Idiopathic pulmonary fibrosis (IPF) is a disease characterized by diffused alveolar inflammation and extensive interstitial fibrosis, which is related with various cells, inflammatory factors, fibrosis related cytokines, and transforming growth factor-β1 (TGF-β1) signal transduction [1, 2]. The gene discussed is TGFB1; the disease is idiopathic pulmonary fibrosis.