Figure 1: Circulating glucose levels.

(a,b) Fasted blood glucose at baseline and three days after treatment start, (c,d) fasted plasma glucose at baseline and treatment end, and (e) glycated hemoglobin at treatment end in db/m (open) and db/db (grey) mice. Circles (ο) vehicle-treated; squares (◽) empagliflozin-treated; triangles (▵) metformin-treated; and diamonds (◊) empagliflozin + metformin co-treated. Data are means ± SEM (n = 5–11). (a,c,e): *P < 0.05 vs db/m vehicle, †P < 0.05 vs db/db vehicle, δP < 0.05 vs db/db metformin within a time point by one-way ANOVA and Tukey’s post hoc. Comparisons by Student’s unpaired t-test: significance denoted by solid lines and trends denoted by dashed lines. (b,d): #P < 0.05 delta change (▵) from baseline by Student paired t-test. N.B. (a,b): Some mice exceeded the upper limit of the glucometer, in which case the recorded blood glucose value was 33.3 mmol/L. Differences from baseline may therefore be underestimated.