[Quantitative study of osteoclastic related factors in the process of bone reconstruction].

OBJECTIVE: To detect the expression of osteoclast related factors, tumor necrosis factor-alpha (TNF-alpha), receptor activator of NF-kappaB ligand (RANKL) and tartrate-resistant acid phosphatase (TRAP), in the process of bone remodeling. METHODS: 8-week-old male C57BL/6J mice were employed in this study to detect the expression of osteoclast related factors by real time PCR. RESULTS: TNF-alpha, RANKL and TRAP were up regulated in the process of bone remodeling, they reached the peak on day 2, 5 and 10 individually after injury. CONCLUSION: Osteoclast related factors also participate in bone remodeling, which depends on the delicate balance between bone formation and bone resorption.