GPT and systemic lupus erythematosus: In comparison to the DC, significantly low serum concentrations of ALT, AST and ALP were observed in the CLS (222.5 ± 1.61, 120.68 ± 1.34 and 370.26 ± 7.79 U/L), BLE (242.88 ± 3.81, 130.92 ± 1.26 and 422.66 ± 18.85 U/L) and SLE (242.86 ± 8.02, 155.4 ± 1.42 and 513.2 ± 46.55 U/L) groups.