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https://www.readbyqxmd.com/read/28922404/eco-epidemiological-analysis-of-rickettsial-seropositivity-in-rural-areas-of-colombia-a-multilevel-approach
#1
Juan C Quintero V, Luis E Paternina T, Alexander Uribe Y, Carlos Muskus, Marylin Hidalgo, Juliana Gil, Astrid Vanessa Cienfuegos G, Lisardo Osorio Q, Carlos Rojas A
Rickettsiosis is a re-emergent infectious disease without epidemiological surveillance in Colombia. This disease is generally undiagnosed and several deadly outbreaks have been reported in the country in the last decade. The aim of this study is to analyze the eco-epidemiological aspects of rickettsial seropositivity in rural areas of Colombia where outbreaks of the disease were previously reported. A cross-sectional study, which included 597 people living in 246 households from nine hamlets in two municipalities of Colombia, was conducted from November 2015 to January 2016...
September 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28922395/an-analysis-of-equine-round-pen-training-videos-posted-online-differences-between-amateur-and-professional-trainers
#2
Erin Kydd, Barbara Padalino, Cathrynne Henshall, Paul McGreevy
Natural Horsemanship is popular among many amateur and professional trainers and as such, has been the subject of recent scientific enquiry. One method commonly adopted by Natural Horsemanship (NH) trainers is that of round pen training (RPT). RPT sessions are usually split into a series of bouts; each including two phases: chasing/flight and chasing offset/flight offset. However, NH training styles are heterogeneous. This study investigated online videos of RPT to explore the characteristics of RPT sessions and test for differences in techniques and outcomes between amateurs and professionals (the latter being defined as those with accompanying online materials that promote clinics, merchandise or a service to the public)...
2017: PloS One
https://www.readbyqxmd.com/read/28921680/measurement-of-urinary-concentrations-of-the-mycotoxins-zearalenone-and-sterigmatocystin-as-biomarkers-of-exposure-in%C3%A2-mares
#3
M Takagi, S Uno, E Kokushi, F Sato, Mmp Wijayagunawardane, J Fink-Gremmels
Mycotoxins may affect animal health, including reproduction. Little is known about the clinical relevance of exposure of horses to contaminated feed. This study aimed at (i) monitoring the levels of the mycotoxins zearalenone (ZEN), with its metabolites α- and β-zearalenol (α- and β-ZOL), and sterigmatocystin (STC) in urine samples from thoroughbred mares in Japan and (ii) relating these findings to the potential effects on reproductive efficacy of breeding mares. Sixty-three urine samples of breeding mares from 59 breeding farms were used...
September 18, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28921663/insect-bite-hypersensitivity-in-horses-is-associated-with-airway-hyperreactivity
#4
S Lanz, A Brunner, C Graubner, E Marti, V Gerber
BACKGROUND: Genetic and epidemiologic evidence suggests that in horses, as in other species, different manifestations of hypersensitivity may occur together. HYPOTHESIS: Horses affected with insect bite hypersensitivity (IBH) show airway hyperreactivity (AH) to inhaled histamine, even in the absence of overt clinical signs of equine asthma (EA). ANIMALS: Twenty-two healthy controls (group C), 24 horses suffering from IBH alone (group IBH), and 23 horses suffering from IBH and EA (group IBH/EA)...
September 18, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28921609/biomarkers-for-equine-joint-injury-and-osteoarthritis
#5
REVIEW
C Wayne McIlwraith, Christopher E Kawcak, David D Frisbie, Christopher B Little, Peter D Clegg, Mandy J Peffers, Morten A Karsdal, Stina Ekman, Sheila Laverty, Richard A Slayden, Linda J Sandell, L Stefan Lohmander, Virginia B Kraus
We report the results of a symposium aimed at identifying validated biomarkers that can be used to complement clinical observations for diagnosis and prognosis of joint injury leading to equine osteoarthritis (OA). Biomarkers might also predict pre-fracture change that could lead to catastrophic bone failure in equine athletes. The workshop was attended by leading scientists in the fields of equine and human musculoskeletal biomarkers to enable cross-disciplinary exchange and improve knowledge in both. Detailed proceedings with strategic planning was written, added to, edited and referenced to develop this manuscript...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28920797/description-of-gastric-ulcers-and-of-their-suspected-associated-risk-factors-in-deceased-wild-equids-at-the-r%C3%A3-serve-africaine-de-sigean-france-2010-2016
#6
Benjamin Lamglait, Marielle Vandenbunder-Beltrame, Elodie Trunet, Karin Lemberger
Gastric ulcers are common in domestic horses and foals, affecting at least 90% of unmedicated racehorses in active training. Despite these high prevalences in domestic horses, literature about this condition in wild equids is almost nonexistent. The presence of gastric ulcers was evaluated at necropsy in six species of wild equids that died at the Réserve Africane de Sigean, a safari park in the south of France from 2010 to 2016. Among the 55 individuals that died during that period, a description of the gastric mucosa was available in 82% (45/55) of cases...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920785/detomidine-and-butorphanol-for-standing-sedation-in-a-range-of-zoo-kept-ungulate-species
#7
Tim Bouts, Joanne Dodds, Karla Berry, Abdi Arif, Polly Taylor, Andrew Routh, Frank Gasthuys
General anesthesia poses risks for larger zoo species, like cardiorespiratory depression, myopathy, and hyperthermia. In ruminants, ruminal bloat and regurgitation of rumen contents with potential aspiration pneumonia are added risks. Thus, the use of sedation to perform minor procedures is justified in zoo animals. A combination of detomidine and butorphanol has been routinely used in domestic animals. This drug combination, administered by remote intramuscular injection, can also be applied for standing sedation in a range of zoo animals, allowing a number of minor procedures...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920408/characterization-of-gene-expression-and-genetic-variation-of-horse-errfi1-in-thoroughbreds
#8
Jae-Young Choi, Hyun-Jun Jang, Jeong-Woong Park, Jae-Don Oh, Donghyun Shin, Nam Young Kim, Jin Hyeog Oh, Ki-Duk Song, Byung-Wook Cho
Objective: This study aimed to test the expression patterns of ERBB receptor feedback inhibitor 1 (ERRFI1) before and after exercise and the association of non-synonymous single-nucleotide polymorphisms (nsSNPs) of horse ERRFI1 with racing traits in Thoroughbreds. Methods: We performed bioinformatics and gene expression analyses for horse ERRFI1. Transcription factor (TF) binding sites in the 5'-regulatory region of this gene were identified through PROMO. A general linear model (GLM) was used to detect the association between the nsSNP (LOC42830758 A to G) and race performance...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28919511/viscoelastic-properties-of-%C3%AE-keratin-fibers-in-hair
#9
Yang Yu, Wen Yang, Marc André Meyers
Considerable viscoelasticity and strain-rate sensitivity are a characteristic in α-keratin fibers, which can be considered a biopolymer. The understanding of viscoelasticity is an important part to the knowledge of the overall mechanical properties of these biological materials. Here, horse and human hairs are examined to analyze the sources of this response. The dynamic mechanical response of α-keratin fibers over a range of frequencies and temperatures is analyzed using a dynamic mechanical analyzer. The α-keratin fibers behave more elastically at higher frequencies while they become more viscous at higher temperatures...
September 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28919435/ultrasensitive-and-rapid-immuno-detection-of-human-ige-anti-therapeutic-horse-sera-using-an-electrochemical-immunosensor
#10
Isis C Prado, André L A Souza, David W Provance-Jr, Ricardo J Cassella, Salvatore G De-Simone
Antivenom allergy disease mediated by patient IgE is an important public health care concern. To improve detection of hypersensitive individuals prior to passive antibody therapy, an amperometric immunosensor was developed to detect reactive human IgE. Whole horse IgG3 (hoIgG3) was immobilized onto the surface of carbon or gold screen-printed electrodes through a cross-linking solution of glutaraldehyde on a chitosan film. Sera from persons with a known allergic response to hoIgG3 or non-allergic individuals was applied to the sensor...
September 14, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28918950/power-transfer-to-a-human-during-an-electric-eel-s-shocking-leap
#11
Kenneth C Catania
Electric eels have been the subject of investigation and curiosity for centuries [1]. They use high voltage to track [2] and control [3] prey, as well as to exhaust prey by causing involuntary fatigue through remote activation of prey muscles [4]. But their most astonishing behavior is the leaping attack, during which eels emerge from the water to directly electrify a threat [5, 6]. This unique defense has reportedly been used against both horses [7] and humans [8]. Yet the dynamics of the circuit that develops when a living animal is contacted and the electrical power transmitted to the target have not been directly investigated...
September 8, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28917388/improvised-hand-injury-treatment-using-traditional-veterinary-medicine-in-ethiopia
#12
Raf Aerts, Eva J J November, Maissa Rayyan
In remote wilderness environments, local people with traditional knowledge of medicinal plants are potentially important first-line health care providers. We present a case of a 31-year-old man who fell off a horse while trekking through a remote mountain landscape in Ethiopia and sustained blunt force trauma to the hand. A local mountain hut keeper examined the patient's hand and used heated leaves of the succulent plant Kalanchoe petitiana to treat a suspected metacarpal fracture. As first responder in a low-resource setting, the hut keeper relied on his traditional knowledge of ethnoveterinary medicine to improvise a treatment for a human injury in a remote mountain environment...
September 13, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28917303/the-evaluation-of-gm6-based-elisa-and-ict-as-diagnostic-methods-on-a-mongolian-farm-with-an-outbreak-of-non-tsetse-transmitted-horse-trypanosomosis
#13
Batdorj Davaasuren, Tovuu Amgalanbaatar, Simon Peter Musinguzi, Keisuke Suganuma, Davaajav Otgonsuren, Ehab Mossaad, Sandagdorj Narantsatsral, Banzragch Battur, Badgar Battsetseg, Xuenan Xuan, Noboru Inoue
Trypanosoma equiperdum, which is the etiological agent of dourine, spreads through sexual intercourse in equines. Dourine (T. equiperdum) has been reported in Mongolia, where it is considered an economically important disease of horses. T. evansi has also been reported in Mongolian domestic animals. The objective of this study was to evaluate the potential application of recombinant T. evansi GM6 (rTeGM6-4r)-based diagnostic methods on a farm with an outbreak of non-tsetse transmitted horse trypanosomosis. Ninety-seven percent homology was found between the amino acid sequences of T...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28917300/epidemiologic-studies-on-theileria-equi-infections-for-grazing-horses-in-ili-of-xinjiang-province
#14
REVIEW
Yang Zhang, Bayin Chahan, Shifang Liu, Ruiqi Song, Yongchang Li, Huercha, Qingyong Guo, Hui Wu, Yutao Zhu
In order to found the epidemiological situation of T. equi in the horse herds in Ili Prefecture of Xinjiang Province, 723 blood samples collected from 4 counties and districts were test for T. equi through microscopic detection and Polymerase chain Reaction (PCR). In the result, we found that the 295 of 723 blood samples (40.8%) were positive for T. equi infection. The results showed that the choosed counties have a varying degrees infection. To our knowledge, this is the first time that we detected T. equi infection using the molecular techniques from Ili in Xinjiang Uygur Autonomous region...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28917093/molecular-cloning-and-functional-expression-of-the-k-channel-kv7-1-and-the-regulatory-subunit-kcne1-from-equine-myocardium
#15
Philip J Pedersen, Kirsten B Thomsen, Jon B Flak, Maria A Tejada, Frank Hauser, Dagmar Trachsel, Rikke Buhl, Theodore Kalbfleisch, Michael Scott DePriest, James N MacLeod, Kirstine Calloe, Dan A Klaerke
BACKGROUND: The voltage-gated K(+)-channel KV7.1 and the subunit KCNE1, encoded by the KCNQ1 and KCNE1 genes, respectively, are responsible for termination of the cardiac action potential. In humans, mutations in these genes can predispose patients to arrhythmias and sudden cardiac death (SCD). AIM: To characterize equine KV7.1/KCNE1 currents and compare them to human KV7.1/KCNE1 currents to determine whether KV7.1/KCNE1 plays a similar role in equine and human hearts...
September 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28916000/development-phenotype-and-function-of-non-conventional-b-cells
#16
REVIEW
J M B Prieto, M J B Felippe
Three populations of B cells develop in fetal life: B1, B2 and marginal zone B cells. B1 cells play important roles in innate immunity in contrast to B2 cells that perform the conventional roles in adaptive immunity. B1 cells were first identified in mice based on their expression of CD5 and spontaneous secretion of IgM. B1 cells were subsequently found to have unique developmental, phenotype, tissue distribution, and functional characteristics that differ from B2 cells. These phenotypic and functional differences allow B1 cells to play important roles in immunity and homeostasis, but be implicated in autoimmune disease...
October 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28915407/differentiation-and-sarcomere-formation-in-skeletal-myocytes-directly-prepared-from-human-induced-pluripotent-stem-cells-using-a-sphere-based-culture
#17
Saowanee Jiwlawat, Eileen Lynch, Jennifer Glaser, Ivy Smit-Oistad, Jeremy Jeffrey, Jonathan M Van Dyke, Masatoshi Suzuki
Human induced-pluripotent stem cells (iPSCs) are a promising resource for propagation of myogenic progenitors. Our group recently reported a unique protocol for the derivation of myogenic progenitors directly (without genetic modification) from human pluripotent cells using free-floating spherical culture. Here we expand our previous efforts and attempt to determine how differentiation duration, culture surface coatings, and nutrient supplements in the medium influence progenitor differentiation and formation of skeletal myotubes containing sarcomeric structures...
August 1, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28915240/improved-reliability-of-serological-tools-for-the-diagnosis-of-west-nile-fever-in-horses-within-europe
#18
Cécile Beck, Steeve Lowenski, Benoit Durand, Céline Bahuon, Stéphan Zientara, Sylvie Lecollinet
West Nile Fever is a zoonotic disease caused by a mosquito-borne flavivirus, WNV. By its clinical sensitivity to the disease, the horse is a useful sentinel of infection. Because of the virus' low-level, short-term viraemia in horses, the primary tools used to diagnose WNV are serological tests. Inter-laboratory proficiency tests (ILPTs) were held in 2010 and 2013 to evaluate WNV serological diagnostic tools suited for the European network of National Reference Laboratories (NRLs) for equine diseases. These ILPTs were designed to evaluate the laboratories' and methods' performances in detecting WNV infection in horses through serology...
September 15, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28915008/h2s-activated-drug-release-from-protein-cages
#19
Weijian Chen, Yajie Zhang, Xiao Li, Hong Chen, Jian Sun, Fude Feng
We took advantage of gasotransmitter H2S as a chemical reaction-based trigger for controlled release of doxorubicin which is pre-coordinated by copper ions and enclosed in horse spleen apoferritin. The nanocomposite is stable at physiological pH and temperature before H2S activation. The drug release strategy avoids disassembly of protein shells and is controllable by the strong affinity of sulfide with copper ions. The in vitro cytotoxicity assay indicates the antitumor effect of doxorubicin toward tumor cells could be achievable by H2S activation...
September 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28911845/age-associated-changes-in-peripheral-airway-smooth-muscle-mass-of-healthy-horses
#20
M Bullone, M Pouyet, J-P Lavoie
Peripheral airway smooth muscle (ASM) mass is increased in severe equine asthma, but no information is available on age related changes in ASM. In this study, peripheral ASM dimensions were determined in healthy horses of different ages. The thickness of the peripheral ASM layer was constant in horses of different ages, but ASM occupied a greater proportion of the inner wall area in young horses compared to older horses. This finding suggests that equine airways experience a decrease in the relative abundance of ASM with age...
August 2017: Veterinary Journal
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