Figure 1. The expression levels of BA synthases in hiHeps and PHHs.
(A) The typical epithelial morphologies of hiHeps and PHHs, as determined by light phase contrast microscopy. (B) The mRNA expression levels of BA synthases (i.e., CYP7A1, CYP8B1, and CYP27 A1) and the upstream nuclear factors (i.e., FXR, CAR, and PXR) in hiHeps. as determined by qRT-PCR. The data are expressed as the mean ± SD (n = 3). *p < 0.05 relative to PHHs. (C) Comparison of the protein expression levels of CYP7A1 and FXR among hiHeps, PHHs and SCHHs by western blotting (left) and gray intensity analysis (right). β-ACTIN was used as a reference control.