Hepatic metabolism and biliary excretion of silymarin flavonolignans in isolated perfused rat livers: role of multidrug resistance-associated protein 2 (Abcc2).

Hepatic Metabolism and Biliary Excretion of Silymarin Flavonolignans in Isolated Perfused Rat Livers: Role of Mrp2 (Abcc2)

Impact of basolateral multidrug resistance-associated protein (Mrp) 3 and Mrp4 on the hepatobiliary disposition of fexofenadine in perfused mouse livers.

The disposition of fexofenadine, a commonly used antihistamine drug, is governed primarily by active transport. Biliary excretion of the parent compound is the major route of systemic clearance. Previous studies demonstrated that fexofenadine hepatic uptake is mediated by organic anion transporting polypeptides. Recently, we showed that in mice fexofenadine is excreted into bile primarily by mu...

Multiple mechanisms are involved in the biliary excretion of acetaminophen sulfate in the rat: role of Mrp2 and Bcrp1.

Previous reports have demonstrated that sulfate metabolites may be excreted into bile by the multidrug resistance-associated protein 2 (Mrp2, Abcc2). Although recombinant human breast cancer resistance protein (BCRP, ABCG2) has affinity for sulfated xenobiotics and endobiotics, its relative importance in biliary excretion of sulfate metabolites in the intact liver is unknown. In the present stu...

Altered hepatobiliary disposition of acetaminophen glucuronide in isolated perfused livers from multidrug resistance-associated protein 2-deficient TR(-) rats.

Previous studies have demonstrated that phenobarbital treatment impairs the biliary excretion of acetaminophen glucuronide (AG), although the transport system(s) responsible for AG excretion into bile has not been identified. Initial studies in rat canalicular liver plasma membrane vesicles indicated that AG uptake was stimulated modestly by ATP, but not by membrane potential, HCO(3)(-), or pH ...

OATP and MRP2-mediated hepatic uptake and biliary excretion of eprosartan in rat and human.

BACKGROUND Eprosartan is an angiotensin II receptor antagonist, used in the treatment of hypertension and heart failure in clinical patients. The objective of this study was to clarify the mechanism underlying hepatic uptake and biliary excretion of eprosartan in rats and humans. METHODS Perfused rat liver in situ, rat liver slices, isolated rat hepatocytes and human organic anion-transportin...