Cell viability of RAW 264.7 cells (4×105 cells/ml) in response to RDN and LPS.

<p>The viability of RAW 264.7 cells was determined by CCK-8 assay after incubated with indicated concentrations of RDN for 24 h supplemented with or without 1 μg/ml of LPS. **p < 0.01 represents significant difference compared with the control group.