Fig 7. Osteogenic gene expression for the three groups at different times after osteogenic induction.

COL I level was highest at 1 week and decreased after 1 week. RUNX2 expression achieved a maximum at 2 weeks. The OCN and OPN expression increased at 1 week and reached a maximum at 2 weeks. There was no significant difference in the four osteogenic gene levels between the three groups. No significant difference was found between the EBM and SLM groups (p>0.05).