Figure 2

Curcumin induces apoptotic death of chondrogenic competent cells. Chick limb bud mesenchymal cells were cultured with or without 20 µM curcumin. (A) The number of viable cells was counted on the indicated days. (B) Percentages of apoptotic cells were quantified by flow cytometric analysis on days 2 and 3 of culture. Results are averages with standard deviations of 5 independent experiments. *, statistically significant differences compared with control cells (P < 0.01).