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https://www.readbyqxmd.com/read/28220241/-icd-in-elderly-patients
#1
Carsten W Israel
Treatment with an implantable cardioverter-defibrillator (ICD) represents a prognostic but not symptomatic therapy. It should therefore be restricted to patients where an improvement of prognosis is possible and reasonable. ICD implantation should only be performed in patients with a life expectancy of at least 1 year at reasonable quality of life. The decision in which patient improvement of prognosis is no longer a desirable target is problematic, both medically and ethically. It is not entirely clear in which elderly patient an ICD therapy can convey prognostic benefit despite comorbidity and competitive life-threatening diseases, as it is unclear how old age should be defined...
February 20, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28219889/rapid-and-rigorous-il-17a-production-by-a-distinct-subpopulation-of-effector-memory-t-lymphocytes-constitutes-a-novel-mechanism-of-toxic-shock-syndrome-immunopathology
#2
Peter A Szabo, Ankur Goswami, Delfina M Mazzuca, Kyoungok Kim, David B O'Gorman, David A Hess, Ian D Welch, Howard A Young, Bhagirath Singh, John K McCormick, S M Mansour Haeryfar
Toxic shock syndrome (TSS) is caused by staphylococcal and streptococcal superantigens (SAgs) that provoke a swift hyperinflammatory response typified by a cytokine storm. The precipitous decline in the host's clinical status and the lack of targeted therapies for TSS emphasize the need to identify key players of the storm's initial wave. Using a humanized mouse model of TSS and human cells, we herein demonstrate that SAgs elicit in vitro and in vivo IL-17A responses within hours. SAg-triggered human IL-17A production was characterized by remarkably high mRNA stability for this cytokine...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28217930/cytokine-storm-syndrome-looking-toward-the-precision-medicine-era
#3
REVIEW
Edward M Behrens, Gary A Koretzky
No abstract text is available yet for this article.
February 19, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28215078/contribution-of-leaf-litter-to-nutrient-export-during-winter-months-in-an-urban-residential-watershed
#4
Anika Rose Bratt, Jacques C Finlay, Sarah E Hobbie, Benjamin D Janke, Adam C Worm, Kathrine L Kemmitt
Identification of non-point sources of nitrogen (N) and phosphorus (P) in urban systems is imperative to improve water quality and better manage eutrophication. Winter contributions and sources of annual N and P loads from urban watersheds are poorly characterized in northern cities because monitoring is often limited to warm weather periods. To determine winter export of N and P, we monitored storm water outflow in a residential watershed in Saint Paul, Minnesota during 2012-2014. Our data demonstrate that winter melt events contribute a high percentage of annual N and P export (50%)...
February 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28214008/recovery-of-salt-marsh-vegetation-after-removal-of-storm-deposited-anthropogenic-debris-lessons-from-volunteer-clean-up-efforts-in-long-beach-ny
#5
Kaitlin M Ehl, Steve M Raciti, Jason D Williams
Recovery of vegetation on a Long Island, NY salt marsh was investigated after the removal of hurricane-deposited large wooden debris through managed clean-ups involving volunteers. Two years after the removal of the debris, vegetation cover and species composition were not significantly different from controls. There was no significant difference in vegetation recovery among fall and spring debris removal treatments. Initial vegetation cover of the experimental and control plots was 95.8% and 1.2%, respectively; after two growing seasons cover was 78...
February 14, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28213832/dynamic-fluorescence-microscopy-of-cellular-uptake-of-intercalating-model-drugs-by-ultrasound-activated-microbubbles
#6
B H A Lammertink, R Deckers, M Derieppe, I De Cock, I Lentacker, G Storm, C T W Moonen, C Bos
PURPOSE: The combination of ultrasound and microbubbles can facilitate cellular uptake of (model) drugs via transient permeabilization of the cell membrane. By using fluorescent molecules, this process can be studied conveniently with confocal fluorescence microscopy. This study aimed to investigate the relation between cellular uptake and fluorescence intensity increase of intercalating model drugs. PROCEDURES: SYTOX Green, an intercalating fluorescent dye that displays >500-fold fluorescence enhancement upon binding to nucleic acids, was used as a model drug for ultrasound-induced cellular uptake...
February 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28213115/cross-modal-representation-of-spoken-and-written-word-meaning-in-left-pars-triangularis
#7
Antonietta Gabriella Liuzzi, Rose Bruffaerts, Ronald Peeters, Katarzyna Adamczuk, Emmanuel Keuleers, Simon De Deyne, Gerrit Storms, Patrick Dupont, Rik Vandenberghe
The correspondence in meaning extracted from written versus spoken input remains to be fully understood neurobiologically. Here, in a total of 38 subjects, the functional anatomy of cross-modal semantic similarity for concrete words was determined based on a dual criterion: First, a voxelwise univariate analysis had to show significant activation during a semantic task (property verification) performed with written and spoken concrete words compared to the perceptually matched control condition. Second, in an independent dataset, in these clusters, the similarity in fMRI response pattern to two distinct entities, one presented as a written and the other as a spoken word, had to correlate with the similarity in meaning between these entities...
February 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28211906/dynamics-of-male-meiotic-recombination-frequency-during-plant-development-using-fluorescent-tagged-lines-in-arabidopsis-thaliana
#8
Fan Li, Nico De Storme, Danny Geelen
Meiotic homologous recombination plays a central role in creating genetic variability, making it an essential biological process relevant to evolution and crop breeding. In this study, we used pollen-specific fluorescent tagged lines (FTLs) to measure male meiotic recombination frequency during the development of Arabidopsis thaliana. Interestingly, a subset of pollen grains consistently shows loss of fluorescence expression in tested lines. Using nine independent FTL intervals, the spatio-temporal dynamics of male recombination frequency was assessed during plant development, considering both shoot type and plant age as independent parameters...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210918/nutcracker-syndrome-and-sickle-cell-trait-a-perfect-storm-for-hematuria
#9
Amier Ahmad, Samuel K McElwee, Ryan R Kraemer
We describe the case of a 27-year-old woman with a history of sickle cell trait (SCT) who presented with several months of hematuria and was found to have nutcracker syndrome (NCS). While SCT is a common cause of hematuria resulting from renal papillary necrosis, our patient had concomitant abdominal pain and anemia, prompting further evaluation and the subsequent diagnosis of NCS. Interestingly, the anoxia in the left renal vein from NCS predisposes patients with SCT to sickling. Our case highlights key clinical features of both NCS and SCT and the relationship between the two disease processes...
February 16, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28209433/surface-runoff-and-subsurface-tile-drain-losses-of-neonicotinoids-and-companion-herbicides-at-edge-of-field
#10
François Chrétien, Isabelle Giroux, Georges Thériault, Patrick Gagnon, Julie Corriveau
With their application as seed coatings, the use of neonicotinoid insecticides increased dramatically during the last decade. They are now frequently detected in aquatic ecosystems at concentrations susceptible to harm aquatic invertebrates at individual and population levels. This study intent was to document surface runoff and subsurface tile drain losses of two common neonicotinoids (thiamethoxam and clothianidin) compared to those of companion herbicides (atrazine, glyphosate, S-metolachlor and mesotrione) at the edge of a 22...
February 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28208670/eutrophication-and-warming-boost-cyanobacterial-biomass-and-microcystins
#11
Miquel Lürling, Frank van Oosterhout, Elisabeth Faassen
Eutrophication and warming are key drivers of cyanobacterial blooms, but their combined effects on microcystin (MC) concentrations are less studied. We tested the hypothesis that warming promotes cyanobacterial abundance in a natural plankton community and that eutrophication enhances cyanobacterial biomass and MC concentrations. We incubated natural seston from a eutrophic pond under normal, high, and extreme temperatures (i.e., 20, 25, and 30 °C) with and without additional nutrients added (eutrophication) mimicking a pulse as could be expected from projected summer storms under climate change...
February 11, 2017: Toxins
https://www.readbyqxmd.com/read/28208496/extension-of-discrete-tribocharging-models-to-continuous-size-distributions
#12
Dylan Carter, Christine Hartzell
Triboelectric charging, the phenomenon by which electrical charge is exchanged during contact between two surfaces, has been known to cause significant charge separation in granular mixtures, even between chemically identical grains. This charging is a stochastic size-dependent process resulting from random collisions between grains. The prevailing models and experimental results suggest that, in most cases, larger grains in a mixture of dielectric grains acquire a positive charge, while smaller grains charge negatively...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28207186/skin-conductance-as-a-pain-assessment-tool-during-chest-tube-removal-an-observational-study
#13
J O Hansen, H Storm, A Boglino-Hörlin, M Le Guen, E Gayat, M Fischler
BACKGROUND: Skin conductance variability to assess pain has shown varying results. Skin conductance responses per second (SCR) during a standardized painful stimulus in awake adults may give further understanding of the method's validity. The purpose of this study was to validate the SCR with the visual analogue scale (VAS) for pain (P-VAS) and anxiety (A-VAS) during chest tube removal (CTR). METHODS: Ninety-five patients receiving epidural or non-epidural treatment, scheduled for CTR, were studied...
February 16, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28206702/statistical-issues-in-first-in-human-studies-on-bia-10-2474-neglected-comparison-of-protocol-against-practice
#14
Sheila M Bird, Rosemary A Bailey, Andrew P Grieve, Stephen Senn
By setting the regulatory-approved protocol for a suite of first-in-human studies on BIA 10-2474 against the subsequent French investigations, we highlight 6 key design and statistical issues, which reinforce recommendations by a Royal Statistical Society Working Party, which were made in the aftermath of cytokine release storm in 6 healthy volunteers in the United Kingdom in 2006. The 6 issues are dose determination, availability of pharmacokinetic results, dosing interval, stopping rules, appraisal by safety committee, and clear algorithm required if combining approvals for single and multiple ascending dose studies...
February 16, 2017: Pharmaceutical Statistics
https://www.readbyqxmd.com/read/28204270/short-term-hard-and-soft-tissue-changes-after-mandibular-advancement-surgery-in-class-ii-patients-a-retrospective-cephalometric-study
#15
A S Storms, A Miclotte, L Grosjean, M Cadenas de Llano-Pérula, A Alqerban, S Fieuws, Y Sun, C Politis, A Verdonck, G Willems
No abstract text is available yet for this article.
February 14, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28202911/what-rheumatologists-need-to-know-about-crispr-cas9
#16
REVIEW
Gary J Gibson, Maozhou Yang
CRISPR/Cas9 genome editing technology has taken the research world by storm since its use in eukaryotes was first proposed in 2012. Publications describing advances in technology and new applications have continued at an unrelenting pace since that time. In this Review, we discuss the application of CRISPR/Cas9 for creating gene mutations - the application that initiated the current avalanche of interest - and new developments that have largely answered initial concerns about its specificity and ability to introduce new gene sequences...
February 9, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28202556/the-eco-biological-behavioural-perfect-storm-that-follows-heavy-snowfall
#17
David A Alter
No abstract text is available yet for this article.
February 13, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28198028/proinflammatory-chemokines-are-major-mediators-of-exuberant-immune-response-associated-with-influenza-a-h1n1-pdm09-virus-infection
#18
Maria Thomas, Reeta Subramaniam Mani, Mariamma Philip, Ranjeeta Adhikary, Sangeeta Joshi, Srigiri S Revadi, Shashidhar Buggi, Anita Desai, Ravi Vasanthapuram
In India, the case fatality ratio of the pandemic A (H1N1) pdm09 influenza was relatively higher when compared to seasonal influenza A infection. Hypercytokinemia or "cytokine storm" has been previously implicated in the pathogenesis of other influenza viruses. The present study was undertaken to compare the cytokine profiles of A (H1N1) pdm09 influenza and seasonal H3 infection in Indian population and to correlate the findings with disease severity. Plasma levels of 18 cytokines/chemokines were measured by flow-cytometry using a bead based assay in patients infected with A (H1N1) pdm09 virus (n = 96) and Influenza A seasonal H3 virus (n = 30) categorised into mild, moderate and severe groups along with healthy controls (n = 36)...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28197626/kdm6a-and-kdm6b-altered-expression-in-malignant-pleural-mesothelioma
#19
Sian Cregan, Maeve Breslin, Gerard Roche, Sigrid Wennstedt, Lauren MacDonagh, Cinaria Albadri, Yun Gao, Kenneth J O'Byrne, Sinead Cuffe, Stephen P Finn, Steven G Gray
Malignant pleural mesothelioma (MPM) is a rare aggressive cancer of the pleura primarily associated with prior exposure to asbestos. The current standard of care for patients suffering from MPM is a combination of cisplatin and pemetrexed (or alternatively cisplatin and raltitrexed). Most patients, however, die within 24 months of diagnosis. New therapies are therefore urgently required for this disease. Inflammation is thought to be a key element in the pathogenesis of MPM, and recently Kdm6 family members (Kdm6a and Kdm6b) have been identified as playing important roles in inflammatory processes...
March 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28192742/breast-cancer-detection-using-single-reading-of-breast-tomosynthesis-3d-mammography-compared-to-double-reading-of-2d-mammography-evidence-from-a-population-based-trial
#20
Nehmat Houssami, Daniela Bernardi, Marco Pellegrini, Marvi Valentini, Carmine Fantò, Livio Ostillio, Paolina Tuttobene, Andrea Luparia, Petra Macaskill
BACKGROUND: Most population breast cancer (BC) screening programs use double-reading of 2D-mammography. We recently reported the screening with tomosynthesis or standard mammography-2 (STORM-2) trial, showing that double-read tomosynthesis (pseudo-3D-mammography) detected more BC than double-read 2D-mammography. In this study, we compare screen-detection measures for single-reading of 3D-mammography with those for double-reading of 2D-mammography, to inform screening practice. METHODS: This is a secondary analysis based on STORM-2 which prospectively compared 3D-mammography and 2D-mammography in sequential screen-readings...
February 10, 2017: Cancer Epidemiology
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