102954.fig.004a
(a)
102954.fig.004b
(b)
Figure 4: Effects of fluoride on NO production (a), and NOS activities (b) in microglial BV-2 cells. After the cells were treated with various concentrations of NaF (1, 10, and 50 mg/L) for 24 h, NO release in culture medium and NOS activities in supernatants and medium were measured using commercial test kits. Bars were presented as mean ± SD. * and # compared to the control group.