Fig. 2

Effects of XF and SBXF on NO production (a), iNOS mRNA expression levels (b) in LPS-stimulated RAW 264.7 cells. (a) Raw 264.7 cells were pretreated with LPS for 2 h, then cells were treated with XF or SBXF water extract in the presence of LPS for another 24 h. NO production was determined by the Griess reagent. (b) Raw 264.7 cells were pretreated with LPS for 2 h, then cells were treated with XF or SBXF water extract in the presence of LPS for another 18 h. iNOS mRNA expression was assessed by real-time PCR. All data were presented as mean ± SD. **p<0.01 vs. control; &&p<0.01 vs. LPS; ^# p<0.05, ^## p<0.01 vs. XF