Determine the effect of BBC-containing serum on absorption of lacuna formed by OC in osteoblast and osteoclast co-culture system by toluidine blue staining.

• 运用甲苯胺蓝染色法观察含药血清对成骨细胞-破骨细胞共育体系中OC形成骨吸收陷窝的影响。