期刊
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY
卷 114, 期 5, 页码 S153-S159出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.oooo.2011.09.028
关键词
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资金
- Shaanxi Scientific and Technological Innovation Project Major Projects for Science and Technology Development Foundation of China [13115, 2009ZDKG-74]
- National Natural Science Foundation of China [50805141]
Objective. Large bone defects are often treated with autologous vascularized bone grafts. These operations may be associated with donor site morbidities and a limited volume of harvested bone. To overcome such issues, we prefabricated vascularized bone grafts using a combination of bone marrow mesenchymal stem cells (BMSCs) and vascular bundles in a beta-tricalcium phosphate ceramic (beta-TCP). Study Design. We used 15 New Zealand White rabbits as our experimental animals. Single photon-emission computed tomography and histologic analyses were used to evaluate angiogenesis and new bone formation of the bone grafts. Results. The results showed that axial vessels not only promoted angiogenesis of the bone grafts, but also enhanced new bone formation. Conclusion. These findings suggested that the insertion of blood vessels into tissue-engineered bone grafts was an effective strategy for enhancing angiogenesis and bone formation and had potential significance for clinical applications. (Oral Surg Oral Med Oral Pathol Oral Radiol 2012;114(suppl 5):S153-S159)
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