Methods Cell culture technique and MTT colorimetric assay were used to evaluate the proliferation of BMSCs on the 1st, 3rd, 5th, 7th, and 10th day by adding rhBMP-2 and rhbFGF on different ways.

• 方法:采用MTT法检测单独、联合及序贯施加rhBMP一2和rhbFGF后，BMSCs在第1，3，5，7及10天增殖的状况，并进行统计学分析。