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https://www.readbyqxmd.com/read/29052538/antimicrobial-resistance-in-rhodococcus-equi
#1
Steeve Giguère, Londa J Berghaus, Jennifer M Willingham-Lane
Pneumonia caused by Rhodococcus equi remains an important cause of disease and death in foals. The combination of a macrolide (erythromycin, azithromycin, or clarithromycin) with rifampin has been the recommended treatment for foals with clinical signs of infection caused by R. equi since the early 1980s with, until recently, only rare reports of resistance. Resistance to macrolides and rifampin in isolates of R. equi cultured from horses is increasing, with isolates resistant to all macrolides and rifampin now being cultured from up to 40% of infected foals at some farms...
October 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/29051294/equine-disease-surveillance-quarterly-summary
#2
(no author information available yet)
of surveillance testing, April to June 2017International disease occurrence in the second quarter of 2017These are among matters discussed in the most recent quarterly equine disease surveillance report, prepared by Defra, the Animal Health Trust and the British Equine Veterinary Association.
October 21, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29050919/anthelmintic-therapy-of-equine-cyathostomin-nematodes-larvicidal-efficacy-egg-reappearance-period-and-drug-resistance
#3
Jennifer L Bellaw, Kristen Krebs, Craig R Reinemeyer, Jamie K Norris, Jessica A Scare, Stefanie Pagano, Martin K Nielsen
Cyathostomins are ubiquitous in grazing horses across the world, and anthelmintic resistance has been reported with increasing levels over past decades. The aims of the present study were i) to investigate the efficacy against encysted larval stages of moxidectin (0.4 mg/kg) and fenbendazole (10 mg/kg daily for five consecutive days) and compare these regimens at 2 and 5 weeks post-treatment, ii) to investigate individual cyathostomin species associated with shortened egg reappearance periods (ERP), and iii) to document species exhibiting decreased susceptibility to the evaluated compounds...
October 16, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/29049924/equine-mesenchymal-stem-cells-derived-from-endometrial-or-adipose-tissue-share-significant-biological-properties-but-have-distinctive-pattern-of-surface-markers-and-migration
#4
J Cabezas, D Rojas, F Navarrete, R Ortiz, G Rivera, F Saravia, L Rodriguez-Alvarez, F O Castro
Adult stromal mesenchymal stem cells (MSCs) have been postulated as responsible for cell renewal in highly and continuously regenerative tissues such as the endometrium. MSCs have been identified in the endometrium of many species including humans, rodents, pets and some farm animals, but not in horses. The objective of this work was to isolate such cells from the endometrium of mares and to compare their main biological attributes with horse adipose-derived MSCs. Here we successfully isolated and characterized endometrial MSCs (eMSCs) from mares...
October 6, 2017: Theriogenology
https://www.readbyqxmd.com/read/29047412/wetland-characteristics-linked-to-broad-scale-patterns-in-culiseta-melanura-abundance-and-eastern-equine-encephalitis-virus-infection
#5
Nicholas K Skaff, Philip M Armstrong, Theodore G Andreadis, Kendra S Cheruvelil
BACKGROUND: Eastern equine encephalitis virus (EEEV) is an expanding mosquito-borne threat to humans and domestic animal populations in the northeastern United States. Outbreaks of EEEV are challenging to predict due to spatial and temporal uncertainty in the abundance and viral infection of Cs. melanura, the principal enzootic vector. EEEV activity may be closely linked to wetlands because they provide essential habitat for mosquito vectors and avian reservoir hosts. However, wetlands are not homogeneous and can vary by vegetation, connectivity, size, and inundation patterns...
October 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29047258/identification-and-expression-analyses-of-equine-endogenous-retroviruses-in-horses
#6
Jeong-An Gim, Heui-Soo Kim
Endogenous retroviruses (ERVs) have been integrated into vertebrate genomes and have momentously affected host organisms. Horses (Equus caballus) have been domesticated and selected for elite racing ability over centuries. ERVs played an important role in the evolutionary diversification of the horse genome. In the present study, we identified six equine ERV families (EqERVs-E1, I1, M2, P1, S1, and Y4), their fulllength viral open reading frames (ORFs), and elucidated their phylogenetic relationships. The divergence time of EqERV families assuming an evolutionary rate of 0...
October 17, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29045436/development-and-characterization-of-novel-chimeric-monoclonal-antibodies-for-broad-spectrum-neutralization-of-rabies-virus
#7
Pan Kyeom Kim, Sun Ju Keum, Modupe O V Osinubi, Richard Franka, Ji Young Shin, Sang Tae Park, Man Su Kim, Mi Jung Park, Soo Young Lee, William Carson, Lauren Greenberg, Pengcheng Yu, Xiaoyan Tao, Wang Lihua, Qing Tang, Guodong Liang, Madhusdana Shampur, Charles E Rupprecht, Shin Jae Chang
Current post-exposure prophylaxis for rabies virus infection has several limitations in terms of supply, cost, safety, and efficacy. Attempts to replace human or equine rabies immune globulins (HRIG or ERIG) have been made by several companies and institutes. We developed potent monoclonal antibodies to neutralize a broad spectrum of rabies viruses by screening hybridomas received from the U.S. Centers for Disease Control and Prevention (CDC). Two kinds of chimeric human antibodies (chimeric #7 and #17) were constructed by cloning the variable regions from selected hybridomas and the constant region of a human antibody...
2017: PloS One
https://www.readbyqxmd.com/read/29044680/effects-of-three-blood-derived-products-on-equine-corneal-cells-an-in-vitro-study
#8
J O Rushton, E Kammergruber, A Tichy, M Egerbacher, B Nell, S Gabner
BACKGROUND: Despite advances in therapy of corneal ulcerative diseases in horses, a vast number of cases require surgical intervention, due to poor response to treatment. Topical application of serum has been used for many years, based on its anti-collagenolytic properties and the presence of growth factors promoting corneal wound healing. However, although other blood derived products i.e. platelet rich plasma (PRP), plasma rich in growth factors (PRGF) have been widely used in equine orthopaedics and in human ophthalmology, no reports of the effects of these blood derived products exist in equine ophthalmology...
October 16, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29042013/inhibition-of-microsomal-prostaglandin-e-synthase-1-mpges-1-selectively-suppresses-pge2-in-an-in-vitro-equine-inflammation-model
#9
Emily M Martin, Samuel L Jones
Inhibition of prostaglandin E2 (PGE2) production effectively limits inflammation in horses, however nonspecific prostaglandin blockade via cyclooxygenase (COX) inhibition elicits deleterious gastrointestinal side effects in equine patients. Thus, more selective PGE2 targeting therapeutics are needed to treat inflammatory disease in horses. One potential target is microsomal prostaglandin E-synthase-1 (mPGES-1), which is the terminal enzyme downstream of COX-2 in the inducible PGE2 synthesis cascade. This enzyme has yet to be studied in equine leukocytes, which play a pivotal role in equine inflammatory disease...
October 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29039146/estrogen-based-hormone-therapy-in-women-with-primary-ovarian-insufficiency-a-systematic-review
#10
Nydia Burgos, Dahima Cintron, Paula Latortue-Albino, Valentina Serrano, Rene Rodriguez Gutierrez, Stephanie Faubion, Gabriela Spencer-Bonilla, Patricia J Erwin, Mohammad Hassan Murad
PURPOSE: Sex hormones play a role in bone density, cardiovascular health, and wellbeing throughout reproductive lifespan. Women with primary ovarian insufficiency (POI) have lower estrogen levels requiring hormone therapy (HT) to manage symptoms and to protect against adverse long-term health outcomes. Yet, the effectiveness of HT in preventing adverse outcomes has not been systematically assessed. We summarize the evidence regarding effects of HT on bone and cardiovascular health in women with POI...
October 16, 2017: Endocrine
https://www.readbyqxmd.com/read/29034850/pseudomonas-aeruginosa-variants-obtained-from-veterinary-clinical-samples-reveal-a-role-for-cyclic-di-gmp-in-biofilm-formation-and-colony-morphology
#11
Maria T Brock, Galya C Fedderly, Grace I Borlee, Michael M Russell, Liliana K Filipowska, Doreene R Hyatt, Ryan A Ferris, Bradley R Borlee
Overuse of antibiotics is contributing to an emerging antimicrobial resistance crisis. To better understand how bacteria adapt tolerance and resist antibiotic treatment, Pseudomonas aeruginosa isolates obtained from infection sites sampled from companion animals were collected and evaluated for phenotypic differences. Selected pairs of clonal isolates were obtained from individual infection samples and were assessed for antibiotic susceptibility, cyclic di-GMP levels, biofilm production, motility and genetic-relatedness...
October 16, 2017: Microbiology
https://www.readbyqxmd.com/read/29034501/influence-of-dental-materials-on-cells-of-the-equine-periodontium
#12
H Ringeisen, A Pöschke, B Krähling, C Schröck, M Stoll, J Vogelsberg, K Failing, C Staszyk
BACKGROUND: Therapy for equine periodontal disease can include filling of the periodontal pockets and widened interproximal spaces. Recommended dental materials are generally adopted from human dentistry. OBJECTIVES: To evaluate the biocompatibility of dental materials for equine periodontal fillings in vitro. STUDY DESIGN: In vitro experiments. METHODS: Four different dental materials (PeriCare(®) , Provicol(®) , Calxyl(®) and Honigum) were tested on equine periodontal fibroblasts...
October 16, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29034250/the-modification-and-performance-of-a-large-animal-anesthesia-machine-tafonius-%C3%A2-in-order-to-deliver-xenon-to-a-horse
#13
Bruna Santangelo, Astrid Robin, Keith Simpson, Julie Potier, Michel Guichardant, Karine Portier
INTRODUCTION: Xenon, due to its interesting anesthetic properties, could improve the quality of anesthesia protocols in horses despite its high price. This study aimed to modify and test an anesthesia machine capable of delivering xenon to a horse. MATERIALS AND METHODS: An equine anesthesia machine (Tafonius, Vetronic Services Ltd., UK) was modified by including a T-connector in the valve block to introduce xenon, so that the xenon was pushed into the machine cylinder by the expired gases...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29034249/misoprostol-inhibits-lipopolysaccharide-induced-pro-inflammatory-cytokine-production-by-equine-leukocytes
#14
Emily Medlin Martin, Kristen M Messenger, Mary Katherine Sheats, Samuel L Jones
Pro-inflammatory cytokines including tumor necrosis factor α (TNFα), IL-1β, IL-6, and IL-8 are potent immune mediators that exacerbate multiple equine diseases such as sepsis and laminitis. Unfortunately, safe and effective cytokine-targeting therapies are lacking in horses; therefore, novel mechanisms of inhibiting cytokine production are critically needed. One potential mechanism for inhibiting cytokine synthesis is elevation of intracellular cyclic AMP (cAMP). In human leukocytes, intracellular cAMP production is induced by activation of E-prostanoid (EP) receptors 2 and 4...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29034248/misoprostol-inhibits-equine-neutrophil-adhesion-migration-and-respiratory-burst-in-an-in-vitro-model-of-inflammation
#15
Emily Medlin Martin, Rebecca Louise Till, Mary Katherine Sheats, Samuel L Jones
In many equine inflammatory disease states, neutrophil activities, such as adhesion, migration, and reactive oxygen species (ROS) production become dysregulated. Dysregulated neutrophil activation causes tissue damage in horses with asthma, colitis, laminitis, and gastric glandular disease. Non-steroidal anti-inflammatory drugs do not adequately inhibit neutrophil inflammatory functions and can lead to dangerous adverse effects. Therefore, novel therapies that target mechanisms of neutrophil-mediated tissue damage are needed...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29032573/protein-biomarkers-of-cell-proliferation-determine-prognosis-in-cases-of-equine-large-colon-volvulus
#16
C R Kucera, L W Stranahan, F Hughes, A T Blikslager, L M Gonzalez
BACKGROUND: Progenitor cells play critical roles in epithelial repair following ischaemic injury. Protein biomarkers have been used to identify intestinal progenitor cell subpopulations. This study aims to determine if a critical number of intestinal progenitor cells can predict tissue viability and survival to discharge of large colon volvulus (LCV) cases. OBJECTIVES: The objectives were to (1) identify intestinal progenitor cell subpopulations using biomarkers: proliferating cell nuclear antigen (PCNA), sex determining region Y box 9 (SOX9), phospho-histone H3 (PHH3), and Ki-67, (2) define cutoff values for critical numbers of positive cells and (3) determine if survival to discharge is associated with cutoff values...
October 15, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29031416/zinc-silicate-mineral-coated-scaffold-improved-in-vitro-osteogenic-differentiation-of-equine-adipose-derived-mesenchymal-stem-cells
#17
Behnaz Bageshlooyafshar, Saeid Vakilian, Mousa Kehtari, Tarlan Eslami-Arshaghi, Farjad Rafeie, Rouhallah Ramezanifard, Reza Rahchamani, Abdollah Mohammadi-Sangcheshmeh, Yousef Mostafaloo, Ehsan Seyedjafari
In current study we aimed to coat the PLLA scaffold with zinc (Zn) silicate mineral nanoparticles. Then, using equine adipose-derived stem cells (ASCs) we intended to compare the osteogenic induction potency of Zn silicate mineral-coated PLLA scaffold with uncoated PLLA scaffold and tissue culture plastic (TCPS). Adipose tissues were collected from 3 horses, and isolation of ASCs was achieved by enzymatic digestion. PLLA scaffold was successfully prepared using a phase separation method and coated with Zn silicate mineral nanoparticles...
September 18, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29028843/efficiency-of-different-air-filter-types-for-pig-facilities-at-laboratory-scale
#18
Cindy Wenke, Janina Pospiech, Tobias Reutter, Uwe Truyen, Stephanie Speck
Air filtration has been shown to be efficient in reducing pathogen burden in circulating air. We determined at laboratory scale the retention efficiency of different air filter types either composed of a prefilter (EU class G4) and a secondary fiberglass filter (EU class F9) or consisting of a filter mat (EU class M6 and F8-9). Four filter prototypes were tested for their capability to remove aerosol containing equine arteritis virus (EAV), porcine reproductive and respiratory syndrome virus (PRRSV), bovine enterovirus 1 (BEV), Actinobacillus pleuropneumoniae (APP), and Staphylococcus (S...
2017: PloS One
https://www.readbyqxmd.com/read/29028822/serial-omics-characterization-of-equine-urine
#19
Min Yuan, Susanne B Breitkopf, John M Asara
Horse urine is easily collected and contains molecules readily measurable using mass spectrometry that can be used as biomarkers representative of health, disease or drug tampering. This study aimed at analyzing microliter levels of horse urine to purify, identify and quantify proteins, polar metabolites and non-polar lipids. Urine from a healthy 12 year old quarter horse mare on a diet of grass hay and vitamin/mineral supplements with limited pasture access was collected for serial-omics characterization. The urine was treated with methyl tert-butyl ether (MTBE) and methanol to partition into three distinct layers for protein, non-polar lipid and polar metabolite content from a single liquid-liquid extraction and was repeated two times...
2017: PloS One
https://www.readbyqxmd.com/read/29024547/equine-endometrial-explants-undergo-significant-degenerative-changes-in-culture
#20
Rose Schwinghamer, Alessandro Massolo, Cameron Knight, Claudia Klein
The current study evaluated equine endometrial explants following 12, 24, and 48 hours in culture. Measurement of an indicator of cell death in explant supernatant, light microscopy, and gene expression of biomarkers of endometrial function and cellular stress, were used to compare the effect of six different media on explant viability and morphology. Viability of explants was assessed indirectly through measuring LDH activity in the culture supernatant. Regardless of culture medium composition, a significant increase in LDH activity was observed within 12 hours of culture, indicating occurrence of cell damage...
October 12, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
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