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https://www.readbyqxmd.com/read/28192039/endemic-infection-of-stranded-southern-sea-otters-enhydra-lutris-nereis-with-novel-parvovirus-polyomavirus-and-adenovirus
#1
Juliana D Siqueira, Terry Ng, Melissa Miller, Linlin Li, Xutao Deng, Erin Dodd, Francesca Batac, Eric Delwart
Over the past century, the southern sea otter (SSO; Enhydra lutris nereis) population has been slowly recovering from near extinction due to overharvest. The SSO is a threatened species under federal law and a fully protected species under California law. Through a multiagency collaborative program, stranded animals are rehabilitated and released, while deceased animals are necropsied and tissues are cryopreserved to facilitate scientific study. Here, we processed archival tissues to enrich particle-associated viral nucleic acids, which we randomly amplified and deeply sequenced to identify viral genomes through sequence similarities...
February 13, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28188220/cannabinoids-activate-monoaminergic-signaling-to-modulate-key-c-elegans-behaviors
#2
Mitchell Oakes, Wen Jing Law, Tobias Clark, Bruce Bamber, Richard Komuniecki
Cannabis or marijuana, a popular recreational drug, alters sensory perception and exerts a range of potential medicinal benefits. The present study demonstrates that the endogenous cannabinoid receptor agonists, 2-arachidonoylglycerol (2-AG) and anandamide (AEA) activate a canonical cannabinoid receptor in C. elegans and also modulate monoaminergic signaling at multiple levels. 2-AG or AEA inhibit nociception and feeding through a pathway requiring the cannabinoid-like receptor, NPR-19. 2-AG or AEA activate NPR-19 directly and cannabinoid-dependent inhibition can be rescued in npr-19 null animals by the expression of a human cannabinoid receptor, CB1, highlighting the orthology of the receptors...
February 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28174218/knowledge-and-opinions-of-veterinary-students-in-italy-toward-animal-welfare-science-and-law
#3
D Magnani, N Ferri, A Dalmau, S Messori
Animal welfare (AW) is a growing concern worldwide and veterinary students are expected to demonstrate a high degree of professional interest in the welfare of animals. However, previous studies have highlighted gaps in the teaching of AW teaching in different countries, possibly impairing veterinary competency in the area. This survey aimed to assess the opinions of Italian veterinary students towards AW, as well as their knowledge on the issue. Questions were divided into different sections, investigating the definition of, and information on, AW, knowledge about AW legislation, and the level of tolerance towards AW in regard to the use of animals for different purposes...
February 7, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28169362/allometric-scaling-in-vitro
#4
Arti Ahluwalia
About two decades ago, West and coworkers established a model which predicts that metabolic rate follows a three quarter power relationship with the mass of an organism, based on the premise that tissues are supplied nutrients through a fractal distribution network. Quarter power scaling is widely considered a universal law of biology and it is generally accepted that were in-vitro cultures to obey allometric metabolic scaling, they would have more predictive potential and could, for instance, provide a viable substitute for animals in research...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28163884/touchdown-to-take-off-at-the-interface-of-flight-and-surface-locomotion
#5
REVIEW
William R T Roderick, Mark R Cutkosky, David Lentink
Small aerial robots are limited to short mission times because aerodynamic and energy conversion efficiency diminish with scale. One way to extend mission times is to perch, as biological flyers do. Beyond perching, small robot flyers benefit from manoeuvring on surfaces for a diverse set of tasks, including exploration, inspection and collection of samples. These opportunities have prompted an interest in bimodal aerial and surface locomotion on both engineered and natural surfaces. To accomplish such novel robot behaviours, recent efforts have included advancing our understanding of the aerodynamics of surface approach and take-off, the contact dynamics of perching and attachment and making surface locomotion more efficient and robust...
February 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28149703/expanding-our-understanding-of-the-trade-in-marine-aquarium-animals
#6
Andrew L Rhyne, Michael F Tlusty, Joseph T Szczebak, Robert J Holmberg
The trade of live marine animals for home and public aquaria has grown into a major global industry. Millions of marine fishes and invertebrates are removed from coral reefs and associated habitats each year. The majority are imported into the United States, with the remainder sent to Europe, Japan, and a handful of other countries. Despite the recent growth and diversification of the aquarium trade, to date, data collection is not mandatory, and hence comprehensive information on species volume and diversity is lacking...
2017: PeerJ
https://www.readbyqxmd.com/read/28120807/the-speed-curvature-power-law-in-drosophila-larval-locomotion
#7
Myrka Zago, Francesco Lacquaniti, Alex Gomez-Marin
We report the discovery that the locomotor trajectories of Drosophila larvae follow the power-law relationship between speed and curvature previously found in the movements of human and non-human primates. Using high-resolution behavioural tracking in controlled but naturalistic sensory environments, we tested the law in maggots tracing different trajectory types, from reaching-like movements to scribbles. For most but not all flies, we found that the law holds robustly, with an exponent close to three-quarters rather than to the usual two-thirds found in almost all human situations, suggesting dynamic effects adding on purely kinematic constraints...
October 2016: Biology Letters
https://www.readbyqxmd.com/read/28093294/strehler-mildvan-correlation-is-a-degenerate-manifold-of-gompertz-fit
#8
Andrei E Tarkhov, Leonid I Menshikov, Peter O Fedichev
Gompertz empirical law of mortality is often used in practical research to parametrize survival fraction as a function of age with the help of just two quantities: the Initial Mortality Rate (IMR) and the Gompertz exponent, inversely proportional to the Mortality Rate Doubling Time (MRDT). The IMR is often found to be inversely related to the Gompertz exponent, which is the dependence commonly referred to as Strehler-Mildvan (SM) correlation. In this paper, we address fundamental uncertainties of the Gompertz parameters inference from experimental Kaplan-Meier plots and show, that a least squares fit often leads to an ill-defined non-linear optimization problem, which is extremely sensitive to sampling errors and the smallest systematic demographic variations...
January 16, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28081063/state-laws-requiring-hand-sanitation-stations-at-animal-contact-exhibits-united-states-march-april-2016
#9
Aila Hoss, Colin Basler, Lauren Stevenson, Kelly Gambino-Shirley, Misha Park Robyn, Megin Nichols
In the United States, animal contact exhibits, such as petting zoos and agricultural fairs, have been sources of zoonotic infections, including infections with Escherichia coli, Salmonella, and Cryptosporidium (1-4). The National Association of State Public Health Veterinarians recommends handwashing after contact with animals as an effective prevention measure to disease transmission at these exhibits (4). This report provides a list of states that have used law, specifically statutes and regulations, as public health interventions to increase hand sanitation at animal contact exhibits...
January 13, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28077761/on-the-autorotation-of-animal-wings
#10
Victor Manuel Ortega-Jimenez, Antonio Martín-Alcántara, Ramon Fernandez-Feria, Robert Dudley
Botanical samaras spin about their centre of mass and create vertical aerodynamic forces which slow their rate of descent. Descending autorotation of animal wings, however, has never been documented. We report here that isolated wings from Anna's hummingbirds, and also from 10 species of insects, can stably autorotate and achieve descent speeds and aerodynamic performance comparable to those of samaras. A hummingbird wing loaded at its base with the equivalent of 50% of the bird's body mass descended only twice as fast as an unloaded wing, and rotated at frequencies similar to those of the wings in flapping flight...
January 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28053075/refinement-reduction-and-replacement-of-animal-toxicity-tests-by-computational-methods
#11
Kevin A Ford
Widespread public and scientific interest in promoting the care and well-being of animals used for toxicity testing has given rise to improvements in animal welfare practices and views over time, as well as laws and regulations that support means to reduce, refine, and replace animal use (known as the 3Rs) in certain toxicity studies. One way these regulations continue to achieve their aim is by promoting the research, development, and application of alternative testing approaches to characterize potential toxicities either without animals or with minimal use...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28046891/we-fg-206-12-enhanced-laws-textures-a-potential-mri-surrogate-marker-of-hepatic-fibrosis-in-a-murine-model
#12
B Li, H Yu, H Jara, J Soto, S Anderson
PURPOSE: To compare enhanced Laws texture derived from parametric proton density (PD) maps to other MRI-based surrogate markers (T2, PD, ADC) in assessing degrees of liver fibrosis in a murine model of hepatic fibrosis using 11.7T scanner. METHODS: This animal study was IACUC approved. Fourteen mice were divided into control (n=1) and experimental (n=13). The latter were fed a DDC-supplemented diet to induce hepatic fibrosis. Liver specimens were imaged using an 11...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28029405/distributed-learning-developing-a-predictive-model-based-on-data-from-multiple-hospitals-without-data-leaving-the-hospital-a-real-life-proof-of-concept
#13
Arthur Jochems, Timo M Deist, Johan van Soest, Michael Eble, Paul Bulens, Philippe Coucke, Wim Dries, Philippe Lambin, Andre Dekker
PURPOSE: One of the major hurdles in enabling personalized medicine is obtaining sufficient patient data to feed into predictive models. Combining data originating from multiple hospitals is difficult because of ethical, legal, political, and administrative barriers associated with data sharing. In order to avoid these issues, a distributed learning approach can be used. Distributed learning is defined as learning from data without the data leaving the hospital. PATIENTS AND METHODS: Clinical data from 287 lung cancer patients, treated with curative intent with chemoradiation (CRT) or radiotherapy (RT) alone were collected from and stored in 5 different medical institutes (123 patients at MAASTRO (Netherlands, Dutch), 24 at Jessa (Belgium, Dutch), 34 at Liege (Belgium, Dutch and French), 48 at Aachen (Germany, German) and 58 at Eindhoven (Netherlands, Dutch))...
October 28, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27995964/an-unbiased-analysis-of-candidate-mechanisms-for-the-regulation-of-drosophila-wing-disc-growth
#14
Jannik Vollmer, Dagmar Iber
The control of organ size presents a fundamental open problem in biology. A declining growth rate is observed in all studied higher animals, and the growth limiting mechanism may therefore be evolutionary conserved. Most studies of organ growth control have been carried out in Drosophila imaginal discs. We have previously shown that the area growth rate in the Drosophila eye primordium declines inversely proportional to the increase in its area, which is consistent with a dilution mechanism for growth control...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27942753/cyanophycinase-cphe-from-p-alcaligenes-produced-in-different-compartments-of-n-benthamiana-degrades-high-amounts-of-cyanophycin-in-plant-extracts
#15
Henrik Nausch, Inge Broer
One of the major constraints in pig and poultry farming is the supply of protein-rich forage, containing sufficient amounts of key amino acids such as arginine (Ufaz and Galili 2008). Since these are underrepresented in plant proteins, the usage of plants as feed is limited. The heterologous production of the cyanobacterial storage polymer cyanophycin granule polypeptide (CGP) in plastids increases the amount of arginine substantially (Huhns et al. 2008; Huhns et al. 2009; Nausch et al. 2016a). CGP degradation releases arginine-aspartate dipeptides...
December 9, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27938416/active-animal-health-surveillance-in-european-union-member-states-gaps-and-opportunities
#16
B Bisdorff, B Schauer, N Taylor, V Rodríguez-Prieto, A Comin, A Brouwer, F Dórea, J Drewe, L Hoinville, A Lindberg, M Martinez Avilés, B Martínez-López, M Peyre, J Pinto Ferreira, J Rushton, G VAN Schaik, K D C Stärk, C Staubach, M Vicente-Rubiano, G Witteveen, D Pfeiffer, B Häsler
Animal health surveillance enables the detection and control of animal diseases including zoonoses. Under the EU-FP7 project RISKSUR, a survey was conducted in 11 EU Member States and Switzerland to describe active surveillance components in 2011 managed by the public or private sector and identify gaps and opportunities. Information was collected about hazard, target population, geographical focus, legal obligation, management, surveillance design, risk-based sampling, and multi-hazard surveillance. Two countries were excluded due to incompleteness of data...
December 12, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27936094/lutein-attenuates-both-apoptosis-and-autophagy-upon-cobalt-ii-chloride-induced-hypoxia-in-rat-m%C3%A5-ller-cells
#17
Frederic K C Fung, Betty Y K Law, Amy C Y Lo
Retinal ischemia/reperfusion injury is a common feature of various retinal diseases such as glaucoma and diabetic retinopathy. Lutein, a potent anti-oxidant, is used to improve visual function in patients with age-related macular degeneration (AMD). Lutein attenuates apoptosis, oxidative stress and inflammation in animal models of acute retinal ischemia/hypoxia. Here, we further show that lutein improved Műller cell viability and enhanced cell survival upon hypoxia-induced cell death through regulation of intrinsic apoptotic pathway...
2016: PloS One
https://www.readbyqxmd.com/read/27932708/charity-reveals-the-difficulties-of-enforcing-animal-welfare-law
#18
(no author information available yet)
No abstract text is available yet for this article.
December 10, 2016: Veterinary Record
https://www.readbyqxmd.com/read/27859354/public-challenge-and-endorsement-of-sex-category-ambiguity-in-online-debate-the-sooner-people-stop-thinking-that-gender-is-a-matter-of-choice-the-better
#19
Helen Sweeting, Matthew William Maycock, Laura Walker, Kate Hunt
Despite academic feminist debate over several decades, the binary nature of sex as a (perhaps the) primary social classification is often taken for granted, as is the assumption that individuals can be unproblematically assigned a biological sex at birth. This article presents analysis of online debate on the BBC news website in November 2013, comprising 864 readers' responses to an article entitled 'Germany allows 'indeterminate' gender at birth'. It explores how discourse reflecting Western essentialist beliefs about people having one sex or 'the other' is maintained in debates conducted in this online public space...
November 16, 2016: Sociology of Health & Illness
https://www.readbyqxmd.com/read/27856399/enhanced-laws-textures-a-potential-mri-surrogate-marker-of-hepatic-fibrosis-in-a-murine-model
#20
Baojun Li, Hernan Jara, Heishun Yu, Michael O'Brien, Jorge Soto, Stephan W Anderson
PURPOSE: To compare enhanced Laws textures derived from parametric proton density (PD) maps to other MRI surrogate markers (T2, PD, apparent diffusion coefficient (ADC)) in assessing degrees of liver fibrosis in an ex vivo murine model of hepatic fibrosis imaged using 11.7T MRI. METHODS: This animal study was IACUC approved. Fourteen male, C57BL/6 mice were divided into control and experimental groups. The latter were fed a 3,5-dicarbethoxy-1,4-dihydrocollidine (DDC) supplemented diet to induce hepatic fibrosis...
November 14, 2016: Magnetic Resonance Imaging
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