(A) Apoptosis in the lung tissue detected by TUNEL staining (200×). (B) Number of TUNEL-positive cells in the lung tissue. Compared with normal group, *P<0.05; compared with model group, ^#P<0.05; compared with NC group, ^%P<0.05; compared with miR-143-3p mimic group, ^&P<0.05; compared with miR-143-3p inhibitor group, ^$P<0.05; compared with TAK-242 group, ^@P<0.05.