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Electrointestinography, ultrasonographic contractility, and borborygmi of the cecum and colon are not altered by a single episode of hand walking exercise in healthy horses.
Journal of the American Veterinary Medical Association    November 6, 2024   1-9 doi: 10.2460/javma.24.07.0486
Munsterman AS, Rogers-Tirado JM, Kottwitz J.To evaluate the effect of hand walking exercise on myoelectrical activity and contractility in normal, healthy horses. Methods: Prospective experimental design. A convenience sample of 8 horses were randomized to a control or hand walking treatment group; each horse underwent both treatments. After a 30-minute baseline electrointestinography (EIG), horses were stall rested or hand walked for 15 minutes. Electrointestinography was repeated immediately and at 2 hours. Ultrasonography and auscultation monitored cecal and left ventral colon (LVC) contractions during EIG. Electrointestinography spe...
Evaluations of Morphometric Traits and Body Conformation Indices of Horse Ecotypes Reared in the Highlands of Bale Eco-Region, Ethiopia.
Veterinary medicine and science    November 6, 2024   Volume 10, Issue 6 e70114 doi: 10.1002/vms3.70114
Guyo M, Tareke M, Tonamo A, Bediye D, Defar G.Morphometric traits discrepancies are associated with production, reproduction, adaptation and behaviours in horses. It also determines the design of harnessing implements, physical injury level and working performance of the native horses. Thus, the study was conducted to evaluate morphometric traits and body conformation indices of horse ecotypes reared across four districts of Bale Zone, Ethiopia. Methods: Data of croup height, croup length, hip height, mid-back height, wither height, hip width, thoracic depth, chest width, body length, sternum height, thorax perimeter and cannon perimeter ...
The Role of the Equestrian Professional in Bridle and Bit Fit in the United Kingdom.
Animals : an open access journal from MDPI    November 6, 2024   Volume 14, Issue 22 doi: 10.3390/ani14223188
Nankervis K, Williams JM, Fisher D, MacKechnie-Guire R.To ensure the comfort of ridden horses, equipment including bridles and bits should be suitable and fit correctly. Horse owners employ a variety of equestrian professionals with varying degrees of responsibility regarding bridle and bit fit. This study aimed to compare the frequency and manner in which equestrian professionals within a multidisciplinary team (MDT) engage with clients on matters of bridle and bit fit, and to capture their perceptions of the key issues in bridle and bit fit. The participants completed an online questionnaire to obtain information regarding participant demographi...
A broad-spectrum peptide screening method using an optimized solid-phase extraction and liquid chromatography-high-field asymmetric ion mobility spectrometry-mass spectrometry for doping control in equine urine.
Analytical methods : advancing methods and applications    November 6, 2024   doi: 10.1039/d4ay01477d
Ohnuma K, Hirano-Kodaira M, Bannai M, Shimizu Y, Yamada M, Kinoshita K, Ngai-Wa Leung G, Ishii H.The abuse of prohibited peptide-based drugs with a broad spectrum of chemical characteristics poses a significant concern for the horseracing industry. Recently, there has been a notable increase in positive cases of small-peptide drugs reported in equine and canine sports. In addition to small peptides, large peptides (over 2 kDa) with structural diversity have also entered the market in increasing numbers as drugs for humans and livestock. However, the simultaneous analysis of both small- and large-peptide-based drugs is still challenging. In this study, a screening method was developed to c...
Intrathecal enalapril reduces adhesion formation in experimentally induced digital flexor tendon sheath injuries in horses.
Veterinary surgery : VS    November 5, 2024   doi: 10.1111/vsu.14186
Willette JA, Tsoi M, Frobish D, VanderBroek AR.The objectives of the study were to describe a standing percutaneous adhesion induction model in the digital flexor tendon sheath (DFTS) of horses and to evaluate the effect of intrathecal administration of the angiotensin-converting enzyme (ACE) inhibitor enalapril on tendon healing and adhesion formation. Methods: Randomized, blinded, controlled experimental study. Methods: Eight healthy horses. Methods: A collagenase-induced adhesion model was implemented in the deep digital flexor tendon (DDFT) of both forelimbs under standing ultrasonographic guidance. Daily intrathecal injections of 5 ...
Environmental impacts and daily voluntary movement of horses housed in pasture tracks as compared to conventional pasture housing.
Journal of equine veterinary science    November 5, 2024   Volume 143 105215 doi: 10.1016/j.jevs.2024.105215
Farmer Long J, Duberstein J, Costin K, Callaway T, Abrams A, Wassel B, Toal K, Duberstein K.Pasture tracks are a modern equine housing trend often implemented as a weight control strategy due to the belief that they promote movement, though this is not proven experimentally. To test movement of horses housed in pasture tracks as compared to conventional pasture housing, two experiments were performed using a track (0.2ha, 3.5m in width, 561 m total distance) created around the perimeter of a 2.0 ha pasture. In experiment 1, eight horses were paired and rotated between three treatment locations: track (T), small 2 ha pasture housed within the track (SP), and a larger 20 ha pasture on ...
Does Equestrian Helmet Type Affect Head Injury? A Study on Equestrian Helmet Use Among Collegiate Athletes.
Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine    November 5, 2024   Volume 35, Issue 6 646-651 doi: 10.1097/JSM.0000000000001297
Gould S, Crawford AE, Picken L, Serrano D, Gabriel F, McGwin G, Chandran A, Schrum K.To characterize helmet use, head injury risk, and to examine rider-related factors that influence these variables. Methods: Cross-sectional study. Methods: The University of Alabama at Birmingham Equestrian Sports Medicine Collaborative. Methods: In total, 357 equestrians competing at the collegiate level participated in this study. Unassigned: χ 2 tests were used to evaluate potential associations between a rider's experience level, riding style, and use of helmet designed with MIPS with number of falls, past head injuries, and helmet use frequency. Methods: Data regarding helmet use and equ...
Gold-Induced Cytokine (GOLDIC) for the Management of Knee Osteoarthritis: A Systematic Review.
Cureus    November 5, 2024   Volume 16, Issue 11 e73040 doi: 10.7759/cureus.73040
Aratikatla A, Viswanathan VK, Ghandour S, Jain VK, Gupta A.Gold-induced cytokine (GOLDIC) is a novel orthobiologic approach utilizing gold particles to produce a serum rich in immunoregulating cytokines and growth factors, which is being explored for its potential in tissue regeneration and treating musculoskeletal issues like knee osteoarthritis (OA). This study aims to review its mechanism of action along with the outcomes of , preclinical, and clinical studies, with a secondary focus on documenting clinical trials related to its use in OA of the knee. A systematic search was conducted in four databases (Embase, Scopus, PubMed, Web of Science) for...
Cardiac Structure and Function of Elite Australian Jockeys Compared to the General Population: An Observational Cross-Sectional Study.
Sports medicine - open    November 5, 2024   Volume 10, Issue 1 119 doi: 10.1186/s40798-024-00783-9
Farley A, Bennett H, Eston R, Perry R.Research highlights the intense physiological demands of thoroughbred racing on jockeys, with elevated heart rates and substantial oxygen uptake, confirming the rigorous physical nature of the sport, however, the cardiovascular changes resulting from the physical demands of thoroughbred racing remain unexplored in Australian jockeys. Therefore, the objective of this study was to compare measures of cardiac structure and function of professional Australian jockeys to that of the general population and to determine if there are differences in heart structure and function detected using echocardi...
Prevalence of gastrointestinal and blood parasites in horses of Nakhon Si Thammarat province, Thailand.
Veterinary world    November 5, 2024   Volume 17, Issue 11 2460-2468 doi: 10.14202/vetworld.2024.2460-2468
Phetkarl T, Fungwithaya P, Lewchalermvong K, Sontigun N.The global prevalence of gastrointestinal (GI) and blood parasite infections in horses is a significant concern due to their substantial impact on morbidity, mortality, and economic losses in the horse industry. In Thailand, limited research has been conducted on these parasites in horse populations, and data from southern Thailand are lacking. Consequently, this study aimed to estimate the prevalence of GI and blood parasites in horses in Nakhon Si Thammarat province, Thailand. Unassigned: In total, 79 fecal and blood samples were collected from horses across 11 farms in Nakhon Si Thammarat p...
Orthoflavivirus circulation in South-East Queensland, Australia, before and during the 2021-2022 incursion of Japanese encephalitis virus assessed through sero-epidemiological survey of a sentinel equine population.
One health (Amsterdam, Netherlands)    November 5, 2024   Volume 19 100930 doi: 10.1016/j.onehlt.2024.100930
Yuen NKY, Harrison JJ, Wang ASW, McMahon IE, Habarugira G, Coyle MP, Bielefeldt-Ohmann H.An incursion and outbreak of Japanese encephalitis virus (JEV) was reported in Australia in 2021 and 2022, respectively. There was speculation that JEV may have been circulating in Australia unknowingly prior to the detection. In this study, we determined sero-prevalence and transmission of West Nile virus (WNV), Murray Valley encephalitis virus (MVEV) and JEV, prior to and post JEV incursion in a sentinel equine population in south-east Queensland (SEQ), Australia, using blocking ELISAs (screening test) and virus neutralisation test (confirmatory). Serum samples collected between 2018 and 202...
Diastasis of the Pubic Symphysis Without Fall While Horseback Riding: A Case Report.
Cureus    November 4, 2024   Volume 16, Issue 11 e72988 doi: 10.7759/cureus.72988
Giotis D, Konstantinidis C, Plakoutsis S, Vardakas D, Panagiotopoulos V.The purpose of this study was to demonstrate a rare case of pelvic ring injury in a healthy man without a history of high energy damage. A 43-year-old man presented to the emergency with local pain in pubic symphysis and difficulty walking after horseback riding. The patient did not report any fall or injury during this recreational activity, and apart from tachycardia, he was hemodynamically stable with normal blood pressure. Additionally, no deficit of neurological function was observed. The radiological imaging demonstrated an injury of the pelvic ring APC II with a diastasis of pubic symph...
Congenital urachal and urinary bladder defects leading to uroperitoneum in a neonatal quarter horse colt.
The Canadian veterinary journal = La revue veterinaire canadienne    November 4, 2024   Volume 65, Issue 11 1119-1123 
Karam B, Arndt S, Magdesian KG, Cullen T, Dechant JE.A newborn (5 h old) quarter horse colt was presented because of lethargy and severe abdominal distention. Uroperitoneum was suspected during initial workup, based on sonographic imaging and peritoneal fluid analysis. Definitive diagnosis was confirmed during exploratory celiotomy. Surgery revealed a congenitally abnormal allantoic stalk/urachal remnant and a failure of embryological fusion of the dorsal bladder wall. Recovery was successful and the animal is now a healthy, 4-year-old western performance gelding. These specific congenital abnormalities have not been previously documented in the...
Analysis of stallion spermatozoa metabolism using Agilent Seahorse XFp Technology.
Animal reproduction science    November 3, 2024   Volume 271 107633 doi: 10.1016/j.anireprosci.2024.107633
Ortiz-Rodriguez JM, Bucci D, Tovar-Pascual L, Granata S, Spinaci M, Nesci S.Sperm metabolism consists of a sophisticated network of biochemical reactions and varies between species, resulting in different metabolic strategies for ATP production to maintain sperm functionality. ATP can be produced through glycolysis or in the mitochondria by oxidative phosphorylation (OXPHOS). Since OXPHOS is the predominant metabolic pathway in horses spermatozoa, various assessments of mitochondrial activity are used to evaluate fertility, utilizing techniques such as fluorescent probes analysed via microscopy or flow cytometry, and polarographic electrode assays to measure current f...
Evaluation of the Rostral Inferior Alveolar Nerve Block via the Mental Foramen in Equids: In Vivo Efficacy Testing.
Journal of veterinary dentistry    November 3, 2024   8987564241295586 doi: 10.1177/08987564241295586
Broman A, Rawlinson JE, Bass L, Boscan P, Rao S.The use of proper sedative and regional anesthetic protocols is essential when performing equine dental surgical procedures under standing sedation. The efficacy of the rostral inferior alveolar nerve block via the mental foramen has not been previously studied. Aims of this study included determining the efficacy of the block, investigating whether any region (labial mucosa, alveolar mucosa, or teeth) was more reliably anesthetized, and if differences in efficacy existed between bilateral and unilateral blocks. In this blinded trial, 10 horses each were randomly assigned to receive a left uni...
Administration of sodium hyaluronate to adult horses prior to and immediately after exercise does not alter the range of motion in either the tarsus or metacarpophalangeal joints.
Translational animal science    November 2, 2024   Volume 8 txae153 doi: 10.1093/tas/txae153
Riley JW, Chance LM, Barshick MR, Johnson SE.Hyaluronic acid (HA), a glycosaminoglycan found in joint synovial fluid, is administered to horses as an anti-inflammatory with lubrication properties. This experiment examined the effects of HA administered before and shortly after an exercise test on metacarpophalangeal (MCP; fetlock) and tibiotarsal (hock) joint range of motion (ROM). Horses were injected intravenously (IV) with placebo (4 mL, saline) or HA (4 mL, 40 mg) 24 h before performing a standardized exercise test (SET) on a high-speed treadmill and again at 6-h post-SET. Passive fetlock flexion was measured at 4 and 24 h post-...
Lidocaine’s Ineffectiveness in Mitigating Lipopolysaccharide-Induced Pain and Peristaltic Effects in Horses.
Animals : an open access journal from MDPI    November 2, 2024   Volume 14, Issue 21 3147 doi: 10.3390/ani14213147
Sousa LN, Winter IC, Varela DD, Luvison EZ, Guzmán JFC, Machado AMV, Figueiredo RDV, Pena GT, Dos Santos ACS, Faleiros RR, Carvalho AM.The present study involved seven horses in a randomized crossover clinical trial to evaluate the effect of lidocaine on horses with induced endotoxemia. Horses received intravenous lidocaine (1.5 mg/kg bolus, followed by 0.05 mg/kg bwt/min) or placebo (0.9% sodium chloride at the same manner) one hour before LPS administration (0.03 μg/kg, IV infusion over 30 min). We monitored clinic and hematologic parameters, abdominal auscultation, ultrasound, and pain over time. No relevant clinical differences existed between treatments regarding peristalsis, abdominal pain, or any other parameters befo...
Equine Encephalomyelitis Outbreak, Uruguay, 2023-2024.
Emerging infectious diseases    November 2, 2024   Volume 31, Issue 1 doi: 10.3201/eid3101.240915
Frabasile S, Morel N, Pérez R, Marrero LM, Burgueño A, Cortinas MN, Bassetti L, Negro R, Rodríguez S, Bórmida V, Gayo V, de Souza VC, Naveca FG....We report the genomic analysis from early equine cases of the Western equine encephalitis virus outbreak during 2023-2024 in Uruguay. Sequences are related to a viral isolate from an outbreak in 1958 in Argentina. A viral origin from South America or continuous enzootic circulation with infrequent spillover is possible.
Changes in Immunoglobulins G and A in the Saliva and Serum of Horses with Equine Gastric Ulcer Syndrome (EGUS) and Their Relationship with Other Immune and Redox Status Biomarkers.
Biology    November 1, 2024   Volume 13, Issue 11 doi: 10.3390/biology13110891
Botía M, Martín-Cuervo M, Martínez-Subiela S, Cerón JJ, Ayala I, Hansen S, Muñoz-Prieto A.Equine Gastric Ulcer Syndrome (EGUS) is a widespread disease with a very high prevalence and importance in horses. It includes two conditions: Equine squamous gastric disease (ESGD), linked to acid disturbances, and Equine Glandular Gastric Disease (EGGD), associated with inflammation and immune system issues. In saliva, increased levels of immunological markers have been observed in this disease, indicating immune system involvement. In addition, changes in biomarkers of oxidative stress have been described. In horses, IgG and IgA are proteins that appear in saliva and serum and are considere...
Potential adverse effects of SGLT2i in horses.
The Veterinary record    November 1, 2024   Volume 195, Issue 6 253-254 doi: 10.1002/vetr.4726
McGorum BC, Keen JA, McCullagh S, Marr CM, MacKenzie C, Carslake H, Menzies-Gow N, Dunkel B, Hewetson M, Reed J, Knowles E.No abstract available
IVF with frozen-thawed sperm after prolonged capacitation yields comparable results to ICSI in horses: A morphokinetics study.
Theriogenology    November 1, 2024   Volume 232 39-45 doi: 10.1016/j.theriogenology.2024.10.032
Martin-Pelaez S, Fuente A, Takahashi K, Perez IT, Orozco J, Okada CTC, Neto CR, Meyers S, Dini P.Intracytoplasmic sperm injection (ICSI) is the current clinical practice for the in vitro production of equine embryos. The use of conventional fertilization methods such as in vitro fertilization (IVF), has historically been associated with poor success in horses. However, recent improvements have led to better outcomes with IVF, though only when using fresh semen, which limits its use in clinical practice. IVF remains in its infancy in equine reproduction, and several unknowns remain about the technique. One significant gap in knowledge concerns the morphokinetics of IVF embryos and how they...
Matrikine stimulation of equine synovial fibroblasts and chondrocytes results in an in vitro osteoarthritis phenotype. Gagliardi R, Koch DW, Loeser R, Schnabel LV.Osteoarthritis (OA) is a debilitating disease that impacts millions of individuals and has limited therapeutic options. A significant hindrance to therapeutic discovery is the lack of in vitro OA models that translate reliably to in vivo preclinical animal models. An alternative to traditional inflammatory cytokine models is the matrikine stimulation model, in which fragments of matrix proteins naturally found in OA tissues and synovial fluid, are used to stimulate cells of the joint. The objective of this study was to determine if matrikine stimulation of equine synovial fibroblasts and chond...
Equipment-related wounds and associated risk factors in working equids of the Oromia national regional state in Ethiopia.
Animal welfare (South Mimms, England)    October 31, 2024   Volume 33 e42 doi: 10.1017/awf.2024.52
Merridale-Punter MS, Wodajo AL, Elias B, Bakos AM, Zewdu H, Tesfaye R, Hailegebreal G, Sori T, El-Hage CM, Wiethoelter AK, Hitchens PL.Working equids support the livelihoods of millions of low-income households worldwide and face several welfare challenges. Although equipment-related wounds are common, little is known about specific risk factors. This cross-sectional study surveyed equids used for cart-work in three Ethiopian towns. Number, size, severity and location of wounds were recorded for each animal, as well as work equipment characteristics and indicators of equipment fit and assembly. Questionnaires were conducted with each cart-driver focusing on equipment practices and attitudes. Logistic regression models were ge...
A dominant missense variant within LMBR1 related to equine polydactyly.
Communications biology    October 31, 2024   Volume 7, Issue 1 1420 doi: 10.1038/s42003-024-07065-w
Luan Y, Zhong L, Li C, Yue X, Ye M, Wang J, Zhu Y, Wang Q.Polydactyly was recorded before 100 BCE and attracted widespread interest because of its relationship to limb health and ancestral traits in horses. However, the underlying reasons for the development of polydactyly remain unclear. To search for polydactyly-related genes, we utilize a paternal half-sib family and screen for variants that match the mode of inheritance. Through this screening process, 77 variants in 65 genes are filtered. A missense variant (EqCab3.0 chr4:  A > G) (rs1138485164) in the 3rd exon of LMBR1 is identified as a source of amino acid sequence variation. Gene ...
Oxygen consumption, locomotory-respiratory coupling and exercise-induced pulmonary hemorrhage in horses during the Paso Fino gait.
Journal of veterinary internal medicine    October 31, 2024   Volume 38, Issue 6 3337-3345 doi: 10.1111/jvim.17226
Massie S, Léguillette R, Bayly W, Sides R, Zuluaga-Cabrera AM.Workload associated with the high frequency Colombian Paso Fino gait has not been evaluated. Objective: To determine the oxygen consumption (V̇O), heart rate (HR), stride frequency: breathing ratio, and hematology associated with the Paso Fino gait, including whether exercise-induced pulmonary hemorrhage (EIPH) occurs. Methods: Eleven Paso Fino horses. Methods: Prospective cohort study. Horses performed a standardized Paso Fino gait test across a wooden sounding board, simulating competition. V̇O and ventilatory parameters (tidal volume [V]; peak inspiratory and expiratory airflows [PkV̇, P...
Equine bone marrow-derived mesenchymal stromal cells reduce established S. aureus and E. coli biofilm matrix in vitro.
PloS one    October 31, 2024   Volume 19, Issue 10 e0312917 doi: 10.1371/journal.pone.0312917
Khatibzadeh SM, Dahlgren LA, Caswell CC, Ducker WA, Werre SR, Bogers SH.Biofilms reduce antibiotic efficacy and lead to complications and mortality in human and equine patients with orthopedic infections. Equine bone marrow-derived mesenchymal stromal cells (MSC) kill planktonic bacteria and prevent biofilm formation, but their ability to disrupt established orthopedic biofilms is unknown. Our objective was to evaluate the ability of MSC to reduce established S. aureus or E. coli biofilms in vitro. We hypothesized that MSC would reduce biofilm matrix and colony-forming units (CFU) compared to no treatment and that MSC combined with the antibiotic, amikacin sulfate...
A threshold model to determine the association between race rides and fall risk for early career (apprentice) jockeys.
Journal of science and medicine in sport    October 31, 2024   Volume 28, Issue 4 292-297 doi: 10.1016/j.jsams.2024.10.009
Legg KA, Cochrane DJ, Gee EK, Rogers CW.To identify descriptors associated with success in apprentice jockeys and to determine optimum numbers of jockeys for safer race riding. Methods: Retrospective cohort study. Methods: Incidence-rates for jockey falls and success (wins per 1,000 race-starts), time and number of races spent at different apprentice levels were calculated for 807 apprentice and professional jockeys over 19 years of Thoroughbred flat racing in New Zealand (n = 524,551 race-starts). Survival analysis was used to compare career progression for jockeys that fell and those that did not, and individual seasonal fal...
The first report of submandibular lymph node infection with Flavobacterium ceti in a horse and its complete genome sequence.
Microbial pathogenesis    October 31, 2024   Volume 197 107096 doi: 10.1016/j.micpath.2024.107096
Ryu SH, Jang B, Kim BS, Park KT.This is the first report describing the isolation and genome sequence of Flavobacterium ceti (F. ceti IJFC025) from a draining submandibular lymph node abscess in a 6-year-old mixed-breed mare in Korea. Since F. ceti is not a usual infectious pathogen that causes equine health problems, this study presents the complete genome sequence of F. ceti isolated from a submandibular lymph node abscess sample in Jeju, South Korea, in 2022. The entire genome sequence of F. ceti IJFC025 consisted of a 3,144,426-bp chromosome with 35.6 % G + C content. Gene prediction revealed that this strain possesse...
An Equine-Assisted Intervention Versus Non-Manualized Psychotherapy for Youth in a Residential Childcare Facility.
Journal of child & adolescent trauma    October 30, 2024   Volume 18, Issue 1 139-149 doi: 10.1007/s40653-024-00666-x
Berg EL, Gooch M, Feldmann LM, Knight B, Verlaine J, Bach-Gorman A.Characteristics of individuals with disruptive behavior disorders often include elevated externalizing behaviors such as impulsivity, defiance of authority and antagonism of social norms. Evidence shows that adolescents diagnosed with these types of disorders are particularly challenging to treat; however, therapies incorporating horses have shown some success. We examined the impact of an equine-assisted intervention compared to a non-manualized cognitive behavioral therapy in youth between 12- and 18-years old living in a residential childcare facility. Upon admittance, youth were administer...
Retrospective evaluation of the impact of atropine administration on incidence of post-operative colic in healthy, isoflurane-anaesthetised horses.
Equine veterinary journal    October 29, 2024   doi: 10.1111/evj.14428
Varner KM, Curtiss AL, Hogan PM, Love K, Dodam JR.In anaesthetised horses, bradycardia secondary to high vagal tone can reduce cardiac output and blood pressure. The use of anticholinergics in horses is limited due to concerns about ileus and abdominal discomfort. This retrospective study sought to determine the prevalence of post-operative abdominal discomfort in healthy horses that received atropine under isoflurane anaesthesia. Methods: A retrospective evaluation of 222 general anaesthesia events between January 2019 and December 2019 was undertaken. Methods: One hundred and eleven horses that received atropine were identified, and 111 cas...