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https://www.readbyqxmd.com/read/28421340/is-tumor-cellularity-in-primary-invasive-breast-carcinoma-of-prognostic-significance
#1
Emily S Reisenbichler, William Dupont, W Dale Plummer, Omar Hameed
Many methods of analysis to predict survival of invasive mammary carcinoma in the post-neoadjuvant setting utilize tumor cellularity alone or in combination with other tumor features. The goal of this study was to evaluate the prognostic value of tumor cellularity in primary non-treated carcinoma. We used 366 cases of invasive breast carcinoma to determine invasive tumor cellularity (%) by reviewing a representative excisional tumor section and correlated this with breast cancer recurrence (BCR) and overall mortality (OM)...
April 19, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28373351/key-role-of-capsular-polysaccharide-in-the-induction-of-systemic-infection-and-abortion-by-hypervirulent-campylobacter-jejuni
#2
Orhan Sahin, Samantha A Terhorst, Eric R Burrough, Zhangqi Shen, Zuowei Wu, Lei Dai, Yizhi Tang, Paul J Plummer, Ju Ji, Michael J Yaeger, Qijing Zhang
Campylobacter jejuni is a zoonotic pathogen, and a hypervirulent strain, named clone SA, has recently emerged as the predominant cause of ovine abortion in the United States. To induce abortion, orally ingested Campylobacter must translocate across the intestinal epithelium, spread systemically in the circulation, and reach the fetoplacental tissue. Bacterial factors involved in these steps are not well understood. C. jejuni is known to produce capsular polysaccharide (CPS), but the specific role CPS plays in systemic infection and particularly abortion in animals remains to be determined...
April 3, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28369882/worldwide-burden-of-cancer-attributable-to-hpv-by-site-country-and-hpv-type
#3
Catherine de Martel, Martyn Plummer, Jerome Vignat, Silvia Franceschi
HPV is the cause of almost all cervical cancer and is responsible for a substantial fraction of other anogenital cancer and oropharyngeal cancer. Understanding the HPV-attributable cancer burden can boost programs of HPV vaccination and HPV-based cervical screening. Attributable fractions (AF) and the relative contributions of different HPV types were derived from published studies reporting on the prevalence of transforming HPV infection in cancer tissue. Maps of age-standardized incidence rates of HPV-attributable cancers by country from GLOBOCAN 2012 data are shown separately for the cervix, other anogenital tract, and head and neck cancers...
April 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28369369/was-it-authentic-lyme-disease-or-some-other-disorder
#4
Charles S Pavia, Maria M Plummer
We compared the evidence presented recently that challenges the long-standing belief that, in 1922, two French physicians reported the first case of neurological Lyme disease with a further analysis of the original findings that were translated and re-published in 1993. Alternative possibilities are offered that could explain these discrepant interpretations on what was considered to be a landmark clinical case of historical significance.
April 1, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28357636/probable-catastrophic-antiphospholipid-syndrome-with-intracerebral-hemorrhage-secondary-to-epstein-barr-viral-infection
#5
Mark P Plummer, Adam M H Young, Ronan O'Leary, Maxwell S Damian, Andrea Lavinio
BACKGROUND: Catastrophic antiphospholipid syndrome (CAPS) is a rare, severe variant of antiphospholipid syndrome with a high mortality rate. We report a unique case of CAPS secondary to Epstein-Barr viral (EBV) infection complicated by pulmonary and intracerebral hemorrhage. A review of the CAPS literature relevant to intensive care practice is used to outline a rational approach to diagnosis and management. METHODS: All data are from a single patient admitted to the Neurosciences Critical Care Unit in Addenbrooke's Hospital, Cambridge, in March 2016...
March 29, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28357626/reasoning-strategies-with-rational-numbers-revealed-by-eye-tracking
#6
Patrick Plummer, Melissa DeWolf, Miriam Bassok, Peter C Gordon, Keith J Holyoak
Recent research has begun to investigate the impact of different formats for rational numbers on the processes by which people make relational judgments about quantitative relations. DeWolf, Bassok, and Holyoak (Journal of Experimental Psychology: General, 144(1), 127-150, 2015) found that accuracy on a relation identification task was highest when fractions were presented with countable sets, whereas accuracy was relatively low for all conditions where decimals were presented. However, it is unclear what processing strategies underlie these disparities in accuracy...
March 29, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28349934/atmospheric-impacts-of-the-strongest-known-solar-particle-storm-of-775-ad
#7
Timofei Sukhodolov, Ilya Usoskin, Eugene Rozanov, Eleanna Asvestari, William T Ball, Mark A J Curran, Hubertus Fischer, Gennady Kovaltsov, Fusa Miyake, Thomas Peter, Christopher Plummer, Werner Schmutz, Mirko Severi, Rita Traversi
Sporadic solar energetic particle (SEP) events affect the Earth's atmosphere and environment, in particular leading to depletion of the protective ozone layer in the Earth's atmosphere, and pose potential technological and even life hazards. The greatest SEP storm known for the last 11 millennia (the Holocene) occurred in 774-775 AD, serving as a likely worst-case scenario being 40-50 times stronger than any directly observed one. Here we present a systematic analysis of the impact such an extreme event can have on the Earth's atmosphere...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28340232/a-proposed-set-of-metrics-to-reduce-patient-safety-risk-from-within-the-anatomic-pathology-laboratory
#8
Peter Banks, Richard Brown, Alex Laslowski, Yvonne Daniels, Phil Branton, John Carpenter, Richard Zarbo, Ramses Forsyth, Yan-Hui Liu, Shane Kohl, Joachim Diebold, Shinobu Masuda, Tim Plummer, Eslie Dennis
Background: Anatomic pathology laboratory workflow consists of 3 major specimen handling processes. Among the workflow are preanalytic, analytic, and postanalytic phases that contain multistep subprocesses with great impact on patient care. A worldwide representation of experts came together to create a system of metrics, as a basis for laboratories worldwide, to help them evaluate and improve specimen handling to reduce patient safety risk. Method: Members of the Initiative for Anatomic Pathology Laboratory Patient Safety (IAPLPS) pooled their extensive expertise to generate a list of metrics highlighting processes with high and low risk for adverse patient outcomes...
March 18, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28328567/effects-of-a-simulated-game-on-upper-extremity-pitching-mechanics-and-muscle-activations-among-various-pitch-types-in-youth-baseball-pitchers
#9
Gretchen D Oliver, Hillary Plummer, Lisa Henning, Michael Saper, Gabrielle Glimer, Allison Brambeck, James R Andrews
BACKGROUND: Throwing requires proper stability and orientation of the pelvis and scapula for efficient energy transfer during pitching. Fatigue of the pelvis and scapular musculature throughout the course of a game can impair pitching performance, and place excessive demands on the throwing arm leading to injury. The purpose of this study was to examine differences in pelvis, torso, and upper extremity pitching mechanics and muscle activations between the fastball, change-up, and curveball pitches in youth baseball pitchers following a simulated game...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28325894/sumoylation-and-calcium-control-syntaxin-1a-and-secretagogin-sequestration-by-tomosyn-to-regulate-insulin-exocytosis-in-human-%C3%A3-cells
#10
Mourad Ferdaoussi, Jianyang Fu, Xiaoqing Dai, Jocelyn E Manning Fox, Kunimasa Suzuki, Nancy Smith, Gregory Plummer, Patrick E MacDonald
Insulin secretion from pancreatic ß cells is a multistep process that requires the coordination of exocytotic proteins that integrate diverse signals. These include signals derived from metabolic control of post-translational SUMOylation and depolarization-induced rises in intracellular Ca(2+). Here we show that tomosyn, which suppresses insulin exocytosis by binding syntaxin1A, does so in a manner which requires its SUMOylation. Glucose-dependent de-SUMOylation of tomosyn1 at K298 releases syntaxin1A and controls the amplification of exocytosis in concert with a recently-identified tomosyn1-interacting partner; the Ca(2+)-binding protein secretagogin, which dissociates from tomosyn1 in response to Ca(2+)-raising stimuli and is required for insulin granule trafficking and exocytosis downstream of Ca(2+) influx...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28314651/gait-and-balance-training-using-virtual-reality-is-more-effective-for-improving-gait-and-balance-ability-after-stroke-than-conventional-training-without-virtual-reality-synopsis
#11
https://www.readbyqxmd.com/read/28292762/gpr40-reduces-food-intake-and-body-weight-through-glp-1
#12
Judith N Gorski, Michele J Pachanski, Joel Mane, Christopher W Plummer, Sarah Souza, Brande S Thomas-Fowlkes, Aimie M Ogawa, Adam B Weinglass, Jerry Di Salvo, Boonlert Cheewatrakoolpong, Andrew D Howard, Steven L Colletti, Maria E Trujillo
GPR40 partial agonists lower glucose through the potentiation of glucose-stimulated insulin secretion, which is believed to provide significant glucose lowering without the weight gain or hypoglycemic risk associated with exogenous insulin or glucose independent insulin secretagogues. The class of small molecule GPR40 modulators, known as AgoPAMs (agonist also capable of acting as positive allosteric modulators), differentiate from partial agonists, binding to a distinct site and functioning as full agonists to stimulate the secretion of both insulin and GLP-1 (17)...
March 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28288122/genetically-encoded-biosensors-for-visualizing-live-cell-biochemical-activity-at-super-resolution
#13
Gary C H Mo, Brian Ross, Fabian Hertel, Premashis Manna, Xinxing Yang, Eric Greenwald, Chris Booth, Ashlee M Plummer, Brian Tenner, Zan Chen, Yuxiao Wang, Eileen J Kennedy, Philip A Cole, Karen G Fleming, Amy Palmer, Ralph Jimenez, Jie Xiao, Peter Dedecker, Jin Zhang
Compartmentalized biochemical activities are essential to all cellular processes, but there is no generalizable method to visualize dynamic protein activities in living cells at a resolution commensurate with cellular compartmentalization. Here, we introduce a new class of fluorescent biosensors that detect biochemical activities in living cells at a resolution up to threefold better than the diffraction limit. These 'FLINC' biosensors use binding-induced changes in protein fluorescence dynamics to translate kinase activities or protein-protein interactions into changes in fluorescence fluctuations, which are quantifiable through stochastic optical fluctuation imaging...
April 2017: Nature Methods
https://www.readbyqxmd.com/read/28282300/a-randomized-double-blind-comparison-of-tenofovir-alafenamide-taf-vs-tenofovir-disoproxil-fumarate-tdf-each-coformulated-with-elvitegravir-cobicistat-and-emtricitabine-e-c-f-for-initial-hiv-1-treatment-week-144-results
#14
José R Arribas, Melanie Thompson, Paul E Sax, Bernhard Haas, Cheryl McDonald, David A Wohl, Edwin DeJesus, Amanda E Clarke, Susan Guo, Hui Wang, Christian Callebaut, Andrew Plummer, Andrew Cheng, Moupali Das, Scott McCallister
In two double-blind Phase 3 trials, 1733 antiretroviral-naïve adults were randomized to tenofovir alafenamide (TAF) or tenofovir disoproxil fumarate (TDF), each coformulated with elvitegravir/cobicistat/emtricitabine (E/C/F). At 144 weeks, TAF was superior to TDF in virologic efficacy, with 84.2% vs. 80.0% having HIV-1 RNA <50 copies/mL (difference 4.2%; 95%CI 0.6% to 7.8%). TAF had less impact than TDF on bone mineral density and renal biomarkers. No participants on TAF had renal-related discontinuations vs 12 on TDF (P<0...
March 9, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28275850/analysis-of-swedish-forest-owners-information-and-knowledge-sharing-networks-for-decision-making-insights-for-climate-change-communication-and-adaptation
#15
Karin André, Julia Baird, Åsa Gerger Swartling, Gregor Vulturius, Ryan Plummer
To further the understanding of climate change adaptation processes, more attention needs to be paid to the various contextual factors that shape whether and how climate-related knowledge and information is received and acted upon by actors involved. This study sets out to examine the characteristics of forest owners' in Sweden, the information and knowledge-sharing networks they draw upon for decision-making, and their perceptions of climate risks, their forests' resilience, the need for adaptation, and perceived adaptive capacity...
March 8, 2017: Environmental Management
https://www.readbyqxmd.com/read/28274779/relationship-between-diurnal-patterns-in-rapid-response-call-activation-and-patient-outcome
#16
Joanne Molloy, Naomi Pratt, Ravindranath Tiruvoipati, Cameron Green, Virginia Plummer
BACKGROUND: The Rapid Response Call (RRC) is a system designed to escalate care to a specialised team in response to the detection of patient deterioration. To date, there have been few studies which have explored the relationship between time of day of RRC and patient outcome. OBJECTIVE: To examine the relationship between the time of RRC activations and patient outcome. METHOD: All adult inpatients with a RRC in non-critical care wards of a metropolitan Australian hospital in 2012 were retrospectively reviewed...
March 5, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28270164/tropomyosin-receptor-antagonism-in-cylindromatosis-trac-an-early-phase-trial-of-a-topical-tropomyosin-kinase-inhibitor-as-a-treatment-for-inherited-cyld-defective-skin-tumours-study-protocol-for-a-randomised-controlled-trial
#17
Amy Cranston, Deborah D Stocken, Elaine Stamp, David Roblin, Julia Hamlin, James Langtry, Ruth Plummer, Alan Ashworth, John Burn, Neil Rajan
BACKGROUND: Patients with germline mutations in a tumour suppressor gene called CYLD develop multiple, disfiguring, hair follicle tumours on the head and neck. The prognosis is poor, with up to one in four mutation carriers requiring complete surgical removal of the scalp. There are no effective medical alternatives to treat this condition. Whole genome molecular profiling experiments led to the discovery of an attractive molecular target in these skin tumour cells, named tropomyosin receptor kinase (TRK), upon which these cells demonstrate an oncogenic dependency in preclinical studies...
March 7, 2017: Trials
https://www.readbyqxmd.com/read/28244907/oral-and-intravenous-tranexamic-acid-are-equivalent-at-reducing-blood-loss-following-total-hip-arthroplasty-a-randomized-controlled-trial
#18
RANDOMIZED CONTROLLED TRIAL
Erdan Kayupov, Yale A Fillingham, Kamil Okroj, Darren R Plummer, Mario Moric, Tad L Gerlinger, Craig J Della Valle
BACKGROUND: Tranexamic acid is an antifibrinolytic that has been shown to reduce blood loss and the need for transfusions when administered intravenously in total hip arthroplasty. Oral formulations of the drug are available at a fraction of the cost of the intravenous preparation. The purpose of this randomized controlled trial was to determine if oral and intravenous formulations of tranexamic acid have equivalent blood-sparing properties. METHODS: In this double-blinded trial, 89 patients undergoing primary total hip arthroplasty were randomized to receive 1...
March 1, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28243780/the-influence-of-cognitive-load-on-metabolic-cost-of-transport-during-overground-walking-in-healthy-young-adults
#19
Lisa A Zukowski, Jasmine M Martin, Gabrielle Scronce, Michael D Lewek, Prudence Plummer
PURPOSE: Our aim was to examine whether cognitive processing during walking increases the metabolic cost of transport in healthy young adults. METHODS: Twenty healthy, young adults completed five conditions: (1) walking at a self-selected speed (spontaneous single-task), (2) seated resting (baseline), (3) performing cognitive task while seated (cognitive single-task), (4) walking while simultaneously performing the cognitive task (dual-task), and (5) single-task walking at a speed that matched the participant's dual-task gait speed (matched single-task)...
February 27, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28228943/a-case-series-of-cholecystectomy-in-jamaican-sickle-cell-disease-patients-the-need-for-a-new-strategy
#20
Pierre-Anthony Leake, Marvin Reid, Joseph Plummer
High morbidity rates related to cholecystectomy in sickle cell disease (SCD) patients have been previously reported in the region. This study serves to assess the current outcomes related to cholecystectomy in a Jamaican SCD population. METHODS: A retrospective chart review of SCD patients undergoing elective cholecystectomy at the University Hospital of the West Indies over a 6-year period was performed providing relevant information for analysis. Patients were grouped on an intention-to-treat basis into an open and laparoscopic group...
March 2017: Annals of Medicine and Surgery
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