ATP8B1 and hepatitis B virus infection: The differential bile acids between ICP1 group and hepatitis B group were GCDCA, GCA, CDCA, TCDCA, and TDCA, and the concentration of TDCA in ICP1 group was higher than hepatitis B group, while the concentration of GCDCA, GCA, CDCA, and TDCA were lower than hepatitis B group (P < 0.05) (see Fig. 3, Table 5).