Fig. 2

a, b Liver indices and IR indices of the rats in each group compared by one-way analysis of variance (ANOVA) followed by the least significant difference (LSD) multiple comparison test. ##P < 0.01 compared with Group N, **P < 0.01 compared with Group M. c, d ALT and AST levels in each group compared via the Kruskal–Wallis H test. *P < 0.05 compared with Group M, **P < 0.01 compared with Group M