fig4

Figure 4. Effect of WS on suppression of growth of xenografted MDA-MB-231 cells in nude mice. The bars represent the means ± standard deviations of tumor size (mm3) (n = 10). The highest reduction (60%) relative to the untreated control was shown after 8 weeks of WS treatment (P < 0.05). Student's t-test was used to assess significant differences between treated groups and the untreated control group. WS: Withania somnifera