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. 2022 Nov 24;12:20247. doi: 10.1038/s41598-022-24292-5

Figure 2.

Figure 2

Learning performance of icv. STZ-injected (‘STZ’) and vehicle-treated (‘control’) rats in the Morris water-maze at various time points post-injection. Means ± SEM of daily latency values are shown. (A) Results of old rats. *, **, ***: p < 0.05, p < 0.01 p < 0.001: significant difference between groups on days 1 2, 3 and 4 (post-hoc Duncan test following repeated measures ANOVA with significant Day × treatment interaction: F(4, 84) = 6.13, p = 0.000). (B) Results of young rats. *, **: p < 0.05, p < 0.01: significant difference between groups on days 1 2 and 3 (post-hoc Duncan test following repeated measures ANOVA with significant Day × treatment interaction: F(4, 88) = 3.88, p = 0.006). Group size of old STZ-treated rats: n = 11 at Week 4 and 6–8, n = 10 at Week 9–11, n = 8 at Week 14–15.