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Tippen SP, Metzger CE, Sacks SA, Allen MR, Mitchell CF, McNulty MA. Clinically relevant doses of tiludronate do not affect bone remodelling in pasture-exercised horses. Equine Vet J 2024. [PMID: 38924597 DOI: 10.1111/evj.14119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/16/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Bisphosphonates are widely used in equine athletes to reduce lameness associated with skeletal disorders. Widespread off-label use has led to concern regarding potential negative effects on bone healing, but little evidence exists to support or refute this. OBJECTIVES To investigate the influence of clinically relevant doses of tiludronate on bone remodelling and bone healing. STUDY DESIGN Randomised, controlled in vivo experiments. METHODS Each horse had a single tuber coxae biopsied (Day 0), then were divided into a treatment (IV tiludronate) or control (IV saline) group. Treatments were administered 30 and 90 days following initial biopsy. Biopsy of the tuber coxae was repeated on Day 60 to evaluate bone healing following a single treatment. Oxytetracycline was administered on Days 137 and 147 to label bone formation. The contralateral tuber coxae was biopsied on Day 150 to evaluate effects of repeated treatment. Bone biopsies were evaluated with micro-computed tomography and/or dynamic histomorphometry using standard techniques. RESULTS Nineteen horses completed the study, with no complications following the biopsies and treatments. No significant differences in the trabecular bone parameters or bone formation rate were observed between treatment groups. MAIN LIMITATIONS The use of a first-generation bisphosphonate may mean some effects of these drugs are underrepresented using this model. The results pertain to the tuber coxae and may not reflect injury or the healing response that occurs in long bones in training or racing. CONCLUSIONS In this model, tiludronate did not affect normal bone remodelling in the horse, despite repeat dosages.
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Affiliation(s)
- Samantha P Tippen
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Education, Innovation, & Technology, Baylor College of Medicine, Houston, Texas, USA
| | - Corinne E Metzger
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Spencer A Sacks
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Matthew R Allen
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Colin F Mitchell
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Margaret A McNulty
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
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Van Cauter R, Serteyn D, Lejeune JP, Rousset A, Caudron I. Evaluation of the appearance of osteochondrosis lesions by two radiographic examinations in sport horses aged from 12 to 36 months. PLoS One 2023; 18:e0286213. [PMID: 37220101 DOI: 10.1371/journal.pone.0286213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/10/2023] [Indexed: 05/25/2023] Open
Abstract
Osteochondrosis is a developmental orthopedic disease characterized by a defect of enchondral ossification. This pathological condition develops and evolves during growth and is influenced by various factors, in particular genetic and environmental. However, little research has been conducted on the dynamic of this condition in horses after the age of 12 months. The retrospective study presented here investigates changes in osteochondrosis lesions through two standardized radiographic examinations carried out on young Walloon sport horses after one year of age (mean age at first and second examination was 407 (±41) and 680 (±117) days respectively). Each examination, analyzed independently by three veterinarians, included latero-medial views of the fetlocks, hocks, stifles, plantarolateral-dorsomedial hocks view and additional radiograph if the operator deemed it necessary. Each joint site was graded as healthy, osteochondrosis (OC) or osteochondrosis dissecans (OCD) affected. A group of 58 horses was studied, among them 20 presented one or more osteochondrosis lesions for a total of 36 lesions present during at least one examination. In this population, 4 animals (6.9%) presented osteochondrosis during only one examination (2 at the first examination and 2 at the second one). Moreover, it was possible to demonstrate the appearance, disappearance and more generally the evolution of 9/36 lesions (25%) within the different joints. The results of the study suggest that, although substantial main limitations, osteochondrosis lesions can evolve after the age of 12 months in sport horses. Knowing this is useful in helping to decide the appropriate radiographic diagnosis timing and management.
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Affiliation(s)
- Raphaël Van Cauter
- Centre Européen du Cheval, Mont-le-Soie, Vielsalm, Belgium
- Département des Sciences Cliniques des Équidés, Chirurgie et Orthopédie, FARAH, Université de Liège, Liège, Belgium
| | - Didier Serteyn
- Centre Européen du Cheval, Mont-le-Soie, Vielsalm, Belgium
- Département des Sciences Cliniques des Équidés, Chirurgie et Orthopédie, FARAH, Université de Liège, Liège, Belgium
| | - Jean-Philippe Lejeune
- Centre Européen du Cheval, Mont-le-Soie, Vielsalm, Belgium
- Département des Sciences Cliniques des Équidés, Chirurgie et Orthopédie, FARAH, Université de Liège, Liège, Belgium
| | - Alycia Rousset
- Centre Européen du Cheval, Mont-le-Soie, Vielsalm, Belgium
| | - Isabelle Caudron
- Centre Européen du Cheval, Mont-le-Soie, Vielsalm, Belgium
- Département des Sciences Cliniques des Équidés, Chirurgie et Orthopédie, FARAH, Université de Liège, Liège, Belgium
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Johansson L, Ringmark S, Skiöldebrand E, Bergquist J, Jansson A. Reduced high-intensity training distance in growing horses had no effect on IGF-1 concentrations, but training onset interrupted time-dependent IGF-1 decline. COMPARATIVE EXERCISE PHYSIOLOGY 2022. [DOI: 10.3920/cep210036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This study investigated plasma insulin like growth factor (IGF)-1 concentrations in 16 young Standardbred horses introduced to systematic high-intensity training at two different levels of intensity. Growth and locomotion asymmetry and correlations between these and plasma IGF-1 concentrations were also examined. From September as 1-year olds to March as 2-year olds (Period 1), all horses were subjected to the same submaximal training program. In March (start of Period 2), the horses were divided into two groups (n=8) and one group was introduced to regular high-intensity training. The other group was introduced to a program where the high-intensity exercise distances were reduced by 30%. These two training programs were maintained for the remaining 21 months of the study (Periods 2, 3, and 4). There was no effect of training group on plasma IGF-1 concentrations. A continuous decline in IGF-1 levels was observed throughout the study (P<0.0001), with one notable interruption in Period 2 when the IGF-1 concentration remained at the level seen at the start of Period 1. Growth rate of body length was equally high in Periods 1 and 2 (P>0.05). Front and hind limb asymmetry was elevated in Period 2 compared with Period 1. There were positive correlations between IGF-1 concentrations and changes in body condition score, and a negative correlation between IGF-1 concentration and weight. These results indicate that introduction to high-intensity training induces IGF-1 release in horses, but that a 30% difference in the distances used in high-intensity training does not affect IGF-1 levels. The temporary interruption in decline in IGF-1 release with the onset of high-intensity training may influence growth pattern and locomotion asymmetry, but further studies are needed to assess causality.
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Affiliation(s)
- L. Johansson
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, Ulls väg 26, Uppsala 75007, Sweden
| | - S. Ringmark
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, Ulls väg 26, Uppsala 75007, Sweden
| | - E. Skiöldebrand
- Swedish University of Agricultural Sciences, Department of Biomedical Sciences and Veterinary Public Health, Ulls väg 26, Uppsala 75007, Sweden
| | - J. Bergquist
- Uppsala University, Department of Chemistry-BMC, Analytical Chemistry and Neurochemistry, Husargatan 3, Uppsala 75237, Sweden
| | - A. Jansson
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, Ulls väg 26, Uppsala 75007, Sweden
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Rogers CW, Gee EK, Dittmer KE. Growth and Bone Development in the Horse: When Is a Horse Skeletally Mature? Animals (Basel) 2021; 11:ani11123402. [PMID: 34944179 PMCID: PMC8698045 DOI: 10.3390/ani11123402] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022] Open
Abstract
Simple Summary A comparison of the pattern of growth in the horse with definitions used to describe growth and development in humans demonstrates the same general pattern of growth. In the horse, these development periods are completed very early in life, generally by 2 years of age. Using a variety of measures to define the completion of growth and bone development, the horse enters skeletal maturity by the time it is 2 years old. There is little variation in the age of maturity across different horse breeds. These data support the hypothesis that the horse evolved to be a precocious cursorial grazer and is capable of athletic activity, and used in sport, relatively early in life. Abstract Within the lay literature, and social media in particular, there is often debate about the age at which a horse should be started and introduced to racing or sport. To optimize the welfare and longevity of horses in racing and sport, it is important to match exercise with musculoskeletal development and the ability of the musculoskeletal system to respond to loading. The justification for not exercising horses at a certain age is often in contrast to the scientific literature and framed, with incorrect generalizations, with human growth. This review provides a relative comparison of the growth and development of the horse to the descriptors used to define growth and development in humans. Measures of physeal closure and somatic growth demonstrate that the horse completes the equivalent of rapid infant growth by weaning (4–6 months old). At approximately 11 months old, the horse completes the equivalent of the childhood phase of growth and enters puberty. At 2 years old, the horse has achieved most measures of maturity used within the human literature, including the plateauing of vertical height, closure of growth plates, and adult ratios of back length:wither height and limb length:wither height. These data support the hypothesis that the horse evolved to be a precocious cursorial grazer and is capable of athletic activity, and use in sport, relatively early in life.
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Affiliation(s)
- Chris W. Rogers
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand; (E.K.G.); (K.E.D.)
- School of Agriculture and Environment, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
- Correspondence:
| | - Erica K. Gee
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand; (E.K.G.); (K.E.D.)
| | - Keren E. Dittmer
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand; (E.K.G.); (K.E.D.)
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Taguchi T, Lopez MJ. An overview of de novo bone generation in animal models. J Orthop Res 2021; 39:7-21. [PMID: 32910496 PMCID: PMC7820991 DOI: 10.1002/jor.24852] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 02/04/2023]
Abstract
Some of the earliest success in de novo tissue generation was in bone tissue, and advances, facilitated by the use of endogenous and exogenous progenitor cells, continue unabated. The concept of one health promotes shared discoveries among medical disciplines to overcome health challenges that afflict numerous species. Carefully selected animal models are vital to development and translation of targeted therapies that improve the health and well-being of humans and animals alike. While inherent differences among species limit direct translation of scientific knowledge between them, rapid progress in ex vivo and in vivo de novo tissue generation is propelling revolutionary innovation to reality among all musculoskeletal specialties. This review contains a comparison of bone deposition among species and descriptions of animal models of bone restoration designed to replicate a multitude of bone injuries and pathology, including impaired osteogenic capacity.
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Affiliation(s)
- Takashi Taguchi
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Mandi J. Lopez
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
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Sage SE, Olive J, Lavoie JP. Occipital condyle defects assessed by radiography or CT can be a normal finding in foals. Vet Radiol Ultrasound 2020; 62:218-224. [PMID: 33315284 DOI: 10.1111/vru.12940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 11/29/2022] Open
Abstract
Age of complete ossification of equine occipital condyles has not been published. Consequently, clinical significance of occipital condyle defects on radiographs or CT scans of young horses remains unknown. The goals of this single-center, retrospective, cross-sectional study were to characterize incidental occipital condyle defects and to define the age of complete ossification. The margin of occipital condyles was classified as regular or with defect(s). Analyses were made on 121 horses, including 106 radiographic and 19 CT studies showing the occipital condyles of horses less than 5 years of age obtained over 6 years in a referral hospital. Neurological signs and outcome were not associated with occipital defects. Horses with regular occipital condyles on radiographs had a median age of 974 days (median interquartile range = 707) compared with 47 days (interquartile range = 106) in the defect group. The odds of finding radiographically regular occipital condyles were 2.6% higher for each additional day of age (P = .011, 95% CI, 0.6-4.7%). In the CT group, univariate analyses demonstrated a significant effect of age on the aspect of occipital condyles (P = .016). Horses with regular occipital condyles were older (median age = 881 days; interquartile range = 1054) than horses with a defect (median age = 109 days, interquartile range = 318). All horses above 156 days (5.1 months) of age and 550 days (18.1 months) of age had regular occipital condyles on radiographic and CT images, respectively. This study describes occipital condyle defects as a potential normal finding in young horses and provides guidelines for interpretation of the occipital condyle ossification process.
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Affiliation(s)
- Sophie Elena Sage
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Julien Olive
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Québec, Canada.,Vet-CT Specialists, Cambridge, UK
| | - Jean-Pierre Lavoie
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, Québec, Canada
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Affiliation(s)
- T. B. Lescun
- Department of Veterinary Clinical Sciences College of Veterinary Medicine Purdue University West Lafayette Indiana USA
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8
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Gilday R, Richard H, Beauchamp G, Fogarty U, Laverty S. Abundant osteoclasts in the subchondral bone of the juvenile Thoroughbred metacarpus suggest an important role in joint maturation. Equine Vet J 2020; 52:733-742. [PMID: 31972056 DOI: 10.1111/evj.13235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 12/12/2019] [Accepted: 01/11/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The administration of bisphosphonate medications, which target osteoclastic-bone remodelling, to juvenile and adult racehorses is a matter of debate owing to concerns that these molecules remain bound to the bone-mineralised matrix and may interfere with subsequent bone growth, adaptation to exercise and healing of bone microdamage in equine athletes. Osteoclasts participate in endochondral ossification, subchondral bone remodelling and bone repair. There is a knowledge gap on the role of equine osteoclast biology in the growth and maturation of joint surfaces and this information is important to inform judicious bisphosphonate use. OBJECTIVES Measure and compare the osteoclast density in the subchondral bone of Thoroughbred (TB) distal third metacarpi (McIII) at different sites, varying depths from the articular surface and with age (0-84 months). STUDY DESIGN Ex vivo cadaveric study. METHODS McIIIs from foals, yearlings and adults were collected, fixed in formaldehyde and stored at 4°C. Sections were cut from the lateral hemi-metacarpus, stained and scored for cartilage degeneration. Osteoclasts were counted on immunohistochemically (Cathepsin K) stained sections. Osteoclast density was compared in regions of interest (ROIs-the sagittal ridge, axial and abaxial condyle) and also at two depths (0-3 mm and 3-6 mm) into the subchondral bone below the osteochondral junction. RESULTS The osteoclast density was consistently highest in the subchondral cortical bone plate (0-3 mm) when compared with the deeper trabecular bone in all age groups. Furthermore, the osteoclast density was significantly higher in juvenile Thoroughbreds (foals and yearlings) within both sites in the subchondral bone when compared with adults. MAIN LIMITATIONS The number of specimens available for study was restricted. CONCLUSIONS Osteoclasts are important in normal McIII epiphyseal and articular surface maturation and have a propensity to localise at the osteochondral junction and subchondral cortical bone plate zone in juvenile Thoroughbreds.
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Affiliation(s)
- Rebecca Gilday
- Comparative Orthopaedic Research Laboratory, Département des Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Hélène Richard
- Comparative Orthopaedic Research Laboratory, Département des Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Guy Beauchamp
- Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Quebec, Canada
| | | | - Sheila Laverty
- Comparative Orthopaedic Research Laboratory, Département des Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Quebec, Canada
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9
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Coppelman EB, David FH, Tóth F, Ernst NS, Trumble TN. The association between collagen and bone biomarkers and radiographic osteoarthritis in the distal tarsal joints of horses. Equine Vet J 2019; 52:391-398. [PMID: 31596508 DOI: 10.1111/evj.13187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 07/27/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND Osteoarthritis (OA) of the distal intertarsal (DIT) and tarsometatarsal (TMT) joints occurs commonly. Synovial fluid (SF) biomarkers of collagen and bone turnover have potential clinical value. OBJECTIVES To measure SF biomarker concentrations from DIT and TMT joints in adult horses and determine if they correlate with radiographic OA severity and are higher in joints with radiographic OA compared to controls. STUDY DESIGN Cross-sectional. METHODS Radiographic OA of DIT and TMT joints was evaluated from adult horses (5-35 years old). Overall radiographic scores divided horses into those with mild or moderate radiographic OA (16 joints from 9 horses) or controls (13 joints from 9 horses). Direct biomarkers of OA (Carboxypropeptide of type II collagen = CPII, carboxy-neoepitope of type II collagen exposed after collagenase-cleavage = C2C, Bone alkaline phosphatase = BAP and Chondroitin sulfate epitope = CS846) were measured via ELISA and CPII/C2C was calculated. Biomarkers were correlated with radiographic findings and concentrations from those with radiographic OA to control joints and were compared. RESULTS Concentrations of CPII (R = 0.84, P<0.001), C2C (R = 0.69, P<0.001) and BAP (R = 0.41, P = 0.03) as well as CPII/C2C (R = 0.69, P<0.001) values positively correlated with overall radiographic scores. Adjusted means ± s.d., after controlling for age, for CPII (P<0.001), C2C (P<0.001), CPII/C2C (P = 0.004) and BAP (P = 0.05) were significantly higher in DIT and TMT joints with radiographic OA (CPII: 2174.45 ± 1064.01; C2C: 233.52 ± 51.187; CPII/C2C: 9.01 ± 4.09; BAP: 21.98 ± 15.34) compared to controls (CPII: 594.53 ± 463.05; C2C: 153.12 ± 48.95; CPII/C2C: 3.96 ± 2.38; BAP: 12.76 ± 3.61). CPII (P<0.001), C2C (P = 0.001) and CPII/C2C (P = 0.001) were significantly higher with moderate radiographic OA (CPII: 2444.61 ± 772.78; C2C: 248.90 ± 44.94; CPII/C2C: 9.47 ± 2.97) compared to controls (CPII: 658.38 ± 417.36; C2C: 156.49 ± 47.61; CPII/C2C: 4.15 ± 2.04), with CPII also showing significantly higher concentrations (P = 0.04) with mild radiographic OA compared (1515.00 ± 584.95) to controls (658.38 ± 417.36). There were no differences in CS846 concentrations between radiographic OA and control joints. Age positively correlated with CPII (R = 0.48, P = 0.01) and C2C (R = 0.44, P = 0.02) concentrations. MAIN LIMITATIONS Radiographic OA was assessed, not clinical lameness. Controls were not age-matched to those with spontaneous radiographic OA. CONCLUSIONS There is an association between collagen (CPII, C2C and CPII/C2C) and bone (BAP) biomarkers and radiographic OA in the distal tarsal joints of horses.
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Affiliation(s)
- E B Coppelman
- Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
| | - F H David
- Veterinary Clinical Sciences Department, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
| | - F Tóth
- Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
| | - N S Ernst
- Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
| | - T N Trumble
- Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
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Łuszczyński J, Pieszka M, Petrych W, Stefaniuk-Szmukier M. The Frequency of Errors in Determining Age Based on Selected Features of the Incisors of Icelandic Horses. Animals (Basel) 2019; 9:ani9060298. [PMID: 31151265 PMCID: PMC6617252 DOI: 10.3390/ani9060298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/16/2019] [Accepted: 05/24/2019] [Indexed: 11/16/2022] Open
Abstract
The structure and changes occurring to horses' teeth during ontogeny are not only used to assess the degree of somatic maturity but also the development of universal patterns and is therefore used to determine the age of horses. Research shows that methods of assessing the age of horses based on the appearance of teeth tend to suffer from relatively large errors. This is probably influenced by the results of intensive selection and being kept in living conditions that differ substantially from their natural environment. This study aimed to assess the suitability of selected features of the incisors to determine the age of Icelandic horses. One hundred and twenty-six Icelandic horses (78 mares and 48 stallions) of different ages (range: 0-24 years; groups: 0-2 years, >2-5 years, >5-11 years, and >11 years) were examined by an experienced horse person who was blinded to the actual age of the horse and did not know which age group horses were in. Age was determined by the inspection of each horse's teeth and was compared to the actual age of the horse recorded in the breeding documentation, and the percentage of mistakes made regarding the age group was calculated. The estimated age did not match the real age in 36.5% of the horses. The age was more often underestimated (19.0%) by, on average, 0.9 ± 1.0 years than overestimated (17.5%) by, on average, 1.3 ± 1.4 years. Within age groups, the least number of errors in determining age were made in young horses aged 0-2 years, when the eruption and growing of the deciduous incisors and the disappearance of the cups was considered. The average percentage of errors in this group (2.1%) was significantly lower (p < 0.01) than for older horses, whose age was estimated based on the exchange of deciduous to permanent teeth (55.8%), disappearance of the cups (68.0%), and shape changes on the grinding surface (40.0%). Significantly more frequent underestimation of age based on replacing deciduous for permanent incisors and significantly more frequent overestimation of age on the basis of the disappearance of the cup may indicate that Icelandic horses up to 5 years of age are characterized by a slower rate of growth than horses of other breeds, especially warmblood horses. These results suggest that patterns used to determine the real age of horses based on changes occurring on the incisors should be modified in order to consider the specificity of the course of growth and maturation processes of horses of various types and breeds.
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Affiliation(s)
- Jarosław Łuszczyński
- Department of Horse Breeding, Institute of Animal Science, Agricultural University, Al. Mickiewicza 24/28, 30-059 Cracow, Poland.
| | - Magdalena Pieszka
- Department of Horse Breeding, Institute of Animal Science, Agricultural University, Al. Mickiewicza 24/28, 30-059 Cracow, Poland.
| | - Weronika Petrych
- Department of Horse Breeding, Institute of Animal Science, Agricultural University, Al. Mickiewicza 24/28, 30-059 Cracow, Poland.
| | - Monika Stefaniuk-Szmukier
- Department of Horse Breeding, Institute of Animal Science, Agricultural University, Al. Mickiewicza 24/28, 30-059 Cracow, Poland.
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Ekman S, Lindahl A, Rüetschi U, Jansson A, Björkman K, Abrahamsson-Aurell K, Björnsdóttir S, Löfgren M, Hultén LM, Skiöldebrand E. Effect of circadian rhythm, age, training and acute lameness on serum concentrations of cartilage oligomeric matrix protein (COMP) neo-epitope in horses. Equine Vet J 2019; 51:674-680. [PMID: 30739342 PMCID: PMC6767518 DOI: 10.1111/evj.13082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 02/01/2019] [Indexed: 01/05/2023]
Abstract
Background Molecular serum markers that can identify early reversible osteoarthritis (OA) in horses are lacking. Objectives We studied serum concentrations of a novel cartilage oligomeric matrix protein (COMP) neo‐epitope in horses subjected to short‐term exercise and with acute lameness. The effects of circadian rhythm and age were also evaluated. Study design Longitudinal studies in healthy horses and cross‐sectional comparison of lame and non‐lame horses. Methods Sera were collected from five horses before and after short‐term interval exercise and during full‐day box rest. Sera from 32 acutely lame horses were used to evaluate age‐related effects. Independent samples from control horses (n = 41) and horses with acute lameness (n = 71) were included. COMP neo‐epitope concentrations were analysed using custom‐developed inhibition ELISAs validated for equine serum. The presence of COMP neo‐epitope was delineated in healthy and osteoarthritic articular cartilage with immunohistochemistry. Results COMP neo‐epitope concentrations decreased after speed training but returned to baseline levels post‐exercise. No correlations between age and serum COMP neo‐epitope concentrations were found (r = 0.0013). The mean (±s.d.) serum concentration of COMP neo‐epitope in independent samples from non‐lame horses was 0.84 ± 0.38 μg/mL, and for lame horses was 5.24 ± 1.83 μg/mL (P<0.001). Antibodies against COMP neo‐epitope did not stain normal articular cartilage, but intracytoplasmic staining was found in superficial chondrocytes of mild OA cartilage and in the extracellular matrix of moderately osteoarthritic cartilage. Main limitations ELISA was based on polyclonal antisera rather than a monoclonal antibody. There is a sex and breed bias within the groups of horses, also it could have been of value to include horses with septic arthritis and tendonitis and investigated joint differences. Conclusions This COMP neo‐epitope can be measured in sera, and results indicate that it could be a biomarker for pathologic fragmentation of cartilage in connection with acute joint lameness.
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Affiliation(s)
- S Ekman
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - A Lindahl
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska University Hospital, Gothenburg University, Gothenburg, Sweden
| | - U Rüetschi
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska University Hospital, Gothenburg University, Gothenburg, Sweden
| | - A Jansson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - K Björkman
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | | | - S Björnsdóttir
- Agricultural University of Iceland, Hvanneyri, Borgarnes, Saudarkrokur, Iceland
| | - M Löfgren
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - L Mattsson Hultén
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - E Skiöldebrand
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska University Hospital, Gothenburg University, Gothenburg, Sweden
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12
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Fenner K, Freire R, McLean A, McGreevy P. Behavioral, demographic, and management influences on equine responses to negative reinforcement. J Vet Behav 2019. [DOI: 10.1016/j.jveb.2018.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Bone histology provides insights into the life history mechanisms underlying dwarfing in hipparionins. Sci Rep 2018; 8:17203. [PMID: 30464210 PMCID: PMC6249282 DOI: 10.1038/s41598-018-35347-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 11/01/2018] [Indexed: 02/02/2023] Open
Abstract
Size shifts may be a by-product of alterations in life history traits driven by natural selection. Although this approach has been proposed for islands, it has not yet been explored in continental faunas. The trends towards size decrease experienced by some hipparionins constitute a good case study for the application of a life history framework to understand the size shifts on the continent. Here, we analysed bone microstructure to reconstruct the growth of some different-sized hipparionins from Greece and Spain. The two dwarfed lineages studied show different growth strategies. The Greek hipparions ceased growth early at a small size thus advancing maturity, whilst the slower-growing Spanish hipparion matured later at a small size. Based on predictive life history models, we suggest that high adult mortality was the likely selective force behind early maturity and associated size decrease in the Greek lineage. Conversely, we infer that resource limitation accompanied by high juvenile mortality triggered decrease in growth rate and a relative late maturity in the Spanish lineage. Our results provide evidence that different selective pressures can precipitate different changes in life history that lead to similar size shifts.
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14
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Choi R, Smith M, Clarke E, Little C. Cellular, matrix, and mechano-biological differences in load-bearing versus positional tendons throughout development and aging: a narrative review. Connect Tissue Res 2018; 59:483-494. [PMID: 30231648 DOI: 10.1080/03008207.2018.1504929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Summarise available evidence comparing the cellular, biochemical, structural and biomechanical properties, and the changes that occur in these parameters in response to stimuli, in differentially loaded tendons across different stages of life. METHODS The PubMed database was searched for literature pertaining to differences between tendons using the term "tendon" or "tendinopathy", plus one or more of the following descriptors: "loading", "positional", "weight- or load-bearing", and "energy-storing". The abstracts were reviewed and relevant full-length articles retrieved and used to assemble a narrative review. RESULTS The incidence and prevalence of tendon disorders ("tendinopathies") is increasing in Western societies, with limited evidence that currently available treatments have any significant long-term effect on the disease course. A key emerging hypothesis is that disease in different tendons and even different regions within a tendon may be distinct. The available literature indicates that there are phenotypic differences, not only in the constitutive compositional and material properties but also in resident cells of positional compared with load-bearing tendons. Evident during early tendon growth, such differences have become well established by adulthood. CONCLUSIONS The pheno-endotype of tendinopathy may be distinct between load-bearing tendons compared to positional tendons, which has translational implications with regard to preventing and managing tendinopathy. Better understanding of the molecular, cellular, and biomechanical pathophysiology underlying disease phenotypes, will allow more targeted/personalised treatment and therefore improve outcomes.
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Affiliation(s)
- Rachel Choi
- a Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research and Kolling Institute, Sydney Medical School , University of Sydney, at Royal North Shore Hospital , St Leonards , Australia.,b Murray Maxwell Biomechanics Laboratory, Institute of Bone and Joint Research and Kolling Institute, Sydney Medical School , University of Sydney, at Royal North Shore Hospital , St Leonards , Australia
| | - Margaret Smith
- a Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research and Kolling Institute, Sydney Medical School , University of Sydney, at Royal North Shore Hospital , St Leonards , Australia
| | - Elizabeth Clarke
- b Murray Maxwell Biomechanics Laboratory, Institute of Bone and Joint Research and Kolling Institute, Sydney Medical School , University of Sydney, at Royal North Shore Hospital , St Leonards , Australia
| | - Christopher Little
- a Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research and Kolling Institute, Sydney Medical School , University of Sydney, at Royal North Shore Hospital , St Leonards , Australia
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15
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Cappai MG, Picciau M, Dimauro C, Cherchi R, Pinna W. Circulating Levels of Total Cholesterol and Alkaline Phosphatase in Healthy Foals From Weaning to 18 months of Age Vary Significantly in Relation to Growth Stage. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2017.12.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Van Thielen B, Willekens I, Van der Schicht A, Pestieau P, Verhelle F, Goossens P, Decoster R, Jacqmot O, Delperdange P, Busoni V, De Mol G, Buls N, Provyn S, Kichouh M, de Mey J, Murray R. Radiography of the distal extremity of the manus in the donkey foal: Normal images and quantitative characterization from birth to 2 years of age: A pilot study. Anat Histol Embryol 2017; 47:71-83. [PMID: 29210097 DOI: 10.1111/ahe.12326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 10/24/2017] [Indexed: 11/30/2022]
Abstract
This study describes a radiographic survey of the anatomical development of the distal extremity of the manus in the donkey from 0 to 2 years of age. The right distal limb of 10 donkey foals, born in the spring of 2012, underwent radiographs every month for the first 6 months of age and every 3 months during the following 18 months. Latero-medial radiographs with and without barium marker at the coronary band and dorso-palmar radiographs with both front feet in weight bearing were obtained. The distal physis of the third metacarpal bone and the proximal physis of the proximal phalanx (phalanx proximalis) were closed at the mean age of 18.6 months. The distal physis of the proximal phalanx appeared as a clear radiolucent line at 2 weeks of age and was still subtly visible in some donkeys at 24 months. The proximal physis of the middle phalanx (phalanx media) was closed at the mean age of 16.7 months. The distal physis of this phalanx was visible at birth, but closed at 4 days. The distal phalanx (phalanx distalis) was triangular at birth. At the age of 20-21 months, the palmar processes (processus palmares) were both developed. The navicular bone (os sesamoideum distalis) was developed at the mean age of 9 months. The proximal sesamoid bones (ossa sesamoidea proximalia) were seen in continuously development during the 24 months. It seems that the physes in the distal extremity of the manus in the donkey close at an older age than the physes in the horse.
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Affiliation(s)
- B Van Thielen
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium
| | - I Willekens
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - A Van der Schicht
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - P Pestieau
- Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium.,Naturane SA, Bastogne, Belgium
| | - F Verhelle
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - P Goossens
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - R Decoster
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - O Jacqmot
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - P Delperdange
- Naturane SA, Bastogne, Belgium.,Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium
| | - V Busoni
- Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium.,Naturane SA, Bastogne, Belgium
| | - G De Mol
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - N Buls
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - S Provyn
- Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium.,Animal Health Trust, Suffolk, UK
| | - M Kichouh
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - J de Mey
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - R Murray
- Animal Health Trust, Suffolk, UK
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17
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Nganvongpanit K, Soponteerakul R, Kaewkumpai P, Punyapornwithaya V, Buddhachat K, Nomsiri R, Kaewmong P, Kittiwatanawong K, Chawangwongsanukun R, Angkawanish T, Thitaram C, Mahakkanukrauh P. Osteoarthritis in two marine mammals and 22 land mammals: learning from skeletal remains. J Anat 2017; 231:140-155. [PMID: 28542897 DOI: 10.1111/joa.12620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2017] [Indexed: 11/28/2022] Open
Abstract
The occurrence of osteoarthritis (OA) in marine mammals is still questionable. Here we investigated the prevalence of OA in marine (dolphin and dugong) and terrestrial mammals (Asian elephant, Asiatic buffalo, camel, cat, cattle, deer, dog, domestic goat, horse, human, hyena, impala, lion, Malayan tapir, Assam macaque, mule, pig, rabbit, red kangaroo, sheep, tiger and waterbuck). Skeletal remains obtained from five institutes were used as subjects; a total of 45 different parts (locations) of bones were observed for OA lesions. The prevalence of OA was reported as number of OA lesions/total number of bones. Our results revealed that the presence of OA in marine species (dolphin and dugong) was 2.44% and 3.33%, respectively. In dolphins, the highest OA occurrence was on the left and right humeral trochlea, with 13.68% and 12.63%, respectively, while the highest number of OA lesions in dugongs was on the lumbar vertebrae (8.79%). No significant difference (P > 0.05) in the prevalence of OA between sexes in dolphins and dugongs was observed, but we found a significant difference (P < 0.05) in 24 bone locations of human bones, which had the highest OA prevalence (48.93%), followed by dogs (3.94%). In conclusion, OA can occur in marine mammals, similar to terrestrial mammals, even though their natural habitat is the ocean.
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Affiliation(s)
- Korakot Nganvongpanit
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Ratsadakorn Soponteerakul
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Piyatida Kaewkumpai
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Veerasak Punyapornwithaya
- Department of Food Animal Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kittisak Buddhachat
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Raksiri Nomsiri
- Veterinary Conservation and Research Section, Chiang Mai Night Safari, Chiang Mai, Thailand
| | | | | | - Rachanchai Chawangwongsanukun
- Department of Pre-clinical Sciences and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - Taweepoke Angkawanish
- National Elephant Institute, Forest Industry Organization, Hang Chat, Lampang, Thailand
| | - Chatchote Thitaram
- Elephant Research and Education Center, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pasuk Mahakkanukrauh
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Excellence Center in Osteology Research and Training Center, Chiang Mai University, Chiang Mai, Thailand
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18
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Mirams M, Ayodele BA, Tatarczuch L, Henson FM, Pagel CN, Mackie EJ. Identification of novel osteochondrosis--Associated genes. J Orthop Res 2016; 34:404-11. [PMID: 26296056 DOI: 10.1002/jor.23033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/18/2015] [Indexed: 02/04/2023]
Abstract
During the early stages of articular osteochondrosis, cartilage is retained in subchondral bone, but the pathophysiology of this condition of growing humans and domestic animals is poorly understood. A subtractive hybridization study was undertaken to compare gene expression between the cartilage of early experimentally induced equine osteochondrosis lesions and control cartilage. Of the many putative differentially expressed genes identified, eight were confirmed by quantitative PCR analysis as differentially expressed, in addition to those already known to be associated with early lesions. Genes encoding vacuolar H(+)-ATPase V0 subunit d2 (ATP6V0D2), cathepsin K, integrin-binding sialoprotein, integrin αV, low density lipoprotein receptor-related protein 4, lumican, osteopontin, and thymosin β4 (TMSB4) were expressed at higher levels in lesions than in control cartilage. These genes included 34 genes not previously identified in cartilage. Some genes identified as associated with early lesions are known chondrocyte hypertrophy-associated genes, and in transmission electron microscopy studies normal hypertrophic chondrocytes were observed in lesions. Differential expression of ATP6V0D2 and TMSB4 in the cartilage of early naturally occurring osteochondrosis lesions was confirmed by immunohistochemistry. These results identify novel osteochondrosis-associated genes and provide evidence that articular osteochondrosis does not necessarily result from failure of chondrocytes to undergo hypertrophy.
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Affiliation(s)
- Michiko Mirams
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Babatunde A Ayodele
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Liliana Tatarczuch
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Frances M Henson
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Charles N Pagel
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Eleanor J Mackie
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia
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19
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van Weeren PR, Olstad K. Pathogenesis of osteochondrosis dissecans: How does this translate to management of the clinical case? EQUINE VET EDUC 2015. [DOI: 10.1111/eve.12435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- P. R. van Weeren
- Department of Equine Sciences; Faculty of Veterinary Medicine; Utrecht University; The Netherlands
| | - K. Olstad
- Department of Companion Animal Clinical Sciences; Faculty of Veterinary Medicine and Biosciences; Norwegian University of Life Sciences; Oslo Norway
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20
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Abstract
Osteochondrosis is defined as a focal disturbance in endochondral ossification. The cartilage superficial to an osteochondrosis lesion can fracture, giving rise to fragments in joints known as osteochondrosis dissecans (OCD). In pigs and horses, it has been confirmed that the disturbance in ossification is the result of failure of the blood supply to epiphyseal growth cartilage and associated ischemic chondronecrosis. The earliest lesion following vascular failure is an area of ischemic chondronecrosis at an intermediate depth of the growth cartilage (osteochondrosis latens) that is detectable ex vivo, indirectly using contrast-enhanced micro- and conventional computed tomography (CT) or directly using adiabatic T1ρ magnetic resonance imaging. More chronic lesions of ischemic chondronecrosis within the ossification front (osteochondrosis manifesta) are detectable by the same techniques and have also been followed longitudinally in pigs using plain CT. The results confirm that lesions sometimes undergo spontaneous resolution, and in combination, CT and histology observations indicate that this occurs by filling of radiolucent defects with bone from separate centers of endochondral ossification that form superficial to lesions and by phagocytosis and intramembranous ossification of granulation tissue that forms deep to lesions. Research is currently aimed at discovering the cause of the vascular failure in osteochondrosis, and studies of spontaneous lesions suggest that failure is associated with the process of incorporating blood vessels into the advancing ossification front during growth. Experimental studies also show that bacteremia can lead to vascular occlusion. Future challenges are to differentiate between causes of vascular failure and to discover the nature of the heritable predisposition for osteochondrosis.
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Affiliation(s)
- K. Olstad
- Faculty of Veterinary Medicine and Biosciences, Institute of Companion Animal Clinical Sciences, Norwegian University of Life Sciences, Oslo, Norway
| | - S. Ekman
- Swedish University of Agricultural Sciences, Uppsala, Sweden
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21
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Hendrickson EHS, Olstad K, Nødtvedt A, Pauwels E, van Hoorebeke L, Dolvik NI. Comparison of the blood supply to the articular-epiphyseal growth complex in horse vs. pony foals. Equine Vet J 2014; 47:326-32. [DOI: 10.1111/evj.12278] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 04/05/2014] [Indexed: 11/28/2022]
Affiliation(s)
- E. H. S. Hendrickson
- Department of Companion Animal Clinical Sciences; Norwegian School of Veterinary Science; Oslo Norway
| | - K. Olstad
- Department of Companion Animal Clinical Sciences; Norwegian School of Veterinary Science; Oslo Norway
| | - A. Nødtvedt
- Department of Companion Animal Clinical Sciences; Norwegian School of Veterinary Science; Oslo Norway
| | - E. Pauwels
- Department of Physics and Astronomy; UGCT; Ghent University; Gent Belgium
| | - L. van Hoorebeke
- Department of Physics and Astronomy; UGCT; Ghent University; Gent Belgium
| | - N. I. Dolvik
- Department of Companion Animal Clinical Sciences; Norwegian School of Veterinary Science; Oslo Norway
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22
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Kristjansson T, Bjornsdottir S, Sigurdsson A, Crevier-Denoix N, Pourcelot P, Arnason T. Objective quantification of conformation of the Icelandic horse based on 3-D video morphometric measurements. Livest Sci 2013. [DOI: 10.1016/j.livsci.2013.09.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Perrone GM, Pérez A, Caviglia J, Barbará AC. Effects of Live Yeast (Saccharomyces cerevisiae Strain 1026) Supplementation on the Closure of Articular Growth Plates in Quarter Horse Foals. J Equine Vet Sci 2013. [DOI: 10.1016/j.jevs.2012.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Alrtib AM, Philip CJ, Abdunnabi AH, Davies HMS. Morphometrical Study of Bony Elements of the Forelimb Fetlock Joints in Horses. Anat Histol Embryol 2012; 42:9-20. [DOI: 10.1111/j.1439-0264.2012.01158.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 04/01/2012] [Indexed: 11/28/2022]
Affiliation(s)
- A. M. Alrtib
- The Faculty of Veterinary Science; The University of Melbourne; Parkville; Vic.; 3010; Australia
| | - C. J. Philip
- The Faculty of Veterinary Science; The University of Melbourne; Parkville; Vic.; 3010; Australia
| | - A. H. Abdunnabi
- The Faculty of Veterinary Science; The University of Melbourne; Parkville; Vic.; 3010; Australia
| | - H. M. S. Davies
- The Faculty of Veterinary Science; The University of Melbourne; Parkville; Vic.; 3010; Australia
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25
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Łuszczyński J, Pieszka M, Kosiniak-Kamysz K. Effect of horse breed and sex on growth rate and radiographic closure time of distal radial metaphyseal growth plate. Livest Sci 2011. [DOI: 10.1016/j.livsci.2011.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Dyson PK, Jackson BF, Pfeiffer DU, Price JS. Days lost from training by two- and three-year-old Thoroughbred horses: a survey of seven UK training yards. Equine Vet J 2009; 40:650-7. [PMID: 19165934 DOI: 10.2746/042516408x363242] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
REASONS FOR PERFORMING STUDY The first major epidemiological study of injury incidence in the UK flat racing Thoroughbred (TB), published in 1985, found lameness to be the single largest reason for days when horses failed to train. It was considered advisable to ascertain if progress has been made in reducing the problem of musculoskeletal injuries in the intervening period. OBJECTIVE To quantify injury incidence and days lost from training by 2- and 3-year-old TBs in UK training yards during 2002 and 2003. METHODS One-hundred-and-eighty-two yearling TBs were recruited at the end of 2001 and daily training and injury records maintained over the following 2 training and racing seasons. Days were defined as lost from training when a horse failed to train at a slow canter speed or faster, and could be assigned to one of 4 categories: lameness, medical, traumatic and unknown. The incidence and number of days lost due to specific injuries and medical conditions was determined by further subdividing the lameness and medical categories. RESULTS The study period provided a total of 52,601 2-year-old and 29,369 3-year-old days available for training, with 2-year-olds failing to train on a significantly greater proportion of days available than 3-year-olds. Lameness was the most important condition causing horses to miss training, with stress fractures being the most important cause of lameness. Medical conditions were a relatively minor cause of days lost from training, accounting for approximately 5% of untrained days in the 2 age groups. CONCLUSIONS In UK flat racehorses there has been little change in the proportion of days lost from training due to lameness over the last 20 years. POTENTIAL RELEVANCE This study highlights the need for further efforts to reduce the problem of lameness in the racing TB.
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Affiliation(s)
- P K Dyson
- Department of Veterinary Clinical Sciences, The Royal Veterinary College, Royal College Street, London NW1 0TU, UK
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