Taurocholic acid 3-sulfate (TCA3S) is a metabolite of the conjugated bile acid taurocholic acid .1Plasma levels of TCA3S are elevated in wild-type andSortilin 1(Sort1) knockout mice at 6 hours following bile duct ligation (BDL) and are further elevated inSort1knockout mice at 24 hours post-BDL.2 1.Lefebvre, P., Cariou, B., Lien, F., et al.Role of bile acids and bile acid receptors in metabolic regulationPhysiol. Rev.89(1)147-191(2009) 2.Li, J., Woolbright, B.L., Zhao, W., et al.Sortilin 1 loss-of-function protects against cholestatic liver injury by attenuating hepatic bile acid accumulation in bile duct ligated miceToxicol. Sci.161(1)34-47(2018)