Figure 9.

Results of positive cell expression assessed by immunohistochemistry for extracellular matrix remodeling in the airway and levels of TGF- β measured by ELISA. Mean ± standard error of MMP-9, MMP-12, TIMP-1, TGF-β and total collagen fiber content, types I, III, and V assessment for all experimental groups. Values are presented in positive cells/10⁴ µm², % and pg/mL for TGF-β. *p < 0.05, compared to the SAL group; ⁺p < 0.05 comparado ao grupo PPE; ^#p < 0.05 comparado ao grupo OVA ^&p < 0.05, compared to the OVA, PPE, and ACO groups.