氟对骨形态发生蛋白的直接作用

目的：研究氟对骨形态发生蛋白（ＢＭＰ）活性的直接作用。方法 在纯化的ＢＭＰ中加入氟化物植再植入大鼠皮下,通过比较植入物在不同植入时间的组织学变化,碱性磷酸酶、酸性磷酸酶活性及钙含量来反映ＢＭＰ的生物活性。结果：氟对ＢＭＰ的生物活性有直接的影响,氟能促进ＢＭＰ将更多的成纤维细胞化为成骨细胞,并能增强成骨细胞的功能,加速钙盐沉积,而破骨细胞功能有所下降。结论 氟能直接影响骨形态发生蛋白的活性。

Direct effects of fluoride on activities of bone morphogenetic protein

Objective To demonstrate the direct effects of fluoride on activities of bone morphogenetic protein (BMP). Method A complex sample containing BMP and sodium fluoride was implanted under the abdominal skin of young male Wistar rats. The histiological characteristcs, and activities of alkine phosphatase and acid phosphatase of the implantan were examined to study the effects of fluoride on biological activities of BMP. Results More fibroblasts cell were transformed to osteoblats cell in animals treated by BMP with fluoride than those treated by BMP only. During bone formation induced by BMP, fluoride increased the acitivities of osteoblasts and accelerate mineralization, while inhibited the activities of osteoclast. Conclusion Fluoride can affect biological activities of BMP directly.