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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/28526917/do-we-know-the-outcome-predictors-for-cauda-equine-syndrome-ces-a-retrospective-single-center-analysis-of-60-patients-with-ces-with-a-suggestion-for-a-new-score-to-measure-severity-of-symptoms
#3
Alexander König, Lisa Amelung, Marco Danne, Ullrich Meier, Johannes Lemcke
OBJECTIVE: Despite the awareness and familiarity of almost every medical professional with the cauda equine compression syndrome (CES), risk factors for a poor prognosis of the disease remain elusive. Even the relationship between subsequent outcome and the time elapsed from the time of appearance of symptoms to surgery taking place remain obscure. The aim of our study, therefore, was to analyze a relatively large population of our own patients studied consecutively, to identify outcome predictors for CES and to propose a clinical score for CES symptoms (Berlin CES score)...
May 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28525338/different-training-schedules-influence-platelet-aggregation-in-show-jumping-horses
#4
C Giannetto, F Arfuso, F Fazio, E Giudice, S Di Pietro, D Bruschetta, G Piccione
Depending on the intensity, duration and type of physical exercise, equine metabolism has to adapt to nervous, cardiovascular, endocrine and respiratory system requirements. In horses, exercise and training are known to have considerable effects on the mechanisms of hemostatic system involving platelet activity. The aim of the present study was to evaluate the effect of different training schedules on platelet aggregation in 15 Italian Saddle jumping horses. Animals were divided into three equal groups: Group A was subjected to a high intensity-training program; group B to a light training program, group C included sedentary horses...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28521915/a-tall-rostral-hook-in-a-medieval-horse-premolar-tooth
#5
Suvi Viranta, Kristiina Mannermaa
Development of dental abnormalities due to improper occlusal wear is common among modern domestic horses. This phenomenon often is attributed to jaw conformation. Rostral mandibular hooks may develop in horses with underjet or mandibular prognathism, a condition where the lower jaw protrudes forward, beyond the upper jaw. Less abrasive diet, free of phytoliths and matrix-like plant fibers, also may promote enamel and focal overgrowths of equine dentition. Here we report a rostral mandibular hook in a lower premolar tooth of a medieval horse, found in a spring deposit in Levänluhta, Osthrobothnia, Finland...
June 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28521909/proximal-interphalangeal-joint-ankylosis-in-an-early-medieval-horse-from-wroc%C3%A5-aw-cathedral-island-poland
#6
Maciej Janeczek, Aleksander Chrószcz, Vedat Onar, Radomir Henklewski, Aleksandra Skalec
Animal remains that are unearthed during archaeological excavations often provide useful information about socio-cultural context, including human habits, beliefs, and ancestral relationships. In this report, we present pathologically altered equine first and second phalanges from an 11th century specimen that was excavated at Wrocław Cathedral Island, Poland. The results of gross examination, radiography, and computed tomography, indicate osteoarthritis of the proximal interphalangeal joint, with partial ankylosis...
June 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28521851/regulation-of-interleukin-11-expression-in-ovulatory-follicles-of-the-rat-ovary
#7
You-Jee Jang, You-Jee Jang, Jae-Il Park, Jae-Il Park, Seong-Eun Jeong, Seong-Eun Jeong, You-Mi Seo, You-Mi Seo, Phuong T M Dam, Phuong T M Dam, Young-Woo Seo, Young-Woo Seo, Bum-Chae Choi, Bum-Chae Choi, Sang-Jin Song, Sang-Jin Song, Sang-Young Chun, Sang-Young Chun, Moon-Kyoung Cho, Moon-Kyoung Cho
The aim of the present study was to examine the regulation of interleukin (IL)-11 expression, as well as the role of IL-11, during ovulation in gonadotropin-primed immature rats. Injection of equine chorionic gonadotropin (eCG), followed by human CG (hCG) to induce superovulation stimulated expression of the Il11 gene in theca cells within 6h, as revealed by northern blot and in situ hybridisation analyses. Real-time reverse transcription-polymerase chain reaction analysis showed that the IL-11 receptor, α subunit gene was expressed in granulosa and theca cells and that injection of hCG had no effect on its expression...
May 19, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28521605/chemoenzymatic-synthesis-and-characterization-of-n-glycolylneuraminic-acid-carrying-sialoglycopolypeptides-as-effective-inhibitors-against-equine-influenza-virus-hemagglutination
#8
Makoto Ogata, Ami Koizumi, Tadamune Otsubo, Kiyoshi Ikeda, Mao Sakamoto, Rena Aita, Tatsuya Kato, Enoch Y Park, Takashi Yamanaka, Kazuya I P J Hidari
A series of novel sialoglycopolypeptides carrying N-glycolylneuraminic acid (Neu5Gc)-containing trisaccharides having α(2 → 3)- and α(2 → 6)-linkages in the side chains of γ-polyglutamic acid (γ-PGA) were designed as competitive inhibitors against equine influenza viruses (EIV), which critically recognize the Neu5Gc residue for receptor binding. Using horse red blood cells (HRBC) we successfully evaluated the binding activity of the multivalent Neu5Gc ligands to both equine and canine influenza viruses in the hemagglutination inhibition (HI) assay...
May 18, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28520915/ovary-specific-depletion-of-the-nuclear-receptor-nr5a2-compromises-expansion-of-the-cumulus-oophorus-but-not-fertilization-by-icsi
#9
Kalyne Bertolin, Marie-Charlotte Meinsohn, João Suzuki, Jan Gossen, Kristina Schoonjans, Rajesha Duggavathi, Bruce D Murphy
The orphan nuclear receptor, liver receptor homolog-1 (Nr5a2) is widely expressed in mammalian tissues, its ovarian expression is restricted to granulosa cells of activated follicles. We employed the floxed Nr5a2 (Nr5a2f/f) mutant mouse line and two granulosa-specific Cre lines, Amhr2Cre and tgCyp19Cre, to develop two tissue- and time-specific Nr5a2 depletion models, Nr5a2Amhr2-/- and Nr5a2Cyp19-/-. In the Nr5a2Cyp19-/- ovaries, Nr5a2 was depleted in mural granulosa, but not cumulus cells. We induced follicular development in mutant and wild type (control, CON) mice with equine chorionic gonadotropin (eCG) followed 44h later treatment with human chorionic gonadotropin (hCG) to induce ovulation...
May 18, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28520789/antigen-specific-immunoglobulin-variable-region-sequencing-measures-humoral-immune-response-to-vaccination-in-the-equine-neonate
#10
Rebecca L Tallmadge, Steven C Miller, Stephen A Parry, Maria Julia B Felippe
The value of prophylactic neonatal vaccination is challenged by the interference of passively transferred maternal antibodies and immune competence at birth. Taken our previous studies on equine B cell ontogeny, we hypothesized that the equine neonate generates a diverse immunoglobulin repertoire in response to vaccination, independently of circulating maternal antibodies. In this study, equine neonates were vaccinated with 3 doses of keyhole limpet hemocyanin (KLH) or equine influenza vaccine, and humoral immune responses were assessed using antigen-specific serum antibodies and B cell Ig variable region sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28520166/operator-based-variability-of-equine-thromboelastography
#11
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/28516844/clues-for-two-step-virion-infectivity-factor-regulation-by-core-binding-factor-beta
#12
Youwei Ai, Jianzhang Ma, Xiaojun Wang
Lentiviruses threaten human and animal health. Virion infectivity factor (Vif) is essential for the infectivity of most lentiviruses, except for the equine infectious anaemia virus (EIAV). Vif promotes viral infectivity by recruiting a Cullin-based E3 ligase to induce the degradation of a class of host restriction factors, named APOBEC3. Core binding factor beta (CBF-β) is necessary for several primate lentiviral Vif functions, including HIV-1 Vif. Although much progress has been made in understanding the contribution of CBF-β to Vif function, the precise mechanism has not yet been fully elucidated...
May 18, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28516447/metacarpophalangeal-joint-injury-patterns-on-magnetic-resonance-imaging-a-comparison-in-racing-standardbreds-and-thoroughbreds
#13
Julien Olive, Nicolas Serraud, Thibault Vila, Jean-Philippe Germain
The metacarpal condyle has received extensive attention as a predominant site of overload arthropathy in racehorses. However, detailed descriptions of MRI lesion patterns for the metacarpophalangeal joint and comparisons between types of racing horses are currently lacking. Aims of this retrospective, cross-sectional study were to describe and compare standing low-field magnetic resonance findings in the metacarpophalangeal joints for groups of Standardbreds and Thoroughbreds using systematic semiquantitative scores...
May 17, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28513182/-it-just-opens-up-their-world-autism-empathy-and-the-therapeutic-effects-of-equine-interactions
#14
Roslyn Malcolm, Stefan Ecks, Martyn Pickersgill
Experiences of autism-spectrum disorder are now increasingly studied by social scientists. Human-animal relations have also become a major focus of social inquiry in recent years. Examining horse-assisted therapy for autistic spectrum disorders, this is the first paper that brings these fields together. Drawing on participant observation and interviews at a UK horse therapy Centre, this article examines how staff and the parents of riders account for the successes and limitations of equine therapy. To the respondents, horses 'open up' autistic children and make possible interactions that seemed impossible before...
May 17, 2017: Anthropology & Medicine
https://www.readbyqxmd.com/read/28513100/function-of-bacteriophage-g7c-esterase-tailspike-in-host-cell-adsorption
#15
Nikolai S Prokhorov, Cristian Riccio, Evelina L Zdorovenko, Mikhail M Shneider, Christopher Browning, Yuriy A Knirel, Petr G Leiman, Andrey V Letarov
Bacteriophages recognize and bind to their hosts with the help of receptor-binding proteins (RBPs) that emanate from the phage particle in the form of fibers or tailspikes. RBPs show a great variability in their shapes, sizes, and location on the particle. Some RBPs are known to depolymerize surface polysaccharides of the host while others show no enzymatic activity. Here we report that both RBPs of podovirus G7C - tailspikes gp63.1 and gp66 - are essential for infection of its natural host bacterium E. coli 4s that populates the equine intestinal tract...
May 17, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28513092/pharmacokinetics-and-pharmacodynamics-of-meldonium-in-exercised-thoroughbred-horses
#16
Heather K Knych, Scott D Stanley, Dan S McKemie, Rick M Arthur, Ulf Bondesson, Mikael Hedeland, Mario Thevis, Philip H Kass
Although developed as a therapeutic medication, meldonium has found widespread use in human sports and was recently added to the World Anti-Doping Agency's list of prohibited substances. It's reported abuse potential in human sports, has led to concern by regulatory authorities about the possible misuse of meldonium in equine athletics. The potential abuse in equine athletes along with the limited data available regarding the pharmacokinetics and pharmacodynamics of meldonium in horses necessitates further study...
May 16, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28511269/the-role-of-birds-in-arboviral-disease-surveillance-in-harris-county-and-the-city-of-houston-texas
#17
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/28511027/ross-konno-procedure-with-cylinder-mitral-valve-replacement-in-49-days-old-infant
#18
Oleg Fedevych, Oleksandr Yachnik, Yaroslav Mykychak, Yaroslav Ivanov, Olga Borodinova, Illya Yemets
A neonate with antenatally diagnosed severe aortic valve stenosis, left ventricular outflow tract obstruction, left ventricular endocardial fibroelastosis, and severe mixed mitral valve disease was admitted to our center for balloon aortic valvuloplasty. On day 49, we performed a Ross-Konno procedure and mitral valve replacement on the baby, whose weight was 3.4 kg. Right ventricle-to-pulmonary artery continuity was restored with a handmade trileaflet Gore-Tex conduit. We used a handmade cylindrical prosthesis made from decellularized equine pericardium in the mitral position...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28509650/update-on-the-use-of-cyclooxygenase-2-selective-nonsteroidal-anti-inflammatory-drugs-in-horses
#19
Amanda Ziegler, Callie Fogle, Anthony Blikslager
Nonsteroidal anti-inflammatory drugs work through inhibition of cyclooxygenase (COX) and are highly effective for the treatment of pain and inflammation in horses. There are 2 clinically relevant isoforms of COX. Cyclooxygenase-1 is constitutively expressed and is considered important for a variety of physiologic functions, including gastrointestinal homeostasis. Thus, NSAIDs that selectively inhibit COX-2 while sparing COX-1 may be associated with a lower incidence of adverse gastrointestinal effects. Various formulations of firocoxib, a COX-2-selective NSAID, labeled for use in horses are available in the United States...
June 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28508595/silver-nanoparticle-deposited-implants-to-treat-osteomyelitis
#20
Samit Kumar Nandi, Anish Shivaram, Susmita Bose, Amit Bandyopadhyay
In this study, electrolytically deposited strongly adherent silver nanoparticles on stainless-steel (SS) implants were used for in situ osteomyelitis treatment. Samples were heat treated to enhance adhesion of silver on 316 L SS. Ex vivo studies were performed to measure silver-release profiles from the 316 L SS screws inserted in equine cadaver bones. No change in the release profiles of silver ions were observed in vitro between the implanted screws and the control. In vivo studies were performed using osteomyelitic rabbit model with 3 mm diameter silver-deposited 316 L SS pins at two different doses of silver: high and low...
May 15, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
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