Genipin upregulates UCP2 and FAT/CD36. (A) Western blot analysis of UCP2 and FAT/CD36 expressions. The protein was isolated from the HepG2 cells after 24 h of exposure to control medium, palmitic acid (PA, 250 μmol/L) and PA plus genipin (5 μmol/L). Equal protein loading was confirmed using β-actin antibody. (B) Target proteins/β-actin is shown in the bar graph. ** p < 0.01 vs. control group, #p < 0.05, ##p < 0.01 vs. PA group (n = 4).