Methods MG-63 cells were divided into two groups (1 G group and simulated microgravity group) after cultured for 24 h.

• 方法MG-63成骨样细胞传代于25ml培养瓶中,培养24h后细胞被随机分为模拟失重组和1G组(每组又下设立FSS作用组和无FSS作用组)。