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https://www.readbyqxmd.com/read/28543943/assessment-of-horse-owners-ability-to-recognise-equine-laminitis-a-cross-sectional-study-of-93-veterinary-diagnosed-cases-in-great-britain
#1
D Pollard, C E Wylie, K L P Verheyen, J R Newton
BACKGROUND: Use of owner-reported data could further epidemiological knowledge of equine laminitis. However, owner recognition of laminitis has not previously been assessed. OBJECTIVES: The primary objective was to establish whether cases of owner-suspected laminitis would be confirmed as laminitis by the attending veterinary surgeon. Secondary objectives were to compare owner- and veterinary-reported information from veterinary-confirmed cases of equine laminitis...
May 22, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28543410/the-diagnosis-of-equine-insulin-dysregulation
#2
REVIEW
F R Bertin, M A de Laat
Insulin dysregulation is the hallmark of Equine Metabolic Syndrome and has received attention because of its direct association with laminitis. In the absence of an adequate treatment for laminitis, a focus on prophylaxis is needed, making early detection of individuals at risk of developing laminitis one of the main challenges in equine endocrinology. Recent studies have shown that insulin dysregulation goes beyond tissue insulin resistance and it is now demonstrated that the equine enteroinsular axis plays a major role in insulin secretion and equine hyperinsulinaemia...
May 22, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28497743/seroprevalence-of-theileria-equi-and-babesia-caballi-in-horses-in-spain
#3
Maria Guadalupe Montes Cortés, José Luis Fernández-García, Miguel Ángel Habela Martínez-Estéllez
Equine piroplasmoses are enzootic parasitic diseases distributed worldwide with high incidence in tropical and subtropical regions. In Spain, there is insufficient epidemiological data about equine piroplasmoses. The main aim of the present study was therefore to estimate the prevalence of Theileria equi and Babesia caballi in five regions and obtain information about the risk factors. This study was conducted in the central and south-western regions of Spain, using indirect fluorescence antibody testing (IFAT) in 3,100 sera samples from apparently healthy horses of different ages, breeds, coat colours, genders and geographical locations...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28460750/cross-sectional-study-of-the-prevalence-of-and-risk-factors-for-hoof-disorders-in-horses-in-the-netherlands
#4
M Holzhauer, R Bremer, I Santman-Berends, O Smink, I Janssens, W Back
Information is scarce on the prevalence of hoof disorders in horses. In this study, we examined the prevalence of and risk factors for hoof disorders in a population of horses in The Netherlands. In a group of 942 randomly selected horses, hoof health was scored during regular foot trimming (one horse/farm). Hooves were assessed for the occurrence of one of 12 hoof disorders by a group of 21 certified farriers in two periods i.e. winter and summer of 2015. The mean age of the group of horses was 11.2±5.6years...
May 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28444202/application-of-genomic-estimation-methods-of-inbreeding-and-population-structure-in-an-arabian-horse-herd
#5
Mohammed A Al Abri, Uta König von Borstel, Veronique Strecker, Samantha A Brooks
Horse breeders rely heavily on pedigrees for identification of ancestry in breeding stock. Inaccurate pedigrees may erroneously assign individuals to false lineages or breed memberships resulting in wrong estimates of inbreeding and coancestry. Moreover, discrepancies in pedigree records can lead breeders seeking to limit inbreeding into making misguided breeding decisions. Genome-wide SNPs provide a quantitative tool to aid in the resolution of lineage assignments and the calculation of genomic measures of relatedness...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28439897/platelet-lysate-obtained-via-plateletpheresis-performed-in-standing-and-awake-equine-donors
#6
Scarlett M Sumner, Maria C Naskou, Merrilee Thoresen, Ian Copland, John F Peroni
BACKGROUND: Platelet preparations containing growth factors, attachment factors, and enzymes are appealing to enhance healing of injured tissues and as an alternative to xenogenic serum in cell culture media. Plateletpheresis is commonly used to collect platelets in human medicine but has not been validated in horses. STUDY DESIGN AND METHODS: Plateletpheresis to collect platelet concentrate was performed on six female, mixed breed, chemically restrained horses using commercially available apheresis equipment...
April 25, 2017: Transfusion
https://www.readbyqxmd.com/read/28437035/the-association-between-oral-examination-findings-and-computed-tomographic-appearance-of-the-equine-temporomandibular-joint
#7
J L Carmalt, H Simhofer, A Bienert-Zeit, J E Rawlinson, C L Waldner
BACKGROUND: The temporomandibular joint (TMJ) forms the junction between the maxilla and mandible. Movement of the jaw and resulting masticatory forces have been extensively studied in the horse; however, less is known about the inter-relationship between this joint and oral and dental pathology. OBJECTIVES: To determine the association between specific oral and dental pathologies and anatomical variations of the TMJ imaged with computed tomography (CT) in horses with asymptomatic TMJs...
April 24, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28425625/a-missense-mutation-in-damage-specific-dna-binding-protein-2-is-a-genetic-risk-factor-for-limbal-squamous-cell-carcinoma-in-horses
#8
Rebecca R Bellone, Jiayin Liu, Jessica L Petersen, Maura Mack, Moriel Singer-Berk, Cord Drögemüller, Julia Malvick, Barbara Wallner, Gottfried Brem, M Cecilia Penedo, Mary Lassaline
Squamous cell carcinoma (SCC) is the most common cancer of the equine eye, frequently originating at the limbus, with the potential to invade the cornea, cause visual impairment, and result in loss of the eye. Several breeds of horses have a high occurrence of limbal SCC implicating a genetic basis for limbal SCC predisposition. Pedigree analysis in the Haflinger breed supports a simple recessive mode of inheritance and a genome-wide association study (N = 23) identified a 1.5 Mb locus on ECA12 significantly associated with limbal SCC (Pcorrected = 0...
July 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28423874/the-relationship-between-the-variants-in-the-5-utr-of-ecg-genes-and-serum-ecg-levels
#9
ShuQin Liu, Song Lian, YunZhou Yang, ChunZheng Fu, HongYing Ma, ZhiYao Xiong, Yao Ling, ChunJiang Zhao
Equine Chorionic Gonadotropin (eCG) is a gonadotrophic hormone secreted by endometrial cups of pregnant mare, which is used to induce follicular development. In the present study, single nucleotide polymorphisms (SNPs) in 5'-untranslated regions (5'-UTR) of eCG genes were screened across 10 horse breeds, including 7 Chinese indigenous breeds and 3 imported breeds. Four SNPs were identified in the 5'-UTR of the eCGα gene, and one of them was unique in the indigenous breeds. There were 2 SNPs detected at the 5' end of the eCGβ subunit gene, and one of them was only found in the Chinese breeds...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28382856/postmortem-findings-in-ontario-racehorses-2003-2015
#10
Josepha DeLay
Postmortem lesions and cause of death were evaluated retrospectively for 963 horses examined as part of the Ontario Racing Commission Death Registry over a 13-y period. The Death Registry was established in 2003 to identify factors leading to death or euthanasia of racehorses in this Canadian province. Postmortem examination was carried out on 56% of horses reported to the Death Registry and included Standardbred, Thoroughbred, and American Quarter Horses. Musculoskeletal injury was the most common reason for death associated with racing or training among all racehorses and involved 68% of horses...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28315936/peptide-binding-motifs-of-two-common-equine-class-i-mhc-molecules-in-thoroughbred-horses
#11
Tobias Bergmann, Mikaela Lindvall, Erin Moore, Eugene Moore, John Sidney, Donald Miller, Rebecca L Tallmadge, Paisley T Myers, Stacy A Malaker, Jeffrey Shabanowitz, Nikolaus Osterrieder, Bjoern Peters, Donald F Hunt, Douglas F Antczak, Alessandro Sette
Quantitative peptide-binding motifs of MHC class I alleles provide a valuable tool to efficiently identify putative T cell epitopes. Detailed information on equine MHC class I alleles is still very limited, and to date, only a single equine MHC class I allele, Eqca-1*00101 (ELA-A3 haplotype), has been characterized. The present study extends the number of characterized ELA class I specificities in two additional haplotypes found commonly in the Thoroughbred breed. Accordingly, we here report quantitative binding motifs for the ELA-A2 allele Eqca-16*00101 and the ELA-A9 allele Eqca-1*00201...
March 18, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28287934/seasonal-patterns-in-eastern-equine-encephalitis-virus-antibody-in-songbirds-in-southern-maine
#12
Susan P Elias, Patrick Keenan, Joan L Kenney, Sara R Morris, Kristen M Covino, Sara Robinson, Kimberly A Foss, Peter W Rand, Charles Lubelczyk, Eleanor H Lacombe, John-Paul Mutebi, David Evers, Robert P Smith
The intent of this study was to assess passerine eastern equine encephalitis virus (EEEv) seroprevalence during the breeding season in southern Maine by testing songbird species identified in the literature as amplifying hosts of this virus. In 2013 and 2014, we collected serum samples from songbirds at a mainland site and an offshore island migratory stopover site, and screened samples for EEEv antibodies using plaque reduction neutralization tests. We compared seasonal changes in EEEv antibody seroprevalence in young (hatched in year of capture) and adult birds at the mainland site, and also compared early season seroprevalence in mainland versus offshore adult birds...
May 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28235824/a-nonsense-variant-in-the-st14-gene-in-akhal-teke-horses-with-naked-foal-syndrome
#13
Anina Bauer, Theresa Hiemesch, Vidhya Jagannathan, Markus Neuditschko, Iris Bachmann, Stefan Rieder, Sofia Mikko, M Cecilia Penedo, Nadja Tarasova, Martina Vitková, Nicolò Sirtori, Paola Roccabianca, Tosso Leeb, Monika M Welle
Naked foal syndrome (NFS) is a genodermatosis in the Akhal-Teke horse breed. We provide the first scientific description of this phenotype. Affected horses have almost no hair and show a mild ichthyosis. So far, all known NFS affected horses died between a few weeks and 3 yr of age. It is not clear whether a specific pathology caused the premature deaths. NFS is inherited as a monogenic autosomal recessive trait. We mapped the disease causing genetic variant to two segments on chromosomes 7 and 27 in the equine genome...
April 3, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28224649/sex-chromosomal-abnormalities-associated-with-equine-infertility-validation-of-a-simple-molecular-screening-tool-in-the-purebred-spanish-horse
#14
G Anaya, A Molina, M Valera, M Moreno-Millán, P Azor, P Peral-García, S Demyda-Peyrás
Chromosomal abnormalities in the sex chromosome pair (ECAX and ECAY) are widely associated with reproductive problems in horses. However, a large proportion of these abnormalities remains undiagnosed due to the lack of an affordable diagnostic tool that allows for avoiding karyotyping tests. Hereby, we developed an STR (single-tandem-repeat)-based molecular method to determine the presence of the main sex chromosomal abnormalities in horses in a fast, cheap and reliable way. The frequency of five ECAX-linked (LEX026, LEX003, TKY38, TKY270 and UCDEQ502) and two ECAY-linked (EcaYH12 and SRY) markers was characterized in 261 Purebred Spanish Horses to determine the efficiency of the methodology developed to be used as a chromosomal diagnostic tool...
February 22, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28192783/androgen-insensitivity-syndrome-in-a-family-of-warmblood-horses-caused-by-a-25-bp-deletion-of-the-dna-binding-domain-of-the-androgen-receptor-gene
#15
G Eastman Welsford, Rikke Munk, Daniel A F Villagómez, Poul Hyttel, W Allan King, Tamas Revay
Testicular feminization, an earlier term coined for describing a syndrome resulting from failure of masculinization of target organs by androgen secretions during embryo development, has been well documented not only in humans but also in the domestic horse. The pathology, actually referred to as androgen insensitivity syndrome (AIS), has been proposed to follow an X-linked recessive pattern of inheritance in some horse breeds already investigated. Affected individuals are characterized by a female phenotype but with a stallion genotype of 64,XY SRY+ constitution...
2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28190504/seroprevalence-and-risk-factors-for-infection-with-equine-coronavirus-in-healthy-horses-in-the-usa
#16
L J Kooijman, K James, S M Mapes, M J P Theelen, N Pusterla
Equine coronavirus (ECoV) is considered an enteric pathogen of foals and has only recently been associated with infections in adult horses. Seroprevalence data is needed to better understand the epidemiology of ECoV in adult horses, evaluate diagnostic modalities and develop preventive measures. The objective of this study was to investigate the seroprevalence and selective risk factors for ECoV in 5247 healthy adult horses in the USA, using a recently established and validated IgG enzyme-linked immunosorbent assay...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28161600/equine-viral-arteritis-in-breeding-and-sport-horses-in-central-spain
#17
Fatima Cruz-Lopez, Richard Newton, Ana Sanchez-Rodriguez, Joanne Ireland, Lapo Mughini-Gras, Miguel A Moreno, Paloma Fores
Equine viral arteritis (EVA) may have a high economic impact on breeding stud farms due to the occurrence of EVA-associated abortion outbreaks and the ability of the virus to persist in carrier stallions. While the consequences of EVA in premises with sport horses are usually less severe, the first confirmed outbreak of EVA in Spain occurred in a riding club in Barcelona, but no data on the seroprevalence of EVA in sport horses have been reported in Spain. Given the importance of both Spanish Purebred (SP) breeding horses and sport horses for Spain's equine industry, the aim of this study was to determine and compare the seroprevalence of EVA in these two horse populations in central Spain...
January 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28161473/first-identification-and-phylogenetic-analysis-of-equine-hepacivirus-in-korea
#18
Ho-Seong Kim, Hyun-Woo Moon, Haan Woo Sung, Hyuk Moo Kwon
Non-primate hepacivirus (NPHV) corresponds a group of isolates recently characterized in horses and dogs that present similar genomic organization and are closely related to hepatitis C virus. Since canine hapacivirus, NPHV identified in dogs, was first discovered in dogs in the United States, equine hepacivirus (EqHV, NPHV identified in horses) has been identified in horses in several countries. However, no epidemiological studies have investigated EqHV in horses in Korea. In this study, a total of 74 (n=74) serum samples collected from horses in four regions of Korea were tested for EqHV RNA using nested RT-PCR...
February 1, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28151085/natural-infection-of-the-south-american-tapir-tapirus-terrestris-by-theileria-equi
#19
Alexandre Welzel Da Silveira, Gustavo Gomes De Oliveira, Leandro Menezes Santos, Lucas Bezerra da Silva Azuaga, Claudia Regina Macedo Coutinho, Jessica Teles Echeverria, Tamires Ramborger Antunes, Carlos Alberto do Nascimento Ramos, Alda Izabel de Souza
Theileria equi is a tick-borne piroplasm considered endemic in equines in Brazil. The cohabitation of domestic and wild animals in areas of extensive cattle breeding favors the close contact between different species and the sharing of vectors and, consequently, pathogens. We report the natural infection of a young South American tapir ( Tapirus terrestris ) by T. equi in Mato Grosso do Sul, Brazil. Although it was not possible to associate the clinical and hematologic status of the animal with the infection by the protozoan parasite, our report represents an alert on the sharing of pathogens between domestic and wild animals...
April 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28132964/isolation-of-equine-herpesvirus-3-ehv-3-from-equine-coital-exanthema-of-two-stallions-and-sero-epidemiology-of-ehv-3-infection-in-japan
#20
Rikio Kirisawa, Yuko Toishi, Ai Akamatsu, Kosuke Soejima, Taisuke Miyashita, Nobuo Tsunoda
In the spring of 2015, two stallions reared in Farms A and B in Hokkaido in Japan showed symptoms of equine coital exanthema. Equine herpesvirus 3 (EHV-3) was isolated from penis swab samples of both stallions, and the isolates from each stallion in Farms A and B were designated as SS-1 and YS-1 strains, respectively. BamHI restriction profiles of SS-1 and Japanese reference strain Iwate-1 were indistinguishable, but the BamHI-A fragment of YS-1 was larger than those of SS-1 and Iwate-1 by 1.9 kbp because of the lack of two BamHI sites...
March 23, 2017: Journal of Veterinary Medical Science
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