In vivo assessment of marine vs bovine origin collagen-based composite scaffolds promoting bone regeneration in a New Zealand rabbit model.
Biomater Adv
; 159: 213813, 2024 May.
Article
en En
| MEDLINE
| ID: mdl-38428122
ABSTRACT
The ability of human tissues to self-repair is limited, which motivates the scientific community to explore new and better therapeutic approaches to tissue regeneration. The present manuscript provides a comparative study between a marine-based composite biomaterial, and another composed of well-established counterparts for bone tissue regeneration. Blue shark skin collagen was combined with bioapatite obtained from blue shark's teeth (mCollBAp), while bovine collagen was combined with synthetic hydroxyapatite (bCollAp) to produce 3D composite scaffolds by freeze-drying. Collagens showed similar profiles, while apatite particles differed in their composition, being the marine bioapatite a fluoride-enriched ceramic. The marine-sourced biomaterials presented higher porosities, improved mechanical properties, and slower degradation rates when compared to synthetic apatite-reinforced bovine collagen. The in vivo performance regarding bone tissue regeneration was evaluated in defects created in femoral condyles in New Zealand rabbits twelve weeks post-surgery. Micro-CT results showed that mCollBAp implanted condyles had a slower degradation and an higher tissue formation (17.9 ± 6.9 %) when compared with bCollAp implanted ones (12.9 ± 7.6 %). The histomorphometry analysis provided supporting evidence, confirming the observed trend by quantifying 13.1 ± 7.9 % of new tissue formation for mCollBAp composites and 10.4 ± 3.2 % for bCollAp composites, suggesting the potential use of marine biomaterials for bone regeneration.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Materiales Biocompatibles
/
Andamios del Tejido
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Biomater Adv
Año:
2024
Tipo del documento:
Article
Pais de publicación:
Países Bajos