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https://www.readbyqxmd.com/read/28213572/impact-of-expanding-the-prehospital-stroke-bypass-time-window-in-a-large-geographic-region
#1
Ian G Stiell, Catherine M Clement, Kristy Campbell, Mukul Sharma, Doug Socha, Marco L A Sivilotti, Albert Jin, Jeffrey J Perry, Jim Lumsden, Cally Martin, Mark Froats, Richard Dionne, John Trickett
BACKGROUND AND PURPOSE: The Ontario Acute Stroke Medical Redirect Paramedic Protocol (ASMRPP) was revised to allow paramedics to bypass to designated stroke centers if total transport time would be <2 hours and total time from symptom onset <3.5 hours. We sought to evaluate the impact and safety of implementing the Revised ASMRPP. METHODS: We conducted a 12-month implementation study involving prehospital patients presenting with possible stroke symptoms. A total of 1317 basic and advanced life support paramedics, of 9 land services in 10 rural counties and 5 cities, used the Revised ASMRPP to take appropriate patients directly to 6 designated stroke centers...
February 17, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28213057/utilization-of-sentinel-lymph-node-biopsy-for-uterine-cancer
#2
Jason D Wright, Stephanie Cham, Ling Chen, William M Burke, June Y Hou, Ana I Tergas, Vrunda Desai, Jim C Hu, Cande V Ananth, Alfred I Neugut, Dawn L Hershman
BACKGROUND: To limit the potential short and long-term morbidity of lymphadenectomy, sentinel lymph node (SLN) biopsy has been proposed for endometrial cancer. The principle of SLN biopsy relies on removal of a small number of lymph nodes that are the first drainage basins from a tumor and thus the most likely to harbor tumor cells. While the procedure may reduce morbidity, efficacy data is limited and little is known about how commonly the procedure is performed. OBJECTIVE: We examined the patterns and predictors of use of SLN biopsy and outcomes of the procedure in women with endometrial cancer who underwent hysterectomy...
February 14, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28212010/assessing-generic-collective-variables-for-determining-reaction-rates-in-metadynamics-simulations
#3
Christopher D Fu, Luiz F L Oliveira, Jim Pfaendtner
A persistent challenge in using the metadynamics method is deciding which degrees of freedom, or collective variables, should be biased because these selections are not obvious and require intuition about the system being studied. There are, however, collective variables, which can be constructed with only basic knowledge about the system studied, that provide an opportunity to alleviate this issue. We simulated two different reacting systems where two types of such collective variables (SPRINT coordinates and the collective variable-driven hyperdynamics method) were biased following the infrequent metadynamics method in order to recover the rates of reactions...
February 17, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28208040/bill-williams
#4
Tilman A Ruff, Jim S Rossiter
No abstract text is available yet for this article.
February 20, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28207729/proposed-new-industry-code-on-unhealthy-food-marketing-to-children-and-young-people-will-it-make-a-difference
#5
Boyd Swinburn, Stefanie Vandevijvere, Alistair Woodward, Andrew Hornblow, Ann Richardson, Barbara Burlingame, Barry Borman, Barry Taylor, Bernhard Breier, Bruce Arroll, Bernadette Drummond, Cameron Grant, Chris Bullen, Clare Wall, Cliona Ni Mhurchu, David Cameron-Smith, David Menkes, David Murdoch, Dee Mangin, Diana Lennon, Diana Sarfati, Doug Sellman, Elaine Rush, Faafetai Sopoaga, George Thomson, Gerry Devlin, Gillian Abel, Harvey White, Jane Coad, Janet Hoek, Jennie Connor, Jeremy Krebs, Jeroen Douwes, Jim Mann, John McCall, John Broughton, John D Potter, Les Toop, Lesley McCowan, Louise Signal, Lutz Beckert, Mark Elwood, Marlena Kruger, Mauro Farella, Michael Baker, Michael Keall, Murray Skeaff, Murray Thomson, Nick Wilson, Nicholas Chandler, Papaarangi Reid, Patricia Priest, Paul Brunton, Peter Crampton, Peter Davis, Philip Gendall, Philippa Howden-Chapman, Rachael Taylor, Richard Edwards, Robert Beaglehole, Robert Doughty, Robert Scragg, Robin Gauld, Robert McGee, Rod Jackson, Roger Hughes, Roger Mulder, Ruth Bonita, Rozanne Kruger, Sally Casswell, Sarah Derrett, Shanthi Ameratunga, Simon Denny, Simon Hales, Sue Pullon, Susan Wells, Tim Cundy, Tony Blakely
Reducing the exposure of children and young people to the marketing of unhealthy foods is a core strategy for reducing the high overweight and obesity prevalence in this population. The Advertising Standards Authority (ASA) has recently reviewed its self-regulatory codes and proposed a revised single code on advertising to children. This article evaluates the proposed code against eight criteria for an effective code, which were included in a submission to the ASA review process from over 70 New Zealand health professors...
February 17, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28207320/cardiac-findings-in-quarter-horses-with-heritable-equine-regional-dermal-asthenia
#6
Erin L Brinkman, Benjamin C Weed, Sourav S Patnaik, Bryn L Brazile, Ryan M Centini, Robert W Wills, Bari Olivier, Dodd G Sledge, Jim Cooley, Jun Liao, Ann M Rashmir-Raven
OBJECTIVE To compare biomechanical and histologic features of heart valves and echocardiographic findings between Quarter Horses with and without heritable equine regional dermal asthenia (HERDA). DESIGN Prospective case-control study. ANIMALS 41 Quarter Horses. PROCEDURES Ultimate tensile strength (UTS) of aortic and mitral valve leaflets was assessed by biomechanical testing in 5 horses with HERDA and 5 horses without HERDA (controls). Histologic evaluation of aortic and mitral valves was performed for 6 HERDA-affected and 3 control horses...
March 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28204708/modeling-the-interplay-between-psychological-processes-and-adverse-stressful-contexts-and-experiences-in-pathways-to-psychosis-an-experience-sampling-study
#7
Annelie Klippel, Inez Myin-Germeys, UnYoung Chavez-Baldini, Kristopher J Preacher, Matthew Kempton, Lucia Valmaggia, Maria Calem, Suzanne So, Stephanie Beards, Kathryn Hubbard, Charlotte Gayer-Anderson, Adanna Onyejiaka, Marieke Wichers, Philip McGuire, Robin Murray, Philippa Garety, Jim van Os, Til Wykes, Craig Morgan, Ulrich Reininghaus
No abstract text is available yet for this article.
March 1, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28202241/geochemical-and-mineralogical-characterization-of-sulfur-and-iron-in-coal-waste-rock-elk-valley-british-columbia-canada
#8
Joseph Essilfie-Dughan, M Jim Hendry, James J Dynes, Yongfeng Hu, Ashis Biswas, S Lee Barbour, S Day
Exposure of coal waste rock to atmospheric oxygen can result in the oxidation of sulfide minerals and the release of sulfate (SO4(2-)) and associated trace elements (e.g., Se, As, Cd, and Zn) to groundwaters and surface waters. Similarly, reduced iron minerals such as siderite, ankerite, and the sulfide, pyrite, present in the waste rock can also undergo oxidation, resulting in the formation of iron oxyhydroxides that can adsorb trace elements released from the oxidation of the sulfide minerals. Characterization and quantification of the distribution of sulfide and iron minerals, their oxidation products, as well as leaching rates are critical to assessing present-day and future impacts of SO4(2-) and associated trace elements on receiving waters...
February 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28199719/evidence-that-the-urban-environment-moderates-the-level-of-familial-clustering-of-positive-psychotic-symptoms
#9
Anton Grech, Jim van Os
No abstract text is available yet for this article.
March 1, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28199495/risk-factors-for-hepatitis-c-virus-reinfection-after-sustained-virologic-response-in-patients-co-infected-with-hiv
#10
Jim Young, Carmine Rossi, John Gill, Sharon Walmsley, Curtis Cooper, Joseph Cox, Valerie Martel-Laferriere, Brian Conway, Neora Pick, Marie-Louise Vachon, Marina B Klein
No abstract text is available yet for this article.
February 12, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28199071/effect-of-antipsychotic-type-and-dose-changes-on-tardive-dyskinesia-and-parkinsonism-severity-in-patients-with-a-serious-mental-illness-the-cura%C3%A3-ao-extrapyramidal-syndromes-study-xii
#11
Charlotte L Mentzel, P Roberto Bakker, Jim van Os, Marjan Drukker, Glenn E Matroos, Hans W Hoek, Marina A J Tijssen, Peter N van Harten
OBJECTIVE: To test the efficacy of current treatment recommendations for parkinsonism and tardive dyskinesia (TD) severity in patients with severe mental illness (SMI). METHODS: We present an 18-year prospective study including all 223 patients with SMI (as defined by the 1987 US National Institute of Mental Health, which were based on DSM-III-R diagnostic criteria) receiving care from the only psychiatric hospital of the former Netherlands Antilles. Eight clinical assessments (1992-2009) focused on movement disorders and medication use...
February 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28198568/compressed-sensing-mri-reconstruction-from-3d-multichannel-data-using-gpus
#12
Ching-Hua Chang, Xiangdong Yu, Jim X Ji
PURPOSE: To accelerate iterative reconstructions of compressed sensing (CS) MRI from 3D multichannel data using graphics processing units (GPUs). METHODS: The sparsity of MRI signals and parallel array receivers can reduce the data acquisition requirements. However, iterative CS reconstructions from data acquired using an array system may take a significantly long time, especially for a large number of parallel channels. This paper presents an efficient method for CS-MRI reconstruction from 3D multichannel data using GPUs...
February 15, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28198360/secreted-clic3-drives-cancer-progression-through-its-glutathione-dependent-oxidoreductase-activity
#13
Juan R Hernandez-Fernaud, Elena Ruengeler, Andrea Casazza, Lisa J Neilson, Ellie Pulleine, Alice Santi, Shehab Ismail, Sergio Lilla, Sandeep Dhayade, Iain R MacPherson, Iain McNeish, Darren Ennis, Hala Ali, Fernanda G Kugeratski, Heba Al Khamici, Maartje van den Biggelaar, Peter V E van den Berghe, Catherine Cloix, Laura McDonald, David Millan, Aoisha Hoyle, Anna Kuchnio, Peter Carmeliet, Stella M Valenzuela, Karen Blyth, Huabing Yin, Massimiliano Mazzone, Jim C Norman, Sara Zanivan
The secretome of cancer and stromal cells generates a microenvironment that contributes to tumour cell invasion and angiogenesis. Here we compare the secretome of human mammary normal and cancer-associated fibroblasts (CAFs). We discover that the chloride intracellular channel protein 3 (CLIC3) is an abundant component of the CAF secretome. Secreted CLIC3 promotes invasive behaviour of endothelial cells to drive angiogenesis and increases invasiveness of cancer cells both in vivo and in 3D cell culture models, and this requires active transglutaminase-2 (TGM2)...
February 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28196955/identification-of-human-junctional-adhesion-molecule-1-as-a-functional-receptor-for-the-hom-1-calicivirus-on-human-cells
#14
Stanislav V Sosnovtsev, Carlos Sandoval-Jaime, Gabriel I Parra, Christine M Tin, Ronald W Jones, Jo Soden, Donna Barnes, Jim Freeth, Alvin W Smith, Kim Y Green
The Hom-1 vesivirus was reported in 1998 following the inadvertent transmission of the animal calicivirus San Miguel sea lion virus to a human host in a laboratory. We characterized the Hom-1 strain and investigated the mechanism by which human cells could be infected. An expression library of 3,559 human plasma membrane proteins was screened for reactivity with Hom-1 virus-like particles, and a single interacting protein, human junctional adhesion molecule 1 (hJAM1), was identified. Transient expression of hJAM1 conferred susceptibility to Hom-1 infection on nonpermissive Chinese hamster ovary (CHO) cells...
February 14, 2017: MBio
https://www.readbyqxmd.com/read/28196195/association-of-otolaryngology-resident-duty-hour-restrictions-with-procedure-specific-outcomes-in-head-and-neck-endocrine-surgery
#15
Aaron Smith, Lauren Braden, Jim Wan, Merry Sebelik
Importance: Graduate medical education has undergone a transformation from traditional long work hours to a restricted plan to allow adequate rest for residents. The initial goal of this restriction is to improve patient outcomes. Objective: To determine whether duty hour restrictions had any impact on surgery-specific outcomes by analyzing complications following thyroid and parathyroid procedures performed before and after duty hour reform. Design, Setting, and Participants: Retrospective cross-sectional analysis of the National Inpatient Sample (NIS)...
February 9, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28196011/determining-the-benefits-of-transcranial-direct-current-stimulation-on-functional-upper-limb-movement-in-chronic-stroke
#16
Jodie L Marquez, Alexander C Conley, Frini Karayanidis, James Miller, Jim Lagopoulos, Mark W Parsons
Transcranial direct current stimulation (tDCS) has been proposed as a tool to enhance stroke rehabilitation; however, evidence to support its use is lacking. The aim of this study was to investigate the effects of anodal and cathodal tDCS on upper limb function in chronic stroke patients. Twenty five participants were allocated to receive 20 min of 1 mA of anodal, cathodal or sham cortical stimulation in a random, counterbalanced order. Patients and assessors were blinded to the intervention at each time point...
February 13, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28195349/risk-of-end-stage-liver-disease-hepatocellular-carcinoma-and-liver-related-death-by-fibrosis-stage-in-the-hepatitis-c-alaska-cohort
#17
Dana Jt Bruden, Brian J McMahon, Lisa Townshend-Bulson, Prabhu Gounder, Jim Gove, Julia Plotnik, Chriss Homan, Annette Hewitt, Youssef Barbour, Philip R Spradling, Brenna C Simons, Susan McArdle, Michael Bruce
Long-term prospective studies of the outcomes associated with HCV infection are rare and critical for assessing the potential impact of HCV treatment. Using liver biopsy as a start point, we looked at development of end stage liver disease (ESLD), hepatocellular carcinoma (HCC) and liver-related death (LRD) according to fibrosis stage, among a cohort of American Indian/Alaska Native persons in Alaska. Persons were classified as having no/mild (Ishak=0,1), moderate (Ishak=2), or severe (Ishak=3,4) fibrosis or cirrhosis (Ishak=5,6)...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28194623/comparison-of-non-compartmental-and-mixed-effect-modelling-methods-for-establishing-bioequivalence-for-the-case-of-two-compartment-kinetics-and-censored-concentrations
#18
Jim H Hughes, Richard N Upton, David J R Foster
Non-compartmental analysis (NCA) is regarded as the standard for establishing bioequivalence, despite its limitations and the existence of alternative methods such as non-linear mixed effects modelling (NLMEM). Comparisons of NCA and NLMEM in bioequivalence testing have been limited to drugs with one-compartment kinetics and have included a large number of different approaches. A simulation tool was developed with the ability to rapidly compare NCA and NLMEM methods in determining bioequivalence using both R and NONMEM and applied to a drug with two-compartment pharmacokinetics...
February 13, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28193036/international-comparison-of-enumeration-based-quantification-of-dna-copy-concentration-using-flow-cytometric-counting-and-digital-polymerase-chain-reaction
#19
Hee-Bong Yoo, Sang-Ryoul Park, Lianhua Dong, Jing Wang, Zhiwei Sui, Jernej Pavšič, Mojca Milavec, Muslum Akgoz, Erkan Mozioğlu, Philippe Corbisier, Mátrai Janka, Bruno Cosme, Janaina J de V Cavalcante, Roberto Becht Flatshart, Daniel Burke, Michael Forbes-Smith, Jacob McLaughlin, Kerry Emslie, Alexandra S Whale, Jim F Huggett, Helen Parkes, Margaret C Kline, Jo Lynne Harenza, Peter M Vallone
Enumeration-based determination of DNA copy-concentration was assessed through an international comparison among national metrology institutes (NMIs) and designated institutes (DIs). Enumeration-based quantification does not require a calibration standard thereby providing a route to "absolute quantification", which offers the potential for reliable value assignments of DNA reference materials, and International System of Units (SI) traceability to copy number 1 through accurate counting. In this study, 2 enumeration-based methods, flow cytometric (FCM) counting and the digital polymerase chain reaction (dPCR), were compared to quantify a solution of the pBR322 plasmid at a concentration of several thousand copies per microliter...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28193001/coalescence-sampling-and-analysis-of-aerosols-using-aerosol-optical-tweezers
#20
Allen E Haddrell, Rachael E H Miles, Bryan R Bzdek, Jonathan P Reid, Rebecca J Hopkins, Jim S Walker
We present a first exploratory study to assess the use of aerosol optical tweezers as an instrument for sampling and detecting accumulation- and coarse-mode aerosol. A subpicoliter aqueous aerosol droplet is captured in the optical trap and used as a sampling volume, accreting mass from a free-flowing aerosol generated by a medical nebulizer or atomizer. Real-time measurements of the initial stability in size, refractive index, and composition of the sampling droplet inferred from Raman spectroscopy confirm that these quantities can be measured with high accuracy and low noise...
February 9, 2017: Analytical Chemistry
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