Table 1.

Effect of yam extract on MCF-7 cell proliferation (x ± SD, n = 4).

Groups	Dose	Cell Viability
Con	—	1.00 ± 0.021
17β-E2(μM)	1	1.25 ± 0.015 **
Yam (mg/mL)	1	1.31 ± 0.023 **
	10−1	1.26 ± 0.028 **
	10−2	1.19 ± 0.022 *
	10−3	1.17 ± 0.030 *
	10−4	1.09 ± 0.027

* p < 0.05; ** p < 0.01 compared to the control group.