IL1B and pulmonary fibrosis: - ↓ pulmonary inflammation: ↓ TNFα and IL-1β - ↓ lung induced oxidative stress (3NT; 4HNE) - ↓ lung fibrosis: ↓ fibrosis score (Szapiel Score), ↓ level of TGFβ, ↓ hydroxyproline content