PMID- 16305958 OWN - NLM STAT- MEDLINE DCOM- 20070629 LR - 20181203 IS - 1000-2588 (Print) IS - 1000-2588 (Linking) VI - 25 IP - 11 DP - 2005 Nov TI - [Bone defect repair with a new tissue-engineered bone carrying bone morphogenetic protein in rabbits]. PG - 1369-74 AB - OBJECTIVE: To construct a new tissue-engineered bone with poly (D, L-lactide-co-glycolide) (PLGA), bone morphogenetic protein (BMP) and bone marrow-derived stem cells (BMSCs) and observe its effect in repairing segmental bone defects. METHODS: A 15-mm bone defect in the right radius was induced in New Zealand white rabbits, and the models were randomized into three groups to receive implantation of the tissue-engineered bone grafts constructed with PLGA carrying 5 mg BMP and about 1 x 10(6) BMSCs (experimental group), grafts of PLGA with about 1 x 10(6) BMSCs (control group), or grafts of exclusive PLGA (blank control group), respectively. The osteogenesis in the bone defect after the implantation on was evaluated X-ray films, and the histological changes of the tissues sampled from the bone defect 4, 8, and 12 weeks after operation were observed and new bone formation was measured by image analysis. RESULTS: The bone defect was completely repaired in the experimental group 12 weeks after the implantation, showing the best results among the 3 groups. The bone defects in the blank control group was filled with only fibrous and connective tissues at 12 weeks. CONCLUSION: This tissue-engineered bone constructed with PLGA, BMP and BMSCs possesses good ability in repairing segmental bone defect. FAU - Hu, Ji-jie AU - Hu JJ AD - Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. hjj0610@163.com FAU - Jin, Dan AU - Jin D FAU - Quan, Da-ping AU - Quan DP FAU - Zhong, Shi-zhen AU - Zhong SZ FAU - Chen, Jiong-hao AU - Chen JH FAU - Wei, Kuan-Hai AU - Wei KH FAU - Zhao, Jie AU - Zhao J FAU - Pei, Guo-xian AU - Pei GX LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Di Yi Jun Yi Da Xue Xue Bao JT - Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA JID - 9426110 RN - 0 (Bone Morphogenetic Proteins) RN - 0 (Bone Substitutes) RN - 0 (Polymers) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) SB - IM MH - Animals MH - Bone Marrow Cells/cytology MH - *Bone Morphogenetic Proteins/genetics/therapeutic use MH - Bone Regeneration/drug effects MH - Bone Substitutes MH - Cells, Cultured MH - Female MH - Implants, Experimental MH - Lactic Acid/*therapeutic use MH - Male MH - Mesenchymal Stem Cells/*cytology MH - Polyglycolic Acid/*therapeutic use MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - Polymers/*therapeutic use MH - Rabbits MH - Radius Fractures/*surgery MH - Random Allocation MH - *Tissue Engineering EDAT- 2005/11/25 09:00 MHDA- 2007/06/30 09:00 CRDT- 2005/11/25 09:00 PHST- 2005/11/25 09:00 [pubmed] PHST- 2007/06/30 09:00 [medline] PHST- 2005/11/25 09:00 [entrez] PST - ppublish SO - Di Yi Jun Yi Da Xue Xue Bao. 2005 Nov;25(11):1369-74.