![]() New bone formation was detected in all treated animals, with the highest amounts found in the treatments that included animals that combined the PF implant with rhBMP2. Assessments of bone repair include histological analysis, bone formation at the site of implantation using quantitative microCT, and assessment of implant degradation. The hydrogels containing a combination of 7.7 μg/ml of rhBMP2 and 2.5 × 10 6 cells/ml hEPCs were compared to control hydrogels containing 7.7 μg/ml of rhBMP2 only, 2.5 × 10 6 cells/ml hEPCs only, or bare hydrogels. The hydrogel implants were formed ex-situ and placed into defects in the tibia of athymic nude rats and analyzed for bone repair after 13 weeks following surgery. The safety and efficacy of the implant were tested in a rodent model of a critical-size long-bone defect. ![]() ![]() The biodegradable implants made from polyethylene glycol (PEG) and denatured fibrinogen (PEG-fibrinogen, PF) were loaded with 7.7 μg/ml of rhBMP2 and 2.5 × 10 6 cells/ml hEPCs. Physiological doses of the recombinant human bone morphogenic protein-2 (rhBMP2) were delivered in a sustained manner from a biodegradable hydrogel containing peripheral human blood-derived endothelial progenitor cells (hEPCs). The ability to repair critical-sized long-bone injuries using growth factor and cell delivery was investigated using hydrogel biomaterials.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |