Figure 2.

The 70% ethanol extract of male flowers of E. ulmoides suppressed the lipopolysaccharide-induced release of nitric oxide in the RAW 264.7 cells. (A) Secretion of NO in LPS stimulated RAW 264.7 cells. ^∗P < 0.05 vs. LPS only treatment (n = 3). (B) Nonparametric tests of NO level, r² = 0.945. LPS only treatment: Cells were treated with 1 μg/mL LPS in Dulbecco modified Eagle's medium containing 10% fetal bovine serum. EF: 70% ethanol extract of male flowers of E. ulmoides; TGs: Tripterygium glycosides; NO: Nitric oxide; LPS: Lipopolysaccharide.