Research Article

Ingredients from Litsea garrettii as Potential Preventive Agents against Oxidative Insult and Inflammatory Response

Figure 3

Inhibitory effect of purified ingredients on NO production in RAW 264.7 cells. Cells were treated with indicated concentrations of ingredients along with LPS (1 μg/mL) for 24 h, and then the accumulation of nitrite from the supernatants was evaluated by Griess reagent. Didox was used as a positive control and possessed an inhibitory rate of about 70% at 100 μM. Values were presented as mean ± SD (). , relative NO level; , cell viability, treated versus LPS group. Column, relative NO level; dot, cell viability. C: control.