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canine osteoarthritis

Anna Hillström, Jonas Bylin, Ragnvi Hagman, Karin Björhall, Harold Tvedten, Kristian Königsson, Tove Fall, Mads Kjelgaard-Hansen
BACKGROUND: In a dog with joint pain, it is important to determine whether it has suppurative joint disease, characterized by exudation of neutrophils in the synovial fluid, or not, as this affects choice of diagnostic tests and treatments. The aim of this study was to evaluate whether measurement of serum C-reactive protein (CRP) concentration could be used to discriminate between dogs with suppurative arthritis and osteoarthritis (OA). Furthermore, the concentrations of serum and synovial fluid interleukin (IL) 6 concentrations were measured in dogs with joint disease and in healthy dogs, and were correlated to serum CRP concentrations...
October 28, 2016: BMC Veterinary Research
A Nagahisa, T Okumura
Grapiprant is an analgesic and anti-inflammatory drug in the piprant class that was approved in March 2016 by FDA's Center for Veterinary Medicine for the control of pain and inflammation associated with osteoarthritis (OA) in dogs. Grapiprant functions as a selective antagonist of the EP4 receptor, one of the four prostaglandin E2 (PGE2 ) receptor subtypes. The EP4 receptor mediates PGE2 -elicited nociception, and grapiprant has been shown to decrease pain in several rat inflammatory pain models. It was also effective in reducing pain associated with OA in humans, providing evidence for its mechanism of action in these species...
September 6, 2016: Journal of Veterinary Pharmacology and Therapeutics
David A Upchurch, Walter C Renberg, James K Roush, George A Milliken, Mark L Weiss
OBJECTIVE To evaluate effects of simultaneous intra-articular and IV injection of autologous adipose-derived stromal vascular fraction (SVF) and platelet-rich plasma (PRP) to dogs with osteoarthritis of the hip joints. ANIMALS 22 client-owned dogs (12 placebo-treated [control] dogs and 10 treated dogs). PROCEDURES Dogs with osteoarthritis of the hip joints that caused signs of lameness or discomfort were characterized on the basis of results of orthopedic examination, goniometry, lameness score, the Canine Brief Pain Inventory (CBPI), a visual analogue scale, and results obtained by use of a pressure-sensing walkway at week 0 (baseline)...
September 2016: American Journal of Veterinary Research
Peter Muir, Eric C Hans, Molly Racette, Nicola Volstad, Susannah J Sample, Caitlin Heaton, Gerianne Holzman, Susan L Schaefer, Debra D Bloom, Jason A Bleedorn, Zhengling Hao, Ermias Amene, M Suresh, Peiman Hematti
Mid-substance rupture of the canine cranial cruciate ligament rupture (CR) and associated stifle osteoarthritis (OA) is an important veterinary health problem. CR causes stifle joint instability and contralateral CR often develops. The dog is an important model for human anterior cruciate ligament (ACL) rupture, where rupture of graft repair or the contralateral ACL is also common. This suggests that both genetic and environmental factors may increase ligament rupture risk. We investigated use of bone marrow-derived mesenchymal stem cells (BM-MSCs) to reduce systemic and stifle joint inflammatory responses in dogs with CR...
2016: PloS One
Stella Maria Barrouin-Melo, Johanna Anturaniemi, Satu Sankari, Mikko Griinari, Faik Atroshi, Sakaewan Ounjaijean, Anna Katrina Hielm-Björkman
BACKGROUND: Oxidative stress plays an important role in the pathogenesis of disease, and the antioxidant physiological effect of omega-3 from fish oil may lead to improvement of canine spontaneous osteoarthritis (OA). METHODS: In this prospective randomized, controlled, double-blinded study, we assessed haematological and biochemical parameters in dogs with OA following supplementation with either a concentrated omega-3 deep sea fish oil product or corn oil. Blood samples from 77 client-owned dogs diagnosed as having OA were taken before (baseline) and 16 weeks after having orally ingested 0...
2016: Lipids in Health and Disease
Zoe Belshaw, Lucy Asher, Rachel S Dean
Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly prescribed by veterinary surgeons for the treatment of canine osteoarthritis, and affected dogs may receive these drugs for long periods of time. Whilst short term administration of NSAIDs to dogs is linked to adverse events such as gastrointestinal haemorrhage and renal injury, reports of adverse events associated with their long-term administration are limited in the veterinary literature. This study aimed to investigate the attitudes towards the long term use of NSAIDs for canine osteoarthritis held by three groups who manage osteoarthritic dogs in the United Kingdom: dog owners, veterinary surgeons and veterinary nurses...
September 1, 2016: Preventive Veterinary Medicine
J N Winer, B Arzi, D M Leale, P H Kass, F J M Verstraete
Maxillae and/or mandibles from 76 walruses (Odobenus rosmarus) were examined macroscopically according to predefined criteria. The museum specimens were acquired between 1932 and 2014. Forty-five specimens (59.2%) were from male animals, 29 (38.2%) from female animals and two (2.6%) from animals of unknown sex, with 58 adults (76.3%) and 18 young adults (23.7%) included in this study. The number of teeth available for examination was 830 (33.6%); 18.5% of teeth were absent artefactually, 3.3% were deemed to be absent due to acquired tooth loss and 44...
August 2016: Journal of Comparative Pathology
Dianne Little, Stephen Johnson, Jonathan Hash, Steven A Olson, Bradley T Estes, Franklin T Moutos, B Duncan X Lascelles, Farshid Guilak
BACKGROUND: The hip is one of the most common sites of osteoarthritis in the body, second only to the knee in prevalence. However, current animal models of hip osteoarthritis have not been assessed using many of the functional outcome measures used in orthopaedics, a characteristic that could increase their utility in the evaluation of therapeutic interventions. The canine hip shares similarities with the human hip, and functional outcome measures are well documented in veterinary medicine, providing a baseline for pre-clinical evaluation of therapeutic strategies for the treatment of hip osteoarthritis...
December 2016: Journal of Experimental Orthopaedics
Joakim Testuz, Judith Howard, Antonio Pozzi, Ulrich Rytz, Christiane Krudewig, David Spreng, Simone Forterre
OBJECTIVE: To evaluate the usefulness of laser Doppler flowmetry (LDF) to measure surface blood flow in canine cruciate ligaments, compare measurements in different sites of intact and partially ruptured canine cranial cruciate ligaments (CrCL) and intact caudal cruciate ligaments (CaCL), and investigate any association between surface blood flow in partially ruptured CrCL and synovitis or duration of clinical signs. STUDY DESIGN: Case-controlled clinical study...
September 20, 2016: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
James Hunt, Jo Murrell, David Knazovicky, John Harris, Sara Kelly, Toby G Knowles, B Duncan X Lascelles
Naturally occurring canine osteoarthritis represents a welfare issue for affected dogs (Canis familiaris), but is also considered very similar to human osteoarthritis and has therefore been proposed as a model of disease in humans. Central sensitisation is recognized in human osteoarthritis sufferers but identification in dogs is challenging. Electromyographic measurement of responses to nociceptive stimulation represents a potential means of investigating alterations in central nociceptive processing, and has been evaluated in conscious experimental dogs, but is likely to be aversive...
2016: PloS One
Audrey W Wanstrath, Bianca F Hettlich, Lillian Su, Ashley Smith, Lisa J Zekas, Matthew J Allen, Alicia L Bertone
OBJECTIVE: To evaluate the safety and efficacy of an intra-articular injection of autologous protein solution (APS) for treatment of canine osteoarthritis (OA). STUDY DESIGN: Prospective, randomized, blinded, placebo-controlled pilot clinical trial. ANIMALS: Client-owned dogs with single limb lameness because of OA in a stifle or elbow joint (n=21). METHODS: Lame dogs, confirmed with OA by physical and lameness examination and imaging, were randomly assigned to control or treatment groups...
August 2016: Veterinary Surgery: VS
Ricardo J R De Sousa, Kevin J Parsons, Martin R Owen, James Grierson, W Malcolm McKee, Elvin Kulendra, Neil J Burton
OBJECTIVE: To report the long-term radiographic and clinical outcome of the BioMedtrix TATE elbow arthroplasty system in dogs. Assessment was via radiographs, a surgeon-based questionnaire, and owner assessment of outcome using the Liverpool osteoarthritis in dogs (LOAD) and canine brief pain inventory (CBPI) questionnaires. STUDY DESIGN: Retrospective multicenter, case series. ANIMALS: Client-owned dogs undergoing TATE elbow arthroplasty...
August 2016: Veterinary Surgery: VS
Zhiguo Zhuang, Ji Hyun Lee, Farid Badar, Jianrong Xu, Yang Xia
Microscopic magnetic resonance imaging (µMRI) T2 data from canine cartilage at different tibial locations were analyzed to investigate the influences of spatial resolution and pixel position on the T2 sensitivity to osteoarthritis (OA). Five experimental factors were investigated: inaccurate pixel position, different pixel resolutions, different specimen orientations in the magnetic field, topographical variations over the tibial surface, and different OA stages. A number of significant trends were identified in this analysis, which shows the subtle but substantial influences to our abilities of detecting OA due to T2 changes...
August 2016: Microscopy Research and Technique
Christopher W Frye, Justin W Shmalberg, Joseph J Wakshlag
Osteoarthritis is common among aging canine and feline patients. The incidence and severity of clinical lameness are closely correlated to body condition in overweight and obese patients. Excessive adiposity may result in incongruous and excessive mechanical loading that worsens clinical signs in affected patients. Data suggest a potential link between adipokines, obesity-related inflammation, and a worsening of the underlying pathology. Similarly, abnormal physical stress and generalized systemic inflammation propagated by obesity contribute to neurologic signs associated with intervertebral disc disease...
September 2016: Veterinary Clinics of North America. Small Animal Practice
Dan G O'Neill, Richard L Meeson, Adam Sheridan, David B Church, Dave C Brodbelt
BACKGROUND: Canine patellar luxation is one of the most common orthopaedic disorders of dogs and is a potential welfare concern because it can lead to lameness, osteoarthritis and pain. However, there are limited epidemiological data on the disorder relating to the general population of dogs in England. This study aimed to investigate the VetCompass Programme database of dogs attending primary-care veterinary practices in England to report on the prevalence, risk factors and clinical management of diagnosed patellar luxation cases...
2016: Canine Genetics and Epidemiology
Stephen J Mehler, Lauren R May, Crystal King, William S Harris, Zubin Shah
BACKGROUND: Osteoarthritis (OA) in dogs is a prevalent and serious condition. The most common treatment for the clinical signs of OA in dogs is the administration of nonsteroidal antiiflammatory pharmaceuticals. Omega-3 (n-3) fatty acids have been shown to reduce the clinical signs of osteoarthritis in dogs. OBJECTIVE: The primary goals of this study were 1) to determine the effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on the clinical signs of OA in dogs, 2) to evaluate the effects of supplementation on the arachadonic acid (ARA)/ (EPA+DHA) algorithm and 3) to correlate alterations in the ARA/(EPA+DHA) with changes in the clinical signs of canine OA...
June 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
Mike Davies
In this overview of success stories in veterinary clinical nutrition topics in cats and dogs reviewed include the dietary management of chronic kidney disease, dissolution of urinary tract uroliths by dietary modification, the recognition that taurine and L-carnitine deficiencies can cause dilated cardiomyopathy; that clinical signs associated with feline hyperthyroidism (caused by a benign adenoma) can be controlled by a low-iodine diet alone; that dietary management of canine osteoarthritis can also reduce non-steroidal anti-inflammatory drug doses; and that disease-free intervals and survival times can be statistically longer in dogs with Stage III lymphoma managed with diet...
August 2016: Proceedings of the Nutrition Society
Alexander D Cigan, Brendan L Roach, Robert J Nims, Andrea R Tan, Michael B Albro, Aaron M Stoker, James L Cook, Gordana Vunjak-Novakovic, Clark T Hung, Gerard A Ateshian
Animal cells have served as highly controllable model systems for furthering cartilage tissue engineering practices in pursuit of treating osteoarthritis. Although successful strategies for animal cells must ultimately be adapted to human cells to be clinically relevant, human chondrocytes are rarely employed in such studies. In this study, we evaluated the applicability of culture techniques established for juvenile bovine and adult canine chondrocytes to human chondrocytes obtained from fresh or expired osteochondral allografts...
June 14, 2016: Journal of Biomechanics
Huub M de Visser, Harrie Weinans, Katja Coeleveld, Mattie Hp van Rijen, Floris Pjg Lafeber, Simon C Mastbergen
Several experimental models of osteoarthritis in rats are used to study the pathophysiology of osteoarthritis. Many mechanically induced models have the limitation that permanent joint instability is induced by e.g. ligament transection or meniscal damage. This permanent instability will counteract the potential beneficial effects of therapy. The groove model of osteoarthritis uses a one-time trigger, surgically induced cartilage damage on the femoral condyles, and has been validated for the canine tibia-femoral compartment...
May 16, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Thippaporn Euppayo, Puntita Siengdee, Kittisak Buddhachat, Waranee Pradit, Siriwadee Chomdej, Siriwan Ongchai, Korakot Nganvongpanit
The purposes of this study were to examine the cartilage degradation effects of triamcinolone acetonide (TA) on normal and osteoarthritic (OA) primary canine chondrocytes and cartilage explants and to examine the cartilage degradation effects of TA in combination with low-molecular-weight hyaluronan (LMWHA). To assess the effects of these drugs on cell culture, 3,[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay and real-time PCR were used to measure chondrotoxicity and determine gene expression, respectively...
August 2016: In Vitro Cellular & Developmental Biology. Animal
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