Table 1

MTT assay of UMR 106 cells

Concentration of RYR extract (g/ml)
Control
0.001
0.005
0.01

Optical density (0 hour) mean (SD)
0.196 (0.019)
-
-
-
Optical density (24 hours) mean (SD)
0.218 (0.052)
0.287 (0.018)
0.342 (0.033)
0.257 (0.040)
P-value*

0.021
< 0.001
NS
Optical density (48 hours) mean (SD)
0.177 (0.031)
0.282 (0.048)
0.293 (0.014)
0.306 (0.044)
P-value*

< 0.001
< 0.001
< 0.001
Optical density (72 hours) mean (SD)
0.360 (0.049)
0.421 (0.035)
0.360 (0.014)
0.372 (0.031)
P-value*

0.036
NS
NS

* Unpaired t-tests with Bonferroni correction were performed to compare with the control of various RYR extract concentrations.

Optical density: optical density of the purple formazan product at 570 nm

NS: not statistically significant

Wong and Rabie Chinese Medicine 2008 3:4   doi:10.1186/1749-8546-3-4