Fig. 4. Effect of UDE (Ulmus divididiana var. japonica extracts) on NO production in LPS-stimulated microglial BV-2 cells. BV-2 Cells were treated with UDE at various concentrations (100, 250, 500, 1,000 μg/mL) with or without LPS (100 ng/mL) for 24 h. The nitrite in the culture supernatant was evaluated using Griess reagent. Values with a common superscript letter within the same column are significantly different (P<0.05).