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https://www.readbyqxmd.com/read/29781675/axial-sesamoiditis-in-the-horse-a-review
#1
Christelle Le Roux, Ann Carstens
Axial sesamoiditis or osteitis of the proximal sesamoid bones (PSBs) in the horse is described as a rare condition. The cause remains unknown and speculative, with vascular, infectious, and traumatic aetiologies implicated. It is specifically associated with injury of the palmar or plantar ligament (PL), also known as the intersesamoidean ligament. Imaging findings are generally rewarding and radiological changes are typical, if not pathognomonic, for the condition. Lesions consist of bone lysis at the apical to mid-body axial margins of the PSBs, with variable degrees of joint effusion...
March 29, 2018: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/29780505/macrophage-mediated-delivery-of-light-activated-nitric-oxide-prodrugs-with-spatial-temporal-and-concentration-control
#2
Michael A Evans, Po-Ju Huang, Yuji Iwamoto, Kelly N Ibsen, Emory M Chan, Yutaka Hitomi, Peter C Ford, Samir Mitragotri
Nitric oxide (NO) holds great promise as a treatment for cancer hypoxia, if its concentration and localization can be precisely controlled. Here, we report a "Trojan Horse" strategy to provide the necessary spatial, temporal, and dosage control of such drug-delivery therapies at targeted tissues. Described is a unique package consisting of (1) a manganese-nitrosyl complex, which is a photoactivated NO-releasing moiety (photoNORM), plus Nd3+ -doped upconverting nanoparticles (Nd-UCNPs) incorporated into (2) biodegradable polymer microparticles that are taken up by (3) bone-marrow derived murine macrophages...
April 21, 2018: Chemical Science
https://www.readbyqxmd.com/read/29779692/development-and-validation-of-an-uhplc-hrms-ms-assay-for-nine-toxic-alkaloids-from-endophyte-infected-pasture-grasses-in-horse-serum
#3
Wiebke Rudolph, Daniela Remane, Dirk K Wissenbach, Frank T Peters
Endophyte fungi (e.g. Epichloë ssp. and Neotyphodium ssp.) in symbiosis with pasture grasses (e.g. Festuca arundinacaea and Lolium perenne) can produce toxic alkaloids, which are suspected to be involved in equine diseases such as fescue toxicosis, ryegrass staggers, and equine fescue oedema. The aim of this study was, therefore, to develop and validate a quantification method for these and related alkaloids: ergocristine, ergocryptine, ergotamine, ergovaline, lolitrem B, lysergic acid, N-acetylloline, N-formylloline, peramine, and paxilline in horse serum...
May 7, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29778670/possible-role-of-iron-containing-proteins-in-physiological-responses-of-soybean-to-static-magnetic-field
#4
Sanaz Shokrollahi, Faezeh Ghanati, Reza H Sajedi, Mohsen Sharifi
Iron is a component of many proteins that have crucial roles in plant growth and development, such as ferritin and catalase. Iron also, as a ferromagnetic element, is assumed to be influenced by a static magnetic field (SMF). In the present study, we examined the relationship between ferrous content and gene expression and activity of ferritin and catalase in soybean plants under the influence of 0, 20, and 30 mT SMF for 5 day, 5 h each. Exposure to 20 mT decreased gene expression of Fe transporter, ferrous and H2 O2 contents and gene expression, content and activity of ferritin and catalase...
May 11, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29778183/high-genetic-diversity-of-extended-spectrum-%C3%AE-lactamases-producing-escherichia-coli-in-feces-of-horses
#5
Syndia Sadikalay, Yann Reynaud, Stéphanie Guyomard-Rabenirina, Mélanie Falord, Célia Ducat, Laetitia Fabre, Simon Le Hello, Antoine Talarmin, Séverine Ferdinand
Extended-spectrum beta-lactamases (ESBLs), especially those of the CTX-M type, represent a major public health problem throughout the world. Although the carriage of ESBL-producing Enterobacteriaceae (EPE) in feces of horses is now well recognized, little is known about the diversity of EPE after treatment of horses with antibiotics. We undertook this study to assess and follow the diversity of EP Escherichia coli isolated from horses after antibiotic treatment for an infection. Fecal samples from two horses treated and two that were untreated were tested for the presence of EPE on different days...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29777386/substrate-metabolism-during-ironman-triathlon-different-horses-on-the-same-courses
#6
Ed Maunder, Andrew E Kilding, Daniel J Plews
Ironman triathlons are ultra-endurance events of extreme duration. The performance level of those competing varies dramatically, with elite competitors finishing in ~ 8:00:00, and lower performing amateurs finishing in ~ 14-15:00:00. When applying appropriate values for swimming, cycling and running economies to these performance times, it is demonstrated that the absolute energy cost of these events is high, and the rate of energy expenditure increases in proportion with the athlete's competitive level...
May 18, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29776006/mineralization-can-be-an-incidental-ultrasonographic-finding-in-equine-tendons-and-ligaments
#7
Etienne J O O'Brien, Roger K W Smith
Tendon/ligament mineralization is recognized in horses but information regarding its clinical significance is limited. The aims of this observational study were to report the structures most commonly affected by ultrasonographically detectable mineralization and, for these, determine frequency of diagnosis and key clinical features. Cases presented at our hospital in April 1999-April 2013 and September 2014-November 2015 were included: a total of 27 horses (22 retrospective, five prospective). Mineralizations were most common in deep digital flexor tendons (10) and suspensory ligament branches (eight), representing 10% and 7% (estimated), respectively, of horses diagnosed with injuries to these structures during the study...
May 18, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29775454/in-vivo-and-in-vitro-studies-of-cry5b-and-nicotinic-acetylcholine-receptor-agonist-anthelmintics-reveal-a-powerful-and-unique-combination-therapy-against-intestinal-nematode-parasites
#8
Yan Hu, Melanie Miller, Bo Zhang, Thanh-Thanh Nguyen, Martin K Nielsen, Raffi V Aroian
BACKGROUND: The soil-transmitted nematodes (STNs) or helminths (hookworms, whipworms, large roundworms) infect the intestines of ~1.5 billion of the poorest peoples and are leading causes of morbidity worldwide. Only one class of anthelmintic or anti-nematode drugs, the benzimidazoles, is currently used in mass drug administrations, which is a dangerous situation. New anti-nematode drugs are urgently needed. Bacillus thuringiensis crystal protein Cry5B is a powerful, promising new candidate...
May 18, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29774961/influence-of-caudal-epidural-analgesia-on-cortisol-concentrations-and-pain-related-behavioral-responses-in-mares-during-and-after-ovariectomy-via-colpotomy
#9
Aileen L Rowland, Kati G Glass, Sicilia T Grady, Kevin J Cummings, Katrin Hinrichs, Ashlee E Watts
OBJECTIVE: To determine the influence of epidural detomidine and morphine on serum corticosteroid concentrations and pain-related behavioral responses in mares during and after ovariectomy via colpotomy. STUDY DESIGN: Blinded prospective study. ANIMALS: Nine university-owned mares. METHODS: Five of 9 horses received caudal epidural detomidine hydrochloride (0.01 mg/kg) and morphine sulfate (0.1 mg/kg) prior to surgery...
May 18, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29773468/determination-of-vitamin-b-12-in-equine-urine-by-liquid-chromatography-inductively-coupled-plasma-mass-spectrometry
#10
Ross Wenzel, Derek Major, Karly Hesp, Philip Doble
Regulating authorities in the racing industry have restricted the administration of potentially performance enhancing cobalt salts to horses. There are severe penalties for trainers presenting horses with elevated urine cobalt concentrations, and compliance is ensured via analysis of total urinary cobalt at thresholds of 100 μg/L. When cobalt is present as part of the cobalamin molecule it is not considered performance enhancing. This paper demonstrates that a horse can excrete a significant proportion of a commercially available vitamin B12 injection in urine without metabolic modification...
May 9, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29773232/risk-factors-associated-with-strongylid-egg-count-prevalence-and-abundance-in-the-united-states-equine-population
#11
M K Nielsen, M A Branan, A M Wiedenheft, R Digianantonio, J A Scare, J L Bellaw, L P Garber, C A Kopral, A M Phillippi-Taylor, J L Traub-Dargatz
Equine strongyle parasites are considered ubiquitous in grazing equids across the world, and cyathostomin parasites are known pathogens causing well-described disease complexes in horses. Decades of intensive anthelmintic treatments have led to anthelmintic resistance in cyathostomins, and current recommendations are to lower treatment intensity and base control strategies on fecal egg count surveillance. Little is known about risk factors associated with strongyle parasite egg shedding patterns in the United States equine population, as the most recent national survey was conducted 20 years ago...
May 14, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29773131/acute-phase-proteins-interleukin-6-tumor-necrosis-factor-nitric-oxide-and-oxidative-stress-markers-in-horses-with-cutaneous-habronemosis-under-field-condition
#12
W El-Deeb, O Iacob, M Fayez, M Elgioushy, T Shawaf, A Ibrahim
Habronemosis is a common parasitic disease of horses worldwide. In order to investigate how haptoglobin (Hp), serum amyloid A (SAA), oxidative stress markers, nitric oxide (NO), interleukin-6 (IL-6) and tumor necrosis factor (TNF- α), varies in cutaneous habronemosis, 30 horses with the clinical disease and 20 clinically healthy horses were included in the current study. The serum levels of Hp, SAA, and proinflammatory cytokines (IL-6 and TNF-α), NO, malondialdehyde (MDA), super oxide dismutase (SOD), glutathione (GSH), and total antioxidant capacity (TAC) were determined in horses before and after two weeks of treatment...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29772981/treatment-of-recent-onset-atrial-fibrillation-with-quinidine-and-flecainide-in-thoroughbred-racehorses-107-cases-1987-2014
#13
Yuji Takahashi, Yuhiro Ishikawa, Hajime Ohmura
OBJECTIVE To compare the efficacy of quinidine and flecainide in treating naturally occurring, recent-onset atrial fibrillation (AF) in Thoroughbred racehorses. DESIGN Retrospective case series. ANIMALS 107 Thoroughbred racehorses. PROCEDURES Medical records of racehorses with AF that were treated with quinidine or flecainide between 1987 and 2014 were reviewed. Signalment, history, treatments, complications, and outcome data were collected. Horses were allocated to 2 groups according to the initial treatment: initial treatment with quinidine (group 1) or initial treatment with flecainide (group 2)...
June 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29770976/pharmacokinetic-and-pharmacodynamic-properties-of-orally-administered-torsemide-in-healthy-horses
#14
Gustavo F Agne, Seung Woo Jung, Anne A Wooldridge, Susan H Duran, William Ravis, Ramiro Toribio
BACKGROUND: Diuretic treatment is the mainstay for management of congestive heart failure in horses, and its use has been restricted to injectable medications because no currently data supports the use of PO administered loop diuretics. OBJECTIVES: To determine the pharmacokinetic and pharmacodynamic properties of PO administered torsemide and, determine if PO administered torsemide, could be used as an alternative to injectable diuretics in the horse. ANIMALS: Six healthy adult mares...
May 17, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29769341/mutational-analysis-of-the-bovine-hepacivirus-internal-ribosome-entry-site
#15
A L Baron, A Schoeniger, P Becher, C Baechlein
In recent years, hepatitis C virus (HCV)-related viruses were identified in several species including dogs, horses, bats and rodents. Additionally, a novel virus of the genus Hepacivirus has been discovered in bovine samples and was termed bovine hepacivirus (BovHepV). Prediction of the BovHepV IRES (internal ribosome entry site) structure revealed strong similarities to the HCV IRES structure comprising domains II, IIIabcde, pseudoknot IIIf and domain IV with the initiation codon AUG. Unlike HCV, only one microRNA-122 (miR-122) binding site could be identified in the BovHepV 5' NTR...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29769299/the-grazing-gait-and-implications-of-toppling-table-geometry-for-primate-footfall-sequences
#16
James R Usherwood, Benjamin J H Smith
Many medium and large herbivores locomote forwards very slowly and intermittently when grazing. While the footfall order during grazing is the same as for walking, the relative fore-hind timing-phasing-is quite different. Extended periods of static stability are clearly required during grazing; however, stability requirements are insufficient to account for the timing. Aspects of relatively rapid rolling and pitching-toppling due to the resistance of the back to bending and twisting-can be included in a simplifying geometric model to explain the observation that, in grazing livestock, a step forward with a forefoot is consistently and immediately followed by a step forward from the hind; but not vice versa...
May 2018: Biology Letters
https://www.readbyqxmd.com/read/29769015/a-comparison-of-methods-for-estimating-substitution-rates-from-ancient-dna-sequence-data
#17
K Jun Tong, David A Duchêne, Sebastián Duchêne, Jemma L Geoghegan, Simon Y W Ho
BACKGROUND: Phylogenetic analysis of DNA from modern and ancient samples allows the reconstruction of important demographic and evolutionary processes. A critical component of these analyses is the estimation of evolutionary rates, which can be calibrated using information about the ages of the samples. However, the reliability of these rate estimates can be negatively affected by among-lineage rate variation and non-random sampling. Using a simulation study, we compared the performance of three phylogenetic methods for inferring evolutionary rates from time-structured data sets: regression of root-to-tip distances, least-squares dating, and Bayesian inference...
May 16, 2018: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29768968/susceptibility-of-gut-indigenous-lactic-acid-bacteria-in-balb-c-mice-to-oral-administered-lactobacillus-plantarum
#18
Takashi Kuda, Yasushi Yokota, Yutaka Haraguchi, Hajime Takahashi, Bon Kimura
Cells of Lactobacillus plantarum strains AN1 and Tennozu-SU2 exert anti-inflammatory responses in ICR mouse models of inflammatory bowel disease and protective effects against S. Typhimurium infection in BALB/c mice, respectively. To clarify the existence of L. plantarum-susceptible gut indigenous bacteria, AN1 and Tennozu-SU2 cells were administered to BALB/c mice via drinking water. Gene amplicon sequencing of 16S rRNA of caecal content revealed that the AN1 and Tennozu-SU2 cells affected the abundance of caecal indigenous lactobacilli, but the effect on the dominant Clostridiales and Bacteroidales was not clear...
May 16, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29767978/dynamics-of-ionic-liquids-assisted-refolding-of-denatured-cytochrome-c-a-study-of-preferential-interactions-towards-renaturation
#19
Upendra Kumar Singh, Rajan Patel
In vitro refolding of denatured proteins and influence of alkyl chain of these organic salts on their performance as refolding enhancers was tested using long chain imidazolium chloride salts, 1-methyl-3-octylimidazolium chloride [C8mim][Cl], 1-decyl-3-methylimidazolium chloride [C10mim][Cl]. The horse heart cytochrome c (h-cyt c) was denatured by urea and guanidinium hydrochloride (GdnHCl), as well as base induced denaturation at pH 13 to provide a broad overview of the overall refolding behavior. The variation in alkyl chain of ionic liquids (ILs) showed a profound effect on the refolding of denatured h-cyt c...
May 16, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29767568/the-relationship-between-intuitive-action-choices-and-moral-reasoning-on-animal-ethics-issues-in-students-of-veterinary-medicine-and-other-relevant-professions
#20
Joy M Verrinder, Clive J C Phillips
With growing understanding of animals' capabilities, and public and organizational pressures to improve animal welfare, moral action by veterinarians and other relevant professionals to address animal issues is increasingly important. Little is known about how their action choices relate to their moral reasoning on animal ethics issues. A moral judgment measure, the VetDIT, with three animal and three non-animal scenarios, was used to investigate the action choices of 619 students in five animal- and two non-animal-related professional programs in one Australian university, and how these related to their moral reasoning based on Personal Interest (PI), Maintaining Norms (MN), or Universal Principles (UP) schemas...
2018: Journal of Veterinary Medical Education
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