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Gregory D Bowden, Kirkwood M Land, Roberta M O'Connor, Heather M Fritz
The apicomplexan parasite Sarcocystis neurona is the primary etiologic agent of equine protozoal myeloencephalitis (EPM), a serious neurologic disease of horses. Many horses in the U.S. are at risk of developing EPM; approximately 50% of all horses in the U.S. have been exposed to S. neurona and treatments for EPM are 60-70% effective. Advancement of treatment requires new technology to identify new drugs for EPM. To address this critical need, we developed, validated, and implemented a high-throughput screen to test 725 FDA-approved compounds from the NIH clinical collections library for anti-S...
February 16, 2018: International Journal for Parasitology, Drugs and Drug Resistance
Jole Mariella, Eleonora Iacono, Aliai Lanci, Barbara Merlo, Caterina Palermo, Lee Morris, Carolina Castagnetti
The umbilical cord (UC), the connection between mother and fetus via the umbilical vessels, carries nutrients and oxygenated blood to the fetus through the umbilical vein and removes deoxygenated blood and waste products via the umbilical arteries. It is designed to protect blood flow to the fetus during pregnancy. In equine medicine, only a few studies have described the UC, and most of these involved Thoroughbreds. The present study describes and compares the macroscopic features of the equine umbilical cord in three different breeds and in relation to the foal's gender...
March 7, 2018: Theriogenology
Martin Bachmann, Aniko Czetö, Kristin Romanowski, Andreas Vernunft, Monika Wensch-Dorendorf, Petra Wolf, Cornelia C Metges, Annette Zeyner
Postprandial alterations of plasma amino acid (PAA) levels partly reflect a temporal contribution of the feed. How cereal grains affect PAA levels is not known. We hypothesized that a meal of cereal grains causes a temporal increase of PAA, affected by grain species, grain genotype and meal size. Six mares were used in three consecutive trials, receiving four oats, barley and maize genotypes, respectively. Individual grain genotypes were provided as 3 meal sizes corresponding to 1.0, 1.5 or 2.0 g starch/kg body weight...
March 13, 2018: Research in Veterinary Science
Andrew Waller
Andrew Waller , head of bacteriology at the AHT, describes Streptococcus equi, the causative agent of strangles in horses, and discusses progress with the latest research aimed at improving vaccines against this global disease.
March 17, 2018: Veterinary Record
(no author information available yet)
No abstract text is available yet for this article.
March 17, 2018: Veterinary Record
Elizabeth W Uhl
Although vitamin D is critical to calcium/phosphorus homeostasis, bone formation and remodeling, there is evolution-based variation between species in vitamin D metabolism and susceptibility to rickets and osteomalacia. Most herbivores produce vitamin D3 in response to sunlight, but dogs and cats have generally lost the ability as carnivore diets are rich in vitamin D. Nutritional deficiencies and/or poor exposure to sunlight can induce rickets in birds, swine, cattle and sheep, but horses are less susceptible as they have evolved a calcium homeostasis that is quite different than other animals...
March 13, 2018: International Journal of Paleopathology
Sophie Mißbach, Denis Aleksic, Lisa Blaschke, Timm Hassemer, Kyung Jin Lee, Martin Mansfeld, Jana Hänske, Johannes Handler, Robert Kammerer
BACKGROUND: The CEA gene family is one of the most rapidly evolving gene families in the human genome. The founder gene of the family is thought to be an ancestor of the inhibitory immune checkpoint molecule CEACAM1. Comprehensive analyses of mammalian genomes showed that the CEA gene family is subject to tremendous gene family expansion and contraction events in different mammalian species. While in some species (e.g. rabbits) less than three CEACAM1 related genes exist, were in others (certain microbat species) up to 100 CEACAM1 paralogs identified...
March 15, 2018: BMC Evolutionary Biology
Glenn A Jacobson, Sharanne Raidal, Kate Robson, Christian K Narkowicz, David S Nichols, E Haydn Walters
BACKGROUND: Salmeterol (a long acting beta2-agonist) is a chiral molecule. (RR)-salmeterol is responsible for pharmacological effect, but basic knowledge of enantioselective pulmonary pharmacodynamics and pharmacokinetics of salmeterol remains unknown. There are safety concerns with (S)-enantiomers of beta2-agonists, with suggestions that these enantiomers may increase bronchial hyperresponsivneness in asthma patients. METHODOLOGY: Horses (n = 12) received racemic (rac-) salmeterol 250 μg via inhalation...
February 23, 2018: Journal of Pharmaceutical and Biomedical Analysis
Preecha Patumcharoenpol, Thidarat Rujirawat, Tassanee Lohnoo, Wanta Yingyong, Nongnuch Vanittanakom, Weerayuth Kittichotirat, Theerapong Krajaejun
Pythium insidiosum is an aquatic oomycete microorganism that causes the fatal infectious disease, pythiosis, in humans and animals. The organism has been successfully isolated from the environment worldwide. Diagnosis and treatment of pythiosis is difficult and challenging. Genome sequences of P. insidiosum , isolated from humans, are available and accessible in public databases. To further facilitate biology-, pathogenicity-, and evolution-related genomic and genetic studies of P. insidiosum , we report two additional draft genome sequences of the P...
February 2018: Data in Brief
Patricia Voelpel, Lori Escallier, Judith Fullerton, Louise Abitbol
No abstract text is available yet for this article.
March 14, 2018: Journal of Psychosocial Nursing and Mental Health Services
Almut Prkno, Matthias Kaiser, Daniela Goerigk, Martin Pfeffer, Thomas W Vahlenkamp, Donata Hoffmann, Martin Beer, Alexander Starke
Cowpox virus (CPXV) infection is a reportable and potentially zoonotic disease that occurs sporadically in a variety of animals. During the past six decades, CPXV infection has been extensively researched and described in both domestic (cat, dog, horse, cattle) and zoo animals (e. g. elephant, rhinoceros, okapi). Of note, a review of the literature produced only three reports of CPXV in individual or small groups of South American camelids. The goal of this review was to describe the current knowledge as it relates to clinical features of CPXV infection in South American camelids and to compare the clinical manifestations with those described in other animal species...
February 2018: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
Ramona Weber, Rainer Hospes, Axel Wehrend
The aim of this study was to summarize the current status of the possible causes, clinical symptoms and pathogenesis of abortion in the mare and to evaluate the frequency of varying causes of abortion in German thoroughbred breeding. An analysis of the literature using electronic libraries, journals and textbooks was performed. In addition, the results of examinations of 123 abortions of thoroughbred breeding in central Germany were evaluated. In the literature, bacterial infections are the most frequently described cause of abortion...
February 2018: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
Jolanta Kolodziejek, Christof Jungbauer, Stephan W Aberle, Franz Allerberger, Zoltán Bagó, Jeremy V Camp, Katharina Dimmel, Phebe de Heus, Michael Kolodziejek, Peter Schiefer, Bernhard Seidel, Karin Stiasny, Norbert Nowotny
The results of integrated human and veterinary surveillance for West Nile virus (WNV) infections in Austria during the transmission seasons 2015 and 2016 are shown. Altogether WNV nucleic acid was detected in 21 humans, horses, wild birds and mosquito pools. In detail: in four human clinical cases [two cases of West Nile fever (WNF) and two cases of West Nile neuroinvasive disease (WNND)]; eight blood donors [among 145,541 tested donations], of which three remained asymptomatic and five subsequently developed mild WNF; two horses with WNND, of which one recovered and one had to be euthanized; two wild birds [one goshawk and one falcon, both succumbed to WNND]; and five Culex pipiens mosquito pools...
March 14, 2018: Emerging Microbes & Infections
Kelli A Davis, Kristin M Klohonatz, Darcy S O Mora, Hannah M Twenter, Peter E Graham, Pablo Pinedo, Douglas C Eckery, Jason E Bruemmer
Currently there is no contraceptive vaccine that can cause permanent sterility in mares. This study investigates the effect of vaccination against oocyte-specific growth factors, Bone Morphogenetic Protein 15 (BMP-15) and Growth Differentiation Factor 9 (GDF-9), on ovarian function of mares. It was hypothesized that immunization against these growth factors would prevent ovulation and/or accelerate depletion of the oocyte reserve. For this study, 30 mares were randomly assigned to three groups (n = 10/group) and vaccinated with BMP-15 or GDF-9 peptides conjugated to KLH and adjuvant, or a control of phosphate buffered saline and adjuvant...
March 6, 2018: Animal Reproduction Science
Pilar Camacho-Luna, Benjamin Buchanan, Frank M Andrews
Equine gastric ulcer syndrome (EGUS) primarily describes ulceration in the terminal esophagus, nonglandular squamous mucosa, glandular mucosa of the stomach, and proximal duodenum. EGUS is common in all breeds and ages of horses and foals. This article focuses on the current terminology for EGUS, etiologies and pathogenesis for lesions in the nonglandular and glandular stomach, diagnosis, and a comprehensive approach to the treatment and prevention of EGUS in adult horses and foals.
April 2018: Veterinary Clinics of North America. Equine Practice
C Langdon Fielding
With advances in technology and owner education, field management in equine veterinary medicine continues to evolve. Equine gastrointestinal disease is one of the most common types of emergencies evaluated by equine practitioners, and many of these patients can be effectively managed in the field. Although the equine veterinarian must make numerous decisions, fluid therapy, pain management, and antimicrobial use are 3 of the major choices that must be addressed when initiating field treatment of equine gastrointestinal disease...
April 2018: Veterinary Clinics of North America. Equine Practice
Stephan Bosch, Filipe Serra Bragança, Mihai Marin-Perianu, Raluca Marin-Perianu, Berend Jan van der Zwaag, John Voskamp, Willem Back, René van Weeren, Paul Havinga
In this paper, we describe and validate the EquiMoves system, which aims to support equine veterinarians in assessing lameness and gait performance in horses. The system works by capturing horse motion from up to eight synchronized wireless inertial measurement units. It can be used in various equine gait modes, and analyzes both upper-body and limb movements. The validation against an optical motion capture system is based on a Bland-Altman analysis that illustrates the agreement between the two systems. The sagittal kinematic results (protraction, retraction, and sagittal range of motion) show limits of agreement of ± 2...
March 13, 2018: Sensors
Patricia G Rosenstein, Brett S Tennent-Brown, Dez Hughes
OBJECTIVE: To review the current literature pertaining to the use of lactate as a prognostic indicator and therapeutic guide, the utility of measuring lactate concentrations in body fluids other than blood or plasma, and the clinical management of hyperlactatemia in dogs, cats, and horses. DATA SOURCES: Articles were retrieved without date restrictions primarily via PubMed, Scopus, and CAB Abstracts as well as by manual selection. HUMAN AND VETERINARY DATA SYNTHESIS: Increased plasma lactate concentrations are associated with increased morbidity and mortality...
March 2018: Journal of Veterinary Emergency and Critical Care
Esther Solomon Mshelia, Lawan Adamu, Yakaka Wakil, Usman Aliyu Turaki, Isa Adamu Gulani, Jasini Musa
The equine gut harbours complex microbial populations which influence physiology, metabolism, nutrition and immune functions, while disruption to the gut microbiota has been linked with conditions such as lameness, diabetes and obesity. Therefore, the present study was conducted to determine the association between microbial dysbiosis, sex, age and body condition scores (BCS) of horses (Equus equus caballus) in Maiduguri and its environs. Forty horses were assessed by convenient sampling, while faecal samples were collected and analyzed to determine the microbiomes in the various age groups with variable BSC in stallions and mares...
March 9, 2018: Microbial Pathogenesis
Yongqiang Liu, Melissa Siard, Amanda Adams, Michael L Keowen, Travis K Miller, Frank Garza, Frank M Andrews, Navindra P Seeram
The human health benefits attributed to turmeric/curcumin spice has resulted in its wide utilization as a dietary supplement for companion pets and other animals including horses. While the quantification of free curcuminoids (curcumin, demethoxycurcumin, bisdemethoxycurcumin) and their phase-2 metabolites (curcumin-O-sulfate, curcumin-O-glucuronide) have been extensively investigated in human and rodent biological samples (primarily plasma and serum), there is lack of similar data for horses. Herein, we report a validated LC-ESI-MS/MS method for the simultaneous quantification of the aforementioned free curcuminoids and their metabolites in equine plasma...
March 7, 2018: Journal of Pharmaceutical and Biomedical Analysis
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