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https://www.readbyqxmd.com/read/28095847/the-biomedical-piglet-establishing-reference-intervals-for-haematology-and-clinical-chemistry-parameters-of-two-age-groups-with-and-without-iron-supplementation
#1
Domenico Ventrella, Francesco Dondi, Francesca Barone, Federica Serafini, Alberto Elmi, Massimo Giunti, Noemi Romagnoli, Monica Forni, Maria L Bacci
BACKGROUND: The similarities between swine and humans in physiological and genomic patterns, and the great correlation in size and anatomy, make pigs extremely useful in preclinical studies. New-born piglets can represent a model for congenital and genetic diseases in new-born children. It is known that piglets may have significant differences in clinicopathological results compared to adult pigs. Therefore, adult laboratory reference intervals cannot be applied to piglets. The aim of this study was to compare haematological and chemical variables in piglets of two ages and determinate age-related reference intervals for commercial hybrid young pigs...
January 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28076320/solid-waste-management-in-thailand-an-overview-and-case-study-tha-khon-yang-sub-district
#2
Nachalida Yukalang, Beverley Dawn Clarke, Kirstin Elizabeth Ross
Due to rapid urbanization, solid waste management (SWM) has become a significant issue in several developing countries including Thailand. Policies implemented by the Central Thai Government to manage SWM issues have had only limited success. This article reviews current municipal waste management plans in Thailand and examines municipal waste management at the local level, with focus on the Tha Khon Yang sub-district surrounding Mahasarakham University in Mahasarakham Province. Within two decades this area has been converted from a rural to an urban landscape featuring accommodation for over 45,000 university students and a range of business facilities...
January 11, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28073930/editorial-3rs-tightly-intertwined-to-maintain-genome-stability
#3
EDITORIAL
Michael Lisby, Uffe H Mortensen
No abstract text is available yet for this article.
January 10, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28057168/evaluation-and-optimization-of-blood-micro-sampling-methods-serial-sampling-in-a-cross-over-design-from-an-individual-mouse
#4
Nita J Patel, Enaksha Wickremsinhe, Yu-Hua Hui, Alexandar Barr, Nicholas Masterson, Kenneth Ruterbories, Jennifer Weller, Jennifer Hanes, Tom Kern, Everett Perkins
PURPOSE: Current practices applied to mouse pharmacokinetic (PK) studies often use large numbers of animals with sporadic or composite sampling that inadequately describe PK profiles.  The purpose of this work was to evaluate and optimize blood microsampling techniques coupled with dried blood spot (DBS) and LC-MS/MS analysis to generate reliable PK data in mice.  In addition, the feasibility of cross-over designs was assessed and recommendations are presented. METHODS: The work describes a comprehensive evaluation of five blood microsampling techniques (tail clip, tail vein with needle hub, submandibular, retro-orbital, and saphenous bleeding) in CD-1 mice...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28053077/animal-research-the-3rs-and-the-internet-of-things-opportunities-and-oversight-in-international-pharmaceutical-development
#5
Steven M Niemi, Gail F Davies
Stages of drug (and vaccine) discovery and evaluation that involve laboratory animals increasingly occur via scientific collaborations across national borders and continents. Many of these research collaborations are between asset-rich institutions and others in less wealthy parts of the world. The care and use of laboratory animals in geographically disparate locations introduces new complexities, such as different oversight requirements and available resources, as well as diverse organizational and cultural milieus...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053076/opportunities-to-apply-the-3rs-in-safety-assessment-programs
#6
Fiona Sewell, Joanna Edwards, Helen Prior, Sally Robinson
Before a potential new medicine can be administered to humans it is essential that its safety is adequately assessed. Safety assessment in animals forms an integral part of this process, from early drug discovery and initial candidate selection to the program of recommended regulatory tests in animals. The 3Rs (replacement, reduction, and refinement of animals in research) are integrated in the current regulatory requirements and expectations and, in the EU, provide a legal and ethical framework for in vivo research to ensure the scientific objectives are met whilst minimizing animal use and maintaining high animal welfare standards...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053075/refinement-reduction-and-replacement-of-animal-toxicity-tests-by-computational-methods
#7
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/28053074/promoting-adoption-of-the-3rs-through-regulatory-qualification
#8
Elizabeth Gribble Walker, Amanda F Baker, John-Michael Sauer
One mechanism to advance the application of novel safety assessment methodologies in drug development, including in silico or in vitro approaches that reduce the use of animals in toxicology studies, is regulatory qualification. Regulatory qualification, a formal process defined at the the U. S. Food and Drug Administration and the European Medicines Agency, hinges on a central concept of stating an appropriate "context of use" for a novel drug development tool (DDT) that precisely defines how that DDT can be used to support decision making in a regulated drug development setting...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053073/in-vivo-imaging-in-pharmaceutical-development-and-its-impact-on-the-3rs
#9
Barry R Campbell, Dinko Gonzalez Trotter, Catherine D G Hines, Wenping Li, Manishkumar Patel, Weisheng Zhang, Jeffrey L Evelhoch
It is well understood that the biopharmaceutical industry must improve efficiency along the path from laboratory concept to commercial product. In vivo imaging is recognized as a useful method to provide biomarkers for target engagement, treatment response, safety, and mechanism of action. Imaging biomarkers have the potential to inform the selection of drugs that are more likely to be safe and effective. Most of the imaging modalities for biopharmaceutical research are translatable to the clinic. In vivo imaging does not require removal of tissue to provide biomarkers, thus reducing the number of valuable preclinical subjects required for a study...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053070/automated-microsampling-technologies-and-enhancements-in-the-3rs
#10
L David Hopper
Data collected in vivo is essential for advising decisions on drug screening and development and basic research, and animal models are used extensively for acquiring experimental measurements. Traditionally, collection of specimens has been invasive, stressful to animal subjects, labor intensive, time-consuming and costly, and required many animals when using small models with low fluid volumes, such as rats or mice. Utilizing automated microsampling (AMS) alone or in an integrative pharmacology approach to evaluate multiple physiological, pharmacokinetic, and pharmacodynamic endpoints simultaneously in the same animal accomplishes multiple experimental goals...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053069/balancing-blood-sample-volume-with-3rs-implementation-and-best-practices-for-small-molecule-toxicokinetic-assessments-in-rats
#11
Eric Harstad, Roxanne Andaya, Jessica Couch, Xiao Ding, Xiaorong Liang, Bianca M Liederer, Kirsten Messick, Trung Nguyen, Michelle Schweiger, Jacqueline Tarrant, Shelly Zhong, Brian Dean
Improved small molecule bioanalytical sensitivity and concomitant decreased sample volume requirements provide an opportunity to reconsider how toxicokinetic (TK) data are collected in rat toxicity studies. Often, satellite groups of rats are designated to separate procedural effects of TK blood collection from the primary toxicity evaluation. Blood microsampling (i.e., ≤50 μL) decreases the blood volume collected such that TK samples can be collected from toxicity groups without impacting toxicity assessment...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053068/alternative-models-of-developmental-and-reproductive-toxicity-in-pharmaceutical-risk-assessment-and-the-3rs
#12
Kimberly C Brannen, Robert E Chapin, Abigail C Jacobs, Maia L Green
In the pharmaceutical industry, preclinical developmental and reproductive toxicity studies are conducted in laboratory animals in order to predict and prevent adverse effects of drugs on human reproductive health and development. However, these studies require a relatively large number of animals and are usually conducted late in the drug development process. Early, simple, and inexpensive screening assays could facilitate smarter decisions, reductions in animal use, and development of safe drugs. The current state and future needs for alternative models of developmental and reproductive toxicity are reviewed here...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/28053065/data-standardization-pharmaceutical-drug-development-and-the-3rs
#13
Laura Kaufman, Katrina Gore, Joyce Chandler Zandee
Despite the efforts, cost, and extensive use of animals for nonclinical research, only a small number of studies have methodically compared findings from animal toxicology studies to those from human clinical trials. Impediments to understanding the translation of nonclinical safety have included the lack of easy access to data and the need for extensive data curation given the diverse terminologies, formats, and data platforms in use. SEND and SDTM study data standards, developed by CDISC and about to become mandated by FDA, can address this and other drug development issues by facilitating access to data in ways that are not currently feasible...
December 2016: ILAR Journal
https://www.readbyqxmd.com/read/27978817/evaluation-of-galleria-mellonella-larvae-for-studying-the-virulence-of-streptococcus-suis
#14
Nadya Velikova, Kevin Kavanagh, Jerry M Wells
BACKGROUND: Streptococcus suis is an encapsulated Gram-positive bacterium and the leading cause of sepsis and meningitis in young pigs, resulting in considerable economic losses in the porcine industry. S. suis is considered an emerging zoonotic agent with increasing numbers of human cases over the last years. In the environment, both avirulent and virulent strains occur in pigs, with no evidence for consistent adapatation of virulent strains to the human host. Currently, there is an urgent need for a convenient, reliable and standardised animal model to rapidly assess S...
December 15, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27935923/strategy-of-making-hand-washing-a-routine-habit-principles-of-5es-and-3rs
#15
N Kandel, J Lamichane
Regular hand washing habit has potential to reduce morbidity and mortality due to diseases and improves child development and reduces absenteeism of children, teachers and workforce. Improving hand washing behavior is more cost effective than improving clean water and sanitation infrastructure. There are numbers of initiatives and interventions in place, which have gained momentum with key messages of a call to action with increasing investment in schools, engaging policy makers and demonstration them with evidence...
July 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27932582/translational-safety-genetics-leveraging-genetic-variation-for-enhanced-safety-assessment
#16
Priyasma Bhoumik, Alberto Del Rio-Espinola, Florian Hahne, Jonathan Moggs, Olivier Grenet
The emerging field of translational safety genetics is providing new opportunities to enhance drug discovery and development. Genetic variation in therapeutic drug targets, off-target interactors and relevant drug metabolism/disposition pathways can contribute to diverse drug pharmacologic and toxicologic responses between different animal species, strains and geographic origins. Recent advances in the sequencing of rodent, canine, nonhuman primate, and minipig genomes have dramatically improved the ability to select the most appropriate animal species for preclinical drug toxicity studies based on genotypic characterization of drug targets/pathways and drug metabolism and/or disposition, thus avoiding inconclusive or misleading animal studies, consistent with the principles of the 3Rs (replacement, reduction and refinement)...
December 8, 2016: Toxicologic Pathology
https://www.readbyqxmd.com/read/27909191/analgesia-in-clinically-relevant-rodent-models-of-sepsis
#17
Victor Jeger, Till Hauffe, Flora Nicholls-Vuille, Dominique Bettex, Alain Rudiger
Postoperative analgesia in rodent sepsis models has been considerably neglected in the past. However, intentions to model clinical practice, increasing awareness of animal ethics, efforts to apply the 3Rs (replacement, reduction, refinement), and stricter legislation argue for a change in this respect. In this review, we describe different concepts of analgesia in rodent models of sepsis focusing on opioid agonists as well as non-opioid analgesics. Advantages and pitfalls in study design and side-effects are discussed...
December 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27889857/accurate-control-of-17%C3%AE-estradiol-long-term-release-increases-reliability-and-reproducibility-of-preclinical-animal-studies
#18
Céline Gérard, Anne Gallez, Charline Dubois, Pierre Drion, Philippe Delahaut, Etienne Quertemont, Agnès Noël, Christel Pequeux
Estrogens are the subject of intensive researches aiming to elucidate their mechanism of action on the various tissues they target and especially on mammary gland and breast cancer. The use of ready-to-use slow releasing devices to administer steroids, especially estrogens, to small experimental animals remains the method of choice in terms of animal well-being and of safety for both the researcher and the animal. In this study, we evaluated and compared, in vitro and in vivo, the release kinetic of estradiol (E2) over sixty days from two different slow-releasing systems: the matrix pellet (MP) and the reservoir implant (RI)...
November 26, 2016: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/27864887/ethical-use-of-animal-models-in-musculoskeletal-research
#19
Matthew J Allen Vet, Kurt D Hankenson, Laurie Goodrich, Gregory P Boivin, Brigitte von Rechenberg
The use of animals in research is under increasing scrutiny from the general public, funding agencies and regulatory authorities. Our ability to continue to perform in-vivo studies in laboratory animals will be critically determined by how researchers respond to this new reality. This Perspectives article summarizes recent and ongoing initiatives within ORS and allied organizations to ensure that musculoskeletal research is performed to the highest ethical standards. It goes on to present an overview of the practical application of the 3Rs (reduction, refinement and replacement) into experimental design and execution, and discusses recent guidance with regard to improvements in the way in which animal data are reported in publications...
November 19, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27858407/preclinical-imaging-anesthesia-in-rodents
#20
Giancarlo Vesce, Fabiana Micieli, Ludovica Chiavaccini
Despite the outstanding progress achieved by preclinical imaging science, laboratory animal anesthesia remains quite stationary. Ninety percent of preclinical imaging studies are carried on small rodents (mice and rats) anesthetized by outdated injectable and/or inhalation agents. A need for imaging awake (conscious) animals is questionably registered mainly for brain research, for phMRI and for accomplishing pain and analgesia studies. A need for improving current rodent anesthesia protocols and for enforcing the 3Rs paradigm is sought...
March 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
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