Quercetin can significantly improve lung function in pulmonary fibrosis models by enhancing cell viability, reducing the production of inflammatory cytokines Tumor Necrosis Factor-alpha (TNF-α), Interleukin-6 (IL-6), Interleukin-8 (IL-8), and inhibiting apoptosis (31). Here, CXCL8 is linked to pulmonary fibrosis.