Keywords: ACTB; β-actin; ANOVA; analysis of variance; AP; alkaline phosphatase; BA; bile acids; Brassica; brassicasterol; Campe; campesterol; Chole; cholesterol plus 25-OH-cholesterol; Ctrl; control; CYP7A1; cholesterol-7-α-hydroxylase; DTT; dithiothreitol; EDTA;