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https://www.readbyqxmd.com/read/28643340/trans-endoscopic-diode-laser-fenestration-of-equine-conchae-via-contralateral-nostril-approach
#1
Filip Kološ, Štěpán Bodeček, Zdeněk Žert
OBJECTIVE: To describe and report preliminary outcomes of a contralateral trans-nasal endoscopic laser fenestration of the conchae for endoscopic examination and treatment of paranasal sinuses in horses. STUDY DESIGN: Cadaveric experimental and prospective clinical study. ANIMALS: Normal cadaveric equine heads (n = 7) and equine patients (horses n = 7, donkey n = 1) diagnosed with sinusitis. METHODS: Ex vivo: a video-endoscope containing a diode laser fiber in the working canal was passed through the nostril and retroflexed in the nasopharynx toward the contralateral conchae...
June 23, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28642343/differential-distribution-of-vapa-positive-rhodococcus-equi-in-affected-and-unaffected-horse-breeding-farms
#2
S Petry, C Sévin, M A Fleury, F Duquesne, N Foucher, C Laugier, M Henry-Amar, J Tapprest
No abstract text is available yet for this article.
June 22, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28640600/horse-liver-alcohol-dehydrogenase-zinc-coordination-and-catalysis
#3
Bryce V Plapp, Baskar Raj Savarimuthu, Daniel J Ferraro, Jon K Rubach, Eric N Brown, Subramanian Ramaswamy
: During catalysis by liver alcohol dehydrogenase (ADH), a water bound to the catalytic zinc is replaced by the oxygen of the substrates. The mechanism may involve a pentacoordinated zinc or a double displacement reaction with participation by a nearby glutamate residue, as suggested by studies of human ADH3, yeast ADH1 and some other tetrameric ADHs. Zinc coordination and participation of water in the enzyme mechanism were investigated by X-ray crystallography. Apoenzyme and its complex with adenosine 5'-diphosphoribose have an open protein conformation with the catalytic zinc in one position, tetracoordinated by Cys-46, His-67, Cys-174 and a water molecule...
June 22, 2017: Biochemistry
https://www.readbyqxmd.com/read/28640590/chlorin-e6-functionalized-theranostic-multistage-nanovectors-transported-by-stem-cells-for-effective-photodynamic-therapy
#4
Simo Näkki, Jonathan Martinez, Michael Evangelopoulos, Wujun Xu, Vesa-Pekka Lehto, Ennio Tasciotti
Approaches to achieve site-specific and targeted delivery that provide an effective solution to reduce negative, off target side-effects are urgently needed for cancer therapy. Here, we utilized a Trojan horse-like strategy to carry photosensitizer Chlorin e6 conjugated porous silicon multistage nanovectors with tumor homing mesenchymal stem cells for targeted photodynamic therapy and diagnosis. The inherent versatility of multistage nanovectors permitted the conjugation of photosensitizers to enable precise cell death induction (60%) upon photodynamic therapy, while simultaneously retaining the loading capacity to load various payloads, such as antitumor drugs and diagnostic nanoparticles...
June 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28638626/effects-of-liposomal-curcumin-on-five-opportunistic-bacterial-strains-found-in-the-equine-hindgut-preliminary-study
#5
S D Bland, E B Venable, J L McPherson, R L Atkinson
BACKGROUND: The horse intestinal tract is sensitive and contains a highly complex microbial population. A shift in the microbial population can lead to various issues such as inflammation and colic. The use of nutraceuticals in the equine industry is on the rise and curcumin is thought to possess antimicrobial properties that may help to minimize the proliferation of opportunistic bacteria. METHODS: Four cecally-cannulated horses were utilized to determine the optimal dose of liposomal-curcumin (LIPC) on reducing Streptococcus bovis/equinus complex (SBEC), Escherichia coli K-12, Escherichia coli general, Clostridium difficile, and Clostridium perfringens in the equine hindgut without adversely affecting cecal characteristics...
2017: Journal of Animal Science and Technology
https://www.readbyqxmd.com/read/28637457/descriptive-and-network-analyses-of-the-equine-contact-network-at-an-equestrian-show-in-ontario-canada-and-implications-for-disease-spread
#6
Kelsey L Spence, Terri L O'Sullivan, Zvonimir Poljak, Amy L Greer
BACKGROUND: Identifying the contact structure within a population of horses attending a competition is an important element towards understanding the potential for the spread of equine pathogens as the horses subsequently travel from location to location. However, there is limited information in Ontario, Canada to quantify contact patterns of horses. The objective of this study was to describe the network of potential contacts associated with an equestrian show to determine how this network structure may influence potential disease transmission...
June 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28636633/playing-with-fire-what-is-influencing-horse-owners-decisions-to-not-vaccinate-their-horses-against-deadly-hendra-virus-infection
#7
Kailiea Arianna Goyen, John David Wright, Alexandra Cunneen, Joerg Henning
Hendra virus is a zoonotic paramyxovirus, which causes severe respiratory and neurological disease in horses and humans. Since 2012, the Hendra virus sub-unit G vaccine has been available for horse vaccination in Australia. Uptake of the vaccine has been limited and spill-over events of Hendra virus infection in horses continue to occur. We conducted an online, questionnaire-based cross-sectional study of 376 horse owners belonging to a variety of different equestrian clubs in Queensland, Australia, to identify risk factors for non-vaccination against Hendra virus...
2017: PloS One
https://www.readbyqxmd.com/read/28635592/type-specific-l1-virus-like-particle-mediated-protection-of-horses-from-experimental-bovine-papillomavirus-1-induced-pseudo-sarcoid-formation-is-long-lasting
#8
Julia Harnacker, Edmund K Hainisch, Saeed Shafti-Keramat, Reinhard Kirnbauer, Sabine Brandt
Equine sarcoids are common therapy-resistant skin tumours induced by bovine papillomavirus type 1 or 2 (BPV1, BPV2) infection. We have previously shown that prophylactic vaccination with BPV1 L1 virus-like particles (VLPs) efficiently protects horses from experimental BPV1-induced pseudo-sarcoid development. Here, we assessed BPV1 L1 VLP vaccine-mediated long-term protection from experimental tumour formation in seven horses 5 years after immunization with three different doses of BPV1 L1 VLPs, and three unvaccinated control animals...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28634359/infections-of-horses-and-shrews-with-bornaviruses-in-upper-austria-a-novel-endemic-area-of-borna-disease
#9
Herbert Weissenböck, Zoltán Bagó, Jolanta Kolodziejek, Barbara Hager, Günter Palmetzhofer, Ralf Dürrwald, Norbert Nowotny
Borna disease, a lethal infection with Borna disease virus-1 (BoDV-1), was diagnosed in four horses from Upper Austria in 2015 and 2016. All cases occurred in winter (two cases in February 2015 and two cases in December 2016), and the maximal distance of the affected stables was 17 km. To demonstrate whether the causative agent was also harbored by its reservoir host, the bicolored white-toothed shrew (Crocidura leucodon), 28 shrews from this geographic area were collected in 2015 and investigated for the presence of BoDV-1...
June 21, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28633975/efficacy-of-inactivation-of-viral-contaminants-in-hyperimmune-horse-plasma-against-botulinum-toxin-by-low-ph-alone-and-combined-with-pepsin-digestion
#10
Amram Torgeman, Nurit Mador, Marina Dorozko, Aliza Lifshitz, Naomi Eschar, Moshe D White, Dana G Wolf, Eyal Epstein
Assuring viral safety of horse plasma-derived products is fundamental for ethical and regulatory reasons. We previously demonstrated the ability of pepsin digestion at low pH to inactivate West Nile and Sindbis viruses in horse plasma. The present study further examined the efficiency of pepsin digestion to inactivate four additional viruses: HSV-1 and BVDV (lipid-enveloped), BPV and Reo-3 (nonenveloped). These viruses were spiked into hyperimmunized horse plasma against botulinum toxin and subjected to low pH (3...
June 17, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28633685/cross-validation-analysis-for-genetic-evaluation-models-for-ranking-in-endurance-horses
#11
S García-Ballesteros, L Varona, M Valera, J P Gutiérrez, I Cervantes
Ranking trait was used as a selection criterion for competition horses to estimate racing performance. In the literature the most common approaches to estimate breeding values are the linear or threshold statistical models. However, recent studies have shown that a Thurstonian approach was able to fix the race effect (competitive level of the horses that participate in the same race), thus suggesting a better prediction accuracy of breeding values for ranking trait. The aim of this study was to compare the predictability of linear, threshold and Thurstonian approaches for genetic evaluation of ranking in endurance horses...
June 21, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28632684/if-wishes-were-horses-beggars-would-ride
#12
Desire N Onwochei, Simeon West, Amit Pawa
No abstract text is available yet for this article.
July 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28631601/viral-genes-and-cellular-markers-associated-with-neurological-complications-during-herpesvirus-infections
#13
Carine L Holz, Rahul K Nelli, M Eilidh Wilson, Lila M Zarski, Walid Azab, Rachel Baumgardner, Nikolaus Osterrieder, Anthony Pease, Liangliang Zhang, Sarah Hession, Lutz S Goehring, Stephen B Hussey, Gisela Soboll Hussey
Despite the importance of neurological disorders associated with herpesviruses, the mechanism by which these viruses influence the central nervous system (CNS) has not been definitively established. Owing to the limitations of studying neuropathogenicity of human herpesviruses in their natural host, many aspects of their pathogenicity and immune response are studied in animal models. Here, we present an important model system that enables studying neuropathogenicity of herpesviruses in the natural host. Equine herpesvirus type 1 (EHV-1) is an alphaherpesvirus that causes a devastating neurological disease (EHV-1 myeloencephalopathy; EHM) in horses...
June 20, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28631539/regional-nerve-blocks-for-equine-dentistry
#14
Molly K Rice
Regional nerve blocks are necessary to facilitate equine oral surgery in the standing sedated patient. Step-by-step instruction on how to perform common regional nerve blocks are discussed, including infraorbital, maxillary, middle mental, and inferior alveolar nerve blocks. Regional nerve blocks are critical when performing dental procedures in the standing horse.(1) The infraorbital and maxillary nerve blocks provide anesthesia of the infraorbital nerve, which is a branch of the maxillary nerve. Both nerve blocks provide adequate anesthesia for all maxillary dental procedures...
June 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28629406/geospatial-and-temporal-associations-of-getah-virus-circulation-among-pigs-and-horses-around-the-perimeter-of-outbreaks-in-japanese-racehorses-in-2014-and-2015
#15
Hiroshi Bannai, Manabu Nemoto, Hidekazu Niwa, Satoshi Murakami, Koji Tsujimura, Takashi Yamanaka, Takashi Kondo
BACKGROUND: We studied a recent epizootic of Getah virus infection among pigs in the southern part of Ibaraki Prefecture and the northern part of Chiba Prefecture, Japan, focusing on its possible association with outbreaks in racehorses in 2014 and 2015. The genomic sequence of a Getah virus strain from an infected pig was analyzed to evaluate the degree of identity with the strains from horses. RESULTS: Sera were collected from pigs from September to December 2012 to 2015 in south Ibaraki (380 pigs in 29 batches), and from September to December 2010 to 2015 in north Chiba (538 pigs in 104 batches)...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28629364/changes-in-concentrations-of-haemostatic-and-inflammatory-biomarkers-in-synovial-fluid-after-intra-articular-injection-of-lipopolysaccharide-in-horses
#16
Stine Mandrup Andreassen, Anne Mette Lindberg Vinther, Søren Saxmose Nielsen, Pia Haubro Andersen, Aziz Tnibar, Annemarie T Kristensen, Stine Jacobsen
BACKGROUND: Septic arthritis is a common and potentially devastating disease characterized by severe intra-articular (IA) inflammation and fibrin deposition. Research into equine joint pathologies has focused on inflammation, but recent research in humans suggests that both haemostatic and inflammatory pathways are activated in the joint compartment in arthritic conditions. The aim of this study was to characterize the IA haemostatic and inflammatory responses in horses with experimental lipopolysaccharide (LPS)-induced joint inflammation...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28629059/versatile-quarto-stimuli-nanostructure-based-on-trojan-horse-approach-for-cancer-therapy-synthesis-characterization-in-vitro-and-in-vivo-studies
#17
Eleni K Efthimiadou, Eirini Fragogeorgi, Lazaros Palamaris, Theodoros Karampelas, Pavlos Lelovas, George Loudos, Constantin Tamvakopoulos, Nikolaos Kostomitsopoulos, George Kordas
Nanostructured delivery and diagnostic systems that induces specific targeting properties by exploiting the local physicochemical tumour characteristics will be evaluated is the present work. It is well known that cancer cells have specific physicochemical characteristics, which can be taken into consideration for the design of a broad spectrum of drug delivery systems (DDS). Some of those characteristics including the different temperature environment their susceptibility when temperature ranges between 40 and 43°C where cell apoptosis is induced, the intra- and extra-cellular pH which varies from 6...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628400/west-nile-virus-seroprevalence-in-animals-in-palestine-and-israel
#18
Kifaya Azmi, Sharon Tirosh-Levy, Mu'taz Manasrah, Rotem Mizrahi, Abed Nasereddin, Amer Al-Jawabreh, Suheir Ereqat, Ziad Abdeen, Yaniv Lustig, Boris Gelman, Gili Schvartz, Amir Steinman
West Nile virus (WNV) epidemiological situation in Israel and Palestine, due to their unique location, draws attention following to the global spread of West Nile fever (WNF). Although much information is available from Israel on clinical cases and prevalence of WNV, clinical cases are rarely reported in Palestine, and prevalence is not known. The objectives of this study were to determine WNV seroprevalence in various domestic animals in Palestine and to reevaluate current seroprevalence, force of infection, and risk factors for WNV exposure in horses in Israel...
June 19, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28627102/quantitation-of-%C3%AE-aminobutyric-acid-in-equine-plasma-by-hydrophilic-interaction-liquid-chromatography-with-tandem-mass-spectrometry
#19
Rong Yi, Sarah Zhao, Noel Kong, Julia Zhang, Devan Loganathan, Sandrine Mérette, Barbara Morrissey
γ-Aminobutyric acid is the principal inhibitory neurotransmitter in the central nervous system and regulates the neuronal excitability. There has been anecdotal evidence that γ-aminobutyric acid has been used within a few hours prior to competition in equine sports to calm down nervous horses. However, regulating the use of γ-aminobutyric acid is challenging because it is an endogenous substance in the horse. γ-Aminobutyric acid is usually present at low ng/mL levels in equine plasma; therefore, a sensitive method has to be developed to quantify these low background levels...
June 19, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28627065/evaluation-of-an-in%C3%A2-vitro-system-to-simulate-equine-foregut-digestion-and-the-influence-of-acidity-on-protein-and-fructan-degradation-in-the-horse-s-stomach
#20
S Strauch, B Wichert, J M Greef, D Hillegeist, A Zeyner, A Liesegang
The aim of this study was to improve an in vitro system in order to gather optimized information on the digestion of different forages in the horse's upper gastrointestinal tract. Therefore, foregut digestion of several forages was simulated in vitro (Part 1). The effect of different pH values on in vitro fructan degradation of two selected grasses (Part 2) was tested subsequently. Part 1: We hypothesized that our system produces representative results simulating digestive processes in the upper alimentary tract, but neglects microbial fermentation...
June 2017: Journal of Animal Physiology and Animal Nutrition
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