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Laboratory Animals

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https://www.readbyqxmd.com/read/30089440/humanizing-the-gut-microbiota-of-mice-opportunities-and-challenges
#1
Randi Lundberg
Mouse colonized with human fecal microbiota is an interesting model concept with pros and cons like any other model system. The concept provides an ecologically relevant context to study food component and drug metabolism, and is an invaluable tool for phenotype transfer studies to prove the role of the gut microbiota in health and disease. The major drawbacks are the difficulties with transferring certain components of the human microbiota to the recipient mice, and immunological abnormalities observed in these mice...
August 8, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30089439/impact-assessment-of-tail-vein-injection-in-mice-using-a-modified-anaesthesia-induction-chamber-versus-a-common-restrainer-without-anaesthesia
#2
Marlene Resch, Tania Neels, Alexander Tichy, Rupert Palme, Thomas Rülicke
Intravenous (IV) administration in mice is predominantly performed via the lateral tail veins. The technique requires adequate training before it can be used safely and routinely. A novel anaesthesia induction chamber has been developed to simplify the treatment and to facilitate IV injection in mice, particularly for untrained personnel. We have assessed the benefits of the chamber in refining IV injection in isoflurane-anaesthetized mice in direct comparison with the common restrainer method on conscious animals...
August 8, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30089438/guidelines-for-porcine-models-of-human-bacterial-infections
#3
Louise K Jensen, Nicole L Henriksen, Henrik E Jensen
During the last 10 years the number of porcine models for human bacterial infectious diseases has increased. In the future, this tendency is expected to continue and, therefore, the aim of the present review is to describe guidelines for the development and reporting of these models. The guidelines are based on a review of 122 publications of porcine models for different bacterial infectious diseases in humans. The review demonstrates a substantial lack of information in most papers which hampers reproducibility and continuation of the work that was established in the models...
August 8, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30081741/4d-cardiac-magnetic-resonance-imaging-4d-and-2d-transthoracic-echocardiography-a-comparison-of-in-vivo-assessment-of-ventricular-function-in-rats
#4
Hedwig Stegmann, Tobias Bäuerle, Katharina Kienle, Sven Dittrich, Muhannad Alkassar
Preclinical cardiovascular research is the foundation of our understanding and broad knowledge of heart function and cardiovascular disease. Reliable cardiac imaging modalities are the basis for applicable results. Four-dimensional cardiac magnetic resonance (4D CMR) has been set as the gold standard for in-vivo assessment of ventricular function in rodents. However, technical improvements in echocardiography now allow us to image the whole heart, which makes four-dimensional echocardiography (4DE) a possible alternative to 4D CMR...
August 6, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30071770/dr-harry-blom
#5
Vera Baumans, Pim Rooymans, Jan-Bas Prins
No abstract text is available yet for this article.
August 2, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30049253/a-rat-model-of-nerve-stimulator-guided-brachial-plexus-blockade
#6
Yanzi Zhang, Bo Cui, Chunyu Gong, Yidan Tang, Jianxiong Zhou, Yi He, Jin Liu, Jing Yang
It is important to develop a feasible animal model of regional anesthesia other than sciatic nerve blockade for pharmacokinetic investigations of new local anesthetics or analgesia in upper extremity surgery. Herein, we explored a nerve stimulator (NS)-guided brachial plexus block (BPB) in a rat model. The anatomy of the brachial plexus in rats was delineated in cadavers, and various BPBs were examined. The puncture point was located 0.5-1.0 cm below the lateral one-third of the clavicle. The efficacy and safety of the NS-guided BPB were evaluated using an injection of 2% lidocaine or 0...
July 26, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30045671/the-effects-of-sucrose-on-urine-collection-in-metabolic-cages
#7
Alexandra Kovalčíková, Marianna Gyurászová, Roman Gardlík, Martin Boriš, Peter Celec, Ľubomíra Tóthová
Representative urine collection that respects the standards of animal welfare is still an issue in experimental nephrology. The commonly used metabolic cages induce stress in rodents. In mice, the volume of collected urine is sometimes insufficient for further analysis. The aim of this experiment was to analyse the effects of time of day, temperature and 2%, 5% or 10% sucrose solutions on diuresis, weight change and liquid intake of adult mice placed in metabolic cages for urine collection. Mice were placed in metabolic cages for 12 h during the day or night at standard ambient (22℃) and thermoneutral (28℃) temperatures...
July 25, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30041570/felasa-accreditation-of-education-and-training-courses-in-laboratory-animal-science-according-to-the-directive-2010-63-eu
#8
Marcel Gyger, Manuel Berdoy, Ismene Dontas, Martine Kolf-Clauw, Ana Isabel Santos, Mats Sjöquist
This document describes how the Federation of European Laboratory Animal Science Associations (FELASA) accreditation addresses both the Directive 2010/63/EU and the related European Commission guidance document. The four EU Functions and beyond: FELASA accredits courses that fulfil the requirements of Functions A, B, C and D as defined by EU Directive, Article 23, as well as for designated veterinarians and specialists in laboratory animal science. Modularity and mobility: Cohesive courses for Functions and for very specific topics are accredited, but flexibility and mobility are possible: a researcher can start his/her training with one FELASA accredited course and complete other modules with another...
July 24, 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30056801/workshop-sobre-clasificaci%C3%A3-n-de-severidad-en-madrid
#9
Elena Hevia
No abstract text is available yet for this article.
August 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30056800/achievements-of-felasa-over-the-past-40-years
#10
(no author information available yet)
No abstract text is available yet for this article.
August 2018: Laboratory Animals
https://www.readbyqxmd.com/read/30056799/eclam-eslav-pre-conference-workshop-publishing-your-science-toolkit-and-guidelines
#11
(no author information available yet)
No abstract text is available yet for this article.
August 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29779469/professor-jean-ren%C3%A3-maisin
#12
Patri Vergara, Ouajdi Souilem, Cynthia Pekow, Guy De Vroey
No abstract text is available yet for this article.
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29779468/the-next-popular-felasa-congress-10-13-june-2019-prague
#13
(no author information available yet)
No abstract text is available yet for this article.
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29385897/revised-taxonomy-and-nomenclature-of-rodent-pasteurellaceae-implications-for-monitoring
#14
R Boot, W Nicklas, H Christensen
Pasteurellosis is a well-recognized disease with similar pathology in all laboratory rodent species. Pasteurella pneumotropica is the most frequently mentioned member of the Pasteurellaceae isolated from mice and rats. Numerous other Pasteurellaceae taxa have been obtained from mice, rats, and other rodent species. Recently, rodent Pasteurellaceae have been submitted to comprehensive genetic and phenotypic (polyphasic) taxonomic studies. As a result they are now classed within six validly published new genera, namely Cricetibacter, Mesocricetibacter, Mannheimia, Muribacter, Necropsobacter, and Rodentibacter...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29192559/a-refined-and-translationally-relevant-model-of-chronic-dss-colitis-in-balb-c-mice
#15
Maximilian Hoffmann, Ulla Schwertassek, Aleksandra Seydel, Klaus Weber, Werner Falk, Sunna Hauschildt, Jörg Lehmann
Inflammatory bowel diseases (IBD) are chronic relapsing disorders of the gastrointestinal tract. Several mouse models for IBD are available, but the acute dextran sulfate sodium (DSS)-induced colitis model is mostly used for preclinical studies. However, this model lacks chronicity and often leads to significant loss of mice. The aim of this study was to establish a refined and translationally relevant model of DSS chronic colitis in BALB/c mice. In the first part, we compared several standard therapeutic (ST) treatments for IBD in the acute DSS colitis model to identify the optimal treatment control for a DSS colitis model as compared to literature data...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29169292/use-of-a-translucent-refuge-for-xenopus-tropicalis-with-the-aim-of-improving-welfare
#16
Gavan M Cooke
Xenopus tropicalis is an increasingly important animal model in a variety of biological research fields. In many countries legislation exists to promote and increase welfare wherever possible, including the ability to view animals during daily husbandry with minimal stress to the animal. X. tropicalis ( n = 16) refuge use was investigated; it was found that the animals significantly preferred black opaque overhead cover to open-ended pipes or closed-off ceramic plants pots in refuge choice experiments. This experiment was repeated by replacing the opaque black overhead cover with red filters...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29165033/a-comparison-of-various-methods-of-blood-sampling-in-mice-and-rats-effects-on-animal-welfare
#17
V S Harikrishnan, Axel K Hansen, Klas Sp Abelson, Dorte B Sørensen
This study was conducted to investigate the effects of blood sampling on animal welfare in a total of 60 NTac:SD rats and 72 C57BL/6NTac mice of both sexes. Blood was sampled either by sublingual vein puncture, tail vein puncture or by retrobulbar plexus/sinus puncture under light isoflurane anaesthesia and, additionally, by facial vein puncture in mice. Non-punctured animals as well as isoflurane-anaesthetised animals were used as controls. Pre- and post-puncture sucrose intake (1.5% w/w) was measured in rats, and nest building scores were studied in mice for 24 h post-puncture...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29145766/environmental-samples-make-soiled-bedding-sentinels-dispensable-for-hygienic-monitoring-of-ivc-reared-mouse-colonies
#18
Manuel Miller, Markus Brielmeier
Accurate knowledge of the health status of experimental animals is pivotal to high scientific and ethical standards in biomedical research. Individually ventilated cages (IVCs) are becoming the predominant system for housing laboratory mice, as they prevent cage-to-cage infections. However, this feature constitutes a major drawback for hygienic monitoring of mouse colonies, as traditional screening programs build on reliable transmission of infectious agents from experimental animals to sentinel mice commonly tested as representatives for the mouse colonies...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29132231/the-use-of-desflurane-for-neurosurgical-procedures-in-rhesus-macaque-macaca-mulatta
#19
Henri Gmj Bertrand, Charlotte Sandersen, Paul A Flecknell
Volatile agents are widely used to anaesthetise laboratory non-human primates as they allow a rapid induction and recovery as well as an easy adjustment of the anaesthesia plan. Desflurane is currently the volatile agent with the lowest solubility in blood, and hence enables the most rapid onset of anaesthesia and most rapid recovery. This study aimed to investigate the suitability of desflurane for maintenance of general anaesthesia in rhesus macaques undergoing elective experimental neurosurgery. Fourteen primates (five males and nine females) were sedated with ketamine (10 mg kg-1 ) and anaesthesia was induced with propofol (usually 8 mg kg-1 IV)...
June 2018: Laboratory Animals
https://www.readbyqxmd.com/read/29126360/endodontic-treatment-of-canine-teeth-in-a-cynomolgus-monkey-macaca-fascicularis
#20
Caterina Facchini, Ilaria Iacopetti, Eugenio Gaudio, Alessandro Zotti, Massimo Boldrin, Fabio Fante, Franco Mutinelli, Emanuele Cozzi, Giulia Maria De Benedictis
A case of bilateral superior canine tooth pulp necrosis in an 18-year-old male Macaca fascicularis is described . A skull computed tomography scan was performed to confirm the diagnostic suspicion. A successful bilateral endodontic treatment with coronotomy was performed using rotary nickel-titanium instruments. Post-operative dental radiographs confirmed the correct positioning of the sealant. A rapid and excellent clinical recovery was obtained after each surgery. This innovative approach may contribute to improving the quality of root canal treatments provided to non-human primates...
June 2018: Laboratory Animals
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