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https://www.readbyqxmd.com/read/28338245/infective-capacity-of-cryptococcus-neoformans-and-cryptococcus-gattii-in-a-human-astrocytoma-cell-line
#1
M C Olave, J C Vargas-Zambrano, A M Celis, E Castañeda, J M González
Pathogenesis of cryptococcosis in the central nervous system (CNS) is a topic of ongoing research, including the mechanisms by which this fungus invades and infects the brain. Astrocytes, the most common CNS cells, play a fundamental role in the local immune response. Astrocytes might participate in cryptococcosis either as a host or by responding to fungal antigens. To determine the infectivity of Cryptococcus neoformans var. grubii and Cryptococcus gattii in a human astrocytoma cell line and the induction of major histocompatibility complex (MHC) molecules...
March 24, 2017: Mycoses
https://www.readbyqxmd.com/read/28330622/dido-as-a-switchboard-that-regulates-self-renewal-and-differentiation-in%C3%A2-embryonic-stem-cells
#2
Agnes Fütterer, Jésus de Celis, Rosana Navajas, Luis Almonacid, Julio Gutiérrez, Amaia Talavera-Gutiérrez, Cristina Pacios-Bras, Ilenia Bernascone, Fernando Martin-Belmonte, Carlos Martinéz-A
Transition from symmetric to asymmetric cell division requires precise coordination of differential gene expression. We show that embryonic stem cells (ESCs) mainly express DIDO3 and that their differentiation after leukemia inhibitory factor withdrawal requires DIDO1 expression. C-terminal truncation of DIDO3 (Dido3ΔCT) impedes ESC differentiation while retaining self-renewal; small hairpin RNA-Dido1 ESCs have the same phenotype. Dido3ΔCT ESC differentiation is rescued by ectopic expression of DIDO3, which binds the Dido locus via H3K4me3 and RNA POL II and induces DIDO1 expression...
March 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28328958/physician-satisfaction-with-a-multi-platform-digital-scheduling-system
#3
Rodrigo Octávio Deliberato, Leonardo Lima Rocha, Alex Heitor Lima, Caroline Reis Maia Santiago, Jose Cláudio Cyrineu Terra, Alon Dagan, Leo Anthony Celi
OBJECTIVE: Physician shift schedules are regularly created manually, using paper or a shared online spreadsheet. Mistakes are not unusual, leading to last minute scrambles to cover a shift. We developed a web-based shift scheduling system and a mobile application tool to facilitate both the monthly scheduling and shift exchanges between physicians. The primary objective was to compare physician satisfaction before and after the mobile application implementation. METHODS: Over a 9-month period, three surveys, using the 4-point Likert type scale were performed to assess the physician satisfaction...
2017: PloS One
https://www.readbyqxmd.com/read/28328711/management-of-atrial-fibrillation-with-rapid-ventricular-response-in-the-intensive-care-unit-a-secondary-analysis-of-electronic-health-record-data
#4
Ari Moskowitz, Kenneth P Chen, Avraham Z Cooper, Abdullah Chahin, Mohammad M Ghassemi, Leo Anthony Celi
PURPOSE: Atrial fibrillation with rapid ventricular response (RVR) is common during critical illness. In this study, we explore the comparative effectiveness of three commonly used drugs (metoprolol, diltiazem, and amiodarone) in the management of atrial fibrillation with RVR in the intensive care unit (ICU). METHODS: Data pertaining to the first ICU admission were extracted from the Medical Information Mart for Intensive Care (MIMIC) III database. Patients who received one of the above pharmacologic agents while their heart rate was > 110bpm and had atrial fibrillation documented in the clinical chart were included...
March 21, 2017: Shock
https://www.readbyqxmd.com/read/28320411/human-rotavirus-strains-circulating-in-venezuela-after-vaccine-introduction-predominance-of-g2p-4-and-reemergence-of-g1p-8
#5
Esmeralda Vizzi, Oscar A Piñeros, M Daniela Oropeza, Laura Naranjo, José A Suárez, Rixio Fernández, José L Zambrano, Argelia Celis, Ferdinando Liprandi
BACKGROUND: Rotavirus (RV) is the most common cause of severe childhood diarrhea worldwide. Despite Venezuela was among the first developing countries to introduce RV vaccines into their national immunization schedules, RV is still contributing to the burden of diarrhea. Concerns exist about the selective pressure that RV vaccines could exert on the predominant types and/or emergence of new strains. RESULTS: To assess the impact of RV vaccines on the genotype distribution 1 year after the vaccination was implemented, a total of 912 fecal specimens, collected from children with acute gastroenteritis in Caracas from February 2007 to April 2008, were screened, of which 169 (18...
March 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28316262/tribute-to-dr-jacques-rogge-muscle-activity-and-fatigue-during-hiking-in-olympic-dinghy-sailing
#6
Jan G Bourgois, Jasmien Dumortier, Margot Callewaert, Bert Celie, Carlo Capelli, Gisela Sjøgaard, Dirk De Clercq, Jan Boone
'A tribute to Dr J. Rogge' aims to systematically review muscle activity and muscle fatigue during sustained submaximal quasi-isometric knee extension exercise (hiking) related to Olympic dinghy sailing as a tribute to Dr Rogge's merits in the world of sports. Dr Jacques Rogge is not only the former President of the International Olympic Committee, he was also an orthopaedic surgeon and a keen sailor, competing at three Olympic Games. In 1972, in fulfilment of the requirements for the degree of Master in Sports Medicine, he was the first who studied a sailors' muscle activity by means of invasive needle electromyography (EMG) during a specific sailing technique (hiking) on a self-constructed sailing ergometer...
March 19, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28315837/a-search-for-genes-mediating-the-growth-promoting-function-of-tgf%C3%AE-in-the-drosophila-melanogaster-wing-disc
#7
Covadonga F Hevia, Ana López-Varea, Nuria Esteban, Jose F de Celis
TGFβ signalling has a complex influence in cell proliferation, acting to stop cell division in differentiating cells, but also promoting cell division in immature cells. The activity of the pathway in Drosophila is mostly required to stimulate the proliferation of neural and epithelial tissues. Most interestingly, this function is not absolutely required for cell division, but it is needed for these tissues to reach their correct size. It is not known how TGFβ signalling promotes cell division in imaginal discs, or what are the interactions between TGFβ activity and other signalling pathways regulating cell proliferation...
March 17, 2017: Genetics
https://www.readbyqxmd.com/read/28299856/effects-of-a-short-term-supranutritional-selenium-supplementation-on-redox-balance-physiology-and-insulin-related-metabolism-in-heat-stressed-pigs
#8
F Liu, P Celi, J J Cottrell, S S Chauhan, B J Leury, F R Dunshea
Heat stress (HS) disrupts redox balance and insulin-related metabolism. Supplementation with supranutritional amounts of selenium (Se) may enhance glutathione peroxidase (GPX) activity and reduce oxidative stress, but may trigger insulin resistance. Therefore, the aim of this experiment was to investigate the effects of a short-term high Se supplementation on physiology, oxidative stress and insulin-related metabolism in heat-stressed pigs. Twenty-four gilts were fed either a control (0.20 ppm Se) or a high Se (1...
March 16, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28297338/epid-based-in-vivo-dosimetry-system-clinical-experience-and-results
#9
Sofia Celi, Emilie Costa, Claas Wessels, Alejandro Mazal, Alain Fourquet, Pascal Francois
Mandatory in several countries, in vivo dosimetry has been recognized as one of the next milestones in radiation oncology. Our department has implemented clinically an EPID based in vivo dosimetry system, EPIgray, by DOSISOFT S.A., since 2006. An analysis of the measurements per linac and energy over a two-year period was performed, which included a more detailed examination per technique and treatment site over a six-month period. A comparison of the treatment planning system doses and the doses estimated by EPIgray shows a mean of the differences of 1...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28292464/intracellular-acidification-increases-adenosine-transport-in-human-umbilical-vein-endothelial-cells
#10
Natalia Celis, Joaquín Araos, Carlos Sanhueza, Fernando Toledo, Ana R Beltrán, Fabián Pardo, Andrea Leiva, Marco A Ramírez, Luis Sobrevia
INTRODUCTION: Adenosine is taken up via human equilibrative nucleoside transporters 1 (hENT1) and 2 (hENT2) at a physiological extracellular pH (pHo ∼7.4) in human umbilical vein endothelial cells (HUVECs). Acidic pHo increases the uptake of adenosine and 5-hydroxytryptamine (5HT) via hENT4 in this cell type. However, modulation of hENT1 and hENT2 transport activity by the pHi is unknown. We investigated whether hENT1 and hENT2-adenosine transport was regulated by acidic pHi. METHODS: HUVECs loaded with a pH sensitive probe were subjected to 0...
March 2017: Placenta
https://www.readbyqxmd.com/read/28289868/associations-of-vitamin-d-status-with-dietary-intakes-and-physical-activity-levels-among-adults-from-seven-european-countries-the-food4me-study
#11
Yannis Manios, George Moschonis, Christina P Lambrinou, Christina Mavrogianni, Lydia Tsirigoti, Ulrich Hoeller, Franz F Roos, Igor Bendik, Manfred Eggersdorfer, Carlos Celis-Morales, Katherine M Livingstone, Cyril F M Marsaux, Anna L Macready, Rosalind Fallaize, Clare B O'Donovan, Clara Woolhead, Hannah Forster, Marianne C Walsh, Santiago Navas-Carretero, Rodrigo San-Cristobal, Silvia Kolossa, Jacqueline Hallmann, Mirosław Jarosz, Agnieszka Surwiłło, Iwona Traczyk, Christian A Drevon, Ben van Ommen, Keith Grimaldi, John N S Matthews, Hannelore Daniel, J Alfredo Martinez, Julie A Lovegrove, Eileen R Gibney, Lorraine Brennan, Wim H M Saris, Mike Gibney, John C Mathers
PURPOSE: To report the vitamin D status in adults from seven European countries and to identify behavioural correlates. METHODS: In total, 1075 eligible adult men and women from Ireland, Netherlands, Spain, Greece, UK, Poland and Germany, were included in the study. RESULTS: Vitamin D deficiency and insufficiency, defined as 25-hydroxy vitamin D3 (25-OHD3) concentration of <30 and 30-49.9 nmol/L, respectively, were observed in 3.3 and 30...
March 13, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28280037/local-activation-of-p53-in-the-tumor-microenvironment-overcomes-immune-suppression-and-enhances-antitumor-immunity
#12
Gang Guo, Miao Yu, Wei Xiao, Esteban Celis, Yan Cui
Mutations in tumor suppressor p53 remain a vital mechanism of tumor escape from apoptosis and senescence. Emerging evidence suggests that p53 dysfunction also fuels inflammation and supports tumor immune evasion, thereby serving as an immunological driver of tumorigenesis. Therefore, targeting p53 in the tumor microenvironment (TME) also represents an immunologically desirable strategy for reversing immunosuppression and enhancing antitumor immunity. Using a pharmacological p53 activator nutlin-3a, we show that local p53 activation in TME comprising overt tumor infiltrating leukocytes (TILeus) induces systemic antitumor immunity and tumor regression, but not in TME with scarce TILeus, such as B16 melanoma...
March 9, 2017: Cancer Research
https://www.readbyqxmd.com/read/28278261/evolutionary-and-biogeographical-implications-of-degraded-laglidadg-endonuclease-functionality-and-group-i-intron-occurrence-in-stony-corals-scleractinia-and-mushroom-corals-corallimorpharia
#13
Juan Sebastián Celis, David R Edgell, Björn Stelbrink, Daniel Wibberg, Torsten Hauffe, Jochen Blom, Jörn Kalinowski, Thomas Wilke
Group I introns and homing endonuclease genes (HEGs) are mobile genetic elements, capable of invading target sequences in intron-less genomes. LAGLIDADG HEGs are the largest family of endonucleases, playing a key role in the mobility of group I introns in a process known as 'homing'. Group I introns and HEGs are rare in metazoans, and can be mainly found inserted in the COXI gene of some sponges and cnidarians, including stony corals (Scleractinia) and mushroom corals (Corallimorpharia). Vertical and horizontal intron transfer mechanisms have been proposed as explanations for intron occurrence in cnidarians...
2017: PloS One
https://www.readbyqxmd.com/read/28277779/further-investigations-on-the-epidemiology-of-fowl-typhoid-in-brazil
#14
Anny Lucia Del Pilar Celis-Estupiñan, Diego Felipe Alves Batista, Marita Vedovelli Cardozo, Andrei Itajahy Secundo de Souza, Lucas Bocchini Rodrigues Alves, Adriana Maria de Almeida, Paul Andrew Barrow, Angelo Berchieri, Oliveiro Caetano de Freitas Neto
Salmonella Gallinarum (SG) causes fowl typhoid (FT), a disease responsible for economic losses to the poultry industry worldwide. FT has been considered under control in Brazil; nevertheless, since 2012 it has frequently been identified in poultry farming of several Brazilian states. The present study was aimed at assessing: (i) the pathogenicity of a SG strain recently isolated from an FT outbreak affecting chickens of both white and brown layers; (ii) the transmission of SG through eggs and hatching; (iii) the effects of antibiotic therapy on SG persistence in poultry tissues and on its vertical transmission; (iv) the genetic profiles of strains isolated over 27 years by PFGE...
March 1, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28276523/homozygosity-for-the-wrn-helicase-inactivating-variant-r834c-does-not-confer-a-werner-syndrome-clinical-phenotype
#15
Ashwini S Kamath-Loeb, Diego G Zavala-van Rankin, Jeny Flores-Morales, Mary J Emond, Julia M Sidorova, Alessandra Carnevale, Maria Del Carmen Cárdenas-Cortés, Thomas H Norwood, Raymond J Monnat, Lawrence A Loeb, Gabriela E Mercado-Celis
Loss-of-function mutations in the WRN helicase gene cause Werner syndrome- a progeroid syndrome with an elevated risk of cancer and other age-associated diseases. Large numbers of single nucleotide polymorphisms have been identified in WRN. We report here the organismal, cellular, and molecular phenotypes of variant rs3087425 (c. 2500C > T) that results in an arginine to cysteine substitution at residue 834 (R834C) and up to 90% reduction of WRN helicase activity. This variant is present at a high (5%) frequency in Mexico, where we identified 153 heterozygous and three homozygous individuals among 3,130 genotyped subjects...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28257509/genetic-diversity-and-association-mapping-in-the-colombian-central-collection-of-solanum-tuberosum-l-andigenum-group-using-snps-markers
#16
Jhon Berdugo-Cely, Raúl Iván Valbuena, Erika Sánchez-Betancourt, Luz Stella Barrero, Roxana Yockteng
The potato (Solanum tuberosum L.) is the fourth most important crop food in the world and Colombia has one of the most important collections of potato germplasm in the world (the Colombian Central Collection-CCC). Little is known about its potential as a source of genetic diversity for molecular breeding programs. In this study, we analyzed 809 Andigenum group accessions from the CCC using 5968 SNPs to determine: 1) the genetic diversity and population structure of the Andigenum germplasm and 2) the usefulness of this collection to map qualitative traits across the potato genome...
2017: PloS One
https://www.readbyqxmd.com/read/28251931/sleep-characteristics-modify-the-association-of-genetic-predisposition-with-obesity-and-anthropometric-measurements-in-119-679-uk-biobank-participants
#17
Carlos Celis-Morales, Donald M Lyall, Yibing Guo, Lewis Steell, Daniel Llanas, Joey Ward, Daniel F Mackay, Stephany M Biello, Mark Es Bailey, Jill P Pell, Jason Mr Gill
Background: Obesity is a multifactorial condition influenced by genetics, lifestyle, and environment.Objective: We investigated whether the association of a validated genetic profile risk score for obesity (GPRS-obesity) with body mass index (BMI) and waist circumference (WC) was modified by sleep characteristics.Design: This study included cross-sectional data from 119,859 white European adults, aged 37-73 y, participating in the UK Biobank. Interactions of GPRS-obesity and sleep characteristics (sleep duration, chronotype, day napping, and shift work) with their effects on BMI and WC were investigated...
March 1, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28243692/intratumoral-administration-of-cgamp-transiently-accumulates-potent-macrophages-for-anti-tumor-immunity-at-a-mouse-tumor-site
#18
Takayuki Ohkuri, Akemi Kosaka, Kei Ishibashi, Takumi Kumai, Yui Hirata, Kenzo Ohara, Toshihiro Nagato, Kensuke Oikawa, Naoko Aoki, Yasuaki Harabuchi, Esteban Celis, Hiroya Kobayashi
Stimulator of IFN genes (STING) spontaneously contributes to anti-tumor immunity by inducing type I interferons (IFNs) following sensing of tumor-derived genomic DNAs in the tumor-bearing host. Although direct injection of STING ligands such as cyclic diguanylate monophosphate (c-di-GMP) and cyclic [G(2',5')pA(3',5')p] (cGAMP) into the tumor microenvironment exerts anti-tumor effects through strong induction of type I IFNs and activation of innate and adaptive immunity, the precise events caused by STING in the tumor microenvironment remain to be elucidated...
February 27, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28240097/soluble-intercellular-adhesion-molecule-1-a-potential-biomarker-for-pain-intensity-in-chronic-pain-patients
#19
Benjamin Luchting, Ludwig Christian Giuseppe Hinske, Banafscheh Rachinger-Adam, Leo Anthony Celi, Simone Kreth, Shahnaz Christina Azad
AIM: Pain therapy is strongly guided by patients' self-reporting. However, when self-reporting is not an option, pain assessment becomes a challenge and may lead to undertreatment of painful conditions. Pain is a complex and multifactorial phenomenon. Recent work has connected pain pathophysiology also with the inflammatory system. We therefore hypothesized that pain intensity could be predicted by cytokine-levels. PATIENTS & METHODS: In this observational, single-center study, we investigated 30 serum cytokines to predict pain intensity in a screening/follow-up set of 95 chronic pain patients and controls...
March 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28214276/-in-vitro-antifungal-activity-of-azoles-and-amphotericin-b-against-malassezia-furfur-by-the-clsi-m27-a3-microdilution-and-etest-%C3%A2-methods
#20
Juan Camilo Galvis-Marín, María Ximena Rodríguez-Bocanegra, Adriana Del Pilar Pulido-Villamarín, Rubiela Castañeda-Salazar, Adriana Marcela Celis-Ramírez, Melva Yomary Linares-Linares
BACKGROUND: Malassezia furfur is a human skin commensal yeast that can cause skin and opportunistic systemic infections. Given its lipid dependant status, the reference methods established by the Clinical and Laboratory Standards Institute (CLSI) to evaluate antifungal susceptibility in yeasts are not applicable. AIMS: To evaluate the in vitro susceptibility of M. furfur isolates from infections in humans to antifungals of clinical use. METHODS: The susceptibility profile to amphotericin B, itraconazole, ketoconazole and voriconazole of 20 isolates of M...
February 14, 2017: Revista Iberoamericana de Micología
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