Utilização de células-tronco de tecido adiposo humano em lesões de cartilagem articular de coelhos

Detalhes bibliográficos
Ano de defesa: 2017
Autor(a) principal: Vendramini, Alex Augusto lattes
Orientador(a): Payão, Spencer Luiz Marques lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade do Sagrado Coração
Programa de Pós-Graduação: Biologia Oral
Departamento: Ciências da Saúde e Biológicas
País: Brasil
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://tede2.usc.br:8080/jspui/handle/tede/362
Resumo: Osteoarthritis is the most common joint disorder in the world, which occurs in the majority of people from 65 years of age. One of the most affected joints is the knee, impacting on functioning and independence, and is among the top 10 causes of disability worldwide. With the aging population, the prevalence of osteoarthritis (OA) is increasing, and its consequences are having significant impact on society. Thus, one of the goals of modern medicine is to improve the quality of life of this affected population. Recent research focuses on the study of mesenchymal stem cells for the regeneration of cartilaginous tissue. This study aims to evaluate the potential for regeneration of articular hyaline cartilage and rabbit knee synovial membrane from a critical defect using human adipose tissue stem cells (HASCs). Total cartilage thickness defects were created in the patellar sulcus of rabbits. Three experimental groups were studied: group 06 weeks, group 12 weeks and group 24 weeks. In all groups, critical defects were created in both knees. Right knees received stem cell application and the left knees received application of glycosylated physiological solution (control). The degree of joint repair was analyzed through the Histologic Scale for Osteochondral Defects of O'Driscoll and inflammation of the synovial membrane through the Krenn's Synovitis Score. The evaluations showed no statistically significant difference, but it was possible to verify a quantitative and qualitative improvement in articular cartilage repair and in the degree of synovitis in the knees of the animals that received the application of stem cells derived from human adipose tissue, in relation to the knees of the animals that received physiological solution (controls). The results have shown to be beneficial and promising, but additional studies should be performed