Fig 4. CYP3A4 and PXR expression in hepatic cell line HepG2 upon rifampicin treatment.
HepG2 cells were treated with different rifampicin concentrations for 24 hrs. The fold change in expression levels of CYP3A4 and PXR are shown. The data are presented as mean ± SEM, N = 6, * = p < 0.05, ** = p < 0.01.