Bile acid transporter (Ntcp, Bsep) protein levels and bile acid synthetic enzyme activities in wild type and FXR-null mice fed cholic acid and chow diets: Differential regulation of mRNA and protein expression: Jaya Bollineni, UMDNJ School of Medicine, Newark, NJ; I'Kyori Swaby, The Mount Sinai Medical Center, New York, NY; Christopher Sinal, Frank Gonzalez, National Institutes of Health, Bethesda, MD; Sarah Shefer, UMDNJ School of Medicine, Newark, NJ; Frederick Suchy, Meenakshisundaram Ananthnarayanan, The Mount Sinai Medical Center, New York, NY