骨形成蛋白对牙周膜细胞增殖和碱性磷酸酶活性的影响

目的：了解骨形成蛋白（ＢＭＰ）剂量变化对人牙周膜细胞（ＰＤＬＣ）增殖和碱性磷酸酶（ＡＬＰａｓｅ）活性的影响。方法：应用细胞培养技术、噻唑盐比色测定（ＭＴＴ）和酶动力学方法。结果：ＢＭＰ作用后的实验组ＰＤＬＣ的增殖和ＡＬＰａｓｅ活性较对照组均有明显的升高；且有一个合适的剂量范围。ＰＤＬＣ的增殖和ＡＬＰａｓｅ活性受ＢＭＰ浓度梯度影响的变化幅度并不完全一致，表现在所需ＢＭＰ用量不同。结论：可以认为ＢＭＰ能够促进人ＰＤＬＣ的增殖和ＡＬＰａｓｅ活性功能，但各自的影响机制可能还有所差异。

The effects of bone morphogenetic protein on the proliferation and alkaline phosphatase activity of periodontal ligament cell

Aim: To observe the effects of BMP on the proliferation and ALPase activity of PDL cells. Methods: Using cell culture technique, MTT and enzyme kinetics methods. Results: The proliferation and ALPase activity of PDL cells in experimental groups were significantly increased in a certain range. The concentration of BMP needed to increase the proliferation was more than that used to enhance the ALPase activity. Conclusions: BMP can improve the proliferation and ALPase activity of human PDL cells, but the mechanism may be different.