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https://www.readbyqxmd.com/read/29352748/use-of-e-learning-in-clinical-clerkships-effects-on-acquisition-of-dermatological-knowledge-and-learning-processes
#1
Frederike Fransen, Herm Martens, Ivo Nagtzaam, Sylvia Heeneman
Objectives: To obtain a deeper understanding of how the e-learning program, Education in Dermatology (ED), affects the acquisition of dermatological knowledge and the underlying learning processes of medical students in their clinical phase. Methods: The study used a mixed method design with a convergent parallel collection of data. Medical students (n=62) from Maastricht University (The Netherlands) were randomized to either a conventional teaching group (control group n=30) or conventional teaching plus the e-learning program (application on smartphone) group (e-learning group n=32)...
January 17, 2018: International Journal of Medical Education
https://www.readbyqxmd.com/read/29352609/induction-of-mitophagy-in-the-hei-oc1-auditory-cell-line-and-activation-of-the-atg12-lc3-pathway-in-the-organ-of-corti
#2
Cristian Setz, Anne-Sophie Benischke, Anna Catharina Pinho Ferreira Bento, Yves Brand, Soledad Levano, Franziska Paech, Katharina Leitmeyer, Daniel Bodmer
Autophagy is a highly evolutionary conserved quality control defense mechanism within cells, which has also been implicated in cell death processes. In the mammalian inner ear, autophagy has been shown to play a role during early morphogenesis as well as in adult cochlear hair cells exposed to ototoxic insults. Mitophagy, a selective autophagic cell process targeting mitochondria, hasn't been studied in the inner ear so far. On this work, we searched for molecular indicators of mitophagy within House Ear Institute-Organ of Corti-1 (HEI-OC1) cells as well as in the organ of Corti (OC)...
January 11, 2018: Hearing Research
https://www.readbyqxmd.com/read/29352472/the-bioequivalence-of-a-single-intravenous-administration-of-the-anesthetic-alfaxalone-in-cyclodextrin-versus-alfaxalone-in-cyclodextrin-plus-preservatives-in-cats
#3
K Pasloske, M G Ranasinghe, S Sauer, J Hare
To demonstrate the bioequivalence of alfaxalone in cyclodextrin (Reference Product) to a formulation of alfaxalone in cyclodextrin also containing the preservatives ethanol, chlorocresol, and benzethonium chloride (Test Product) when administered for the purpose of inducing anesthesia in the cat. Blinded, single-dose, randomized, two-period, two-sequence, cross-over bioequivalence study with a 7-day washout period between treatments. Twenty-four (12 neutered males and 12 intact females), healthy, adult cats weighing 4...
January 19, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29352322/qportal-a-platform-for-data-driven-biomedical-research
#4
Christopher Mohr, Andreas Friedrich, David Wojnar, Erhan Kenar, Aydin Can Polatkan, Marius Cosmin Codrea, Stefan Czemmel, Oliver Kohlbacher, Sven Nahnsen
Modern biomedical research aims at drawing biological conclusions from large, highly complex biological datasets. It has become common practice to make extensive use of high-throughput technologies that produce big amounts of heterogeneous data. In addition to the ever-improving accuracy, methods are getting faster and cheaper, resulting in a steadily increasing need for scalable data management and easily accessible means of analysis. We present qPortal, a platform providing users with an intuitive way to manage and analyze quantitative biological data...
2018: PloS One
https://www.readbyqxmd.com/read/29352299/bunyavirus-requirement-for-endosomal-k-reveals-new-roles-of-cellular-ion-channels-during-infection
#5
Samantha Hover, Becky Foster, Juan Fontana, Alain Kohl, Steve A N Goldstein, John N Barr, Jamel Mankouri
In order to multiply and cause disease a virus must transport its genome from outside the cell into the cytosol, most commonly achieved through the endocytic network. Endosomes transport virus particles to specific cellular destinations and viruses exploit the changing environment of maturing endocytic vesicles as triggers to mediate genome release. Previously we demonstrated that several bunyaviruses, which comprise the largest family of negative sense RNA viruses, require the activity of cellular potassium (K+) channels to cause productive infection...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29352045/eliminating-glutamatergic-input-onto-horizontal-cells-changes-the-dynamic-range-and-receptive-field-organization-of-mouse-retinal-ganglion-cells
#6
Sebastian Ströh, Christian Puller, Sebastian Swirski, Maj-Britt Hölzel, Lea I S van der Linde, Jasmin Segelken, Konrad Schultz, Christoph Block, Hannah Monyer, Klaus Willecke, Reto Weiler, Martin Greschner, Ulrike Janssen-Bienhold, Karin Dedek
In the mammalian retina, horizontal cells receive glutamatergic inputs from many rod and cone photoreceptors and return feedback signals to them, thereby changing photoreceptor glutamate release in a light-dependent manner. Horizontal cells also provide feedforward signals to bipolar cells. It is unclear, however, how horizontal cell signals also affect the temporal, spatial and contrast tuning in retinal output neurons, the ganglion cells. To study this, we generated a genetically modified mouse line in which we eliminated the light dependency of feedback by deleting glutamate receptors from mouse horizontal cells...
January 19, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29351765/retrospective-analysis-of-insulin-responses-to-standard-dosed-oral-glucose-tests-ogts-via-naso-gastric-tubing-towards-definition-of-an-objective-cut-off-value
#7
Tobias Warnken, Julien Delarocque, Svenja Schumacher, Korinna Huber, Karsten Feige
BACKGROUND: Insulin dysregulation (ID) with basal or postprandial hyperinsulinemia is one of the key findings in horses and ponies suffering from the equine metabolic syndrome (EMS). Assessment of ID can easily be performed in clinical settings by the use of oral glucose challenge tests. Oral glucose test (OGT) performed with 1 g/kg bodyweight (BW) glucose administered via naso-gastric tube allows the exact administration of a defined glucose dosage in a short time. However, reliable cut-off values have not been available so far...
January 19, 2018: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/29351734/eogd-the-euplotes-octocarinatus-genome-database
#8
Ruan-Lin Wang, Wei Miao, Wei Wang, Jie Xiong, Ai-Hua Liang
BACKGROUND: Euplotes, a ciliated protozoan, is a useful unicellular model organism. Studies on Euplotes have provided excellent insights into various basic biological principles. We have recently sequenced the macronuclear genome of the common freshwater species Euplotes octocarinatus to provide novel insights into Euplotes genetics and molecular biology. RESULTS: In this study, we present the E. octocarinatus Genome Database (EOGD), a functional annotation and analysis platform for the global study of the Euplotes genome...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29351585/core-differences-in-synaptic-signaling-between-primary-visual-and-dorsolateral-prefrontal-cortex
#9
Sheng-Tao Yang, Min Wang, Constantinos D Paspalas, Johanna L Crimins, Marcus T Altman, James A Mazer, Amy F T Arnsten
Neurons in primary visual cortex (V1) are more resilient than those in dorsolateral prefrontal cortex (dlPFC) in aging, schizophrenia and Alzheimer's disease. The current study compared glutamate and neuromodulatory actions in macaque V1 to those in dlPFC, and found striking regional differences. V1 neuronal firing to visual stimuli depended on AMPA receptors, with subtle NMDA receptor contributions, while dlPFC depends primarily on NMDA receptors. Neuromodulatory actions also differed between regions. In V1, cAMP signaling increased neuronal firing, and the phosphodiesterase PDE4A was positioned to regulate cAMP effects on glutamate release from axons...
January 17, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29351350/visualized-analysis-of-developing-trends-and-hot-topics-in-natural-disaster-research
#10
Shi Shen, Changxiu Cheng, Jing Yang, Shanli Yang
This study visualized and analyzed the developing trends and hot topics in natural disaster research. 19694 natural disaster-related articles (January 1900 to June 2015) are indexed in the Web of Science database. The first step in this study is using complex networks to visualize and analyze these articles. CiteSpace and Gephi were employed to generate a countries collaboration network and a disciplines collaboration network, and then attached hot topics to countries and disciplines, respectively. The results show that USA, China, and Italy are the three major contributors to natural disaster research...
2018: PloS One
https://www.readbyqxmd.com/read/29351295/effects-of-a-population-based-person-centred-and-integrated-care-service-on-health-wellbeing-and-self-management-of-community-living-older-adults-a-randomised-controlled-trial-on-embrace
#11
Sophie L W Spoorenberg, Klaske Wynia, Ronald J Uittenbroek, Hubertus P H Kremer, Sijmen A Reijneveld
OBJECTIVE: To evaluate the effects of the population-based, person-centred and integrated care service 'Embrace' at twelve months on three domains comprising health, wellbeing and self-management among community-living older people. METHODS: Embrace supports older adults to age in place. A multidisciplinary team provides care and support, with intensity depending on the older adults' risk profile. A randomised controlled trial was conducted in fifteen general practices in the Netherlands...
2018: PloS One
https://www.readbyqxmd.com/read/29351284/magnetic-resonance-angiography-with-compressed-sensing-an-evaluation-of-moyamoya-disease
#12
Takayuki Yamamoto, Tomohisa Okada, Yasutaka Fushimi, Akira Yamamoto, Koji Fujimoto, Sachi Okuchi, Hikaru Fukutomi, Jun C Takahashi, Takeshi Funaki, Susumu Miyamoto, Aurélien F Stalder, Yutaka Natsuaki, Peter Speier, Kaori Togashi
Compressed sensing (CS) reconstructions of under-sampled measurements generate missing data based on assumptions of image sparsity. Non-contrast time-of-flight MR angiography (TOF-MRA) is a good candidate for CS based acceleration, as MRA images feature bright trees of sparse vessels over a well-suppressed anatomical background signal. A short scan time derived from CS is beneficial for patients of moyamoya disease (MMD) because of the frequency of MR scans. The purpose of this study was to investigate the reliability of TOF-MRA with CS in the evaluation of MMD...
2018: PloS One
https://www.readbyqxmd.com/read/29351010/using-human-vision-to-detect-variation-in-avian-coloration-how-bad-is-it
#13
Zachary T Bergeron, Rebecca C Fuller
Assessing variation in animal coloration is difficult, as animals differ in their visual system properties. This has led some to propose that human vision can never be used to evaluate coloration, yet many studies have a long history of relying on human vision. To reconcile these views, we compared the reflectance spectra of preserved avian plumage elements with two measures that are human biased: RGB values from digital photographs and the corresponding reflectance spectra from a field guide. We measured 73 plumage elements across 14 bird species...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350559/visualizing-3d-food-microstructure-using-tomographic-methods-advantages-and-disadvantages
#14
Zi Wang, Els Herremans, Siem Janssen, Dennis Cantre, Pieter Verboven, Bart Nicolaï
X-ray micro-computed tomography (micro-CT) provides the unique ability to capture intact internal microstructure data without significant preparation of the sample. The fundamentals of micro-CT technology are briefly described along with a short introduction to basic image processing, quantitative analysis, and derivative computational modeling. The applications and limitations of micro-CT in industries such as meat, dairy, postharvest, and bread/confectionary are discussed to serve as a guideline to the plausibility of utilizing the technique for detecting features of interest...
January 18, 2018: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/29350389/three-dimensional-visualization-of-coronary-sinus-ostium-from-the-inside-right-atrium-perspective
#15
Rafał Młynarski, Agnieszka Młynarska, Krzysztof S Gołba, Maciej Sosnowski
BACKGROUND: There is no in vivo method of coronary sinus visualization from the right atrium perspective. The objective of the study was to create a cardiac computed tomography angiography (CT) - based method of visualizing the coronary sinus ostium and the Thebesian valve from the inside right atrium perspective. METHODS: In 78 consecutive patients, a cardiac CT angiography (Aquilion 64, Toshiba) with retrospective gating (slice 0.5mm) was performed. Raw data were reconstructed on Vitrea 2 workstations (Vital Images)...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29350098/commentary-to-18f-gp1-a-novel-pet-tracer-designed-for-high-sensitivity-low-background-detection-of-thrombi-imaging-activated-platelets-in-clots-are-we-getting-there
#16
Andrew W Stephens, Norman Koglin, Ludger M Dinkelborg
Thrombus formation can lead to heart attacks, stroke and pulmonary embolism, which are major causes of mortality. Current standard diagnostic imaging methods detect anatomic abnormalities such as vascular flow impairment but have limitations. By using a targeted molecular imaging approach critical components of a pathology can be selectively visualized and exploited for an improved diagnosis and patient management. The GPIIb/IIIa receptor is abundantly and specifically exposed on activated platelets and is the key receptor in thrombus formation...
January 2018: Molecular Imaging
https://www.readbyqxmd.com/read/29349999/-percutaneous-endoscopic-lumbar-discectomy-combined-with-epidural-injection-for-prolapsed-lumbar-disc-herniation
#17
Hai-Hao Wu, Tao Tang, Qing-Jiang Pang, Yun Wang, Zong-Kai Zhang
OBJECTIVE: To assess the effect of percutaneous endoscopic lumbar discectomy (PELD) combined with epidural injection for prolapsed lumbar disc herniation(PLDH). METHODS: In this prospective randomized controlled study, the clinical data of 126 patients who had undergone a PELD because of a single-level PLDH from March 2014 to June 2015 were analyzed. There were 67 males and 59 females, ranging in age from 17 to 75 years old with an average of(41.0±13.5) years old, 9 cases were L₃,₄, 76 cases were L₄,₅ and 41 cases were L₅S₁...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349985/-risk-factors-analysis-for-low-back-pain-in-patients-with-multiple-sclerosis
#18
Meng-Qi Na, Shan Deng, Xian-Lei Yan, Yu-Lin Wang
OBJECTIVE: To investigate musculoskeletal disorders and risk factors of low back pain in multiple sclerosis (MS) patients. METHODS: In this study, patients in our hospital with confirmed MS with an expanded disabilitystatus scale (EDSS) score between 4 to 7 were selected. Data of MS history, pain, musculoskeletal disorders, muscle strength and spasticity in lower limbs were collected. RESULTS: Among 190 patients, there were 61 males and 129 females, with an average age of(54...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349523/prognostic-factors-of-pediatric-glaucoma-a-retrospective-study
#19
Marilita M Moschos, Eirini Nitoda, Isabelle Fenzel, Xuefei Song, Achim Langenbucher, Barbara Kaesmann, Berthold Seitz, Zisis Gatzioufas
PURPOSE: To correlate the features of certain types of infantile glaucoma with the progression and the prognosis of the disease, highlighting probable risk factors. METHODS: Seventy-six patients with pediatric glaucoma were recruited in this retrospective study. All patients underwent ophthalmological examination in the Department of Ophthalmology of the Saarland University Medical Center from January 2001 to December 2012. Our pediatric patients were classified into four different categories of glaucoma: (1) primary congenital glaucoma (presenting buphthalmus), (2) aniridia-related glaucoma, (3) Peters/Rieger's anomaly-related glaucoma and (4) congenital cataract-related glaucoma...
January 18, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29349046/reduction-of-closed-frontal-sinus-fractures-through-suprabrow-approach
#20
Hyung Min Hahn, Yoo Jung Lee, Myong Chul Park, Il Jae Lee, Sue Min Kim, Dong Ha Park
Background: The traditional approach for reduction of frontal sinus fractures is coronal incision. Inherent complications of the coronal approach include long scar, hair loss, and long operation time. We describe a simple approach for the reduction of frontal sinus anterior wall fractures using a suprabrow incision that is commonly used for brow lift. Methods: From March 2007 to October 2016, the authors identified patients with anterior wall frontal sinus fractures treated by open reduction through a suprabrow incision...
December 2017: Archives of Craniofacial Surgery
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