Figure 3:

Cell Proliferation Assay: (A) Brd-U incorporation assay shows that the Brd-U uptake rate is significantly elevated as the confluence increased until it reached 80% confluence. (B) The proliferation of BMMSCs was determined by means of population doubling final score, (C) calculated population doubling time (PDT) in passage 5 to 6 and in passage 11 to 12 and (D) population doubling at all passages. Error bars represent Mean ± SE. Asterisks * and ** indicate significant at P<0.05, P<0.01 respectively compared with non-marked groups.