Fig. 5: NaB enhanced the effect of GLP-1 on HepG2 cells.

a Schematic illustration of treatment groups 1, 2, 3, and 4 in the following panels b and c. b Triglyceride levels in HepG2 cells that were treated with the combination of GLP-1 and NaB or treated with GLP-1 alone; treatments of groups 1–4 are shown in panel a. c Western blot analysis of p-AMPK, p-ACC, insulin receptor, and IRS-1 expression in HepG2 cells that were treated with the combination of GLP-1 and NaB or treated with GLP-1 alone; treatment of groups 1–4 are shown in a. The data represent the means ± S.E.M.; vs. control *P < 0.05, **P < 0.01, and ***P < 0.001; vs. FFA ##P < 0.01 and ###P < 0.001; & P < 0.05