Fig. 2

Effects of SE on fasting blood glucose levels (FBGLs), oral glucose tolerance test (OGTT), and insulin tolerance test (ITT) in db/db mice. a FBGLs, (b) OGTT levels, (c) area under the curve (AUC) of OGTT, (d) ITT levels, and (e) AUC of ITT. The data were presented as mean ± SD. N + : db/m +  + saline; NC: db/db + saline; PC: db/db + metformin; SE200: db/db + stevia extract 200 mg/kg BW; SE500: db/db + stevia extract 500 mg/kg BW; SV: db/db + stevioside 40 mg/kg BW. ^### p < 0.001, ^# p < 0.05 vs. N + ; ^*** p < 0.001, ^** p < 0.01, ^* p < 0.05 vs. NC