Fig. 4 in Constituents promoting osteogenesis from the fruits of Psoralea corylifolia and their structure-activity relationship study

Fig. 4. Coumarins on osteogenic differentiation and mineralisation in MC3T3-E1 cell. (A1) Calcium nodules after induction for 16 days stained by 1% Alizarin Red S. (A2) Quantification assay of the calcium nodules. (B) ALP activity after induction for 7 days; *P <0.05, **P <0.01, ***P <0.001, vs Control group. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)