Women with obstructive jaundice had elevated serum bilirubin (142 ± 43 μM), ALT (287 ± 57 IU/L), ALP (500 ± 109 IU/L), γ-glutamyl transferase (686 ± 213 IU/L), and bile acid (276 ± 51 μM) concentrations, and the diagnosis of gallstone disease was confirmed at ERCP. This evidence concerns the gene GPT and obstructive jaundice.