano, Luis Helguero-Santin, Roberto Niño-Garcia, Alfonso J Rodriguez-Morales
Carrion's disease is a major re-emerging and occupational health disease. This bibliometric study aimed to evaluate scientific production on this disease both globally and in Latin America. SCI-E, MEDLINE/GoPubMed, SCOPUS, ScIELO, and LILACS databases were searched for Carrion's disease-related articles. They were classified according to publication year, type, city and institution of origin, international cooperation, scientific journal, impact factor, publication language, author(s), and H-index. There were 170 articles in SCI-E...
March 1, 2018: Le Infezioni in Medicina
Andrea Osimani, Vesna Milanović, Federica Cardinali, Cristiana Garofalo, Francesca Clementi, Marina Pasquini, Paola Riolo, Sara Ruschioni, Nunzio Isidoro, Nino Loreto, Elena Franciosi, Kieran Tuohy, Annalisa Petruzzelli, Martina Foglini, Claudia Gabucci, Franco Tonucci, Lucia Aquilanti
Tenebrio molitor represents one of the most popular species used for the large-scale conversion of plant biomass into protein and is characterized by high nutritional value. In the present laboratory study, the bacterial biota characterizing a pilot production chain of fresh T. molitor larvae was investigated. To this end, different batches of fresh mealworm larvae, their feeding substrate (wheatmeal) and frass were analyzed by viable microbial counts, PCR-DGGE and Illumina sequencing. Moreover, the occurrence of Coxiella burnetii, Pseudomonas aeruginosa and Shiga toxin-producing E...
March 7, 2018: International Journal of Food Microbiology
Leila M Lopes-Bezerra, Louise A Walker, Gustavo Niño-Vega, Héctor M Mora-Montes, Gabriela W P Neves, Hector Villalobos-Duno, Laura Barreto, Karina Garcia, Bernardo Franco, José A Martínez-Álvarez, Carol A Munro, Neil A R Gow
Sporotrichosis is a subcutaneous mycosis caused by pathogenic species of the Sporothrix genus. A new emerging species, Sporothrix brasiliensis, is related to cat-transmitted sporotrichosis and has severe clinical manifestations. The cell wall of pathogenic fungi is a unique structure and impacts directly on the host immune response. We reveal and compare the cell wall structures of Sporothrix schenckii and S. brasiliensis using high-pressure freezing electron microscopy to study the cell wall organization of both species...
March 9, 2018: PLoS Neglected Tropical Diseases
Nino Andricevic, Mirko Junge, Jonas Krampe
OBJECTIVE: Construction of Injury risk functions (IRF) for front row occupants in oblique frontal crashes and a comparison to IRF of non-oblique frontal crashes from the same dataset. METHOD: Crashes of modern vehicles from the GIDAS (German In-depth Accident Study) were used as the basis for the construction of a logistic injury risk model. Static deformation, measured via displaced voxels on the post-crash vehicles, was used to calculate the energy dissipated in the crash...
March 9, 2018: Traffic Injury Prevention
Iana O Andreieva, Olha Konstantynovska, Fabio Midulla, Diana Marangu, Nino Mchedlishvili
Participants in the 2017 ERS summer schools of adult and paediatric respiratory medicine describe their experiences
March 2018: Breathe
Shruti B Seshadri, Michelle M Nolan, Goknur Tutuncu, Jennifer S Forrester, Eva Sapper, Giovanni Esteves, Torsten Granzow, Pam A Thomas, Juan C Nino, Tadej Rojac, Jacob L Jones
Large piezoelectric coefficients in polycrystalline lead zirconate titanate (PZT) are traditionally achieved through compositional design using a combination of chemical substitution with a donor dopant and adjustment of the zirconium to titanium compositional ratio to meet the morphotropic phase boundary (MPB). In this work, a different route to large piezoelectricity is demonstrated. Results reveal unexpectedly high piezoelectric coefficients at elevated temperatures and compositions far from the MPB. At temperatures near the Curie point, doping with 2 at% Sm results in exceptionally large piezoelectric coefficients of up to 915 pm/V...
March 7, 2018: Scientific Reports
Mario Bretfeld, Brent E Ewers, Jefferson S Hall
Tropical forests are increasingly being subjected to hotter, drier conditions as a result of global climate change. The effects of drought on forests along successional gradients remain poorly understood. We took advantage of the 2015-2016 El Niño event to test for differences in drought response along a successional gradient by measuring the sap flow in 76 trees, representing 42 different species, in 8-, 25- and 80-yr-old secondary forests in the 15-km2 'Agua Salud Project' study area, located in central Panama...
March 5, 2018: New Phytologist
Adriana M Pedraza Bermeo, Ana María Ortiz Zableh, Mariangel Castillo, Jaime Francisco Pérez Niño
INTRODUCTION: Postobstructive diuresis (POD) is a polyuric state in which large quantities of salt and water are eliminated after solving a urinary tract obstruction. These patients are at increased risk of severe dehydration, electrolytic disturbances, hypovolemic shock, and death. Ureteropelvic junction obstruction (UPJO) is the most common etiology of collecting system dilatation in the fetal kidney, and a significant number of patients require pyeloplasty. There are limited data regarding prognostic risk factors for POD in this scenario...
February 20, 2018: Journal of Pediatric Urology
Mauro Oddo, Daniele Poole, Raimund Helbok, Geert Meyfroidt, Nino Stocchetti, Pierre Bouzat, Maurizio Cecconi, Thomas Geeraerts, Ignacio Martin-Loeches, Hervé Quintard, Fabio Silvio Taccone, Romergryko G Geocadin, Claude Hemphill, Carole Ichai, David Menon, Jean-François Payen, Anders Perner, Martin Smith, José Suarez, Walter Videtta, Elisa R Zanier, Giuseppe Citerio
OBJECTIVE: To report the ESICM consensus and clinical practice recommendations on fluid therapy in neurointensive care patients. DESIGN: A consensus committee comprising 22 international experts met in October 2016 during ESICM LIVES2016. Teleconferences and electronic-based discussions between the members of the committee subsequently served to discuss and develop the consensus process. METHODS: Population, intervention, comparison, and outcomes (PICO) questions were reviewed and updated as needed, and evidence profiles generated...
March 2, 2018: Intensive Care Medicine
Giorgio Carrabba, Marco Riva, Valeria Conte, Andrea Di Cristofori, Manuela Caroli, Marco Locatelli, Massimo Castellani, Paolo Bucciarelli, Andrea Artoni, Nino Stocchetti, Ida Martinelli, Paolo Rampini
The surgical resection of meningiomas can be complicated by venous thromboembolism (VTE) in the post-operative period, but the exact incidence of this event is not known. Aim of this study was to assess the occurrence of VTE in patients operated for meningioma who underwent a post-operative clinical and objective screening for VTE. Patients undergoing meningioma resection between 2000 and 2010 who accepted to be investigated for VTE in the post-operative period were included in the study. The screening included daily clinical assessment, pulmonary perfusion scintigraphy (Q-SCAN) on day 2 and venous compression ultrasonography (CUS) of the lower limbs within day 7...
March 2, 2018: Journal of Neuro-oncology
Matteo Detto, S Joseph Wright, Osvaldo Calderón, Helene C Muller-Landau
The El Niño-Southern Oscillation (ENSO) is the largest source of interannual climate variability in much of the tropics. We hypothesize that tropical plants exhibit interannual variation in reproduction and resource acquisition strategies driven by ENSO that mirrors their seasonal responses. We analyze the relationship of leaf and seed fall to climate variation over 30 years in a seasonally dry tropical forest in Panama where El Niño brings warm, dry, and sunny conditions. Elevated leaf fall precedes the onset of El Niño, and elevated seed production follows, paralleling associations with dry seasons...
March 2, 2018: Nature Communications
Nino Hirnschall, Ralph Varsits, Birgit Doeller, Oliver Findl
INTRODUCTION: The aim of this study was to find cases in which the axial eye length could not be measured with partial coherence interferometry (PCI) technology and to assess if it could be measured using swept source optical coherence tomography (ss-OCT) technology. METHODS: All patients were measured at their pre-assessment visit 1 week prior to cataract surgery using conventional optical biometry (PCI technology, IOLMaster 500, Carl Zeiss Meditec AG, Jena, Germany)...
March 1, 2018: Ophthalmology and Therapy
Benjamin W Heinrich, Christopher Ehlert, Nino Hatter, Lukas Braun, Christian Lotze, Peter Saalfrank, Katharina J Franke
The oxidation and spin state of a metal-organic molecule determine its chemical reactivity and magnetic properties. Here, we demonstrate the reversible control of the oxidation and spin state in a single Fe-porphyrin molecule in the force field of the tip of a scanning tunneling microscope. Within the regimes of half-integer and integer spin state, we can further track the evolution of the magnetocrystalline anisotropy. Our experimental results are corroborated by density functional theory and wave function theory...
February 28, 2018: ACS Nano
Juan Rojas De la Vega, Dona Benadof, Abigail Veas, Mirta Acuña
INTRODUCTION: Enterobacteriaceae are a group of gram-negative rods that can cause serious infections in humans. A susceptibility in Klebsiella pneumoniae of 79.4% to piperacillin/tazobactam (PIP/TAZO) is reported in pediatric hospitals in Chile. There is no published data published to date regarding PIP/TAZO susceptibility to other Enterobacteriaceae species in this population. AIM: To measure the in vitro PIP/TAZO susceptibility in Enterobacteriaceae isolates from patients in a pediatric hospital in Chile...
December 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
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