Table II.

Growth inhibition of human NPC CNE-1 cells by alkaloids of BLSA evaluated by the MTT assay.

Treatment (µg/ml)	OD540	Inhibitory rate (%)
0	0.471±0.005a	–
50	0.376±0.010a	20.2±0.2a
100	0.249±0.014b	47.1±0.3b
200	0.088±0.012b	81.3±0.2b

Results are presented as the mean ± the standard deviation of triplicate experiments. Differences between groups were statically analyzed using Duncan's new multiple-range test

^aP<0.05

^bP<0.01 vs. the control group. NPC, nasopharyngeal carcinoma; BLSA, Ba lotus seeds; OD₅₄₀, optical density at 540 nm.