Figure 4.

Deltamethrin exposure reduces the number of Ki-67+ cells in the dentate gyrus (DG) in hippocampus of adult mice. Immunostaining of Ki-67 (pink) in the DG region of the hippocampus (A). The number of Ki-67+ cells is presented in bar graphs (B). The values represent mean cell number ± SEM per section from 10 sections per animal and 5 animals per group. An unpaired t test was used to determine significant difference between control and treatment. Asterisk indicates significantly different from control (t = 4.15; df = 8; p < .03). Scale bar = 800 µm.