Asunto(s)
Colágeno/química , Colágeno/efectos de la radiación , Matriz Extracelular/efectos de la radiación , Colágenos Fibrilares/efectos de la radiación , Calor/efectos adversos , Rayos Infrarrojos/efectos adversos , Rayos Láser/efectos adversos , Animales , Calorimetría , Colágenos Fibrilares/química , Disco Intervertebral/efectos de la radiación , Conejos , Temperatura , Tomografía de Coherencia ÓpticaRESUMEN
It has been shown by biochemical analysis and differential scanning calorimetry that the connective tissue formed around a transplant as a result of sclero-reinforcing interference (capsula) is similar to intact sclera. The main component of newly formed capsules is collagen I whose fibers have a perfect structure and the amount of cross-links sufficient to provide normal thermomechanical properties. A fraction of collagen having thermally labile "immature" cross-links in capsules formed around the transplant impregraned with Panaxal has been detected by differential scanning calorimetry. It was suggested that fibroblasts in tissues of these capsules have a high synthetic activity.
Asunto(s)
Tejido Conectivo/química , Éteres/química , Prótesis e Implantes , Esclerótica/química , Esclerótica/cirugía , Animales , Rastreo Diferencial de Calorimetría , Colágeno Tipo I/análisis , Fibroblastos/química , Calor , Conejos , TemperaturaRESUMEN
Cartilaginous and connective tissues were exposed to a moderate-intensity IR laser treatment with IR radiometric temperature control. The isotherms of water sorption by dry preparations of intact and laser-treated tissues were obtained and calculated in terms of well known models. It was shown that the sorption capacity of a monolayer of tissues decreases with increasing temperature during laser treatment. Changes in the supramolecular structure of the extracellular matrix of tissues (loss of regularity) upon IR laser exposure are discussed.