14 resultados para tendinites


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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Les tendinites sont des lésions communes chez le cheval athlète, ayant un impact financier et sportif considérable. Les cellules souches mésenchymateuses (CSMs) de moelle osseuse (MO) sont empiriquement utilisées en clinique pour améliorer la guérison des affections myoarthrosquelettiques. Cependant, il est nécessaire de standardiser les protocoles d’isolement des CSMs équines et d’analyser leurs effets sur la guérison tendineuse pour ajuster leur dose. Les objectifs de cette étude étaient de comparer 3 méthodes d’isolement des CSMs équines et d’établir un modèle de guérison tendineuse minimal invasif pour analyser l’effet des CSMs sur cette guérison. Des CSMs de MO du sternum de juments étaient isolées par 3 protocoles couramment utilisés (adhérence au pétri (Classique) et 2 méthodes par gradient de densité (Percoll et Ficoll)). La viabilité des cellules après isolement, le rendement d’isolement, le nombre de CSMs obtenues après 14 jours de culture et leurs caractéristiques fonctionnelles (renouvellement et différentiation) étaient comparés entre les 3 protocoles. Les résultats suggéraient que le Percoll était le meilleur protocole en termes de rendement et de capacité de renouvellement des cellules. La différence n’était pas significative pour leur viabilité et leur capacité de différentiation. Un modèle de guérison tendineuse, consistant en une ténectomie du tendon extenseur latéral du doigt fut ensuite développé. Cependant, la grande variabilité interindividuelle de qualité de guérison dans le groupe pilote implique une ré-évaluation du modèle. Des études futures, avec des CSMs isolées par le Percoll dans de nouveaux modèles de guérison tendineuse devraient permettre de déterminer la dose adéquate de CSMs.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Brazil has the fourth largest horse herd in the world, this is due the recognition and appreciation that the different equestrian games are having within the country. Injuries of the tendon, especially in the digital flexor tendon, are the main cause of athletic life reduction among horses. The treatment of tendinitis in horses seeks full recovery of the damage tissue reestablishing the function previously lost, however conventional treatments have proven to be ineffective when considered the quality of the scar tissue and the rate of recurrence. Due to this, the use of adult stem cells to the treatment of musculoskeletal injuries of horses has been studied for some time. This method of treatment consists of aspiration of bone marrow or removal of subcutaneous fat tissue and implantation of these cells in the injured tissue. After obtaining the bone marrow the implantation can be performed with total bone marrow, with the mononuclear fraction of MSC or with cells cultured in vitro. From the fat tissue is used the stromal vascular fraction obtained by collagenase digestion, followed or not by cell culture. According to some studies, cell therapy with material obtained from bone marrow or adipose tissue has shown to be viable, given that these materials are abundant in repair components such as mesenchymal stem cells (MSC), growth factors and other components of the collagen matrix. Several studies using both types of cells have shown great potential and promising clinical results. However, knowledge of the biology and characterization of these cells remain largely unknown, and therefore is needed great care and caution when using stem cells for the treatment of musculoskeletal disorders in horses

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A análise termográfica é uma tecnologia proveniente da engenharia e utilizada na Segunda Guerra Mundial para detecção de forças armadas inimigas. Foi aplicada inicialmente na medicina para avaliação de articulações com artrites e hoje apresenta importante função no diagnóstico de câncer de mama em mulheres. Na medicina veterinária, há mais de trinta anos é técnica de diagnóstico auxiliar na clínica de equinos, para avaliação de processos inflamatórios tais como tendinites, desmites, artrites, miosites ou ainda no diagnóstico de fraturas, lesões na coluna ou em nervos periféricos. Por ser uma técnica com alta sensibilidade, exige que seu operador tenha treinamento e doutrinamento, não só para a execução dos exames, mas também para a análise de seus resultados. Diante disso, muitos pesquisadores afirmaram que os exames termográficos de aplicabilidade científica deveriam ser realizados em local com temperatura controlada, em torno de 23oC. Ao se trabalhar com equinos, torna-se difícil encontrar ambientes amplos o suficiente e com controle de temperatura para que os exames sejam feitos, o que praticamente inviabilizaria o uso da termografia na pesquisa com cavalos. Assim, este trabalho propôs um método de padronização das temperaturas que permite realizar termografias de extremidades de membros em ambientes variando entre 18 e 35oC. O método proposto, nomeado como PadTemp, foi validado em cavalos saudáveis e aplicado em experimentos de verificação de eficácia de fármacos e de acompanhamento de cirurgias ortopédicas.

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Lasertherapy is a method of non-pharmacological treatment and surgery that can be used in several injuries and in various tissues, from bone fractures to tendonitis, skin wounds and damaged nerves, permitting the recovery of these structures and their functions without causing any side effects. Laser therapy aims to restore patients that suffered various injuries, such as bone fracture, inflammation, edema, tendon rupture, spinal cord injury, among others, without invasive intervention, and the results obtained in several studies and case reports have proven the high potential of this therapy to become an official treatment of various pathological changes

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The trimming and shoeing are of great significance in the performance and longevity of the athlete horse, and if not done or done incorrectly, cause a variety of limb injuries, which may make unusable the animal for sport, a fact of frequent occurrence, due to the small number of trained professionals in this area. The anatomy of the hoof and its functions should be maintained by maintaining the balance of the same (correct hoof trimming) and, if necessary, proper shoeing, all to avoid the hull balance alterations that lead to osteoarthritis, musculoskeletal disorders, chronic pain at the bead, synovitis, pedal osteitis, navicular disease, in addition to increase tension in the flexor tendons, suspensory ligament and proximal sesamoid causing tendinitis, desmitis and sesamoiditis proximal