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Márcio Viegas, Cristina Cândido, Joana Felgueiras, José Clemente, Sara Barros, Rostislav Farbota, Filipa Vera, Antero Matos, Francisco Sousa
Introduction The dialysate bicarbonate (DB) influences the acid-base balance in dialysis patients. Very low and high serum bicarbonate (SB) have been related with a higher mortality. Acid-base balance also has been associated with hemodynamic effects in these patients. The trial aim was to compare the effect of DB concentration variation on SB levels in maintenance hemodiafiltration (HDF) patients and the effect on intradialytic hypotension and interdialytic weight gain. Methods  A prospective study, with 9 months of follow-up, involving 93 patients, divided in two groups: group 1 and group 2 with a DB of 34 mmol/L and 30 mmol/L, respectively, with monitoring of pre and post HDF SB, intradialytic hypotension, and interdialytic weight gain...
October 20, 2016: Hemodialysis International
Clément Chesseboeuf
This document presents a non-rigid registration algorithm for the use of brain magnetic resonance (MR) images comparison. More precisely, we want to compare pre-operative and post-operative MR images in order to assess the deformation due to a surgical removal. The proposed algorithm has been studied in Chesseboeuf et al. ((Non-rigid registration of magnetic resonance imaging of brain. IEEE, 385-390. doi: 10.1109/IPTA.2015.7367172 , 2015), following ideas of Trouvé (An infinite dimensional group approach for physics based models in patterns recognition...
October 19, 2016: Acta Biotheoretica
Nassib Bezerra Bueno, Telma Toledo Florêncio, Fabiana Albuquerque Cavalcante, Isabela Lopes Lins, Ana Grotti Clemente, Ana Lydia Sawaya
BACKGROUND: Short stature in adult life, a possible consequence of poor perinatal conditions, is associated with higher risk of mortality and social disabilities. We aimed to determine whether low-income, overweight/obese, short-stature (SS) women show alterations in body composition, self-body-image perception, and biochemical profile compared to their non-short (NS) counterparts. METHODS: A cross-sectional study was conducted with women living in shantytowns and mother or relatives to undernourished children treated in a center for recuperation and nutritional education...
2016: PeerJ
Nurkhalida Kamal, Christina V Viegelmann, Carol J Clements, RuAngelie Edrada-Ebel
Fungal endophytes offer diverse and unique secondary metabolites, making these organisms potential sources of promising drug leads. The application of high-resolution-liquid chromatography mass spectrometry and nuclear magnetic resonance-based metabolomics to fungal endophytes is practical in terms of dereplication studies and the mining of bioactive compounds. In this paper, we report the application of metabolomics in parallel with anti-trypanosomal assays to determine the ideal conditions for the medium-scale fermentation of the endophyte Lasiodiplodia theobromae...
October 19, 2016: Planta Medica
Anton Suvorov, Nicholas O Jensen, Camilla R Sharkey, M Stanley Fujimoto, Paul Bodily, Haley M Cahill Wightman, T Heath Ogden, Mark J Clement, Seth M Bybee
Gene duplication plays a central role in adaptation to novel environments by providing new genetic material for functional divergence and evolution of biological complexity. Several evolutionary models have been proposed for gene duplication to explain how new gene copies are preserved by natural selection but these models have rarely been tested using empirical data. Opsin proteins, when combined with a chromophore, form a photopigment that is responsible for the absorption of light, the first step in the phototransduction cascade...
October 18, 2016: Molecular Ecology
Carla Pereira, Catarina Moreirinha, Magdalena Lewicka, Paulo Almeida, Carla Clemente, Jesús L Romalde, Maria L Nunes, Adelaide Almeida
In the present study two new phages (phT4A and ECA2) were characterized and their efficacy was evaluated separately and in cocktail (phT4A/ECA2) to control Escherichia coli. The isolated phages, phT4A and ECA2, belonged to the Myoviridae and Podoviridae family, respectively and both are safe (no integrase and toxin codifying genes) to be used in bacterial control. In general, the increase of multiplicity of infection (MOI) from 1 to 100 promoted a significant increase in the efficiency of phage phT4A and phage cocktail phT4A/ECA2...
October 15, 2016: Virus Research
Brendan M Patterson, Scott M Eskildsen, R Carter Clement, Feng-Chang Lin, Christopher W Olcott, Daniel J Del Gaizo, Joshua N Tennant
Clinic wait time is considered an important predictor of patient satisfaction. The goal of this study was to determine whether patient satisfaction among orthopedic patients is associated with clinic wait time and time with the provider. The authors prospectively enrolled 182 patients at their outpatient orthopedic clinic. Clinic wait time was defined as the time between patient check-in and being seen by the surgeon. Time spent with the provider was defined as the total time the patient spent in the examination room with the surgeon...
October 18, 2016: Orthopedics
Yuantao Xie, Clément Le Priol, Jean J Heremans
Low-temperature quantum phase coherence lengths were experimentally measured in mesoscopic circular arenas fabricated on InGaAs quantum wells. The arenas are connected to wide sample regions by short side-wires, to investigate the effects of geometry in comparison to intrinsic materials properties on quantum decoherence. Universal conductance fluctuations were used to quantify the phase coherence lengths as a function of temperature and geometry. The experimental data show a dependence of phase coherence lengths on side-wire length and width-to-length ratio, which is accounted for by the competing effects of decoherence by coupling to the classical environment and Nyquist decoherence in ergodic wires...
October 18, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
Sanad Alonezi, Jonans Tusiimire, Jennifer Wallace, Mark J Dufton, John A Parkinson, Louise C Young, Carol J Clements, Jin Kyu Park, Jong Woon Jeon, Valerie A Ferro, David G Watson
In the present study, liquid chromatography-mass spectrometry (LC-MS) was employed to characterise the metabolic profiles of two human ovarian cancer cell lines A2780 (cisplatin-sensitive) and A2780CR (cisplatin-resistant) in response to their exposure to melittin, a cytotoxic peptide from bee venom. In addition, the metabolomics data were supported by application of Biolog microarray technology to examine the utilisation of carbon sources by the two cell lines. Data extraction with MZmine 2.14 and database searching were applied to provide metabolite lists...
October 13, 2016: Metabolites
Omid Sadeghi, Clément Falaise, Pedro I Molina, Ryan Hufschmid, Charles F Campana, Bruce C Noll, Nigel D Browning, May Nyman
The iron Keggin ion is identified as a structural building block in both magnetite and ferrihydrite, two important iron oxide phases in nature and in technology. Discrete molecular forms of the iron Keggin ion that can be both manipulated in water and chemically converted to the related metal oxides are important for understanding growth mechanisms, in particular, nonclassical nucleation in which cluster building units are preserved in the aggregation and condensation processes. Here we describe two iron Keggin ion structures, formulated as [Bi6FeO4Fe12O12(OH)12(CF3COO)10(H2O)2](3+) (Kegg-1) and [Bi6FeO4Fe12O12(OH)12(CF3COO)12](1+) (Kegg-2)...
October 18, 2016: Inorganic Chemistry
Mariano Garcia-Arranz, Damian Garcia-Olmo, Luz Vega-Clemente, Maurice Stroun, Peter B Gahan
In vitro studies of partially purified virtosomes from rat liver showed inhibition of cell multiplication in four normal and two tumour cell lines. In vivo, the liver virtosomes slowed tumour growth and limited metastases in rats bearing DHD/K12-PROb cell initiated tumours.
2016: Advances in Experimental Medicine and Biology
Francesco Russo, Guglielmina Chimienti, Michele Linsalata, Caterina Clemente, Antonella Orlando, Giuseppe Riezzo
BACKGROUND: Ghrelin levels and obestatin/ghrelin ratio have been proposed as activity markers in ulcerative colitis, but no data are available in celiac disease (CD) and irritable bowel syndrome (IBS). Our aims were as follows: (a) to assess obestatin and ghrelin concentrations in adult active CD patients, diarrhea-predominant IBS (IBS-d), and healthy controls (HC) in relation to intestinal permeability; (b) to evaluate the ghrelin-obestatin profile in CD patients after a 1-year gluten-free diet (GFD); and (c) to establish the impact of ghrelin genetics...
October 12, 2016: European Journal of Gastroenterology & Hepatology
Mathew Clement, James A Pearson, Stephanie Gras, Hugo A van den Berg, Anya Lissina, Sian Llewellyn-Lacey, Mark D Willis, Tamsin Dockree, James E McLaren, Julia Ekeruche-Makinde, Emma Gostick, Neil P Robertson, Jamie Rossjohn, Scott R Burrows, David A Price, F Susan Wong, Mark Peakman, Ania Skowera, Linda Wooldridge
CD8(+) T-cells play a role in the pathogenesis of autoimmune diseases such as multiple sclerosis and type 1 diabetes. However, drugs that target the entire CD8(+) T-cell population are not desirable because the associated lack of specificity can lead to unwanted consequences, most notably an enhanced susceptibility to infection. Here, we show that autoreactive CD8(+) T-cells are highly dependent on CD8 for ligand-induced activation via the T-cell receptor (TCR). In contrast, pathogen-specific CD8(+) T-cells are relatively CD8-independent...
October 17, 2016: Scientific Reports
Oscar G Bodelón, Celia Clemente, Miguel Angel Alobera, Soledad Aguado-Henche, María Lorenza Escudero, María Cristina García Alonso
BACKGROUND: In this work, the effect of the heat treatment on Ti6Al4V implants and topical administration of growth hormone to address a better osseointegration in osteoporotic patients has been analysed. METHODS: The osseointegration process of Ti6Al4V implants modified by oxidation treatment at 700 °C for 1 h and the influence of local administration of growth hormone (GH) in osteoporotic female rabbits after 15 and 30 days of implantation have been studied. Bone response was analysed through densitometric and histomorphometric studies...
December 2016: Int J Implant Dent
Clara Chepkirui, Christian Richter, Josphat Clement Matasyoh, Marc Stadler
Eight previously undescribed compounds were isolated and characterised from the supernatant and mycelium of a culture of the basidiomycete Favolaschia calocera originating from Kakamega equatorial rainforest in Kenya. These were: 9- oxostrobilurins A, G, K and I and the four monochlorinated calocerins A, B, C and D. The calocerins extend our knowledge of halogenated compounds obtained from natural sources. Four further known compounds were also identified: strobilurin G, favolon, pterulinic acid and 2,3 -dihydro-1-benzoxepin derivative...
October 13, 2016: Phytochemistry
Lesley J J Soril, Fiona M Clement, Tom W Noseworthy
Health Technology Reassessment (HTR) is an emerging area of health services and policy research that supports optimal management of technologies throughout their lifecycle. As a structured, evidence-based assessment of the clinical, economic, social, and ethical impacts of existing technologies, HTR is a means of achieving optimal use, managed exit, and better value for money from technologies used in healthcare. This has been documented as raising ethical concerns among clinicians who are providing direct patient care, particularly when managed exit may be the goal...
October 15, 2016: Healthcare Management Forum
Anne Marie Greenhalgh, Leticia Gonzalez-Blanco, Clemente Garcia-Rizo, Emilio Fernandez-Egea, Brian Miller, Miguel Bernardo Arroyo, Brian Kirkpatrick
BACKGROUND: Some studies have suggested that antipsychotic-naïve patients with nonaffective psychosis (NAP) have glucose intolerance. AIMS: To conduct a systematic review and meta-analysis of fasting glucose (FG), two hour values in the oral glucose tolerance test (2HG), fasting insulin concentration (INS), and insulin resistance (IR). METHOD: We identified possibly relevant studies, then selected studies, following usual guidelines, with two authors reviewing the manuscripts...
October 13, 2016: Schizophrenia Research
Joanne B Emerson, Patricia B Keady, Nicholas Clements, Emily E Morgan, Jonathan Awerbuch, Shelly L Miller, Noah Fierer
Our homes are microbial habitats, and although the amounts and types of bacteria in indoor air have been shown to vary substantially across residences, temporal variability within homes has rarely been characterized. Here, we sought to quantify the temporal variability in the amounts and types of airborne bacteria in homes, and what factors drive this variability. We collected filter samples of indoor and outdoor air in 15 homes over one year (approximately 8 time points per home, 2 per season), and we used culture-independent DNA sequencing approaches to characterize bacterial community composition...
October 15, 2016: Indoor Air
Clément Dondé, David Luck, Stéphanie Grot, David I Leitman, Jerome Brunelin, Frédéric Haesebaert
CONTEXT: Patients with schizophrenia display abnormalities in pitch discrimination of non-verbal tones as revealed by the Tone-Matching Task (TMT). It may lead to deficits in higher-order cognitive functions and clinical symptoms. OBJECTIVES: We conducted a systematic review and meta-analysis pooling data about TMT score differences between patients with schizophrenia and healthy controls, to evaluate the deficit's effect size, and to develop reliable knowledge about pitch processing impairment and its pejorative impact...
October 11, 2016: Schizophrenia Research
Ilaria Bergese, Simona Frigerio, Marco Clari, Emanuele Castagno, Antonietta De Clemente, Elena Ponticelli, Enrica Scavino, Paola Berchialla
OBJECTIVES: Return visit (RV) to the emergency department (ED) is considered a benchmarking clinical indicator for health care quality. The purpose of this study was to develop a predictive model for early readmission risk in pediatric EDs comparing the performances of 2 learning machine algorithms. METHODS: A retrospective study based on all children younger than 15 years spontaneously returning within 120 hours after discharge was conducted in an Italian university children's hospital between October 2012 and April 2013...
October 6, 2016: Pediatric Emergency Care
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