Table 4. Dynamic change of TGF-β1 in the lungs of the three groups (mean±SD, ng/L).

Groups	PQ group	Bosentan therapy group	Control group
Day 3	87.22±12.74	82.97±14.28	69.89±7.01
Day 7	89.33±12.88	77.41±9.10	70.01±7.05
Day 14	92.85±14.02	74.20±7.26	70.10±7.17
Day 21	105.74±12.69	70.44±9.20	70.07±7.24