Figure 4: SULT2A1 mRNA induction by cholic acid in mouse liver. Sult2A1 mRNAs in mouse livers were assayed by semi-quantitative RT-PCR. Cholic acid, a primary bile acid, was added to diet at 1% w/w. Data are for 3 individual mice (6-month-old, male) from the control and experimental group. Levels of β-actin mRNAs served as the normalization control (B. Chatterjee & CS Song, unpublished).