Fig. 3.
Neurogenic inflammation. Following transient receptor potential channel, vanilloid subfamily member 1 (TRPV1) stimulation with capsaicin, the exudation of Evans blue-labeled macromolecules in the airways of weanling rats infected with PAO1 was significantly increased compared with age-matched noninfected controls (A). In contrast, microvascular permeability in adult rats infected with PAO1 was not significantly different from noninfected controls (B). Data are expressed as the means ± SE (n = 5–6 rats per group). *P < 0.05, **P < 0.01 compared with noninfected controls.