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https://www.readbyqxmd.com/read/28539007/videolaryngoscopy-versus-direct-laryngoscopy-for-tracheal-intubation-in-children-excluding-neonates
#1
REVIEW
Ibtihal S Abdelgadir, Robert S Phillips, Davinder Singh, Michael P Moncreiff, Joanne L Lumsden
BACKGROUND: Direct laryngoscopy is the method currently used for tracheal intubation in children. It occasionally offers unexpectedly poor laryngeal views. Indirect laryngoscopy involves visualizing the vocal cords by means other than obtaining a direct sight, with the potential to improve outcomes. We reviewed the current available literature and performed a meta-analysis to compare direct versus indirect laryngoscopy, or videolaryngoscopy, with regards to efficacy and adverse effects...
May 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28538992/intercepting-a-moving-target-on-line-or-model-based-control
#2
Huaiyong Zhao, William H Warren
When walking to intercept a moving target, people take an interception path that appears to anticipate the target's trajectory. According to the constant bearing strategy, the observer holds the bearing direction of the target constant based on current visual information, consistent with on-line control. Alternatively, the interception path might be based on an internal model of the target's motion, known as model-based control. To investigate these two accounts, participants walked to intercept a moving target in a virtual environment...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28538990/measuring-nonlinear-signal-combination-using-eeg
#3
Darren G M Cunningham, Daniel H Baker, Jonathan W Peirce
Relatively little is known about the processes, both linear and nonlinear, by which signals are combined beyond V1. By presenting two stimulus components simultaneously, flickering at different temporal frequencies (frequency tagging) while measuring steady-state visual evoked potentials, we can assess responses to the individual components, including direct measurements of suppression on each other, and various nonlinear responses to their combination found at intermodulation frequencies. The result is a rather rich dataset of frequencies at which responses can be found...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28538690/dysregulation-of-mirna-expression-in-cancer-associated-fibroblasts-cafs-and-its-consequences-on-the-tumor-microenvironment
#4
REVIEW
Maren Schoepp, Anda Jana Ströse, Jörg Haier
The tumor microenvironment, including cancer-associated fibroblasts (CAF), has developed as an important target for understanding tumor progression, clinical prognosis and treatment responses of cancer. Cancer cells appear to transform normal fibroblasts (NF) into CAFs involving direct cell-cell communication and epigenetic regulations. This review summarizes the current understanding on miR involvement in cancer cell-tumor environment/stroma communication, transformation of NFs into CAFs, their involved targets and signaling pathways in these interactions; and clinical relevance of CAF-related miR expression profiles...
May 24, 2017: Cancers
https://www.readbyqxmd.com/read/28538679/a-simple-drain-current-model-for-mos-transistors-with-the-lorentz-force-effect
#5
Hwang-Cherng Chow, Prasenjit Chatterjee, Wu-Shiung Feng
A novel concept of drain current modelling in rectangular normal MOS transistors with the Lorentz force has been proposed for the first time. The single-drain MOS transistor is qualified as a magnetic sensor. To create the Lorentz force, a DC loop current is applied through an on-chip metal loop around the device, and the relation between the applied loop current and the created magnetic field is assumed to be linear in nature. The drain current of the MOS transistor is reduced with the applied Lorentz force from both directions...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538469/an-assessment-of-the-clinical-acceptability-of-direct-acoustic-cochlear-implantation-for-adults-with-advanced-otosclerosis-in-the-united-kingdom
#6
Pádraig Thomas Kitterick, Guna Reddy-Kolanu, David Baguley, Jeremey Lavy, Peter Monksfield, Rupan Banga, Jaydip Ray, Ad Snik, Gerard M O'Donoghue
HYPOTHESIS: Assess the clinical acceptability of direct acoustic cochlear implantation for patients with advanced otosclerosis and the support for conducting a controlled trial of its effectiveness in the United Kingdom. BACKGROUND: Emerging evidence supports the efficacy of direct acoustic cochlear implantation in patients with advanced otosclerosis whose needs cannot be managed using the combination of stapes surgery and hearing aids. A controlled trial would provide evidence for its effectiveness and cost-effectiveness to healthcare commissioners...
May 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28538203/uhplc-ms-ms-method-with-sample-dilution-to-test-therapeutic-adherence-through-quantification-of-ten-antihypertensive-drugs-in-urine-samples
#7
Amedeo De Nicolò, Valeria Avataneo, Franco Rabbia, Mauro Sciandra, Francesco Tosello, Jessica Cusato, Elisa Perlo, Paolo Mulatero, Franco Veglio, Giovanni Di Perri, Antonio D'Avolio
Nowadays, hypertension represents an important health problem, particularly in developed countries. In some cases the standard therapeutic approaches are not able to reestablish the normal blood pressure values: this condition is called "resistant hypertension". However, a fraction of cases of resistant hypertension are actually due to poor adherence to the prescribed therapy. Therapeutic Drug Monitoring could represent a direct and useful tool to correctly identify non-compliant patients. Nevertheless, high throughput methods for the simultaneous monitoring of a wide panel of drugs in the same analysis are lacking and, furthermore, there is not a generally acknowledged "standard" matrix for this test (plasma or urine)...
May 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28538140/comparison-of-policies-for-recognising-and-responding-to-clinical-deterioration-across-five-victorian-health-services
#8
Julie Considine, Anastasia F Hutchison, Helen Rawson, Alison M Hutchinson, Tracey Bucknall, Trisha Dunning, Mari Botti, Maxine M Duke, Maryann Street
Objectives The aim of the present study was to describe and compare organisational guidance documents related to recognising and responding to clinical deterioration across five health services in Victoria, Australia.Methods Guidance documents were obtained from five health services, comprising 13 acute care hospitals, eight subacute care hospitals and approximately 5500 beds. Analysis was guided by a specific policy analysis framework and a priori themes.Results In all, 22 guidance documents and five graphic observation and response charts were reviewed...
May 25, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28537815/anticancer-treatments-and-female-fertility-clinical-concerns-and-role-of-oncologists-in-oncofertility-practice
#9
Mahmoud Salama, Teresa K Woodruff
Anticancer treatments such as aggressive chemotherapy and radiotherapy have deleterious gonadotoxic side effects and are considered the most common causes of pathological and iatrogenic fertility loss in women. Areas Covered: In order to preserve fertility of young women and girls with cancer, several established, experimental, and debatable options can be offered in the emerging field of oncofertility. This article reviews the effects of anticancer treatments on female fertility and discusses the current challenges and future directions of fertility preservation options that can be offered to the female patients with cancer...
May 24, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28537814/a-human-oriented-framework-for-developing-assistive-service-robots
#10
Conor McGinn, Michael F Cullinan, Mark Culleton, Kevin Kelly
PURPOSE: Multipurpose robots that can perform a range of useful tasks have the potential to increase the quality of life for many people living with disabilities. Owing to factors such as high system complexity, as-yet unresolved research questions and current technology limitations, there is a need for effective strategies to coordinate the development process. METHOD: Integrating established methodologies based on human-centred design and universal design, a framework was formulated to coordinate the robot design process over successive iterations of prototype development...
May 24, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28535490/moderate-ocean-warming-mitigates-but-more-extreme-warming-exacerbates-the-impacts-of-zinc-from-engineered-nanoparticles-on%C3%A2-a%C3%A2-marine-larva
#11
Benjamin Mos, Katrina L Kaposi, Andrew L Rose, Brendan Kelaher, Symon A Dworjanyn
There is growing concern about the combined effects of multiple human-induced stressors on biodiversity. In particular, there are substantial knowledge gaps about the combined effects of existing stressors (e.g. pollution) and predicted environmental stress from climate change (e.g. ocean warming). We investigated the impacts of ocean warming and engineered nanoparticles (nano-zinc oxide, nZnO) on larvae of a cosmopolitan tropical sea urchin, Tripneustes gratilla. Larval T. gratilla were exposed to all combinations of three temperatures, 25, 27 and 29 °C (current SST and near-future predicted warming of +2 and + 4 °C) and six concentrations of nZnO (0, 0...
May 20, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28535429/high-speed-video-analysis-of-forward-and-backward-spattered-blood-droplets
#12
P M Comiskey, A L Yarin, D Attinger
High-speed videos of blood spatter due to a gunshot taken by the Ames Laboratory Midwest Forensics Resource Center (MFRC) [1] are analyzed. The videos used in this analysis were focused on a variety of targets hit by a bullet which caused either forward, backward, or both types of blood spatter. The analysis process utilized particle image velocimetry (PIV) and particle analysis software to measure drop velocities as well as the distributions of the number of droplets and their respective side view area. The results of this analysis revealed that the maximal velocity in the forward spatter can be about 47±5m/s and for the backward spatter - about 24±8m/s...
May 1, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28535354/high-capacity-and-ultrafast-na-ion-storage-of-self-supported-3d-porous-antimony-persulfide-graphene-foam-architecture
#13
Yanying Lu, Ning Zhang, Shuang Jiang, Yudong Zhang, Meng Zhou, Zhanliang Tao, Lynden A Archer, Jun Chen
The key challenge for high performance sodium-ion batteries is the exploitation of appropriate electrode materials with long cycling stability and high rate capability. Here, we report Sb2S5 nanoparticles (~ 5 nm) uniformly encapsulated in three-dimensional (3D) porous graphene foam, which were fabricated by a facile hydrothermal co-assembly strategy, as a high-performance anode material for sodium-ion batteries. The as-prepared composite can be directly used as electrodes without adding binder or current collector, exhibiting outstanding electrochemical performance with high reversible capacity (845 mAh g-1 at 0...
May 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28535298/ledipasvir-sofosbuvir-plus-ribavirin-in-treatment-naive-patients-with-hepatitis-c-virus-genotype-3-infection-an-open-label-study
#14
Jordan J Feld, Alnoor Ramji, Stephen D Shafran, Bernard Willems, Paul Marotta, Emmanuelle Huchet, Marie-Louise Vachon, Evguenia S Svarovskaia, K C Huang, Robert H Hyland, Chohee Yun, Benedetta Massetto, Diana M Brainard, John G McHutchison, Edward Tam, Robert Bailey, Curtis Cooper, Eric M Yoshida, Susan Greenbloom, Magdy Elkhashab, Sergio Borgia, Mark G Swain
Background.: Patients chronically infected with genotype 3 hepatitis C virus (HCV) have faster disease progression and are less responsive to current direct-acting antiviral regimens than patients infected with other genotypes. We conducted an open-label trial to evaluate the safety, tolerability, and efficacy of ledipasvir and sofosbuvir plus ribavirin in patients with genotype 3 HCV infection. Methods.: We enrolled treatment-naive patients with and without compensated cirrhosis at 15 sites in Canada...
May 23, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28534966/microrna-92a-promotes-epithelial-mesenchymal-transition-through-activation-of-pten-pi3k-akt-signaling-pathway-in-non-small-cell-lung-cancer-metastasis
#15
Chaojing Lu, Zhengxiang Shan, Jiang Hong, Lixin Yang
MicroRNAs (miRNAs) have important roles in various cancers, including non-small cell lung cancer (NSCLC). Although several miRNAs have reported to be involved in the development of NSCLC, understanding the regulatory roles of other miRNAs in NSCLC is essential. Therefore, the aim of the current study was to explore the roles and mechanisms of screened miRNAs in NSCLC. First, the differentially expressed miRNAs that were screened based on GSE29248 microarray data retrieved from Gene Expression Omnibus (GEO)...
May 16, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534950/microrna%C3%A2-296-targets-akt2-in-pancreatic-cancer-and-functions-as-a-potential-tumor-suppressor
#16
Hailing Li, Jilin Li, Baolin Shi, Feng Chen
Although microRNA-296 (miR-296) has been studied in various types of human cancer, its expression, biological role and mechanism of action in pancreatic cancer remains to be elucidated. The aim of the current study was to investigate the expression level, possible roles and underlying molecular mechanisms of miR‑296 in pancreatic cancer. The present study revealed that miR‑296 is significantly downregulated in tissue from patients with pancreatic cancer and in human pancreatic carcinoma cell lines, when compared with matched healthy tissue and normal human pancreatic cell lines, respectively...
May 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534914/covalent-inhibition-of-protein-tyrosine-phosphatases
#17
REVIEW
Kasi Viswanatharaju Ruddraraju, Zhong-Yin Zhang
Protein tyrosine phosphatases (PTPs) are a large family of 107 signaling enzymes that catalyze the hydrolytic removal of phosphate groups from tyrosine residues in a target protein. The phosphorylation status of tyrosine residues on proteins serve as a ubiquitous mechanism for cellular signal transduction. Aberrant function of PTPs can lead to many human diseases, such as diabetes, obesity, cancer, and autoimmune diseases. As the number of disease relevant PTPs increases, there is urgency in developing highly potent inhibitors that are selective towards specific PTPs...
May 23, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28534706/analyses-of-thrombi-in-acute-ischemic-stroke-a-consensus-statement-on-current-knowledge-and-future-directions
#18
Simon F De Meyer, Tommy Andersson, Blaise Baxter, Martin Bendszus, Patrick Brouwer, Waleed Brinjikji, Bruce Cv Campbell, Vincent Costalat, Antoni Dávalos, Andrew Demchuk, Diederik Dippel, Jens Fiehler, Urs Fischer, Michael Gilvarry, Matthew J Gounis, Jan Gralla, Olav Jansen, Tudor Jovin, David Kallmes, Pooja Khatri, Kennedy R Lees, Elena López-Cancio, Charles Majoie, Henk Marquering, Ana Paula Narata, Raul Nogueira, Peter Ringleb, Adnan Siddiqui, István Szikora, David Vale, Rüdiger von Kummer, Albert J Yoo, Werner Hacke, David S Liebeskind
Limited data exist on clot composition and detailed characteristics of arterial thrombi associated with large vessel occlusion in acute ischemic stroke. Advances in endovascular thrombectomy and related imaging modalities have created a unique opportunity to analyze thrombi removed from cerebral arteries. Insights into thrombus composition, etiology, physical properties and neurovascular interactions may lead to future advancements in acute ischemic stroke treatment and improved clinical outcomes. Advances in imaging techniques may enhance clot characterization and inform therapeutic decision-making prior to treatment and reveal stroke etiology to guide secondary prevention...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28534666/human-aminoacyl-trna-synthetases-in-diseases-of-the-nervous-system
#19
Jana Ognjenović, Miljan Simonović
Aminoacyl-tRNA synthetases (AaRSs) are ubiquitously expressed enzymes that ensure accurate translation of the genetic information into functional proteins. These enzymes also execute a variety of non-canonical functions that are significant for regulation of diverse cellular processes and that reside outside the realm of protein synthesis. Associations between faults in AaRS-mediated processes and human diseases have been long recognized. Most recent research findings strongly argue that 10 cytosolic and 14 mitochondrial AaRSs are implicated in some form of pathology of the human nervous system...
May 23, 2017: RNA Biology
https://www.readbyqxmd.com/read/28534574/syntheses-structures-and-magnetic-properties-of-a-family-of-end-on-azido-bridged-cu-ii-ln-iii-complexes
#20
Xing-Cai Huang, Xin-Hua Zhao, Dong Shao, Xin-Yi Wang
The reaction of Cu(valdmpn) (H2valdmpn = N,N'-bis-(3-methoxysalicylidene)-1,3-diamino-2,2-dimethylpropane), LnCl3·nH2O (Ln = La(1), Ce (2), Pr(3), Nd(4), Sm(5), Eu(6), Gd(7), Tb(8), Dy(9), Ho(10), Er(11), Tm(12), Yb(13), Lu(14)) and NaN3 in methanol led to a whole series of heterometallic Cu(II)-Ln(III) complexes. The basic structural components of these complexes are the [Cu(II)(valdmpn)Ln(III)] units with a compartmental Schiff-base ligand. These [Cu(II)Ln(III)] units were then further connected by the end-on (EO) azides between the Ln(3+) centers to form tetranuclear {[CuLn](μ-N3)n[LnCu]} motifs, where n is 3 for the complexes of larger radii lanthanides (1CuLa to 5CuSm) and 2 for the complexes of smaller radii lanthanides (6CuEu to 14CuLu)...
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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