Yang Mei, Xiang Xuerong, Ye Guo, et al. Change of VEGF in alveolar bone remodeling stimulated by low-intensity pulsed ultrasound[J]. Journal of Chongqing Medical University, 2017,42(9):1055-1059.
Yang Mei, Xiang Xuerong, Ye Guo, et al. Change of VEGF in alveolar bone remodeling stimulated by low-intensity pulsed ultrasound[J]. Journal of Chongqing Medical University, 2017,42(9):1055-1059. DOI: 10.13406/j.cnki.cyxb.000878.
Objective:To investigate the effect of low-intensity pulsed ultrasound(LIPUS)therapy on the change of vascular endothelial growth factor(VEGF)in the process of the alveolar bone remodeling. Methods:Thirty male sprague-dawley(SD)rats were randomly divided into orthodontics group(control group)and LIPUS+orthodontics group(experimental group). From the second day following animal models of orthodontic teeth movement
the right maxillary took LIPUS(frequency 1.5 MHz
intensity 30 m W/cm
2
pulsewidth 200 μs
repetition frequency 1 kHz)by 20 minutes per day
and the left maxillary took sham LIPUS treatment. The samples were collected on the 1st day
3rd day
5th day
7th day and 14th day respectively. Immunohistochemistry and TRAP staining at each time point were performed to evaluate the effects of LIPUS on the change of VEGF and osteoclasts in the process of the alveolar bone remodeling. Results:The expressions of VEGF in the experimental groups were significantly higher than those in the control groups(P=0.000)and the numbers of osteoclast in the experimental groups were significantly higher than those in the control groups(P=0.000). Conclusion:LIPUS can effectively increase the expression of VEGF to promote alveolar bone remodeling.
关键词
低强度脉冲超声牙槽骨改建血管内皮生长因子破骨细胞
Keywords
low-intensity pulsed ultrasoundalveolar bone remodelingvascular endothelial growth factorosteoclast