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The potential role of miRNAs and regulation of their expression in the development of mare endometrial fibrosis.
Scientific reports    September 24, 2023   Volume 13, Issue 1 15938 doi: 10.1038/s41598-023-42149-3
Wójtowicz A, Molcan T, Lukasik K, Żebrowska E, Pawlina-Tyszko K, Gurgul A, Szmatoła T, Bugno-Poniewierska M, Ferreira-Dias G, Skarzynski DJ....Mare endometrial fibrosis (endometrosis), is one of the main causes of equine infertility. Despite the high prevalence, both ethology, pathogenesis and the nature of its progression remain poorly understood. Recent studies have shown that microRNAs (miRNAs) are important regulators in multiple cellular processes and functions under physiological and pathological circumstances. In this article, we reported changes in miRNA expression at different stages of endometrosis and the effect of transforming growth factor (TGF)-β1 on the expression of the most dysregulated miRNAs. We identified 1, 26, ...
Associations between postrace atrial fibrillation and measures of performance, racing history and airway disease in horses.
Journal of veterinary internal medicine    September 23, 2023   Volume 37, Issue 6 2573-2583 doi: 10.1111/jvim.16878
Nath LC, Elliott A, La Gerche A, Weir J, Forbes G, Thomas G, Franklin S.Atrial fibrillation (AF) is the most common performance limiting arrhythmia in racehorses. High dose exercise and airway disease promote AF in humans. Few studies have investigated epidemiological factors associated with AF in horses. Objective: Explore variables relating to performance, exercise volume and postrace endoscopic findings in horses with AF. Methods: A total of 164 horses with poor race performance and postrace AF were compared to 321 horses with poor performance without AF (PP) and 314 horses performing to expectation (TE). Methods: Horse-level and race-level variables for horses...
Equine non-septic tenosynovitis: A systematic literature review of site-specific pathological lesions, outcomes and surgical complications.
Equine veterinary journal    September 21, 2023   doi: 10.1111/evj.14000
Caspers MK, Gier CJ, Reesink HL.Non-septic tenosynovitis is a clinically relevant and often performance limiting musculoskeletal injury in the horse. Objective: To review the published literature to determine which tendon sheaths are commonly affected by non-septic tenosynovitis and to describe the most frequently reported pathological lesions, outcomes, and surgical complications in equine non-septic tenosynovitis. Methods: Systematic review. Methods: Literature searches were conducted in July 2021 from the online search engines PubMed, Scopus, Web of Science Core, VetMed Resource and ProQuest Theses & Dissertations. Th...
Acupuncture has potential in managing axial stiffness in steeplechase racehorses: a blinded prospective randomized preliminary study.
Journal of the American Veterinary Medical Association    September 21, 2023   Volume 261, Issue 12 1-8 doi: 10.2460/javma.23.04.0197
Terlinden A, Szymkowiak M, Jonville E, Hatrisse C, De Azevedo E, Coudry V, Denoix JM, Pilot-Storck F, Desquilbet L, Bertoni L.Evaluate the short-term effects of acupuncture on the dynamic manifestations of axial stiffness in steeplechase racehorses. 12 steeplechase racehorses presenting signs of axial stiffness during training. Horses were randomly assigned to either an acupuncture treatment by an experienced certified acupuncturist (n = 6) or no treatment as negative controls (6). The horses' locomotion was evaluated during training before treatment (D0) and 7 (D7) and 14 (D14) days after by their rider and trainer through a questionnaire. Additionally, the improvement of their dorsal flexibility 2 days after treatm...
The localization of centromere protein A is conserved among tissues.
Communications biology    September 21, 2023   Volume 6, Issue 1 963 doi: 10.1038/s42003-023-05335-7
Cappelletti E, Piras FM, Sola L, Santagostino M, Petersen JL, Bellone RR, Finno CJ, Peng S, Kalbfleisch TS, Bailey E, Nergadze SG, Giulotto E.Centromeres are epigenetically specified by the histone H3 variant CENP-A. Although mammalian centromeres are typically associated with satellite DNA, we previously demonstrated that the centromere of horse chromosome 11 (ECA11) is completely devoid of satellite DNA. We also showed that the localization of its CENP-A binding domain is not fixed but slides within an about 500 kb region in different individuals, giving rise to positional alleles. These epialleles are inherited as Mendelian traits but their position can move in one generation. It is still unknown whether centromere sliding occu...
Positron emission tomography assessment of metacarpal/metatarsal condylar fractures post surgical repair: Prospective study in 14 racehorses.
Veterinary surgery : VS    September 21, 2023   Volume 53, Issue 1 131-142 doi: 10.1111/vsu.14031
Bergstrom TC, Spriet M, O'Brion J, Carpenter R.To assess 18F-sodium fluoride (18F-NaF) positron emission tomography (PET) findings associated with metacarpal/metatarsal condylar fractures at the time of fracture repair and through healing. Methods: Prospective descriptive study. Methods: Fourteen Thoroughbred racehorses. Methods: 18F-NaF PET was performed within 4 days of surgical metacarpal/metatarsal condylar fracture repair, on both the injured and contralateral limb. Follow-up PET scans were offered at 3- and 5-months post fracture repair. Areas of abnormal uptake were assessed using a previously validated grading system. Results: Ei...
Mesenchymal Stem Cells Isolated from Equine Hair Follicles Using a Method of Air-Liquid Interface.
Stem cell reviews and reports    September 21, 2023   Volume 19, Issue 8 2943-2956 doi: 10.1007/s12015-023-10619-w
Equine mesenchymal stem cells (MSC) of various origins have been identified in horses, including MSCs from the bone marrow and adipose tissue. However, these stem cell sources are highly invasive in sampling, which thereby limits their clinical application in equine veterinary medicine. This study presents a novel method using an air-liquid interface to isolate stem cells from the hair follicle outer root sheath of the equine forehead skin. These stem cells cultured herewith showed high proliferation and asumed MSC phenotype by expressing MSC positive biomarkers (CD29, CD44 CD90) while not e...
Epidemiology and Control of Rabies in Cattle and Equines in Rondônia State, a Brazilian’s Legal Amazon Area.
Animals : an open access journal from MDPI    September 20, 2023   Volume 13, Issue 18 doi: 10.3390/ani13182974
Sodré DNA, Rossi GAM, Mathias LA, de Andrade Belo MA.Rabies is a fatal neglected tropical zoonosis, and its significance for domestic herbivores in the rural cycle is probably associated with rainforest deforestation, livestock, and agricultural expansion. This epidemiological survey aimed to study the occurrence of rabies in bovines and equines in the state of Rondônia, located in the Brazilian's Legal Amazon, between the years 2002 and 2021, correlating these findings with the prophylactic strategies adopted by the local sanitary agency for rabies control. During this period, 201 cases were observed in bovines and 23 in equines. A downward tr...
Prevalence of Neospora caninum as an etiologic agent of animal abortion in Kurdistan Region of Iraq.
Polish journal of veterinary sciences    September 20, 2023   Volume 26, Issue 3 349-357 doi: 10.24425/pjvs.2023.145039
Mohammed RR, Tavassoli M, Sidiq KR, Esmaeilnejad B.Neospora caninum ( N. caninum) is the etiologic agent of neosporosis, a potential cause of severe reproductive disorders in cattle, small ruminants, equines, wild animals and canids across the world. The current study is performed to estimate molecular prevalence of N. caninum in small ruminants and equines that had abortion in Kurdistan region of Iraq. A total of 64 tissue samples (brain, placenta, heart, lung and liver) were taken from aborted foetuses, with a total of 122 dam blood samples taken from 63 sheep, 39 goats, 12 mares and 8 jennies in local breed fields. Besides, a risk factor an...
Temporomandibular joint biomechanics and equine incisor occlusal plane maintenance.
Frontiers in bioengineering and biotechnology    September 20, 2023   Volume 11 1249316 doi: 10.3389/fbioe.2023.1249316
Sterkenburgh TR, Hartl B, Peham C, Nowak M, Kyllar M, Kau S.In equine dentistry, the physiological incisor occlusal surface is visually perceived as a plane with a distinct inclination to the head's coronal plane, extending rostro-ventrally to caudo-dorsally. To better understand the formation of this inclined plane and its connection to dental wear, we investigated the hypothesis that it arises from masticatory movements and the considerable distance between mandibular articular heads and the incisor occlusal surfaces, acting as the three points of support for the mandibles. Leveraging data from a large-scale clinical study involving static and dynami...
Helminth infection in horses – a cross-sectional study from stables in Lower Silesia (Poland).
Polish journal of veterinary sciences    September 20, 2023   Volume 26, Issue 3 401-407 doi: 10.24425/pjvs.2023.145046
Hildebrand W, Zielińska P, Hildebrand J, Zaleśny G.Parasitosis in horses may be uncontrolled and expose breeders and owners to serious financial losses or, possibly, to the loss of animals. Therefore, the prevention and monitoring of the development of parasitic diseases should play an important role in the breeding process. The aim of this study was to confirm the influence of factors such as age, breed, herd size, deworming program, and type of anthelmintics, on the prevalence and intensity of parasites (helminths) in domestic horses in Lower Silesia. The study was carried out between August and November of 2020. The samples of horse feces w...
Selected Acoustic Frequencies Have a Positive Impact on Behavioural and Physiological Welfare Indicators in Thoroughbred Racehorses.
Animals : an open access journal from MDPI    September 20, 2023   Volume 13, Issue 18 2970 doi: 10.3390/ani13182970
Gueguen L, Henry S, Delbos M, Lemasson A, Hausberger M.(1) Background: Since antiquity, it is considered that sounds influence human emotional states and health. Acoustic enrichment has also been proposed for domestic animals. However, in both humans and animals, effects vary according to the type of sound. Human studies suggest that frequencies, more than melodies, play a key role. Low and high frequencies, music tuning frequency and even EEG slow waves used for 'neurofeedback' produce effects. (2) Methods: We tested the possible impact of such pure frequencies on racehorses' behavior and physiology. A commercial non-audible acoustic stimulus, co...
Efficacy Evaluation of a Commercial Formulation With Duddingtonia Flagrans in Equine Gastrointestinal Nematodes.
Journal of equine veterinary science    September 20, 2023   Volume 131 104930 doi: 10.1016/j.jevs.2023.104930
Nunes GT, Corrêa DC, Chitolina MB, da Rosa G, Pereira RCDF, Cargnelutti JF, Vogel FSF.The indiscriminate use of antiparasitics for the treatment of helminths in horses has caused the ineffectiveness of commonly used chemical active principles, therefore, new alternatives such as the use of helminthophagous fungi have been studied. In this context, this study aimed to evaluate the in vitro efficacy of the commercial formulation Bioverm, composed of the fungus Duddingtonia flagrans strain AC001, in the reduction of gastrointestinal nematode larvae in equine feces. In coproculture, the genus Cyathostomum sp. was the most prevalent in the analyzed samples. The commercial formulatio...
Use of confocal microscopy and intracytoplasmic sperm injection (ICSI) to assess viability of equine oocytes from young and old mares after vitrification.
Journal of assisted reproduction and genetics    September 19, 2023   Volume 40, Issue 11 2565-2576 doi: 10.1007/s10815-023-02935-4
Maclellan LJ, Albertini DF, Stokes JE, Carnevale EM.The impact of vitrification on oocyte developmental competence as a function of donor age remains an important issue in assisted reproductive technologies (ARTs). Methods: Equine germinal vesicle (GV) or metaphase II (M(II) oocytes were vitrified using the Cryotop® method. Spindle organization and chromosome alignment were evaluated from confocal imaging data sets of in vivo (IVO) or in vitro (IVM) matured oocytes subjected to vitrification or not. Intracytoplasmic sperm injection (ICSI) from the same groups was used to assess developmental potential. Results: An increase in chromosome misali...
Macrophage phenotype impacts in vitro equine intrasynovial deep digital flexor tenocyte matrix metalloproteinase gene expression and secretion.
American journal of veterinary research    September 19, 2023   Volume 84, Issue 12 ajvr.23.05.0106 doi: 10.2460/ajvr.23.05.0106
Cooper HE, Bowlby C, Long S, Durgam SS.To investigate matrix metalloproteinase (MMP) and their inhibitors tissue inhibitor matrix metalloproteinase (TIMP) gene expression and secretion during equine deep digital flexor tendon (DDFT) tenocyte and macrophage (undifferentiated, proinflammatory, and regulatory) co-culture. Methods: Third passage DDF tenocytes and donor-matched macrophages differentiated from peripheral blood CD14+ monocytes from 5 healthy horses ages 9-11 years, euthanized for reasons unrelated to musculoskeletal conditions. Methods: Passage 3 DDT tenocyte aggregate cultures were co-cultured with undifferentiated (cont...
Effect of Sugar Beet Pulp on the Composition and Predicted Function of Equine Fecal Microbiota.
Biology    September 19, 2023   Volume 12, Issue 9 1254 doi: 10.3390/biology12091254
Ford T, McAdams ZL, Townsend KS, Martin LM, Johnson PJ, Ericsson AC.The purpose of this study is to determine the effect of the partial replacement of dietary hay with sugar beet pulp (SBP) on the composition and predicted function of the fecal microbiota of healthy adult horses. Fecal samples were collected daily for 12 days from six adult horses after removal from pasture, including a five-day acclimation period, and a seven-day period following the introduction of SBP into their diet, and compared to six untreated horses over a comparable period. Fecal DNA was subjected to 16S rRNA amplicon sequencing and a longitudinal analysis was performed comparing the ...
Of Horses, Zebras, and the Diagnostic Process.
The Medical clinics of North America    September 19, 2023   Volume 108, Issue 1 xv-xvi doi: 10.1016/j.mcna.2023.09.001
Ende J.No abstract available
Molecular and Cellular Evaluation of Horses With Summer Pasture Associated Asthma Syndrome.
Journal of equine veterinary science    September 19, 2023   Volume 131 104928 doi: 10.1016/j.jevs.2023.104928
Sad EP, Hess TM, Santos HA, Lessa DAB, Botteon PTL.Equine asthma is an airway disease that affects a large number of horses annually leading to considerable economic losses in the horse industry. Despite advances in research in this area, there is still a lack of information on its etiology and molecular characterization in pasture associated asthma. The objective of the current study was to characterize the inflammatory disease of lower airways in horses maintained on pasture through cytologic and immunologic profile during the summer in a tropical environment by analysis of the gene expression of Th1 cytokines (IFN- λ, IL-8), Th2 cytokines ...
Topical nonsteroidal anti-inflammatory drugs.
CMAJ : Canadian Medical Association journal = journal de l\'Association medicale canadienne    September 19, 2023   Volume 195, Issue 36 E1231 doi: 10.1503/cmaj.230578
Bhat C, Rosenberg H, James D.No abstract available
Topical nonsteroidal anti-inflammatory drugs.
CMAJ : Canadian Medical Association journal = journal de l\'Association medicale canadienne    September 19, 2023   Volume 195, Issue 36 E1231 doi: 10.1503/cmaj.230578
Bhat C, Rosenberg H, James D.No abstract available
Non-invasive estimation of in vivo optical properties and hemodynamic parameters of domestic animals: a preliminary study on horses, dogs, and sheep.
Frontiers in veterinary science    September 18, 2023   Volume 10 1243325 doi: 10.3389/fvets.2023.1243325
Frabasile L, Amendola C, Buttafava M, Chincarini M, Contini D, Cozzi B, De Zani D, Guerri G, Lacerenza M, Minero M, Petrizzi L, Qiu L, Rabbogliatti V....Biosensors applied in veterinary medicine serve as a noninvasive method to determine the health status of animals and, indirectly, their level of welfare. Near infrared spectroscopy (NIRS) has been suggested as a technology with this application. This study presents preliminary time domain NIRS measurements of optical properties (absorption coefficient, reduced scattering coefficient, and differential pathlength factor) and hemodynamic parameters (concentration of oxygenated hemoglobin, deoxygenated hemoglobin, total hemoglobin, and tissue oxygen saturation) of tissue domestic animals, specif...
Assessment of the Palatability and Acceptability of Hempseed Meal Pellets in Horses Compared to Mainstream Feedstuffs.
Journal of equine veterinary science    September 18, 2023   Volume 131 104929 doi: 10.1016/j.jevs.2023.104929
Springer RW, Mason AC, Cross TD, Guay KA, Raub RH, Wellmann KB, Jones TN.With greater availability of hemp (Cannabis sativa L.) due to recent legislation, hempseed meal (HSM) should be evaluated as a potential feedstuff for livestock. The study objective was to evaluate the palatability of HSM in horses. Trial 1 used a modified 3 × 3 Latin Square design utilizing three geldings and three mares. Feeding periods (6d) consisted of two feedings/d with a washout phase (3d) before each treatment phase (3d). During treatment, horses were offered soybean meal pellets (SBM), rice bran pellets (RBP), or beet pulp pellets (BPP) in one bucket (500 g) and HSM in a second buc...
Genetic analysis of geometric morphometric 3D visuals of French jumping horses.
Genetics, selection, evolution : GSE    September 18, 2023   Volume 55, Issue 1 63 doi: 10.1186/s12711-023-00837-8
Ricard A, Crevier-Denoix N, Pourcelot P, Crichan H, Sabbagh M, Dumont-Saint-Priest B, Danvy S.For centuries, morphology has been the most commonly selected trait in horses. A 3D video recording enabled us to obtain the coordinates of 43 anatomical landmarks of 2089 jumping horses. Generalized Procrustes analysis provided centered and scaled coordinates that were independent of volume, i.e., centroid size. Genetic analysis of these coordinates (mixed model; 17,994 horses in the pedigree) allowed us to estimate a variance-covariance matrix. New phenotypes were then defined: the "summarized shapes". They were obtained by linear combinations of Procrustes coordinates with, as coefficients,...
MicroRNAs in equine Endometritis: A review of pathophysiology and molecular insights for diagnostic and therapeutic strategies.
International immunopharmacology    September 17, 2023   Volume 124, Issue Pt B 110949 doi: 10.1016/j.intimp.2023.110949
Asif S, Umar T, Umar Z, Jamil H, Feng H, Zhang P, Umer S.Endometritis plays an important role in mare infertility. Certain infectious agents interfere with the innate immune system of endometrium, causing a systemic inflammatory response that lasts for a long time and circulates via the blood or cellular degeneration, leading to endometritis due to bacterial endotoxins. Different small, non-coding RNA molecules are involved in many biological functions. For instance, microRNAs (miRNAs) are involved in the post-transcriptional regulation of gene expression. These miRNAs are important regulators of gene expression, primarily via inhibiting transcripti...
CRISPR/Cas9-Mediated Targeting of BPV-1-Transformed Primary Equine Sarcoid Fibroblasts.
Viruses    September 17, 2023   Volume 15, Issue 9 1942 doi: 10.3390/v15091942
Monod A, Koch C, Jindra C, Haspeslagh M, Howald D, Wenker C, Gerber V, Rottenberg S, Hahn K.Equine sarcoids (EqS) are fibroblast-derived skin tumors associated with bovine papillomavirus 1 and 2 (BPV-1 and -2). Based on Southern blotting, the BPV-1 genome was not found to be integrated in the host cell genome, suggesting that EqS pathogenesis does not result from insertional mutagenesis. Hence, CRISPR/Cas9 implies an interesting tool for selectively targeting BPV-1 episomes or genetically anchored suspected host factors. To address this in a proof-of-concept study, we confirmed the exclusive episomal persistence of BPV-1 in EqS using targeted locus amplification (TLA). To investigate...
The Effect of Inhaled Ciclesonide Treatment on Systemic Markers of Immune Function in Horses.
Journal of equine veterinary science    September 17, 2023   Volume 130 104925 doi: 10.1016/j.jevs.2023.104925
Page AE, Johnson M, Parker JL, Jacob O, Swan M, Adam E.The use of dexamethasone to control equine asthma is a common and effective treatment. Although short-term systemic dexamethasone treatment has not been shown to induce systemic immunosuppression in the horse, the goal of this study was to determine whether inhaled ciclesonide, an FDA-approved drug for the treatment of equine asthma, exerts any systemic immunosuppressive effects when compared to dexamethasone-treated and untreated horses. Eighteen light, mixed breed horses, ranging in age from 3 to 8 years of age, were used for this study and randomly assigned to one of three treatment groups:...
An Investigation of the Suitability of Viscosity Detection in Estimating IgG Content in Mare Colostrum.
Journal of equine veterinary science    September 16, 2023   Volume 131 104926 doi: 10.1016/j.jevs.2023.104926
Schneider F, Sievert M, Buettner K, Wehrend A.An adequate supply of colostrum is important for the prevention of hypogammaglobulinaemia in foals. In addition to the quantity of colostrum consumed and the time of consumption, the quality of the colostrum, the immunoglobulin (Ig) G concentration, is crucial. The aim of this study was to determine whether the viscosity of equine colostrum was a suitable estimate of IgG concentration. IgG content of colostrum was measured by ELISA and viscosity directly measured with a cone plate viscometer and indirectly assessed with a funnel. Analysis of 56 colostrum samples obtained from 40 mares at diffe...
Low progesterone concentration in early pregnancy is detrimental to conceptus development and pregnancy outcome in horses.
Animal reproduction science    September 16, 2023   Volume 257 107334 doi: 10.1016/j.anireprosci.2023.107334
Wagner LH, Aurich J, Melchert M, Okada CTC, Gautier C, Kaps M, Claaßen S, Aurich C.High progesterone concentrations in the early luteal phase support pregnancy, whereas subphysiological progesterone concentrations delay embryonic development at least until placentation. In this study, fetal growth and development of pregnancy was investigated in pregnancies with prostaglandin F-induced low progesterone concentrations (PGF) in the early luteal phase and control pregnancies (CON) in the same mares (n = 12). Mares were inseminated and in PGF pregnancies received the prostaglandin F analogue cloprostenol (62.5 µg) on days 0-3 after ovulation to induce subphysiological proges...
Phenotypic and Genetic Study of the Presence of Hair Whorls in Pura Raza Español Horses.
Animals : an open access journal from MDPI    September 16, 2023   Volume 13, Issue 18 2943 doi: 10.3390/ani13182943
Encina A, Ligero M, Sánchez-Guerrero MJ, Rodríguez-Sainz de Los Terreros A, Bartolomé E, Valera M.Hair whorls are a hereditary feature in horses that may be associated with temperament and coat color. Hair whorls are described as changes in the hair pattern and may take various forms, such as circular and linear whorls. We first carried out a frequency analysis of hair whorls (circular and linear). Next, a Generalized Non-Linear Model was computed to assess the significance of some potential influencing factors, and a genetic parameter estimation was performed. ENDOG software v4.8 was used to estimate the inbreeding coefficient of all the animals analyzed. It was more common to find horses...
Pro-Inflammatory Cytokine Priming and Purification Method Modulate the Impact of Exosomes Derived from Equine Bone Marrow Mesenchymal Stromal Cells on Equine Articular Chondrocytes.
International journal of molecular sciences    September 16, 2023   Volume 24, Issue 18 14169 doi: 10.3390/ijms241814169
Jammes M, Cassé F, Velot E, Bianchi A, Audigié F, Contentin R, Galéra P.Osteoarthritis (OA) is a widespread osteoarticular pathology characterized by progressive hyaline cartilage degradation, exposing horses to impaired well-being, premature career termination, alongside substantial financial losses for horse owners. Among the new therapeutic strategies for OA, using mesenchymal stromal cell (MSC)-derived exosomes (MSC-exos) appears to be a promising option for conveying MSC therapeutic potential, yet avoiding the limitations inherent to cell therapy. Here, we first purified and characterized exosomes from MSCs by membrane affinity capture (MAC) and size-exclusio...