ABCB4 and cholestasis: In summary, Danning tablets provides protection from ANIT-induced cholestasis with liver injury through adaptive responses in both the kidney and liver that enhance the expressions of hepatic canalicular efflux transporters (Bsep and Mdr2), renal efflux transporter Ostβ and bile acid-detoxifying enzyme (Cyp2b1 and Ugt1a1) and attenuate the hepatic Mrp2 translocation, accompanied by further increase in urinary and biliary excretion of bile acid and bilirubin.