Table 1.

Determination of the effect of Vietnamese Sophora Root on B₁₆BL₆ cell proliferation by MTT assay (n=6, x±S)

Concentration µg/ml	OD value	Inhibition rate (%)
Control group	1.078±0.153
800	0.786±0.058**	27.09
700	0.899±0.082	16.60
600	1.036±0.126	3.90
500	1.093±0.104	−1.39
400	1.125±0.147	−4.36

Comparison with control group,

^**P<0.01,

^*P<0.05