Immunohistochemical staining was performed for α‐SMA and Collagen Type I. Histopathological examinations demonstrated steatosis at the 4th week, steatohepatitis with progressive fibrosis at the 6th week, advanced fibrosis with bridging at the 8th week and cirrhosis at the 12th week. The gene discussed is ACTA1; the disease is steatosis.