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- W2380491274 abstract "Objective To evaluate osteogenetic effectiveness of hyaluronic acid (HA) mixed with adenovirus mediated human bone morphogenetic protein-2 gene(Adv-hBMP-2) transfected bone marrow derived mesenchymal stem cells(BMSCs) of rabbits in the repair of radial shaft defects of rabbits. Methods The BMSCs were collected from bone marrow of rabbits, cultured and transfected by Adv-hBMP-2 in vitro. The radial shaft defects (1.5 cm) models of 20 rabbits (40 sides) were created and then respectively injected the cells and/or materials according to the following four groups (n=10): Ⅰ, Adv-hBMP-2 transfected BMSCs+HA; Ⅱ, Adv-hBMP-2 transfected BMSCs; Ⅲ, HA; Ⅳ, control. Results The bone defects of 6 out of 8 sides in the group Ⅰ were repaired completely and partial bone marrow cavities were revasculized. Only 3 sides were repaired completely in the group Ⅱ and no side was repaired completely in the groups Ⅲ and control. There were statistic significance between each groups in X-ray scores. In the groups ofⅠand Ⅱ, much woven callus formed in the sites of the bone defects in the 4-8th week after injection. Partial bone marrow cavities were revasculized in the 12th week after injection; while in the groups of HA and control, the sites of bone defects were mainly full of fibrous tissue and no healing happened. Both ends of the bone defects were hardened. There was significant difference statistically in the new trabecular bone area in the groups ofⅠand Ⅱ. The maximum vertical loading and elastic modulus were significant differenct in the group ⅠandⅡ. The ratios of average maximum vertical loading/normal value of radial shaft in the groups ofⅠandⅡwere 75.86% and 45.45%, respectively. Conclusion The tissue-engineered bone made by HA mixed with Adv-hBMP-2 transfected BMSCs can repair the bone defects in the radial shaft of rabbits. HA is a safe, effective carrier for tissue engineering." @default.
- W2380491274 created "2016-06-24" @default.
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- W2380491274 date "2005-01-01" @default.
- W2380491274 modified "2023-09-23" @default.
- W2380491274 title "Hyaluronic acid mixed with BMP-2 gene transfected bone marrow derived mesenchymal stem cells for repair of diaphyseal defects in rabbits" @default.
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