Figure 9.

PB+PER exposure did not alter microglial levels in hippocampi and cortices of mice, 22.5 months post-exposure. The IBA-1 stain showed no differences between exposed (B,D) and control (A,C) mice in the hippocampi and the cerebral cortices of exposed (F,H) and control (E,G) animals. Insets in (G) and (H) represent magnified images of ramified and resting microglia in both control and PB+PER exposed mice, respectively, at 22.5 months post exposure to GW agents. Representative images used 10X (A,B,E,F), and 40X (C,D,G,H) objectives, scale bars represent 100 and 20 μm, respectively. Histograms depict the quantification of the IBA-1 stain in the hippocampi and cerebral cortices from control and exposed mice as % Area per microscopic field.