0000000000076485
AUTHOR
Carmen M. Antolinos-turpin
showing 3 related works from this author
Biostable Scaffolds of Polyacrylate Polymers Implanted in the Articular Cartilage Induce Hyaline-Like Cartilage Regeneration in Rabbits
2017
[EN] Purpose: To study the influence of scaffold properties on the organization of ¿in vivo¿ cartilage regeneration. Our hypothesis is that stress transmission to the cells seeded inside the scaffold pores or surrounding it, which is highly dependent on the scaffold properties, determine differentiation of both mesenchymal cells and dedifferentiated autologous chondrocytes. Methods: Four series of porous scaffolds made of different polyacrylate polymers, previously seeded with cultured rabbit chondrocytes or without cells preseeded, were implanted in cartilage defects in rabbits. Subchondral bone was always injured during the surgery in order to allow blood to reach the implantation site an…
Micropartículas de PLLA y CHT como andamiaje para la regeneración del cartílago articular: Modelo animal.
2020
espanolLa naturaleza avascular del cartilago ha supuesto que historicamente las lesiones osteocondrales hayan tenido mal pronostico. Una de las opciones de tratamiento para dichas lesiones es el uso de andamiajes, siendo superior respecto a otras tecnicas que consiguen un fibrocartilago como resultado. Hemos elaborado microesferas de PLLA y CHT para usarlos como andamiaje en lesiones osteocondrales producidas a conejos albinos New Zealand. Se distribuyeron grupos con diferentes proporciones de microesferas, asi como un grupo control con la lesion sin tratar. Se analizo tambien el cartilago nativo de la rodilla contralateral. Se evaluaron las muestras para establecer la calidad del cartilago…
A cell-free approach with a supporting biomaterial in the form of dispersed microspheres induces hyaline cartilage formation in a rabbit knee model
2020
The objective of this study was to test a regenerative medicine strategy for the regeneration of articular cartilage. This approach combines microfracture of the subchondral bone with the implant at the site of the cartilage defect of a supporting biomaterial in the form of microspheres aimed at creating an adequate biomechanical environment for the differentiation of the mesenchymal stem cells that migrate from the bone marrow. The possible inflammatory response to these biomaterials was previously studied by means of the culture of RAW264.7 macrophages. The microspheres were implanted in a 3 mm-diameter defect in the trochlea of the femoral condyle of New Zealand rabbits, covering them wi…