Table 2.

Data of MTT assay after transfected by siRNA for 24 h (mean ± SD, n = 5)

Grouping	Absorption	Inhibitory rate (%)
Untreaded group	0.444 ± 0.027	-
Lipofectin group	0.440 ± 0.029	0.9
siRNASCR group	0.438 ± 0.023	1.3
siRNA1-100 nm group	0.377 ± 0.024b	15.1
siRNA1-200 nm group	0.279 ± 0.023d	37.2
siRNA1-400 nm group	0.383 ± 0.022b	13.7
siRNA1-1000 nm group	0.395 ± 0.040	11.0
siRNA2-100 nm group	0.379 ± 0.031b	14.6
siRNA2-100 nm group	0.278 ± 0.025d	37.3
siRNA2-100 nm group	0.383 ± 0.026b	13.7
siRNA2-100 nm group	0.394 ± 0.033	11.3

^bP < 0.01,

^dP < 0.001 vs the lipofectin group.