Cells were seeded in 24-well plates and treated with sesamin at 5 and 10 μg/ml up to 14 days. For all experiment periods, cells were maintained in osteogenic media, and media was changed every three days. ALP activity was detected using an alkaline phosphatase detection kit (Sigma-Aldrich). Briefly, the conditioned media were collected and 20 μl of media were incubated at 65 °C to diminish the background activit