Fig. 4

The effect on regulating cholesterol disorders and mechanism of quercetin on the HepG2 cells. a-c Expression of SREBP2 and HMGCR protein were analyzed by western blotting. d Expression of SREBP2, HMGCR protein were analyzed by immunofluorescence assay. Control: control group; Que.: quercetin in different dosage groups (30, 10, 5 μmol l^− 1). Data were presented as mean ± SEM. n = 6, *p < 0.05, **p < 0.01 vs. control group