“…In this study, the expression of Cyp7a1 was increased by 2.1-fold (P=.057), while the expression of Cyp7b1 was increased by 1.8-fold (P=.025). Evidence suggests that the expression of cholesterol 7-hydroxylase is regulated by a number of stimuli, including bile acids, steroid hormones, thyroid hormones, cytokines, insulin, retinoids, dietary cholesterol, taurine, 2-aminoethanesulfonic acid and the digestionresistant fraction of soybean [46,[49][50][51]. We have observed an increase in the activity of Cyp7a1 in our previous studies; however, the current study did not confirm a significant up-regulation in gene expression.…”