Figure 4From: Involvement of nitric oxide (NO) in cough reflex sensitivity between non-sensitized and OVA-sensitized guinea pigsEffect of L-NAME on cough reflex sensitivity, between non-sensitized and OVA-sensitized guinea pigs. L-NAME suppressed cough reflex sensitivity to the 10-4 M capsaicin solution in both groups dose-dependently. Each individual is presented in open circle, and the mean value is shown as a horizontal bar. n = 6 for each group, *p < 0.05 **p < 0.01Back to article page