passages.id: split_4_test_2403_passage
passages.type: progene_text
passages.text: We also measured CYP27A1 mRNA and CYP7A1 mRNA in liver of humans subjected to treatment with chenodeoxycholic acid , ursodeoxycholic acid , hydroxymethylglutaryl ( HMG ) - CoA reductase inhibitor and a combination of HMG-CoA reductase inhibitor and cholestyramine .