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https://www.readbyqxmd.com/read/29203496/extended-linkers-improve-the-detection-of-ppis-by-dhfr-pca-in-living-cells
#1
Andree-Eve Chretien, Isabelle Gagnon-Arsenault, Alexandre K Dubé, Xavier Barbeau, Philippe C Després, Claudine Lamothe, Anne-Marie Dion-Coté, Patrick Lague, Christian Landry
Understanding the function of cellular systems requires describing how proteins assemble with each other into transient and stable complexes and to determine their spatial relationships. Among the tools available to perform these analyses on a large scale is the Protein-fragment Complementation Assay based on the dihydrofolate reductase (DHFR PCA). Here we test how longer linkers between the fusion proteins and the reporter fragments affect the performance of this assay. We investigate the architecture of the RNA polymerases, the proteasome and the conserved oligomeric Golgi (COG) complexes in living cells and performed large-scale screens with these extended linkers...
December 4, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29157366/culling-from-the-actors-perspectives-decision-making-criteria-for-culling-in-qu%C3%A3-bec-dairy-herds-enrolled-in-a-veterinary-preventive-medicine-program
#2
Denis Haine, Roger Cue, Asheber Sewalem, Kevin Wade, René Lacroix, Daniel Lefebvre, Jonathan Rushton, Julie Arsenault, Émile Bouchard, Jocelyn Dubuc
The series of events leading to the decision to cull a cow is complex, involving both individual-level and herd-level factors. While the decision is guided by financial returns, it is also influenced by social and psychological factors. Research studies on the motivational and behavioural aspects of farmers' decision utility are sparse, and nonexistent regarding culling expectations and its decision process. Our goal was to identify shared criteria on culling decisions held by dairy producers and farm advisers, with the help of the Q-methodology...
December 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29138462/the-antibacterial-and-anti-inflammatory-activity-of-chicken-cathelicidin-2-combined-with-exogenous-surfactant-for-the-treatment-of-cystic-fibrosis-associated-pathogens
#3
Brandon J H Banaschewski, Brandon Baer, Christina Arsenault, Teah Jazey, Edwin J A Veldhuizen, Johan Delport, Tracey Gooyers, James F Lewis, Henk P Haagsman, Ruud A W Veldhuizen, Cory Yamashita
Cystic fibrosis (CF) is characterized by recurrent airway infections with antibiotic-resistant bacteria and chronic inflammation. Chicken cathelicin-2 (CATH-2) has been shown to exhibit antimicrobial activity against antibiotic-resistant bacteria and to reduce inflammation. In addition, exogenous pulmonary surfactant has been suggested to enhance pulmonary drug delivery. It was hypothesized that CATH-2 when combined with an exogenous surfactant delivery vehicle, bovine lipid extract surfactant (BLES), would exhibit antimicrobial activity against CF-derived bacteria and downregulate inflammation...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29110186/patient-safety-ward-round-checklist-via-an-electronic-app-implications-for-harm-prevention
#4
C Keller, S Arsenault, M Lamothe, S R Bostan, R O'Donnell, J Harbison, C P Doherty
INTRODUCTION: Patient safety is a value at the core of modern healthcare. Though awareness in the medical community is growing, implementing systematic approaches similar to those used in other high reliability industries is proving difficult. The aim of this research was twofold, to establish a baseline for patient safety practices on routine ward rounds and to test the feasibility of implementing an electronic patient safety checklist application. METHODS: Two research teams were formed; one auditing a medical team to establish a procedural baseline of "usual care" practice and an intervention team concurrently was enforcing the implementation of the checklist...
November 6, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29103916/effect-of-atorvastatin-cholesterol-ester-transfer-protein-inhibition-and-diabetes-mellitus-on-circulating-proprotein-subtilisin-kexin-type-9-and-lipoprotein-a-levels-in-patients-at-high-cardiovascular-risk
#5
Benoit J Arsenault, Francine Petrides, Fatiha Tabet, Weihang Bao, G Kees Hovingh, S Matthijs Boekholdt, Stéphane Ramin-Mangata, Olivier Meilhac, David DeMicco, Kerry-Anne Rye, David D Waters, John J P Kastelein, Philip Barter, Gilles Lambert
BACKGROUND: Proprotein subtilisin kexin type 9 (PCSK9) and lipoprotein (a) [Lp(a)] levels are causative risk factors for coronary heart disease. OBJECTIVES: The objective of the study was to determine the impact of lipid-lowering treatments on circulating PCSK9 and Lp(a). METHODS: We measured PCSK9 and Lp(a) levels in plasma samples from Investigation of Lipid Level Management to Understand its Impact in Atherosclerotic Events trial patients with coronary heart disease and/or type II diabetes (T2D) mellitus...
October 12, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29100654/do-oxidized-lipoproteins-cause-atherosclerotic-cardiovascular-diseases
#6
EDITORIAL
Benoit J Arsenault, Raphaëlle Bourgeois, Patrick Mathieu
No abstract text is available yet for this article.
October 6, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29094623/problem-analysis-in-community-violence-assessment-revealing-early-childhood-trauma-as-a-driver-of-youth-and-gang-violence
#7
Laurie Ross, Samantha Arsenault
Problem analysis conducted by a university-based research partner can provide communities with data-driven options to address the local drivers of serious youth and gang violence. Situated in Worcester, Massachusetts, this article describes how subsequent to early childhood trauma being identified as a potential driver of adolescent and young adult violence; problem analysis using local data confirmed that being the victim or witness of a traumatic incident before the age of 12 years was significantly correlated with involvement in violence in adolescence or young adulthood...
November 1, 2017: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/29092112/early-activation-of-growth-pathways-in-mitral-leaflets-exposed-to-aortic-regurgitation-new-insights-from-an-animal-model
#8
Ons Marsit, Olivier Royer, Marie-Claude Drolet, Marie Arsenault, Jacques Couet, Stéphane Morin, Robert A Levine, Philippe Pibarot, Jonathan Beaudoin
BACKGROUND: Mitral leaflet enlargement in patients with chronic aortic regurgitation (AR) has been identified as an adaptive mechanism potentially able to prevent functional mitral regurgitation (FMR) in response to left ventricular (LV) dilatation. The timing of valve enlargement is not known, and the related mechanisms are largely unexplored. METHODS: AR was induced in 58 rats, and another 54 were used as sham controls. Animals were euthanized at different time points after AR creation (48 h, one week, and three months), and AR severity, FMR and LV dilatation were assessed using echocardiography...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29083303/deep-transcriptome-annotation%C3%A2-enables-the-discovery-and-functional-characterization-of-cryptic-small-proteins
#9
Sondos Samandi, Annie V Roy, Vivian Delcourt, Jean-François Lucier, Jules Gagnon, Maxime C Beaudoin, Benoît Vanderperre, Marc-André Breton, Julie Motard, Jean-François Jacques, Mylène Brunelle, Isabelle Gagnon-Arsenault, Isabelle Fournier, Aïda Ouangraoua, Darel J Hunting, Alan A Cohen, Christian R Landry, Michelle S Scott, Xavier Roucou
Recent functional, proteomic and ribosome profiling studies in eukaryotes have concurrently demonstrated the translation of alternative open reading frames (altORFs) in addition to annotated protein coding sequences (CDSs). We show that a large number of small proteins could in fact be coded by these altORFs. The putative alternative proteins translated from altORFs have orthologs in many species and contain functional domains. Evolutionary analyses indicate that altORFs often show more extreme conservation patterns than their CDSs...
October 30, 2017: ELife
https://www.readbyqxmd.com/read/29079561/forward-left-ventricular-ejection-fraction-a-simple-risk-marker-in-patients-with-primary-mitral-regurgitation
#10
Marlène Dupuis, Haïfa Mahjoub, Marie-Annick Clavel, Nancy Côté, Oumhani Toubal, Lionel Tastet, Jean G Dumesnil, Kim O'Connor, Abdellaziz Dahou, Christophe Thébault, Catherine Bélanger, Jonathan Beaudoin, Marie Arsenault, Mathieu Bernier, Philippe Pibarot
BACKGROUND: The timing of mitral valve surgery in asymptomatic patients with primary mitral regurgitation (MR) is controversial. We hypothesized that the forward left ventricular (LV) ejection fraction (LVEF; ie, LV outflow tract stroke volume divided by LV end-diastolic volume) is superior to the total LVEF to predict outcomes in MR. The objective of this study was to examine the association between echocardiographic parameters of MR severity and LV function and outcomes in patients with MR...
October 27, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29077905/influence-of-different-yeast-cell-wall-preparations-and-their-components-on-performance-and-immune-and-metabolic-pathways-in-clostridium-perfringens-challenged-broiler-chicks
#11
Mohammed M Hashim, Ryan J Arsenault, James A Byrd, Michael H Kogut, Morouj Al-Ajeeli, Christopher A Bailey
A study was conducted to evaluate the influence of the purification of yeast cell wall (YCW) preparations on broiler performance and immunogenic and metabolic pathways under microbial challenge. A total of 240 (day old) chicks were distributed among two battery brooder units (48 pens; 5 birds/pen; 8 replicates/treatment). A basal starter diet was divided into 5 batches to create 6 dietary treatments; non-challenge (NCh-C) and challenge (Ch-C) controls, semi-purified YCW containing cytosol contents (SPYCW; 250 mg/kg), purified YCW (PYCW; 250 mg/kg), 50% purified beta-glucan (BG; 130 mg/kg), and 99...
October 25, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053819/changes-in-immune-and-metabolic-gut-response-in-broilers-fed-%C3%AE-mannanase-in-%C3%AE-mannan-containing-diets
#12
R J Arsenault, J T Lee, R Latham, B Carter, M H Kogut
β-galactomannans found in soy-based broiler feed are known to cause physiological effects that are hypothesized to be related to gut inflammation. Previous studies have shown that the incorporation of β-mannanase in the diet or as a supplement results in improvements to certain performance parameters related to gut health and feed conversion. Using kinome analysis, we characterized the mechanism of β-galactomannan activity and supplementation with β-mannanase on the gut of commercial broilers to understand the mode of action...
September 14, 2017: Poultry Science
https://www.readbyqxmd.com/read/28973091/association-of-paravalvular-regurgitation-with-1-year-outcomes-after-transcatheter-aortic-valve-replacement-with-the-sapien-3-valve
#13
Philippe Pibarot, Rebecca T Hahn, Neil J Weissman, Marie Arsenault, Jonathan Beaudoin, Mathieu Bernier, Abdellaziz Dahou, Omar K Khalique, Federico M Asch, Oumhani Toubal, Jonathon Leipsic, Philipp Blanke, Feifan Zhang, Rupa Parvataneni, Maria Alu, Howard Herrmann, Raj Makkar, Michael Mack, Richard Smalling, Martin Leon, Vinod H Thourani, Susheel Kodali
Importance: Moderate/severe and even mild paravalvular regurgitation (PVR) are associated with increased mortality following transcatheter aortic valve replacement (TAVR) with first and second generations of transcatheter valves. Objective: To examine the incidence, evolution, and effect on 1-year outcomes of PVR following TAVR with a third-generation balloon-expandable transcatheter heart valve. Design, Setting, and Participants: Prespecified analysis of PVR in the Placement of Aortic Transcatheter Valves (PARTNER) II SAPIEN 3 trial, conducted between October 1, 2013, and September 3, 2014...
November 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28956525/emerging-arboviruses-in-quebec-canada-assessing-public-health-risk-by-serology-in-humans-horses-and-pet-dogs
#14
J P Rocheleau, P Michel, L R Lindsay, M Drebot, A Dibernardo, N H Ogden, A Fortin, J Arsenault
Periodic outbreaks of West Nile virus (WNV), Eastern equine encephalitis virus (EEEV) and to a lesser extent, California serogroup viruses (CSGV), have been reported in parts of Canada in the last decade. This study was designed to provide a broad assessment of arboviral activity in Quebec, Canada, by conducting serological surveys for these arboviruses in 196 horses, 1442 dogs and 485 humans. Sera were screened by a competitive enzyme linked immunosorbent assay and positive samples confirmed by plaque reduction neutralisation tests...
October 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28938793/effects-of-protein-or-amino-acid-supplementation-on-the-physical-growth-of-young-children-in-low-income-countries
#15
Joanne E Arsenault, Kenneth H Brown
Child growth stunting is common in low-income countries, possibly due to insufficient protein intakes. Most previous studies have concluded that children's protein intakes are adequate in relation to estimated requirements, but these studies did not consider issues of protein digestibility and effects of infection on dietary protein utilization. Using an alternative approach to assess the possible role of protein inadequacy in children's growth restriction, the results of 18 intervention trials in which supplementary protein or amino acids were provided to children ages 6-35 months and growth outcomes were reviewed...
September 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28938493/acute-and-chronic-impact-of-bariatric-surgery-on-plasma-ldl-cholesterol-and-pcsk9-levels-in-patients-with-severe-obesity
#16
Marjorie Boyer, Marie-Eve Piché, Audrey Auclair, Thomas Grenier-Larouche, Laurent Biertho, Simon Marceau, Frédéric-Simon Hould, Simon Biron, Stéfane Lebel, Odette Lescelleur, François Julien, Julie Martin, André Tchernof, André C Carpentier, Paul Poirier, Benoit J Arsenault
Context: Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a key regulator of low-density lipoprotein cholesterol (LDL-C) concentrations. In patients with severe obesity, biliopancreatic diversion with duodenal switch (BPD-DS) surgery induces substantial weight loss and influences lipoprotein metabolism. The effect of BPD-DS on PCSK9 levels is unknown. Objectives: To determine the acute and chronic impact of BPD-DS on PCSK9 levels and whether the acute impact of BPD-DS could be explained by BPD-DS-associated caloric restriction (CR)...
November 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28902478/development-reliability-and-use-of-a-food-environment-assessment-tool-in-supermarkets-of-four-neighbourhoods-in-montr%C3%A3-al-canada
#17
Élise Jalbert-Arsenault, Éric Robitaille, Marie-Claude Paquette
INTRODUCTION: The food environment is a promising arena in which to influence people's dietary habits. This study aimed to develop a comprehensive food environment assessment tool for businesses and characterize the food environment of a low-tomedium income area of Montréal, Canada. METHODS: We developed a tool, Mesure de l'environnement alimentaire du consommateur dans les supermarchés (MEAC-S), and tested it for reliability. We used the MEAC-S to assess the consumer food environment of 17 supermarkets in four neighbourhoods of Montréal...
September 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/28889112/interplay-between-cigarette-smoking-and%C3%A2-pulmonary-reverse-lipid-transport
#18
Éric Jubinville, Maude Talbot, Jean-Christophe Bérubé, Mélanie Hamel-Auger, Michaël Maranda-Robitaille, Marie-Josée Beaulieu, Sophie Aubin, Marie-Ève Paré, David G Kallend, Benoit Arsenault, Yohan Bossé, Mathieu C Morissette
Reverse lipid transport is critical to maintain homeostasis. Smoking causes lipid accumulation in macrophages, therefore suggesting suboptimal reverse lipid transport mechanisms. In this study, we investigated the interplay between smoking and reverse lipid transport and the consequences on smoking-induced lung and peripheral alterations.To investigate the relationship between smoking and reverse lipid transport, we used a clinical lung gene expression dataset and a mouse model of cigarette smoke exposure. We also used ApoA-1(-/-) mice, with reduced reverse lipid transport capacity, and a recombinant ApoA-1 Milano/phospholipid complex (MDCO-216) to boost reverse lipid transport...
September 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28885538/clinical-relevance-of-18f-fdg-pet-ct-lower-limb-imaging-in-patients-with-malignant-cutaneous-melanoma
#19
Nicolas Plouznikoff, Frédéric Arsenault
OBJECTIVE: The aim of this study was to assess the clinical relevance of imaging the lower limbs when using 2-(F)-fluoro-2-deoxy-D-glucose (F-FDG) positron emission tomography with computed tomography (PET/CT) for malignant cutaneous melanoma in patients without previously known or suspected primary or metastatic melanoma lesions in the lower limbs. PATIENTS AND METHODS: We retrospectively assessed 880 consecutive F-FDG PET/CT scans performed for adult patients in a context of suspected melanoma spanning a period of 5 years...
December 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28858957/addressing-occupational-fatigue-in-nurses-current-state-of-fatigue-risk-management-in-hospitals-part-2
#20
Linsey M Steege, Barbara J Pinekenstein, Jessica G Rainbow, Élise Arsenault Knudsen
OBJECTIVE: The aim of this article is to describe the current state of fatigue risk management systems (FRMSs) to address nurse fatigue in hospitals. BACKGROUND: Little is known about the current state of FRMS implementation and adoption of national recommendations in nursing work systems. METHODS: This study used a sequential exploratory mixed-methods design including a survey of nurse leaders from across the United States. RESULTS: Adoption of evidence-based policies to address fatigue is both limited and variable depending on the policy...
October 2017: Journal of Nursing Administration
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