517698.fig.006a
(a)
517698.fig.006b
(b)
Figure 6: NAC and SOD inverse the effects of SAN on VEGF release from MCF-7 cells. Each histogram is the mean  ±  SD of three independent experiments. (a) Compared with normal group, , ; compared with SAN treatment alone group, a means , bb, cc, dd mean . (b) Compared with normal group, ; compared with SAN treatment alone group, a, b mean , bb mean .