Table 1. Primers used for real-time PCR.

18S forward	5′-GTA ACC CGT TGA ACC CCA TT-3′
18S reverse	5′-CCA TCC AAT CGG TAG TAG CG-3′
Cyp7a1 forward	5′-TGC CTT CTG TTA CCG AGT GAT GTT-3′
Cyp7a1 reverse	5′-ACC GGC AGG TCA TTC AGT TGC ACT-3′
Cyp27a1 forward	5′-ATG TGG CCA ATC TTC TCT ACC-3′
Cyp27a1 reverse	5′-GGG AAG GAA AGT GAC ATA GAC-3′
Cyp8b1 forward	5′-GGC TGG CTT CCT GAG CTT ATT′3′
Cyp8b1 reverse	5′-ACT TCC TGA ACA GCT CAT CGG-3′
SHP forward	5′-CTT GCT AGA GGA ACC CAA CAG TGG T-3′
SHP reverse	5′-AAC ACT GTA TGC AAA CCG AGG A-3′

Cyp7a1, cholesterol 7α-hydroxylase; Cyp27a1, sterol 27-hydroxylase; Cyp8b1, sterol 12α-hydroxylase; SHP, small heterodimer partner.