OCLN and asthma: We studied expression of innervation markers: ubiquitin carboxy-terminal hydrolase L1 (UCHL1/PGP9.5) and occludin (OCLN) as well as genes reported to be associated with asthma: periostin (POSTN), galectin-3 (LGAL3), secretory leukocyte protease inhibitor (SLPI), IL-4, IL-5, IL-13, IL-17.