The type of chronic bacterial infection did not affect αCGRP levels (CF patients with P. aeruginosa: 64.22 ± 12.6 pg/mL; CF patients with S. aureus: 69.1 ± 11.6 pg/mL; uninfected group: 56.24 ± 17.2 pg/mL; p = 0.063; differences between means were analyzed using Kruskal–Wallis U tests), although participants infected with P. aeruginosa or S. aureus had slightly higher concentrations of this neuropeptide. The gene discussed is NPS; the disease is cystic fibrosis.