Fig. 3

Effect of GXNT on the Y maze test in T2DM ZDF rats with DE. The rats’ cognitive ability was assessed by observing and calculating the duration of their stay in the B-arm, and the data is presented as a ratio of the time spent in the new arm to the total time spent. GXNT, Guanxinning tablet; Met, metformin. Data are expressed as mean ± SEM, n = 8. * p < 0.05, **P < 0.01 vs. normal group (Zucker lean control rats); #P < 0.05, ##P < 0.01 vs. model group