Fig. 1. Effects of diabetes and cinnamic acid on memory retention in mice.

(A) Step down latency before treat. (B) Step down latency after 20 days. (C) Step down latency after 40 days. Each value was presented as means±SEM (n=8). Letter a: Significantly different from control group (p<0.05), Letter b: Significantly different from diabetic group (p<0.05), a^* and b^*: p< 0.01, a^** and b^**: p< 0.001. p values were from one-way ANOVA, followed by Tukey's test for multiple comparisons.