Fig. 5.

Aβ distribution (a–h) and the average IOD (i) of Aβ labeling in the hippocampus. (a–b): Aβ level in the control group, (c–d): Aβ level in the model group, (e–f): Aβ level in the electroacupuncture group, (g–h): Aβ level in the nonacupoint group. Sections were cut coronally at 4 mm. Scale bars represent 200 and 50 μm in columns 1 and 2, respectively. *P < 0.05 vs. the control group, #P < 0.05 vs. the model group, △P < 0.05 vs. the nonacupoint group. IOD, integrated optical density.