Figure 2.

Analysis of cell cycle (A), activity of senescence-associated-β-galactosidase (B) and activity of telomerase in untreated control (▪) and 250 uM NVP treatment (▪) for 2 weeks. a and b indicate significant (P < .05) difference between untreated control and NVP treatment, respectively. The values in Figure 2(A,C) indicated mean ± SEM of three replicates in each of three DSCs. Scale: 50 μm. A representative example of three DSCs is shown in Figure 2(B).