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https://www.readbyqxmd.com/read/28819101/hypotension-in-icu-patients-receiving-vasopressor-therapy
#1
Bryce Yapps, Sungtae Shin, Ramin Bighamian, Jill Thorsen, Colleen Arsenault, Sadeq A Quraishi, Jin-Oh Hahn, Andrew T Reisner
Vasopressor infusion (VPI) is used to treat hypotension in an ICU. We studied compliance with blood pressure (BP) goals during VPI and whether a statistical model might be efficacious for advance warning of impending hypotension, compared with a basic hypotension threshold alert. Retrospective data were obtained from a public database. Studying adult ICU patients receiving VPI at submaximal dosages, we analyzed characteristics of sustained hypotension episodes (>15 min) and then developed a logistic regression model to predict hypotension episodes using input features related to BP trends...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28816078/pathobiology-of-lp-a-in-calcific-aortic-valve-disease
#2
Patrick Mathieu, Benoit J Arsenault, Marie-Chloé Boulanger, Yohan Bossé, Marlys L Koschinsky
Calcific aortic valve disease (CAVD) is the most prevalent heart valve disorder. Gene variant in the LPA gene, which encodes for apolipoprotein(a), has been associated at the genome-wide level with CAVD. The process whereby Lp(a) promotes the development of CAVD is under intensive investigation and recent data have shed important insights into disease biology. In this regard, autotaxin (ATX), a lysophospholipase D, interacts with Lp(a) and promotes the mineralization of the aortic valve. Areas covered: In this paper, we are reviewing the biology of Lp(a) and the latest discoveries about the molecular processes that link this lipoprotein with the development of CAVD including the role of ATX...
August 17, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28796024/addressing-occupational-fatigue-in-nurses-current-state-of-fatigue-risk-management-in-hospitals-part-1
#3
Linsey M Steege, Barbara J Pinekenstein, Jessica G Rainbow, Élise Arsenault Knudsen
OBJECTIVE: The aim of this study was to describe the current state of fatigue risk management systems (FRMS) to address nurse fatigue in hospitals. BACKGROUND: Although multiple studies have examined sources and consequences of fatigue, little is known about the current state of FRMS. METHODS: This study used a sequential exploratory mixed-method design including a survey of nurse leaders from across the United States. FINDINGS: Although healthcare organizations have implemented strategies to address fatigue, most participants' organizations did not have a formal FRMS in place...
August 8, 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28768102/chemical-approaches-to-intervening-in-ubiquitin-specific-protease-7-usp7-function-for-oncology-and-immune-oncology-therapies
#4
Jian Wu, Suresh Kumar, Feng Wang, Hui Wang, Lijia Chen, Patrick Arsenault, Michael Mattern, Joseph Weinstock
USP7, the most widely studied among the nearly 100 deubiquitinating enzymes, supports cancer by positively affecting tumor growth and negatively affecting the patient's immune response to tumors. Great interest exists, therefore, in developing USP7 inhibitors for clinical evaluation. While the proteasome inhibitor field has enjoyed clinical success, very few clinically appropriate effectors of deubiquitinating (protease) or ubiquitinating (ligase) enzymes have appeared. The ubiquitin protease/ligase field is moving from the initial discovery of potent, selective modulators with cell proof of concept and/or in vivo activity to the optimization of these molecules to impart drug-like properties or the discovery of new inhibitor scaffolds by improved screening or rational design...
August 2, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28735508/initiating-insulin-how-to-help-people-with-type-2-diabetes-start-and-continue-insulin-successfully
#5
William H Polonsky, Joyce Arsenault, Lawrence Fisher, Pamela Kushner, Eden M Miller, Teresa L Pearson, Mariusz Tracz, Stewart Harris, Norbert Hermanns, Bernd-M Scholz, Robyn K Pollom, Magaly Perez-Nieves, Roy Daniel Pollom, Irene Hadjiyianni
No abstract text is available yet for this article.
July 23, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28732315/total-and-ionized-magnesium-testing-in-the-surgical-intensive-care-unit-opportunities-for-improved-laboratory-and-pharmacy-utilization
#6
Daniel Dante Yeh, Nalin Chokengarmwong, Yuchiao Chang, Liyang Yu, Colleen Arsenault, Joseph Rudolf, Elizabeth Lee-Lewandrowski, Kent Lewandrowski
PURPOSE: Ionized fraction (iMg) is the physiologically active form of magnesium (Mg); total Mg may not accurately reflect iMg status. Erroneously "low" Mg levels may result in unnecessary repetitive testing. MATERIALS AND METHODS: From 11/2015 to 01/2016, patients ordered for Mg from a pilot ICU also had iMg tested. Weighted kappa statistic was used to assess agreement between Mg categories (low, normal, high). Predictors of unnecessary repeated Mg testing and repletion using data were explored through logistic regression models using GEE techniques to account for repeated measurements in both bivariate and multivariable analyses...
July 11, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28716206/contextual-herd-factors-associated-with-cow-culling-risk-in-qu%C3%A3-bec-dairy-herds-a-multilevel-analysis
#7
Denis Haine, Hector Delgado, Roger Cue, Asheber Sewalem, Kevin Wade, René Lacroix, Daniel Lefebvre, Julie Arsenault, Émile Bouchard, Jocelyn Dubuc
Several health disorders, such as milk fever, displaced abomasum, and mastitis, as well as impaired reproductive performance, are known risk factors for the removal of affected cows from a dairy herd. While cow-level risk factors are well documented in the literature, herd-level associations have been less frequently investigated. The objective of this study was to investigate the effect of cow- and herd-level determinants on variations in culling risk in Québec dairy herds: whether herd influences a cow's culling risk...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28641153/lipoprotein-a-and-coronary-atheroma-progression-rates-during-long-term-high-intensity-statin-therapy-insights-from-saturn
#8
Rishi Puri, Christie M Ballantyne, Ron C Hoogeveen, Mingyuan Shao, Philip Barter, Peter Libby, M John Chapman, Raimund Erbel, Benoit J Arsenault, Joel S Raichlen, Steven E Nissen, Stephen J Nicholls
BACKGROUND & AIMS: Lipoprotein(a) [Lp(a)] is a low-density lipoprotein (LDL)-like particle that associates with major adverse cardiovascular events (MACE). We examined relationships between Lp(a) measurements and changes in coronary atheroma volume following long-term maximally-intensive statin therapy in coronary artery disease patients. METHODS: Study of coronary atheroma by intravascular ultrasound: Effect of Rosuvastatin Versus Atorvastatin (SATURN) used serial intravascular ultrasound measures of coronary atheroma volume in patients treated with rosuvastatin 40 mg or atorvastatin 80 mg for 24 months...
June 15, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28635961/hypoxia-induced-mobilization-of-nhe6-to-the-plasma-membrane-triggers-endosome-hyperacidification-and-chemoresistance
#9
Fabrice Lucien, Pierre-Paul Pelletier, Roxane R Lavoie, Jean-Michel Lacroix, Sébastien Roy, Jean-Luc Parent, Dominique Arsenault, Kelly Harper, Claire M Dubois
The pH-dependent partitioning of chemotherapeutic drugs is a fundamental yet understudied drug distribution mechanism that may underlie the low success rates of current approaches to counter multidrug resistance (MDR). This mechanism is influenced by the hypoxic tumour microenvironment and results in selective trapping of weakly basic drugs into acidified compartments such as the extracellular environment. Here we report that hypoxia not only leads to acidification of the tumour microenvironment but also induces endosome hyperacidification...
June 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28633691/dietary-gap-assessment-an-approach-for-evaluating-whether-a-country-s-food-supply-can-support-healthy-diets-at-the-population-level
#10
Edye M Kuyper, Reina Engle-Stone, Joanne E Arsenault, Mary Arimond, Katherine P Adams, Kathryn G Dewey
OBJECTIVE: Dietary diversity, and in particular consumption of nutrient-rich foods including fruits, vegetables, nuts, beans and animal-source foods, is linked to greater nutrient adequacy. We developed a 'dietary gap assessment' to evaluate the degree to which a nation's food supply could support healthy diets at the population level. Design/Setting In the absence of global food-based dietary guidelines, we selected the Dietary Approaches to Stop Hypertension (DASH) diet as an example because there is evidence it prevents diet-related chronic disease and supports adequate micronutrient intakes...
June 21, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28622823/does-behavioral-health-integration-improve-primary-care-providers-perceptions-of-health-care-system-functioning-and-their-own-knowledge
#11
Leah Zallman, Robert Joseph, Colleen O'Brien, Emily Benedetto, Ellie Grossman, Lisa Arsenault, Assaad Sayah
OBJECTIVE: To examine the impact of behavioral health integration (BHI) on primary care providers' (PCPs') (1) perceptions of behavioral health (BH)-primary care (PC) system functioning and (2) perceptions of their own knowledge regarding how to manage, triage, and access help in caring for patients with mental health conditions and substance use disorders. METHODS: We implemented BHI based on evidence-based models consisting of seven elements: (1)Screening for mental health and substance use disorders, (2)Training of PC teams, (3)Integration of BH providers into PC teams, (4)Roll-out of unlicensed mental health care managers and establishment of a BH registry, (5)Psychiatry consult service, (6)Site-based BHI meetings, and (7)Site self assessments...
May 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28608806/targeting-overconsumption-of-sugar-sweetened-beverages-vs-overall-poor-diet-quality-for-cardiometabolic-diseases-risk-prevention-place-your-bets
#12
REVIEW
Benoit J Arsenault, Benoît Lamarche, Jean-Pierre Després
Chronic overconsumption of sugar-sweetened beverages (SSBs) is amongst the dietary factors most consistently found to be associated with obesity, type 2 diabetes (T2D) and cardiovascular disease (CVD) risk in large epidemiological studies. Intervention studies have shown that SSB overconsumption increases intra-abdominal obesity and ectopic lipid deposition in the liver, and also exacerbates cardiometabolic risk. Similar to the prevalence of obesity and T2D, national surveys of food consumption have shown that chronic overconsumption of SSBs is skyrocketing in many parts of the world, yet with marked heterogeneity across countries...
June 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28604260/developing-high-functioning-teams-factors-associated-with-operating-as-a-real-team-and-implications-for-patient-centered-medical-home-development
#13
Somava Stout, Leah Zallman, Lisa Arsenault, Assaad Sayah, Karen Hacker
Team-based care is a foundation of health care redesign models like the patient-centered medical home (PCMH). Yet few practices rigorously examine how the implementation of PCMH relates to teamwork. We identified factors associated with the perception of a practice operating as a real team. An online workforce survey was conducted with all staff of 12 primary care sites of Cambridge Health Alliance at different stages of PCMH transformation. Bivariate and multivariate analyses of factors associated with teamwork perceptions were conducted...
January 1, 2017: Inquiry: a Journal of Medical Care Organization, Provision and Financing
https://www.readbyqxmd.com/read/28567032/recurring-necrotic-enteritis-outbreaks-in-commercial-broiler-chicken-flocks-strongly-influence-toxin-gene-carriage-and-species-richness-in-the-resident-clostridium-perfringens-population
#14
Marie-Lou Gaucher, Gabriel G Perron, Julie Arsenault, Ann Letellier, Martine Boulianne, Sylvain Quessy
Extensive use of antibiotic growth promoters (AGPs) in food animals has been questioned due to the globally increasing problem of antibiotic resistance. For the poultry industry, digestive health management following AGP withdrawal in Europe has been a challenge, especially the control of necrotic enteritis. Much research work has focused on gut health in commercial broiler chicken husbandry. Understanding the behavior of Clostridium perfringens in its ecological niche, the poultry barn, is key to a sustainable and cost-effective production in the absence of AGPs...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28522792/transgenic-autoinhibition-of-p21-activated-kinase-exacerbates-synaptic-impairments-and-fronto-dependent-behavioral-deficits-in-an-animal-model-of-alzheimer-s-disease
#15
Cyril Bories, Dany Arsenault, Myriam Lemire, Cyntia Tremblay, Yves De Koninck, Frédéric Calon
Defects in p21-activated kinase (PAK) lead to dendritic spine abnormalities and are sufficient to cause cognition impairment. The decrease in PAK in the brain of Alzheimer's disease (AD) patients is suspected to underlie synaptic and dendritic disturbances associated with its clinical expression, particularly with symptoms related to frontal cortex dysfunction. To investigate the role of PAK combined with Aβ and tau pathologies (3xTg-AD mice) in the frontal cortex, we generated a transgenic model of AD with a deficit in PAK activity (3xTg-AD-dnPAK mice)...
May 16, 2017: Aging
https://www.readbyqxmd.com/read/28472289/functional-similarity-of-medial-superior-parietal-areas-for-shift-selective-attention-signals-in-humans-and-monkeys
#16
Natalie Caspari, John T Arsenault, Rik Vandenberghe, Wim Vanduffel
We continually shift our attention between items in the visual environment. These attention shifts are usually based on task relevance (top-down) or the saliency of a sudden, unexpected stimulus (bottom-up), and are typically followed by goal-directed actions. It could be argued that any species that can covertly shift its focus of attention will rely on similar, evolutionarily conserved neural substrates for processing such shift-signals. To address this possibility, we performed comparative fMRI experiments in humans and monkeys, combining traditional, and novel, data-driven analytical approaches...
May 4, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28472283/oxldl-derived-lysophosphatidic-acid-promotes-the-progression-of-aortic-valve-stenosis-through-a-lpar1-rhoa-nf-%C3%AE%C2%BAb-pathway
#17
Mohamed Jalloul Nsaibia, Marie-Chloé Boulanger, Rihab Bouchareb, Ghada Mkannez, Khai Le Quang, Fayez Hadji, Deborah Argaud, Abdellaziz Dahou, Yohan Bossé, Marlys L Koschinsky, Philippe Pibarot, Benoit J Arsenault, André Marette, Patrick Mathieu
AIMS: Oxidatively modified lipoproteins may promote the development/progression of calcific aortic valve stenosis (CAVS). Oxidative transformation of low-density lipoprotein (OxLDL) generates lysophosphatidic acid (LPA), a lipid mediator that accumulates in mineralized aortic valves. LPA activates at least 6 different G protein-coupled receptors, which may play a role in the pathophysiology of CAVS. We hypothesized that LPA derived from OxLDL may promote a NF-κB signature that drives osteogenesis in the aortic valve...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28453620/cavd-civilization-aortic-valve-disease
#18
Patrick Mathieu, Benoit J Arsenault
No abstract text is available yet for this article.
April 26, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28421074/immunometabolic-phenotype-alterations-associated-with-the-induction-of-disease-tolerance-and-persistent-asymptomatic-infection-of-salmonella-in-the-chicken-intestine
#19
REVIEW
Michael H Kogut, Ryan J Arsenault
The adaptation of Salmonella enterica to the eukaryotic host is a key process that enables the bacterium to survive in a hostile environment. Salmonella have evolved an intimate relationship with its host that extends to their cellular and molecular levels. Colonization, invasion, and replication of the bacteria in an appropriate host suggest that modification of host functions is central to pathogenesis. Intuitively, this subversion of the cell must be a complex process, since hosts are not inherently programmed to provide an environment conducive to pathogens...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28408054/radiation-therapy-quality-indicators-for-invasive-breast-cancer
#20
Lara Best, Catherine de Metz, Ivo A Olivotto, Isabelle Roy, Tim Whelan, Julie Arsenault, Michael Brundage
BACKGROUND AND PURPOSE: Radiation therapy (RT) for breast cancer has evolved considerably over the past two decades. A concise list of optimal care indexes is lacking. The purpose of this project was to generate a suite of quality of care indicators for breast cancer RT. MATERIALS AND METHODS: A modified Delphi approach was used including a comprehensive literature and guideline review (1995-2015), an initial review of potential quality indicators (QIs) by a steering committee, a survey of Canadian Radiation Oncologists, and a face-to-face consensus development meeting with breast cancer experts to develop a list of breast RT quality indicators...
May 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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