Table 2. Inhibitory effect of breast cancer cell line MCF-7 treated with VP-16.

Groups	Dosage (g/ml)	N	OD value	Inhibitory rate (%)
control	0	3	1.2050±0.12298	-
	1	3	1.1806±0.14440	2.15
	2	3	1.1602±0.11280	3.63
	5	3	0.7684±0.19929	35.53
VP-16	10	3	0.4827±0.02650	59.72
	20	3	0.1124±0.10042	90.36
	40	3	0.1062±0.00449	91.11
	100	3	0.0554±0.01161	95.43