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https://www.readbyqxmd.com/read/28922704/direct-acting-antivirals-for-chronic-hepatitis-c
#1
REVIEW
Janus C Jakobsen, Emil Eik Nielsen, Joshua Feinberg, Kiran Kumar Katakam, Kristina Fobian, Goran Hauser, Goran Poropat, Snezana Djurisic, Karl Heinz Weiss, Milica Bjelakovic, Goran Bjelakovic, Sarah Louise Klingenberg, Jian Ping Liu, Dimitrinka Nikolova, Ronald L Koretz, Christian Gluud
BACKGROUND: Millions of people worldwide suffer from hepatitis C, which can lead to severe liver disease, liver cancer, and death. Direct-acting antivirals (DAAs), e.g. sofosbuvir, are relatively new and expensive interventions for chronic hepatitis C, and preliminary results suggest that DAAs may eradicate hepatitis C virus (HCV) from the blood (sustained virological response). Sustained virological response (SVR) is used by investigators and regulatory agencies as a surrogate outcome for morbidity and mortality, based solely on observational evidence...
September 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28922338/does-the-%C3%AE-receptor-antagonist-esmolol-have-analgesic-effects-a-randomised-placebo-controlled-cross-over-study-on-healthy-volunteers-undergoing-the-cold-pressor-test
#2
Fredrik Ander, Anders Magnuson, Alex de Leon, Rebecca Ahlstrand
BACKGROUND: Esmolol may attenuate the sympathetic response to pain and reduce postoperative opioid consumption. It is not clear whether esmolol has an analgesic effect per se. OBJECTIVES: The aim of this study was to evaluate the analgesic effect of esmolol in the absence of anaesthetics and opioids. We tested the hypothesis that esmolol would reduce the maximum pain intensity perceived during the cold pressor test (CPT) by 2 points on a 0 to 10 numeric pain rating scale (NRS) compared to placebo...
September 15, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28872897/a-novel-strategy-to-seek-biosignatures-at-enceladus-and-europa
#3
Philip Judge
A laboratory experiment is suggested in which conditions similar to those in the plume ejecta from Enceladus and, perhaps, Europa are established. With the use of infrared spectroscopy and polarimetry, the experiment might identify possible biomarkers in differential measurements of water from the open ocean, hydrothermal vents, and abiotic water samples. Should the experiment succeed, large telescopes could be used to acquire sensitive infrared spectra of the plumes of Enceladus and Europa, as the satellites transit the bright planetary disks...
September 2017: Astrobiology
https://www.readbyqxmd.com/read/28856537/the-treatment-effect-of-an-ace-inhibitor-based-regimen-with-perindopril-in-relation-to-beta-blocker-use-in-29-463-patients-with-vascular-disease-a-combined-analysis-of-individual-data-of-advance-europa-and-progress-trials
#4
J J Brugts, M Bertrand, W Remme, R Ferrari, K Fox, S MacMahon, J Chalmers, M L Simoons, E Boersma
INTRODUCTION: In everyday practice, angiotensin converting enzyme inhibitors and beta-blockers are cornerstone treatments in patients with (cardio-)vascular disease. Clear data that evaluate the effects of the combination of these agents on morbidity and mortality are lacking. METHODS: In this retrospective pooled analysis of three large perindopril outcome trials (ADVANCE, EUROPA, PROGRESS), clinical outcomes were evaluated in 29,463 patients with vascular disease...
August 31, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28820643/a-prototype-ice-melting-probe-for-collecting-biological-samples-from-cryogenic-ice-at-low-pressure
#5
Ashley Davis
In the Solar System, the surface of an icy moon is composed of irregular ice formations at cryogenic temperatures (<200 K), with an oxidized surface layer and a tenuous atmosphere at very low pressure (<10(-6) atm). A lander mission, whose aim is to collect and analyze biological samples from the surface ice, must contain a device that collects samples without refreezing liquid and without sublimation of ice. In addition, if the samples are biological in nature, then precautions must be taken to ensure the samples do not overheat or mix with the oxidized layer...
August 2017: Astrobiology
https://www.readbyqxmd.com/read/28761750/european-medicines-agency-approval-summary-zaltrap-for-the-treatment-of-patients-with-oxaliplatin-resistant-metastatic-colorectal-cancer
#6
REVIEW
Stefan Cristian Stanel, Jan Sjöberg, Tomas Salmonson, Paolo Foggi, Mariapaola Caleno, Daniela Melchiorri, Iordanis Gravanis, Kyriaki Tzogani, Francesco Pignatti
On 1 February 2013, a marketing authorisation valid throughout the European Union was issued for aflibercept (Zaltrap) in combination with irinotecan/5-fluorouracil/folinic acid chemotherapy for the treatment of adults with metastatic colorectal cancer resistant to or progressive after an oxaliplatin-containing regimen. Aflibercept is a recombinant fusion protein which blocks the activation of vascular endothelial growth factor (VEGF) receptors and the proliferation of endothelial cells, acting as a soluble decoy receptor that binds to VEGF-A with higher affinity than its native receptors, as well as placental growth factor and VEGF-B...
2017: ESMO Open
https://www.readbyqxmd.com/read/28737879/-visceral-leishmaniasis-pediatric-case-report
#7
Andrés Gomila H, Carolina Vanzo, Analía Garnero, Luisina Peruzzo, Mónica Badalotti
La leishmaniasis es una enfermedad causada por parásitos obligados intracelulares pertenecientes al género Leishmania y que reconoce tres formas clínicas principales: cutánea, visceral y mucocutánea. Es una patología del grupo de las "enfermedades desatendidas". Es la única enfermedad tropical transmitida a través de vectores que se ha mantenido endémica por décadas en el sur de Europa. La leishmaniasis visceral representa la forma más grave. Se caracteriza por fiebre, pérdida de peso, anemia y hepatoesplenomegalia...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28733590/hypersaline-sapropels-act-as-hotspots-for-microbial-dark-matter
#8
Adrian-Ştefan Andrei, Andreea Baricz, Michael Scott Robeson, Manuela Raluca Păuşan, Tudor Tămaş, Cecilia Chiriac, Edina Szekeres, Lucian Barbu-Tudoran, Erika Andrea Levei, Cristian Coman, Mircea Podar, Horia Leonard Banciu
Present-day terrestrial analogue sites are crucial ground truth proxies for studying life in geochemical conditions close to those assumed to be present on early Earth or inferred to exist on other celestial bodies (e.g. Mars, Europa). Although hypersaline sapropels are border-of-life habitats with moderate occurrence, their microbiological and physicochemical characterization lags behind. Here, we study the diversity of life under low water activity by describing the prokaryotic communities from two disparate hypersaline sapropels (Transylvanian Basin, Romania) in relation to geochemical milieu and pore water chemistry, while inferring their role in carbon cycling by matching taxa to known taxon-specific biogeochemical functions...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28702715/-the-eu-portal-implementation-importance-and-features
#9
REVIEW
Harald von Aschen, Hartmut Krafft
The European Medicines Agency (EMA) is developing a web-based EU portal with a database "at Union level as a single entry point for the submission of data and information relating to clinical trials in accordance with" the new EU regulation No. 536/2014. The specifications are mostly published, but some documents are still missing. Because the project is integrated and has dependencies on other projects, this could result in other specification upgrades. The IT solution is under ongoing development until project completion in quarter III of 2019...
August 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28693439/combatting-pain-after-orthopedic-trauma-surgery-perioperative-oral-extended-release-tapentadol-vs-extended-release-oxycodone-naloxone
#10
Gertrud Haeseler, Dirk Schaefers, Natalie Prison, Jörg Ahrens, Xiaofei Liu, Annika Karch
BACKGROUND: High post-operative pain scores after "minor" orthopedic/trauma surgery are in part attributed to inadequate prescription of opioid analgesics. Novel concepts aiming to achieve sufficient analgesia while minimizing opioid-related side effects by avoiding fluctuating plasma levels are based on perioperative oral administration of extended-release opioids beginning with the first dose pre-operatively. This is the first study to evaluate analgesic efficacy and side effect rates of extended-release tapentadol compared to oxycodone/naloxone following orthopedic/trauma surgery...
July 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28682665/can-life-begin-on-enceladus-a-perspective-from-hydrothermal-chemistry
#11
David Deamer, Bruce Damer
Enceladus is a target of future missions designed to search for existing life or its precursors. Recent flybys of Enceladus by the Cassini probe have confirmed the existence of a long-lived global ocean laced with organic compounds and biologically available nitrogen. This immediately suggests the possibility that life could have begun and may still exist on Enceladus. Here we will compare the properties of two proposed sites for the origin of life on Earth-hydrothermal vents on the ocean floor and hydrothermal volcanic fields at the surface-and ask whether similar conditions could have fostered the origin of life on Enceladus...
September 2017: Astrobiology
https://www.readbyqxmd.com/read/28665680/detecting-darwinism-from-molecules-in-the-enceladus-plumes-jupiter-s-moons-and-other-planetary-water-lagoons
#12
Steven A Benner
To the astrobiologist, Enceladus offers easy access to a potential subsurface biosphere via the intermediacy of a plume of water emerging directly into space. A direct question follows: If we were to collect a sample of this plume, what in that sample, through its presence or its absence, would suggest the presence and/or absence of life in this exotic locale? This question is, of course, relevant for life detection in any aqueous lagoon that we might be able to sample. This manuscript reviews physical chemical constraints that must be met by a genetic polymer for it to support Darwinism, a process believed to be required for a chemical system to generate properties that we value in biology...
September 2017: Astrobiology
https://www.readbyqxmd.com/read/28586678/polar-oceans-in-a-changing-climate
#13
David K A Barnes, Geraint A Tarling
Most of Earth's surface is blue or white, but how much of each would depend on the time of observation. Our planet has been through phases of snowball (all frozen), greenhouse (all liquid seas) and icehouse (frozen and liquid). Even during current icehouse conditions, the extent of ice versus water has changed considerably between ice ages and interglacial periods. Water has been vital for life on Earth and has driven and been influenced by transitions between greenhouse and icehouse. However, neither the possession of water nor having liquid and frozen seas are unique to Earth (Figure 1)...
June 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28585310/direct-acting-antivirals-for-chronic-hepatitis-c
#14
REVIEW
Janus C Jakobsen, Emil Eik Nielsen, Joshua Feinberg, Kiran Kumar Katakam, Kristina Fobian, Goran Hauser, Goran Poropat, Snezana Djurisic, Karl Heinz Weiss, Milica Bjelakovic, Goran Bjelakovic, Sarah Louise Klingenberg, Jian Ping Liu, Dimitrinka Nikolova, Ronald L Koretz, Christian Gluud
BACKGROUND: Millions of people worldwide suffer from hepatitis C, which can lead to severe liver disease, liver cancer, and death. Direct-acting antivirals (DAAs) are relatively new and expensive interventions for chronic hepatitis C, and preliminary results suggest that DAAs may eradicate hepatitis C virus (HCV) from the blood (sustained virological response). However, it is still questionable if eradication of hepatitis C virus in the blood eliminates hepatitis C in the body, and improves survival and leads to fewer complications...
June 6, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28543691/emergent-macrophytes-modify-the-abundance-and-community-composition-of-ammonia-oxidizers-in-their-rhizosphere-sediments
#15
Dayong Zhao, Xiaowei He, Rui Huang, Wenming Yan, Zhongbo Yu
Ammonia oxidation is a crucial process in global nitrogen cycling, which is catalyzed by the ammonia oxidizers. Emergent plants play important roles in the freshwater ecosystem. Therefore, it is meaningful to investigate the effects of emergent macrophytes on the abundance and community composition of ammonia oxidizers. In the present study, two commonly found emergent macrophytes (Zizania caduciflora and Phragmitas communis) were obtained from freshwater lakes and the abundance and community composition of the ammonia-oxidizing prokaryotes in the rhizosphere sediments of these emergent macrophytes were investigated...
May 22, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28520473/a-new-method-and-mass-spectrometric-instrument-for-extraterrestrial-microbial-life-detection-using-the-elemental-composition-analyses-of-martian-regolith-and-permafrost-ice
#16
G G Managadze, A A Safronova, K A Luchnikov, E A Vorobyova, N S Duxbury, P Wurz, N G Managadze, A E Chumikov, R Kh Khamizov
We propose a new technique for the detection of microorganisms by elemental composition analyses of a sample extracted from regolith, permafrost, and ice of extraterrestrial bodies. We also describe the design of the ABIMAS instrument, which consists of the onboard time-of-flight laser mass-reflectron (TOF LMR) and the sample preparation unit (SPU) for biomass extraction. This instrument was initially approved to fly on board the ExoMars 2020 lander mission. The instrument can be used to analyze the elemental composition of possible extraterrestrial microbial communities and compare it to that of terrestrial microorganisms...
May 2017: Astrobiology
https://www.readbyqxmd.com/read/28492251/multi-phase-volcanic-resurfacing-at-loki-patera-on-io
#17
K de Kleer, M Skrutskie, J Leisenring, A G Davies, A Conrad, I de Pater, A Resnick, V Bailey, D Defrère, P Hinz, A Skemer, E Spalding, A Vaz, C Veillet, C E Woodward
The Jovian moon Io hosts the most powerful persistently active volcano in the Solar System, Loki Patera. The interior of this volcanic, caldera-like feature is composed of a warm, dark floor covering 21,500 square kilometres surrounding a much cooler central 'island'. The temperature gradient seen across areas of the patera indicates a systematic resurfacing process, which has been seen to occur typically every one to three years since the 1980s. Analysis of past data has indicated that the resurfacing progressed around the patera in an anti-clockwise direction at a rate of one to two kilometres per day, and that it is caused either by episodic eruptions that emplace voluminous lava flows or by a cyclically overturning lava lake contained within the patera...
May 10, 2017: Nature
https://www.readbyqxmd.com/read/28449891/the-european-medicines-agency-review-of-pitolisant-for-treatment-of-narcolepsy-summary-of-the-scientific-assessment-by-the-committee-for-medicinal-products-for-human-use
#18
Marta Kollb-Sielecka, Pierre Demolis, Joseph Emmerich, Greg Markey, Tomas Salmonson, Manuel Haas
On 31 March 2016, the European Commission issued a decision for a marketing authorisation valid throughout the European Union (EU) for pitolisant (Wakix) for the treatment of narcolepsy with or without cataplexy in adults. Pitolisant is an antagonist/inverse agonist of the human histamine H3 receptor. The dose should be selected using an up-titration scheme depending on individual patient response and tolerance and should not exceed 36 mg/day. The main evidence of efficacy of pitolisant was based on two Phase III clinical trials...
May 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28426013/fake-drug-crackdown-tackling-misconduct-and-europa-s-plumes
#19
(no author information available yet)
No abstract text is available yet for this article.
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28380051/first-hiv-prevalence-estimates-of-a-representative-sample-of-adult-sub-saharan-african-migrants-in-a-european-city-results-of-a-community-based-cross-sectional-study-in-antwerp-belgium
#20
Jasna Loos, Christiana Nöstlinger, Bea Vuylsteke, Jessika Deblonde, Morgan Ndungu, Ilse Kint, Lazare Manirankunda, Thijs Reyniers, Dorothy Adobea, Marie Laga, Robert Colebunders
INTRODUCTION: While sub-Saharan African migrants are the second largest group affected by HIV in Europe, sound HIV prevalence estimates based on representative samples of these heterogeneous communities are lacking. Such data are needed to inform prevention and public health policy. METHODS: This community-based, cross-sectional study combined oral fluid HIV testing with an electronic behavioral survey. Adopting a two-stage time location sampling HIV prevalence estimates for a representative sample of adult sub-Saharan African migrants in Antwerp, Belgium were obtained...
2017: PloS One
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