Stepwise verification of bone regeneration using recombinant human bone morphogenetic protein-2 in rat fibula model
Journal of the Korean Association of Oral and Maxillofacial Surgeons
;
: 373-387, 2017.
Artigo
em Inglês
| WPRIM
| ID: wpr-75899
ABSTRACT
OBJECTIVES:
The purpose of this study was to introduce our three experiments on bone morphogenetic protein (BMP) and its carriers performed using the critical sized segmental defect (CSD) model in rat fibula and to investigate development of animal models and carriers for more effective bone regeneration. MATERIALS ANDMETHODS:
For the experiments, 14, 16, and 24 rats with CSDs on both fibulae were used in Experiments 1, 2, and 3, respectively. BMP-2 with absorbable collagen sponge (ACS) (Experiments 1 and 2), autoclaved autogenous bone (AAB) and fibrin glue (FG) (Experiment 3), and xenogenic bone (Experiment 2) were used in the experimental groups. Radiographic and histomorphological evaluations were performed during the follow-up period of each experiment.RESULTS:
Significant new bone formation was commonly observed in all experimental groups using BMP-2 compared to control and xenograft (porcine bone) groups. Although there was some difference based on BMP carrier, regenerated bone volume was typically reduced by remodeling after initially forming excessive bone.CONCLUSION:
BMP-2 demonstrates excellent ability for bone regeneration because of its osteoinductivity, but efficacy can be significantly different depending on its delivery system. ACS and FG showed relatively good bone regeneration capacity, satisfying the essential conditions of localization and release-control when used as BMP carriers. AAB could not provide release-control as a BMP carrier, but its space-maintenance role was remarkable. Carriers and scaffolds that can provide sufficient support to the BMP/carrier complex are necessary for large bone defects, and AAB is thought to be able to act as an effective scaffold. The CSD model of rat fibula is simple and useful for initial estimate of bone regeneration by agents including BMPs.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Osteogênese
/
Poríferos
/
Regeneração Óssea
/
Adesivo Tecidual de Fibrina
/
Seguimentos
/
Colágeno
/
Proteínas Morfogenéticas Ósseas
/
Modelos Animais
/
Fíbula
/
Xenoenxertos
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Animais
/
Humanos
Idioma:
Inglês
Revista:
Journal of the Korean Association of Oral and Maxillofacial Surgeons
Ano de publicação:
2017
Tipo de documento:
Artigo
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