GGTLC1 and cholestasis: These findings were corroborated by correlations (Table 2) between IL-8 serum levels and parameters indicating cholestasis like total conjugated bilirubin (r = 0.394, p<0.001), gamma-glutamyl-transpeptidase (r = 0.308, p<0.001) and alkaline phosphatase (r = 0.402; p<0.001).