Figure 1.

Smooth muscle actin (SMA) expression decreases after treatment with bronchial thermoplasty. (A, B) Percentage of α-SMA abundance within endobronchial biopsies at Week 0, 3, and 6 after bronchial thermoplasty. *P < 0.05 by repeated measures F test followed by paired t test and Bonferroni correction as appropriate. (C, D) Representative images of endobronchial biopsies from a single patient stained for α-SMA, as demonstrated by immunoperoxidase (brown) stain, at week 0 (C) and week 6 (D). The blue dot in A indicates an individual data point outside the bulk of the group.