The authors sincerely regret these errors.

Fig. 1. Agmatine attenuated Aβ accumulation and promoted phosphorylation of IRS-1 in the STZ-icv rat model. (A) The expression of Aβ accumulation in the sham group, EC group, and STZ-Agm group. The image was shown at the magnification of 400. Scale bar: 200 µM. (B) The expression of phosphorylated IRS-1 in the sham, EC, and STZ-Agm groups in hippocampus sections. The image was shown at the magnification of 200. Scale bar: 400 µM. (C) The expression of phosphorylated IRS-1 in the sham, EC, and STZ-Agm groups in cortex sections. The image was shown at the magnification of 200. Scale bar: 400 µM. (D) The latency time of Morris water maze was measured in the sham, EC, and STZ-Agm groups. The time required to reach the platform (escape latency) was measured on each day (1-5 days). Data were expressed as mean±SEM, and were analyzed statistically using one-way ANOVA, followed by Scheffe's post hoc (^*p<0.05, ^**p<0.001 compared to Sham group, ^†p<0.05, ^††p<0.01 compared to EC group with STZ-Agm group). DAPI, 4',6-diamidino-2-phenylindole; PI, propidium iodide; p-IRS-1, phosphorylated IRS-1; STZ, streptozotocin; EC, experimental control.