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https://www.readbyqxmd.com/read/28211066/how-computational-methods-and-relativistic-effects-influence-the-study-of-chemical-reactions-involving-ru-no-complexes
#1
Renato Pereira Orenha, Régis Tadeu Santiago, Roberto Luiz Andrade Haiduke, Sérgio Emanuel Galembeck
Two treatments of relativistic effects, namely effective core potentials (ECP) and all-electron scalar relativistic effects (DKH2), are used to obtain geometries and chemical reaction energies for a series of ruthenium complexes in B3LYP/def2-TZVP calculations. Specifically, the reaction energies of reduction (A-F), isomerization (G-I), and Cl(-) negative trans influence in relation to NH3 (J-L) are considered. The ECP and DKH2 approaches provided geometric parameters close to experimental data and the same ordering for energy changes of reactions A-L...
February 16, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28207311/prevalence-of-salmonella-in-cashews-hazelnuts-macadamia-nuts-pecans-pine-nuts-and-walnuts-in-the-united-states
#2
Guodong Zhang, Lijun Hu, David Melka, Hua Wang, Anna Laasri, Eric W Brown, Errol Strain, Marc Allard, Vincent K Bunning, Steven M Musser, Rhoma Johnson, Sofia M Santillana Farakos, Virginia N Scott, Régis Pouillot, Jane M Van Doren, Thomas S Hammack
Nuts have been identified as a vector for salmonellosis. The objective of this project was to estimate the prevalence and contamination level of Salmonella in raw tree nuts (cashews, pecans, hazelnuts, macadamia nuts, pine nuts, and walnuts) at retail markets in the United States. A total of 3,656 samples of six types of tree nuts were collected from different types of retail stores and markets nationwide between October 2014 and October 2015. These samples were analyzed using a modified version of the Salmonella culture method from the U...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28198185/irmpd-spectroscopy-sheds-new-infrared-light-on-the-sulfate-pattern-of-carbohydrates
#3
Baptiste Schindler, Loic Barnes, Christopher John Gray, Stéphane Chambert, Sabine L Flitsch, Jos Oomens, Régis Daniel, Abdul-Rahman Allouche, Isabelle Compagnon
IR spectroscopy of gas phase ions is proposed to resolve positional isomers of sulfated carbohydrates. Mass spectrometric fingerprints and gas phase vibrational spectra in the near and mid IR regions were obtained for sulfated monosaccharides, yielding unambiguous signatures of sulfated isomers. We report the first systematic exploration of the biologically relevant but notoriously challenging deprotonated state in the near IR region. Remarkably, anions displayed very atypical vibrational profiles, which challenge the well-established DFT (Density Functionnal Theory) modeling...
February 15, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28197703/contemporary-dual-mobility-cup-regional-and-private-register-methodology-and-results
#4
André Ferreira, Jean-Louis Prudhon, Régis Verdier, Jean-Marc Puch, Loys Descamps, Guy Dehri, Marcel Remi, Jacques H Caton
INTRODUCTION: The dual-mobility cup (DMC) was introduced in 1979. Due to lack of referenced publications, this interesting and innovating concept was ignored during close to 20 years. However, 180 studies (level III or IV) have now been published. Evidence-based medicine is based on level I studies. Over the past three decades, the role of national registries developed with the intention of surveying orthopaedic implants. In 2012, we developed, registered, and implemented a specific database for contemporary DMC...
February 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28196934/mortality-of-adult-critically-ill-subjects-with-cancer
#5
Regis Goulart Rosa, Tulio Frederico Tonietto, Bruno Achutti Duso, Juçara Gasparetto Maccari, Roselaine Pinheiro de Oliveira, William Rutzen, Laura Madeira, Aline Ascoli, Rachel Hessler, Paola Morandi, Ricardo Viegas Cremonese, Felippe Leopoldo Dexheimer Neto, Luciana Tagliari, Patrícia de Campos Balzano, José Hervê Diel Barth, Cassiano Teixeira
BACKGROUND: Cancer patients may require intensive care support for postoperative care, complications associated with underlying malignancy, or toxicities related to cancer therapy. The higher mortality rates found in this population than in the population of ICU patients without cancer may be attributable to confounding due to a higher prevalence of multiple organic dysfunctions at ICU admission in patients with malignancy; however, data regarding this hypothesis are scarce. Accordingly, we performed the present study to compare the crude and propensity score-matched mortality rates between adult subjects with and without cancer admitted to a mixed medical-surgical ICU...
February 14, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28194228/guidelines-for-the-management-of-neuroendocrine-tumours-by-the-brazilian-gastrointestinal-tumour-group
#6
Rachel P Riechelmann, Rui F Weschenfelder, Frederico P Costa, Aline Chaves Andrade, Alessandro Bersch Osvaldt, Ana Rosa P Quidute, Allan Dos Santos, Ana Amélia O Hoff, Brenda Gumz, Carlos Buchpiguel, Bruno S Vilhena Pereira, Delmar Muniz Lourenço Junior, Duilio Reis da Rocha Filho, Eduardo Antunes Fonseca, Eduardo Linhares Riello Mello, Fabio Ferrari Makdissi, Fabio Luiz Waechter, Francisco Cesar Carnevale, George B Coura-Filho, Gustavo Andrade de Paulo, Gustavo Colagiovanni Girotto, João Evangelista Bezerra Neto, João Glasberg, Jose Claudio Casali-da-Rocha, Juliana Florinda M Rego, Luciana Rodrigues de Meirelles, Ludhmila Hajjar, Marcos Menezes, Marcello D Bronstein, Marcelo Tatit Sapienza, Maria Candida Barisson Villares Fragoso, Maria Adelaide Albergaria Pereira, Milton Barros, Nora Manoukian Forones, Paulo Cezar Galvão do Amaral, Raphael Salles Scortegagna de Medeiros, Raphael L C Araujo, Regis Otaviano França Bezerra, Renata D'Alpino Peixoto, Samuel Aguiar, Ulysses Ribeiro, Tulio Pfiffer, Paulo M Hoff, Anelisa K Coutinho
Neuroendocrine tumours are a heterogeneous group of diseases with a significant variety of diagnostic tests and treatment modalities. Guidelines were developed by North American and European groups to recommend their best management. However, local particularities and relativisms found worldwide led us to create Brazilian guidelines. Our consensus considered the best feasible strategies in an environment involving more limited resources. We believe that our recommendations may be extended to other countries with similar economic standards...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28194127/interpersonal-coordination-and-individual-organization-combined-with-shared-phenomenological-experience-in-rowing-performance-two-case-studies
#7
Ludovic Seifert, Julien Lardy, Jérôme Bourbousson, David Adé, Antoine Nordez, Régis Thouvarecq, Jacques Saury
The principal aim of this study was to examine the impact of variability in interpersonal coordination and individual organization on rowing performance. The second aim was to analyze crew phenomenology in order to understand how rowers experience their joint actions when coping with constraints emerging from the race. We conducted a descriptive and exploratory study of two coxless pair crews during a 3000-m rowing race against the clock. As the investigation was performed in an ecological context, we postulated that our understanding of the behavioral dynamics of interpersonal coordination and individual organization and the variability in performance would be enriched through the analysis of crew phenomenology...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28193098/nanoparticle-formulation-increases-syzygium-cumini-antioxidant-activity-in-candida-albicans-infected-diabetic-rats
#8
Paula E R Bitencourt, Lariane O Cargnelutti, Carolina S Stein, Raquel Lautenchleger, Luana M Ferreira, Manuela Sangoi, Laura Denardi, Raphaela M Borges, Aline Boligon, Rafael N Moresco, Letícia Cruz, Régis A Zanette, Sydney H Alves, Maria Beatriz Moretto
CONTEXT: Syzygium cumini (L.) Skeels (Myrtaceae) is a medicinal plant widely used in folk medicine for the treatment of diabetes mellitus (DM). However, studies on the use of this plant and of nanoparticle formulations against DM-related fungal infections are scarce. OBJECTIVE: To evaluate the effect of the treatments with aqueous seed extract of S. cumini (ASc) and ASc-loaded polymeric nanoparticles (NPASc) on biochemical parameters in Candida albicans-infected diabetic rats...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28188558/rationale-for-a-preliminary-operational-definition-of-physical-frailty-and-sarcopenia-in-the-sprintt-trial
#9
Matteo Cesari, Francesco Landi, Riccardo Calvani, Antonio Cherubini, Mauro Di Bari, Patrick Kortebein, Susanna Del Signore, Regis Le Lain, Bruno Vellas, Marco Pahor, Ronenn Roubenoff, Roberto Bernabei, Emanuele Marzetti
In the present article, the rationale that guided the operationalization of the theoretical concept of physical frailty and sarcopenia (PF&S), the condition of interest for the "Sarcopenia and Physical Frailty in Older People: Multicomponent Treatment Strategies" (SPRINTT) trial, is presented. In particular, the decisions lead to the choice of the adopted instruments, and the reasons for setting the relevant thresholds are explained. In SPRINTT, the concept of physical frailty is translated with a Short Physical Performance Battery score of ≥3 and ≤9...
February 10, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28182569/chronic-obstructive-pulmonary-disease-exacerbation-and-inhaler-device-handling-real-life-assessment-of-2935-patients
#10
Mathieu Molimard, Chantal Raherison, Severine Lignot, Aurelie Balestra, Stephanie Lamarque, Anais Chartier, Cecile Droz-Perroteau, Regis Lassalle, Nicholas Moore, Pierre-Olivier Girodet
Acute exacerbations of chronic obstructive pulmonary disease (COPD) can be prevented by inhaled treatment. Errors in inhaler handling, not taken into account in clinical trials, could impact drug delivery and minimise treatment benefit. We aimed to assess real-life inhaler device handling in COPD patients and its association with COPD exacerbations.To this end, 212 general practitioners and 50 pulmonologists assessed the handling of 3393 devices used for continuous treatment of COPD in 2935 patients. Handling errors were observed in over 50% of handlings, regardless of the device used...
February 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28180990/asymmetrical-flow-field-flow-fractionation-of-white-wine-chromophoric-colloidal-matter
#11
Christian Coelho, Jérémie Parot, Michael Gonsior, Maria Nikolantonaki, Philippe Schmitt-Kopplin, Edith Parlanti, Régis D Gougeon
Two analytical separation methods-size-exclusion chromatography and asymmetrical flow field-flow fractionation-were implemented to evaluate the integrity of the colloidal composition of Chardonnay white wine and the impact of pressing and fermentations on the final macromolecular composition. Wine chromophoric colloidal matter, representing UV-visible-absorbing wine macromolecules, was evaluated by optical and structural measurements combined with the description of elution profiles obtained by both separative techniques...
February 8, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28169059/the-diagnostic-sensitivity-of-circulating-cardio-enriched-micrornas-is-increased-after-normalization-of-high-density-lipoprotein-levels
#12
Thrishila Parshu Ram, Ingrid Fomison-Nurse, Sophie Gandhi, Sean Coffey, Pankaj Saxena, Ivor Galvin, Richard Bunton, Michael J A Williams, Regis R Lamberts, Rajesh Katare
BACKGROUND: Emerging evidence suggests that microRNAs (miRs) could be a potential biomarker to identify early molecular alterations in the heart. HDL are the major carriers for miRs into the circulation. This study tested whether changes in the level of HDL could affect the diagnostic sensitivity of miRs. METHODS AND RESULTS: Peripheral blood samples were collected from 20 diabetic and 22 age and gender matched non-diabetic patients undergoing coronary artery bypass graft (CABG) surgery for ischemic heart disease (IHD)...
January 26, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28168857/trends-in-breast-cancer-surgery-at-brazil-s-public-health-system
#13
Ruffo Freitas-Júnior, Debora Melo Gagliato, João Wesley Cabral Moura Filho, Pollyana Alves Gouveia, Rosemar Macedo Sousa Rahal, Régis Resende Paulinelli, Luis Fernando Pádua Oliveira, Paola Ferreira Freitas, Edesio Martins, Cicero Urban, Clécio Ênio Murta Lucena
BACKGROUND AND OBJECTIVES: To analyze time trend patterns in Breast Cancer (BC) surgeries performed at Brazil's Public Health System, known as SUS from 2008 to 2014. METHODS: Ecological study of time series, based on the database system from SUS. Information on surgical procedures performed for BC treatment was collected. Analysis of the absolute number of surgeries was performed using Poisson Regression through Jointpoint Regression, and the trends were calculated through the annual percentage change (APC), with a confidence interval (CI) of 95%, and statistical significance when P < 0...
February 6, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28165238/well-defined-molybdenum-oxo-alkyl-complex-supported-on-silica-by-surface-organometallic-chemistry-a-highly-active-olefin-metathesis-precatalyst
#14
Nicolas Merle, Frédéric Le Quéméner, Yassine Bouhoute, Kai C Szeto, Aimery De Mallmann, Samir Barman, Manoja K Samantaray, Laurent Delevoye, Régis M Gauvin, Mostafa Taoufik, Jean-Marie Basset
The well-defined silica-supported molybdenum oxo alkyl species (≡SiO-)MoO(CH2(t)Bu)3 was selectively prepared by grafting of MoO(CH2(t)Bu)3Cl onto partially dehydroxylated silica (silica700) using the surface organometallic chemistry approach. This surface species was fully characterized by elemental analysis and DRIFT, solid-state NMR, and EXAFS spectroscopy. This new material is related to the active species of industrial supported MoO3/SiO2 olefin metathesis catalysts. It displays very high activity in propene self-metathesis at mild (turnover number = 90 000 after 25 h)...
February 6, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28164307/how-to-quantify-microparticles-in-rbcs-a-validated-flow-cytometry-method-allows-the-detection-of-an-increase-in-microparticles-during-storage
#15
Clémentine Gamonet, Guillaume Mourey, Sophie Aupet, Sabéha Biichle, Régis Petitjean, Chrystelle Vidal, Aurore Pugin, Christian Naegelen, Pierre Tiberghien, Pascal Morel, Fanny Angelot-Delettre, Estelle Seilles, Philippe Saas, Laurent Bardiaux, Francine Garnache-Ottou
BACKGROUND: The procoagulant and proinflammatory microparticles (MPs) released during storage of packed red blood cells (pRBCs) can potentially modify transfusion benefits. A robust method to quantify MPs in pRBCs is needed to evaluate their impact in clinical trials. STUDY DESIGN AND METHODS: The objective was to validate the preanalytic conditions required to prepare pRBC supernatant as well as a method to quantify and evaluate MP variations over 42 days of pRBC storage...
February 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28153207/vitamin-d-deficiency-in-type-1-narcolepsy-a-reappraisal
#16
Yves Dauvilliers, Elisa Evangelista, Regis Lopez, Lucie Barateau, Sabine Scholz, Barbara Crastes de Paulet, Bertrand Carlander, Isabelle Jaussent
OBJECTIVES: Narcolepsy type 1 (NT1) is considered to be an immune-mediated disease in which environmental factors, such as vitamin D, might play a major role. The association between NT1 and vitamin D deficiency has previously been reported. The aim of this case-control study was to reassess vitamin D levels in a large clinic-based adult and paediatric population of patients with NT1 by considering several potential confounding factors. METHODS: The serum level of 25-hydroxyvitamin D (25OHD) was measured in 174 Caucasian patients with NT1 and 174 controls...
January 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28152669/psychometric-properties-and-factor-structure-of-the-short-form-of-the-affective-lability-scale-in-adult-patients-with-adhd
#17
Sébastien Weibel, Jean-Arthur Micoulaud-Franchi, Laura Brandejsky, Régis Lopez, Paco Prada, Rosetta Nicastro, Stefano Ardu, Alexandre Dayer, Christophe Lançon, Nader Perroud
OBJECTIVE: Affective lability is an important dimension of adult ADHD, associated with marked impairments and worse outcomes. A valid and quick tool to measure affective lability may therefore be of interest. METHOD: In 187 adult ADHD patients, we explored psychometric properties of the Affective Lability Scale-Short Form (ALS-18 items). We analyzed the construct validity and the external validity of the scale. Patients were compared with 48 healthy adult controls...
February 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28149687/allometry-of-sexual-size-dimorphism-in-turtles-a-comparison-of-mass-and-length-data
#18
Koy W Regis, Jesse M Meik
BACKGROUND: The macroevolutionary pattern of Rensch's Rule (positive allometry of sexual size dimorphism) has had mixed support in turtles. Using the largest carapace length dataset and only large-scale body mass dataset assembled for this group, we determine (a) whether turtles conform to Rensch's Rule at the order, suborder, and family levels, and (b) whether inferences regarding allometry of sexual size dimorphism differ based on choice of body size metric used for analyses. METHODS: We compiled databases of mean body mass and carapace length for males and females for as many populations and species of turtles as possible...
2017: PeerJ
https://www.readbyqxmd.com/read/28146103/role-of-quinone-reductase-2-in-the-antimalarial-properties-of-indolone-type-derivatives
#19
Laure-Estelle Cassagnes, Nambinina Rakotoarivelo, Serena Sirigu, Pierre Pério, Ennaji Najahi, Léonard M G Chavas, Andrew Thompson, Régis Gayon, Gilles Ferry, Jean A Boutin, Alexis Valentin, Karine Reybier, Françoise Nepveu
Indolone-N-oxides have antiplasmodial properties against Plasmodium falciparum at the erythrocytic stage, with IC50 values in the nanomolar range. The mechanism of action of indolone derivatives involves the production of free radicals, which follows their bioreduction by an unknown mechanism. In this study, we hypothesized that human quinone reductase 2 (hQR2), known to act as a flavin redox switch upon binding to the broadly used antimalarial chloroquine, could be involved in the activity of the redox-active indolone derivatives...
January 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28144912/sprintt-and-the-involvement-of-stakeholders-strategy-and-structure
#20
Régis Le Lain, Claire Ignaszewski, Ingrid Klingmann, Alfredo Cesario, Willem Ivo de Boer
The current healthcare systems are built around the traditional paradigm of patients suffering from a single acute illness. They are, therefore, largely unprepared to face the increasing demands for health services arising from the expansion of an older population with specific medical needs related to multiple chronic disorders. As a consequence, the medical conditions of a large and growing segment of the older European population are not efficiently managed by the available healthcare services. In the context of an aging population, policy makers such as the European Commission and European Institutions, such as the European Medicines Agency (EMA), devote time and resources to study and accompany the need of the aging population...
January 31, 2017: Aging Clinical and Experimental Research
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