Bar graphs depicting TGFβ1 (A), TGFβ3 (B) and phospho-SMAD2 (C) expressions in lung tissues of rat pups.

<p>Panel D depicts representative bands for each protein, including β-Actin, the protein which was used as a loading control for western blotting. *p<0.05 and **p<0.001 compared to Normoxia group; #p<0.05 and ##p<0.001 compared to Normoxia+VPA group; and †p<0.05 and ††p<0.001 compared to Hyperoxia group using One-Way ANOVA followed by post-hoc Tukey test.