Figure 3.

Immunohistochemistry of Aβ _1–42: complete view (original magnification ×100, 1 : 200); sectional view (original magnification ×200, 1 : 100); (a) normal control group: there were brown positive expressions of Aβ _1–42 inside the cell but negative outside the cell; (b) model group: there were positive expressions of Aβ _1–42 and plaque deposits with compactness outside the cell; (c) EA group: there were a few diffuse senile plaques.