Fig. 4. Aβ1-42, Iba1, and GFAP expression in mouse brain after PM2.5 exposure. (A) The expression of Aβ1-42. (B) The expression of Iba1. (C) The expression of GFAP. Each of the four images (a, b, c, and d) represent the four different exposure groups (0 mg kg–1 day–1, 0.193 mg kg–1 day–1, 1.93 mg kg–1 day–1, and 19.3 mg kg–1 day–1 PM2.5, respectively).
