The effect of palmitic acid (PA) and magnesium isoglycyrrhizinate (MGIG) on the proliferation of HepaRG cells, evaluated via Edu488. (A) Typical image of control cells without drug treatment; (B) Typical image of cells after administration of 0.2 mM PA for 24 h; (C) Typical image of cells after administration of 0.2 mM PA plus 0.25 mM MGIG for 24 h; (D) The fluorescence intensity of Edu488 in the three tested groups (mean ± SD, n = 3). In the image, the scale bar is 200 μm, the blue is the nucleus (Hoechst 33342 staining), and the green is the newly synthesized DNA strand (EdU488 staining). One-way ANOVA analysis was applied for data comparison between groups; “ns” means p > 0.05, * means p < 0.05, and ** means p < 0.01.