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Equine Testing

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https://www.readbyqxmd.com/read/28530164/biocompatibility-of-intensified-decellularized-equine-carotid-arteries-in-a-rat-subcutaneous-implantation-model-and-in-a-human-in-vitro-model
#1
Niklas Jeinsen, Lavinia Maegel, Danny Jonigk, Melanie Klingenberg, Axel Haverich, Mathias Wilhelmi, Ulrike Böer
Limited biocompatibility of decellularized scaffolds is an ongoing challenge in tissue engineering. We recently demonstrated that intensified detergent-based decellularization of equine carotid artery (dEACintens) removed residual cellular molecules from the scaffold more efficiently than a conventional decellularization (dEACcon) though this approach did not eliminate its immunogenicity entirely. CCN1 has been shown to improve biocompatibility of dEACcon in a sheep model. Here, we tested the biocompatibility of dEACintens and dEACcon with or without CCN1-coating after subcutaneous implantation in rats for up to 12 weeks...
May 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28528176/production-and-preclinical-assessment-of-camelid-immunoglobulins-against-echis-sochureki-venom-from-desert-of-rajasthan-india
#2
P D Tanwar, S K Ghorui, S K Kochar, Raghvendar Singh, N V Patil
Snakebite is a significant cause of death and disability in subsistent farming populations of rural India. Antivenom is the most effective treatment of envenoming and is manufactured from IgG of venom-immunised horses. Because of complex fiscal reasons, the production, testing and delivery of antivenoms designed to treat envenoming by the most medically-important snakes in the region has been questioned time to time. In this study, we report successful immunisation of dromedaries (Camelus dromedarius) against the venom of Indian saw-scaled Viper- Echis carinatus sochureki...
May 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28520166/operator-based-variability-of-equine-thromboelastography
#3
Kristen Thane, Daniela Bedenice, Ana Pacheco
OBJECTIVE: To determine the extent of intraoperator (between duplicate samples) and interoperator (between different operators) variability in equine thromboelastography (TEG). DESIGN: Kaolin-activated TEG was performed in duplicate by operator-pair A/B or A/C (2 groups of 10 horses) using discrete setups, within 30-45 minutes of vacuum-assisted blood collection. Recorded TEG variables included clot initiation time (R), clot formation time (K), rate of clot formation (α), clot strength (MA), and viscoelastic/shear strength (G)...
May 18, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28511269/the-role-of-birds-in-arboviral-disease-surveillance-in-harris-county-and-the-city-of-houston-texas
#4
Lauren Wilkerson, Martin Reyna Nava, Cheryl Battle-Freeman, Amelia Travassos da Rosa, Hilda Guzman, Robert Tesh, Mustapha Debboun
Avian arboviral surveillance is an integral part of any disease-based integrated mosquito control program. The Harris County Public Health Mosquito and Vector Control Division has performed arboviral surveillance in the wild birds of Harris County and the City of Houston since 1965. Blood samples from live trapped birds were tested for arboviral antibodies to West Nile virus (WNV), St. Louis encephalitis, Eastern equine encephalitis, and Western equine encephalitis. A dead bird surveillance program was created in 2002 with the arrival of WNV in Harris County...
January 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28503813/molecular-characterization-of-equine-infectious-anaemia-virus-from-a-major-outbreak-in-southeastern-france
#5
D Gaudaire, F Lecouturier, N Ponçon, E Morilland, C Laugier, S Zientara, A Hans
In 2009, a major outbreak of equine infectious anaemia (EIA) was reported in the south-east of France. This outbreak affected three premises located in the Var region where the index case, a 10-year-old mare that exhibited clinical signs consistent with EIA, occurred at a riding school. Overall, more than 250 horses were tested for EIAV (equine infectious anaemia virus) antibodies, using agar gel immunodiffusion test, and 16 horses were positive in three different holdings. Epidemiological survey confirmed that the three premises were related through the purchase/sale of horses and the use of shared or nearby pastures...
May 15, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28500993/nonsynonymous-changes-of-equine-lentivirus-receptor-1-elr1-gene-in-amino-acids-involved-in-the-interaction-with-equine-infectious-anemia-virus-eiav
#6
C M Corbi-Botto, S A Sadaba, M E Zappa, P Peral-García, S Díaz
Equine lentivirus receptor-1 (ELR1) has been characterized as the specific functional receptor that mediates equine infectious anemia virus (EIAV) entrance to horse macrophages. This receptor is tumor necrosis factor receptor superfamily member 14 (TNFRSF14). The aim of this study was to investigate the occurrence of allelic variants in the coding sequence of equine TNFRSF14 gene by screening for single-nucleotide polymorphisms (SNPs) in different equine populations. Forty seven horse samples were randomly selected from a reservoir of EIAV-seropositive and seronegative samples collected from different outbreaks and regions of Argentina...
May 2, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28498552/ex-vivo-biomechanical-stability-of-5-cricoid-suture-constructs-for-equine-laryngoplasty
#7
Olivier Brandenberger, Fabrice Rossignol, Justin D Perkins, Antoine Lechartier, Céline Mespoulhès-Rivière, Amelie Vitte, Anthony Rossignol, Norm Ducharme, Karl Joseph Boening
OBJECTIVE: To determine the biomechanical properties of 5 suture constructs in the equine cricoid under cyclic loading and load to failure testing. STUDY DESIGN: Ex vivo study. SAMPLES: Seventy-five equine cadaver larynges. METHODS: Each larynx was implanted with 1 of 5 cricoid-suture constructs. The standard laryngoplasty, where a suture is passed once through the cricoid, including its caudal edge, was used in 2 constructs: 1 with 5 USP Ethibond (ES) and 1 with 2 mm Fibertape (FS)...
May 12, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28497743/seroprevalence-of-theileria-equi-and-babesia-caballi-in-horses-in-spain
#8
Maria Guadalupe Montes Cortés, José Luis Fernández-García, Miguel Ángel Habela Martínez-Estéllez
Equine piroplasmoses are enzootic parasitic diseases distributed worldwide with high incidence in tropical and subtropical regions. In Spain, there is insufficient epidemiological data about equine piroplasmoses. The main aim of the present study was therefore to estimate the prevalence of Theileria equi and Babesia caballi in five regions and obtain information about the risk factors. This study was conducted in the central and south-western regions of Spain, using indirect fluorescence antibody testing (IFAT) in 3,100 sera samples from apparently healthy horses of different ages, breeds, coat colours, genders and geographical locations...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28494929/investigation-of-corneal-autoantibodies-in-horses-with-immune-mediated-keratitis-immk
#9
B K Braus, I Miller, S Kummer, K J H Kleinwort, S Hirmer, S M Hauck, R J McMullen, M Kerschbaumer, C A Deeg
Immune mediated keratitis (IMMK) is primarily a non-ulcerative keratitis in horses causing intermittent ocular pain, eventually resulting in visual impairment. Affected horses typically respond to immunomodulatory treatment. However, the underlying cause of the disease remains enigmatic. The current study was undertaken to investigate the presence of autoantibodies in horses with immune mediated keratitis. Using 28 horses with IMMK and 27 healthy controls screening for serum autoantibodies against the corneal proteome using indirect immunofluorescence, one-dimensional (1DE) and two-dimensional electrophoresis (2DE) with subsequent western blot analysis was performed followed by mass spectrometric identification of bands or spots of interest...
May 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28490374/a-serosurvey-of-selected-cystogenic-coccidia-in-spanish-equids-first-detection-of-anti-besnoitia-spp-specific-antibodies-in-europe
#10
Daniel Gutiérrez-Expósito, Ignacio García-Bocanegra, Daniel K Howe, Antonio Arenas-Montes, Michelle R Yeargan, SallyAnne L Ness, Luis M Ortega-Mora, G Álvarez-García
BACKGROUND: Equine besnoitiosis, caused by Besnoitia bennetti, and equine protozoal myeloencephalitis (EPM), caused by Sarcocystis neurona and Neospora hughesi are relevant equine diseases in the Americas that have been scarcely studied in Europe. Thus, a serosurvey of these cystogenic coccidia was carried out in Southern Spain. A cross-sectional study was performed and serum samples from horses (n = 553), donkeys (n = 85) and mules (n = 83) were included. An in-house enzyme-linked immunosorbent assay (ELISA) was employed to identify a Besnoitia spp...
May 10, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28470955/phenotypic-characterisation-of-cell-populations-in-the-brains-of-horses-experimentally-infected-with-west-nile-virus
#11
G H Delcambre, J Liu, W J Streit, G P J Shaw, K Vallario, J Herrington, N Wenzlow, K L Barr, M T Long
BACKGROUND: West Nile Virus (WNV), a mosquito borne member of the Flaviviridae, is one of the most commonly diagnosed agents of viral encephalitis in horses and people worldwide. OBJECTIVE: A cassette of markers for formalin-fixed paraffin-embedded (FFPE) tissue and an archive of tissues from experimental infections in the horse were used to investigate the equine neuroimmune response to WNV meningoencephalomyelitis to phenotype the early response to WNV infection in the horse...
May 4, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28460747/equine-infectious-anemia-prevalence-in-feral-donkeys-from-northeast-brazil
#12
Fernanda G Oliveira, R Frank Cook, João H F Naves, Cairo H S Oliveira, Rejane S Diniz, Francisco J C Freitas, Joseney M Lima, Sidnei M Sakamoto, Rômulo C Leite, Charles J Issel, Jenner K P Reis
Equine infectious anemia virus (EIAV) is an important cause of morbidity and mortality throughout the world. Although the virus infects all members of the Equidae the vast majority of studies have been conducted in horses (Equus caballus) with comparatively little information available for other equid species. Brazil has one of the most abundant donkey (E. asinus) populations of any nation although the economic importance of these animals is declining as transportation becomes increasingly mechanized. As a result, considerable numbers of donkeys especially in the Northeast of the country have been released and allowed pursue an almost feral existence...
May 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28458275/rapid-diagnosis-of-equine-influenza-by-highly-sensitive-silver-amplification-immunochromatography-system
#13
Takashi Yamanaka, Manabu Nemoto, Hiroshi Bannai, Koji Tsujimura, Takashi Kondo, Tomio Matsumura, Tao Qi Huang Fu, Charlene Judith Fernandez, Sarah Gildea, Ann Cullinane
Equine influenza (EI) is a respiratory disease caused by equine influenza A virus (EIV, H3N8) infection. Rapid diagnosis is essential to limit the disease spread. We previously reported that some rapid antigen detection (RAD) tests are fit for diagnosing EI although their sensitivity is not optimal. Here, we evaluated the performance of the newly developed RAD test using silver amplification immunochromatography (Quick Chaser Auto Flu A, B: QCA) to diagnose EI. The detection limits of QCA for EIVs were five-fold lower than the conventional RAD tests...
May 1, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28456676/early-intervention-in-cauda-equina-syndrome-associated-with-better-outcomes-a-myth-or-reality-insights-from-the-nationwide-inpatient-sample-database-2005-2011
#14
Jai Deep Thakur, Christopher Storey, Piyush Kalakoti, Osama Ahmed, Rimal H Dossani, Richard P Menger, Kanika Sharma, Hai Sun, Anil Nanda
BACKGROUND CONTEXT: Evidence-based consensus on timing to surgical decompression following symptom onset in patients with cauda equine syndrome (CES) is limited or widely debated. PURPOSE: To investigate timing to intervention in management of patients with CES impacts outcomes. STUDY DESIGN/SETTING: Retrospective cohort study. PATIENT SAMPLE: 4,066 adult patients with CES registered in the Nationwide Inpatient Sample (NIS) database (2005-2011) and undergoing elective decompression surgery...
April 26, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28455133/development-and-application-of-a-quantitative-pcr-assay-to-study-equine-herpesvirus-5-invasion-and-replication-in-equine-tissues-in-vitro-and-in-vivo
#15
Lila M Zarski, Emily A High, Rahul K Nelli, Steven R Bolin, Kurt J Williams, Gisela Soboll Hussey
Equine herpesvirus 5 (EHV-5) infection is associated with pulmonary fibrosis in horses, but further studies on EHV-5 persistence in equine cells are needed to fully understand viral and host contributions to disease pathogenesis. Our aim was to develop a quantitative PCR (qPCR) assay to measure EHV-5 viral copy number in equine cell cultures, blood lymphocytes, and nasal swabs of horses. Furthermore, we used a recently developed equine primary respiratory cell culture system to study EHV-5 pathogenesis at the respiratory tract...
April 25, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28453946/a-dermatologist-s-approach-to-genitourinary-syndrome-of-menopause
#16
Matthew Hum, Marlene Dytoc
BACKGROUND: Genitourinary syndrome of menopause (GSM) is a debilitating condition caused by hypoestrogenism that presents with vaginal dryness and dyspareunia as well as other genital, sexual, and urinary symptoms. Previously known as atrophic vaginitis, the term GSM is now used. OBJECTIVE: To help familiarise dermatologists with diagnosing and managing GSM. METHODS: In total, 218 articles were identified and reviewed by 2 independent authors using PubMed...
April 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28444912/whole-genome-sequencing-reveals-a-novel-deletion-variant-in-the-kit-gene-in-horses-with-white-spotted-coat-colour-phenotypes
#17
N Dürig, R Jude, H Holl, S A Brooks, C Lafayette, V Jagannathan, T Leeb
White spotting phenotypes in horses can range in severity from the common white markings up to completely white horses. EDNRB, KIT, MITF, PAX3 and TRPM1 represent known candidate genes for such phenotypes in horses. For the present study, we re-investigated a large horse family segregating a variable white spotting phenotype, for which conventional Sanger sequencing of the candidate genes' individual exons had failed to reveal the causative variant. We obtained whole genome sequence data from an affected horse and specifically searched for structural variants in the known candidate genes...
April 26, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28424285/equine-arteritis-virus-has-specific-tropism-for-stromal-cells-and-cd8-t-and-cd21-b-lymphocytes-but-not-glandular-epithelium-at-the-primary-site-of-persistent-infection-in-the-stallion-reproductive-tract
#18
Mariano Carossino, Alan T Loynachan, Igor F Canisso, R Frank Cook, Juliana R Campos, Bora Nam, Yun Young Go, Edward L Squires, Mats H T Troedsson, Thomas Swerczek, Fabio Del Piero, Ernest Bailey, Peter J Timoney, Udeni B R Balasuriya
Equine arteritis virus (EAV) has a global impact on the equine industry being the causative agent of equine viral arteritis (EVA), a respiratory, systemic, and reproductive disease of equids. A distinctive feature of EAV infection is that it establishes long-term persistent infection in 10 to 70% of infected stallions (carriers). In these stallions, EAV is only detectable in the reproductive tract and viral persistence occurs despite the presence of high serum neutralizing antibodies. Carrier stallions constitute the natural reservoir of the virus as they continuously shed EAV in their semen...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28416183/inhibition-of-the-in-vitro-growth-of-babesia-bigemina-babesia-caballi-and-theileria-equi-parasites-by-trifluralin-analogues
#19
Marta G Silva, Donald P Knowles, Sandra Antunes, Ana Domingos, Maria A Esteves, Carlos E Suarez
Bovine and equine babesiosis caused by Babesia bovis, Babesia bigemina and Babesia caballi, along with equine theileriosis caused by Theileria equi are global tick-borne hemoprotozoan diseases characterized by fever, anemia, weight losses and abortions. A common feature of these diseases are transition from acute to chronic phases, in which parasites may persist in the hosts for life. Antiprotozoal drugs are important for managing infection and disease. Previous research demonstrated that trifluralin analogues, designated (TFLAs) 1-15, which specifically bind to regions of alpha-tubulin protein in plants and protozoan parasites, have the ability to inhibit the in vitro growth of B...
April 10, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28414603/cardiovascular-findings-in-ponies-with-equine-metabolic-syndrome
#20
Natalie Heliczer, Vinzenz Gerber, Rupert Bruckmaier, Johannes H van der Kolk, Cristobal Navas de Solis
OBJECTIVE To determine whether hypertension, high sympathetic tone, resting and exercising arrhythmias, and echocardiographic changes consistent with hypertensive cardiomyopathy were associated with equine metabolic syndrome (EMS) in ponies. DESIGN Prospective case-control study. ANIMALS 19 privately owned ponies with a diagnosis of EMS (history of laminitis, body condition score ≥ 7/9, cresty neck score ≥ 3/5, and abnormal oral sugar test result; cases) and 20 healthy control ponies. PROCEDURES Heart rate (HR), noninvasively measured arterial blood pressure (BP), markers of autonomic tone (splenic volume and HR variability), 24-hour and exercising ECGs, and echocardiograms were compared between cases and controls...
May 1, 2017: Journal of the American Veterinary Medical Association
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