Abbreviations: ALT, alanine aminotransferase; AST, aspartate aminotransferase; ALP, alkaline phosphatase; TB, total bilirubin; HCV, hepatitis C virus; EVR, early virological response; SVR, sustained virological response; SD, standard deviation; RNA, ribonucleic acid; RF, reference group. The gene discussed is GPT; the disease is tuberculosis.