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Table 1 MTT assay of UMR 106 cells

From: Chinese red yeast rice (Monascus purpureus-fermented rice) promotes bone formation

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
  1. * Unpaired t-tests with Bonferroni correction were performed to compare with the control of various RYR extract concentrations.
  2. Optical density: optical density of the purple formazan product at 570 nm
  3. NS: not statistically significant