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https://www.readbyqxmd.com/read/29159889/a-systematic-surveillance-programme-for-infectious-salmon-anaemia-virus-supports-its-absence-in-the-pacific-northwest-of-the-united-states
#1
L L Gustafson, L H Creekmore, K R Snekvik, J A Ferguson, J V Warg, M Blair, T R Meyers, B Stewart, K I Warheit, J Kerwin, A E Goodwin, L D Rhodes, J E Whaley, M K Purcell, C Bentz, D Shasa, J Bader, J R Winton
In response to reported findings of infectious salmon anaemia virus (ISAV) in British Columbia (BC), Canada, in 2011, U.S. national, state and tribal fisheries managers and fish health specialists developed and implemented a collaborative ISAV surveillance plan for the Pacific Northwest region of the United States. Accordingly, over a 3-1/2-year period, 4,962 salmonids were sampled and successfully tested by real-time reverse-transcription PCR. The sample set included multiple tissues from free-ranging Pacific salmonids from coastal regions of Alaska and Washington and farmed Atlantic salmon (Salmo salar L...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29158645/evaluation-of-functional-outcome-of-pilon-fractures-managed-with-limited-internal-fixation-and-external-fixation-a-prospective-clinical-study
#2
Umesh Kumar Meena, Mahesh Chand Bansal, Prateek Behera, Rahul Upadhyay, Gyan Chand Gothwal
Introduction: The management of pilon fractures is controversial primarily due to the high rate of complications irrespective of the mode of treatment. Limited internal fixation with external fixation is associated with minimal soft tissue handling. This may reduce the chances of wound dehiscence and infection. This study was designed to evaluate the functional and clinical outcomes in patients treated with limited internal fixation combined with external fixation in pilon fractures. Material and methods: This study was conducted as a prospective clinical study on 56 skeletally mature patients with closed fractures with poor skin condition, and with open grade 1 and grade 2 distal tibial intra-articular fractures...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29158269/the-glucocorticoid-receptor-is-a-key-player-for-prostate-cancer-cell-survival-and-a-target-for-improved-anti-androgen-therapy
#3
Martin Puhr, Julia Hoefer, Andrea Eigentler, Christian Ploner, Florian Handle, Georg Schaefer, Jan Kroon, Angela Leo, Isabel M Heidegger, Iris E Eder, Zoran Culig, Gabri van der Pluijm, Helmut Klocker
PURPOSE: The major obstacle in the management of advanced prostate cancer (PCa) is the occurrence of resistance to endocrine-therapy. Although the androgen receptor (AR) has been linked to therapy failure, the underlying escape mechanisms have not been fully clarified. Being closely related to the AR, the glucocorticoid receptor (GR) has been suggested to play a role in enzalutamide and docetaxel resistance. Given that glucocorticoids are frequently applied to PCa patients, it is essential to unravel the exact role of the GR in PCa progression...
November 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29156929/-role-of-the-egg-in-the-diet-of-athletes-and-physically-active-people
#4
Ana M López Sobaler, Aránzazu Aparicio Vizuete, Rosa M Ortega
The practice of sport and medium-high intensity exercise increases the needs of energy and nutrients. Proper nutrition is very important for reaching the maximum performance, reducing the risk of injury, and ensuring the best recovery. It must also ensure the achievement of optimum nutritional status and prevent health problems at the present and in the future time. Eggs are a very nutritious food that can help athletes to achieve a correct diet. It contains proteins of high quality and bioavailability, a profile of fatty acids very favorable from the cardiovascular point of view, and vitamins and minerals involved in energy and protein metabolism, in defense against oxidative stress and inflammation, in cell growth and tissue repair...
October 15, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29155710/dna-nanotubes-as-a-versatile-tool-to-study-semiflexible-polymers
#5
Jörg Schnauß, Martin Glaser, Jessica S Lorenz, Carsten Schuldt, Christin Möser, Martin Sajfutdinow, Tina Händler, Josef A Käs, David M Smith
Mechanical properties of complex, polymer-based soft matter, such as cells or biopolymer networks, can be understood in neither the classical frame of flexible polymers nor of rigid rods. Underlying filaments remain outstretched due to their non-vanishing backbone stiffness, which is quantified via the persistence length (lp), but they are also subject to strong thermal fluctuations. Their finite bending stiffness leads to unique, non-trivial collective mechanics of bulk networks, enabling the formation of stable scaffolds at low volume fractions while providing large mesh sizes...
October 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155650/assessment-of-national-public-health-and-reference-laboratory-accra-ghana-within-framework-of-global-health-security
#6
Adaeze Ogee-Nwankwo, David Opare, Gifty Boateng, Mawuli Nyaku, Lia M Haynes, S Arunmozhi Balajee, Laura Conklin, Joseph P Icenogle, Paul A Rota, Diane Waku-Kouomou
The Second Year of Life project of the Global Health Security Agenda aims to improve immunization systems and strengthen measles and rubella surveillance, including building laboratory capacity. A new laboratory assessment tool was developed by the Centers for Disease Control and Prevention to assess the national laboratory in Ghana to improve molecular surveillance for measles and rubella. Results for the tool showed that the laboratory is well organized, has a good capacity for handling specimens, has a good biosafety system, and is proficient for diagnosis of measles and rubella by serologic analysis...
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29148432/a-singular-value-decomposition-linear-programming-svdlp-optimization-technique-for-circular-cone-based-robotic-radiotherapy
#7
Bin Liang, Yongbao Li, Wei Ran, Bin Guo, Xuang Xu, Bo Liu, Jiafeng Li, Qiuwen Wu, Fugen Zhou
With robot-controlled linac positioning, the robotic radiotherapy system such as CyberKnife significantly increases the freedom in radiation beam placement, but also imposes more challenges on treatment plan optimization. The resampling mechanism in vendor supplied treatment planning system (MultiPlan) could not fully explore the increased beam direction search space. Besides, a sparse treatment plan (using fewer beams) is desired to improve the treatment efficiency. This study proposes a singular value decomposition linear programming (SVDLP) optimization technique for circular collimator based robotic radiotherapy...
November 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29145966/outcome-evaluation-of-staged-treatment-for-bicondylar-tibial-plateau-fractures
#8
Vincenzo Giordano, Ney Pecegueiro do Amaral, Hilton A Koch, Rodrigo Pires E Albuquerque, Felipe Serrão de Souza, José Félix Dos Santos Neto
BACKGROUND: The universal accepted strategy for treating high-energy tibial plateau fractures remains a topic of ongoing debate. The challenge for the practicing orthopaedic trauma surgeon is to provide anatomical articular fracture reduction, with successfully managing the complex soft-tissue injury that is commonly present at patient admission. The primary aim of the actual study was to evaluate the results of a staged protocol for the treatment of high-energy bicondylar tibial plateau fractures...
October 2017: Injury
https://www.readbyqxmd.com/read/29145393/estimating-the-probabilities-of-rare-arrhythmic-events-in-multiscale-computational-models-of-cardiac-cells-and-tissue
#9
Mark A Walker, Viatcheslav Gurev, John J Rice, Joseph L Greenstein, Raimond L Winslow
Ectopic heartbeats can trigger reentrant arrhythmias, leading to ventricular fibrillation and sudden cardiac death. Such events have been attributed to perturbed Ca2+ handling in cardiac myocytes leading to spontaneous Ca2+ release and delayed afterdepolarizations (DADs). However, the ways in which perturbation of specific molecular mechanisms alters the probability of ectopic beats is not understood. We present a multiscale model of cardiac tissue incorporating a biophysically detailed three-dimensional model of the ventricular myocyte...
November 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29144723/inorganic-strengthened-hydrogel-membrane-as-regenerative-periosteum
#10
Tianwen Xin, Yong Gu, Ruoyu Cheng, Jincheng Tang, Zhiyong Sun, Wenguo Cui, Liang Chen
Periosteum plays the pivotal role in neomineralization, vascularization and protection during bone tissue regeneration. However, many artificial periosteum focused only on protection and lacked of the osteogenesis and angiogenesis functional capacity. In this study, we developed a novelty inorganic strengthened gelatin hydrogel membrane via inorganic and organic co-cross-linked double network as artificial periosteum for enhancing the durable angiogenesis and osteogenesis in bone reconstruction. Mesoporous bioactive glass nanoparticles (MBGNs) chemically modified with photo-cross-linkable gelatin derivative (GelMA) were further incorporated into GelMA to fabricate an organic/inorganic co-cross-linked hydrogel membrane (GelMA-G-MBGNs)...
November 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29143524/injectable-shear-thinning-caso4-fgf-18-incorporated-chitin-plga-hydrogels-enhances-bone-regeneration-in-mice-cranial-bone-defect-model
#11
Sivashanmugam Amirthalingam, Pornkawee Charoenlarp, Sankar Deepthi, ArunKumar Rajendran, Shantikumar V Nair, Sachiko Iseki, Rangasamy Jayakumar
For craniofacial bone regeneration, shear thinning injectable hydrogels are favoured over conventional scaffolds due to their improved defect margin adaptability, easier handling and ability to be injected manually into deeper tissues. The most accepted method, after autografting, is the use of recombinant human BMP-2; however, complications such as inter-individual variations, edema, and poor cost-efficiency in supraphysiological doses have been reported. The endogenous synthesis of BMP-2 is desirable, and a molecule which induces this is FGF-18 since it can up-regulate the BMP-2 expression and positively modulate other osteogenic genes...
November 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29139101/-endobronchial-ultrasound-ebus-an-update-2017
#12
K Darwiche, F Özkan, C Wolters, S Eisenmann
Endobronchial Ultrasound (EBUS) with the two modalities curved and radial EBUS significantly improved the diagnostics in several pulmonary diseases. The examination and staging of mediastinal and hilar lymph nodes in patients with known or suspected lung malignancy as well as the evaluation of unknown pulmonary or mediastinal lesions can be achieved with minimal invasive means when using EBUS. More invasive surgical procedures for diagnostic purposes can be omitted. The diagnostic yield also increases when EBUS is applied in sarcoidosis or mediastinal lymph node tuberculosis but only to some extend in case of lymphoma...
November 2017: Pneumologie
https://www.readbyqxmd.com/read/29134783/electrospun-titania-fiber-mats-spin-coated-with-thin-polymer-films-as-nanofibrous-scaffolds-for-enhanced-cell-proliferation
#13
Alfin Kurniawan, Chintya Effendi, Meng-Jiy Wang
The incorporation of inorganic materials into electrospun nanofibers has recently gained considerable attention for the development of ECM-like scaffolds with improved mechanical properties and enhanced biological functions for tissue engineering applications. In this study, polymer-inorganic composite fibers consisting of poly(2-ethyl-2-oxazoline) (PEOXA) and tetrabutyl titanate (TBT) as the titanium precursor were successfully fabricated through a combined sol-gel/electrospinning approach. PEOXA/Ti(OR)n composite fibers were obtained with varying amounts of polymer and titanium precursors...
November 14, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29134236/-arthroscopic-soft-tissue-stabilization-of-posttraumatic-anterior-shoulder-instability-techniques-limitations-and-long-term-results
#14
REVIEW
B Ockert, N Biermann, W Nebelung, E Wiedemann
Arthroscopic soft tissue stabilization is a well-established and broadly accepted procedure to treat posttraumatic shoulder instability. Advantages in comparison to open stabilization procedures include improved visualization of the structural damage and a less invasive approach. Technical developments in recent years have led to further improvement of the arthroscopic technique for shoulder instability. This article presents a description of principles and new developments as it contains basic techniques including patient positioning, access portals, preparation of the glenoid bone, soft tissue handling and shuttle techniques...
November 13, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29133152/laparoscopic-assisted-uterus-retrieval-from-live-organ-donors-for-uterine-transplant
#15
Shailesh Puntambekar, Milind Telang, Pankaj Kulkarni, Sanjeev Jadhav, Ravindra Sathe, Neeta Warty, Seema Puntambekar, Sandesh Kade, Mangesh Panse, Nikhil Agarkhedkar, Giriraj Gandhi, Manoj Manchekar, Hirav Parekh, Kajal Parikh, Riddhi Desai, Mehul Mehta, Mihir Chitale, Sambit Nanda
OBJECTIVE: The authors present the first ever laparoscopic assisted uterus retrieval in live donor for uterus transplant. DESIGN: A step-by-step surgical demonstration SETTING: Galaxy CARE Laparoscopy Institute, Pune, India PATIENT(S): Two patients, ages 21 and 26 with Mayer Rokitansky Kuster Hauser (MRKH) syndrome and Ashermann's syndrome respectively, with their mothers as donors. INTERVENTION(S): A Twelve member team was formed. After review of available literature on uterine transplant a protocol was formulated and submitted to the IRB...
November 10, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29132097/the-development-of-a-new-artificial-model-of-a-finger-for-assessing-transmitted-vibrations
#16
Almaky Almagirby, Jem A Rongong, Matt J Carré
Prolonged exposure of the hand to tool-induced vibrations is associated with the occurrence of conditions such as vibration white finger. This study involves the development of a new artificial model that approximates both loading and vibration behaviour of the human finger. The layered system uses polypropylene "bones", encased in a cylinder of low modulus, room-temperature curing silicone gel (to replicate subcutaneous tissues), with an outer layer of latex (to replicate the dermis and epidermis). A protocol for manufacture was developed and dynamic mechanical analysis was carried out on a range of gels in order to choose a range close to the mechanical properties of the human finger...
November 4, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29131497/development-of-endothelial-cell-networks-in-3d-tissues-by-combination-of-melt-electrospinning-writing-with-cell-accumulation-technology
#17
Sarah Bertlein, Daichi Hikimoto, Gernot Hochleitner, Julia Hümmer, Tomasz Jungst, Michiya Matsusaki, Mitsuru Akashi, Jürgen Groll
A remaining challenge in tissue engineering approaches is the in vitro vascularization of engineered constructs or tissues. Current approaches in engineered vascularized constructs are often limited in the control of initial vascular network geometry, which is crucial to ensure full functionality of these constructs with regard to cell survival, metabolic activity, and potential differentiation ability. Herein, the combination of 3D-printed poly-ε-caprolactone scaffolds via melt electrospinning writing with the cell-accumulation technique to enable the formation and control of capillary-like network structures is reported...
November 13, 2017: Small
https://www.readbyqxmd.com/read/29131161/rapid-virtual-hematoxylin-and-eosin-histology-of-breast-tissue-specimens-using-a-compact-fluorescence-nonlinear-microscope
#18
Lucas C Cahill, Michael G Giacomelli, Tadayuki Yoshitake, Hilde Vardeh, Beverly E Faulkner-Jones, James L Connolly, Chi-Kuang Sun, James G Fujimoto
Up to 40% of patients undergoing breast conserving surgery for breast cancer require repeat surgeries due to close to or positive margins. The lengthy processing required for evaluating surgical margins by standard paraffin-embedded histology precludes its use during surgery and therefore, technologies for rapid evaluation of surgical pathology could improve the treatment of breast cancer by reducing the number of surgeries required. We demonstrate real-time histological evaluation of breast cancer surgical specimens by staining specimens with acridine orange (AO) and sulforhodamine 101 (SR101) analogously to hematoxylin and eosin (H&E) and then imaging the specimens with fluorescence nonlinear microscopy (NLM) using a compact femtosecond fiber laser...
November 13, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29128605/erythrocytes-as-a-biological-model-for-screening-of-xenobiotics-toxicity
#19
REVIEW
Mayada Ragab Farag, Mahmoud Alagawany
Erythrocytes are the main cells in circulation. They are devoid of internal membrane structures and easy to be isolated and handled providing a good model for different assays. Red blood cells (RBCs) plasma membrane is a multi-component structure that keeps the cell morphology, elasticity, flexibility and deformability. Alteration of membrane structure upon exposure to xenobiotics could induce various cellular abnormalities and releasing of intracellular components. Therefore the morphological changes and extracellular release of haemoglobin [hemolysis] and increased content of extracellular adenosine triphosphate (ATP) [as signs of membrane stability] could be used to evaluate the cytotoxic effects of various molecules...
November 8, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29125993/substrate-and-mechanotransduction-influence-serca2a-localization-in-human-pluripotent-stem-cell-derived-cardiomyocytes-affecting-functional-performance
#20
Sebastian Martewicz, Elena Serena, Susi Zatti, Gordon Keller, Nicola Elvassore
Physical cues are major determinants of cellular phenotype and evoke physiological and pathological responses on cell structure and function. Cellular models aim to recapitulate basic functional features of their in vivo counterparts or tissues in order to be of use in in vitro disease modeling or drug screening and testing. Understanding how culture systems affect in vitro development of human pluripotent stem cell (hPSC)-derivatives allows optimization of cellular human models and gives insight in the processes involved in their structural organization and function...
October 16, 2017: Stem Cell Research
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