Figure 7. Localization of manganese (Mn) superoxide dismutase and catalase in the ventral prostate of 3- and 12-month-old rats. Eight-micrometer frozen sections of the rat ventral prostate were prepared from 3- (Panels A, C, E, G, I, and K) and 12-month-old animals (Panels B, D, F, H, J, and L) before (Panels A, B, G, and H) and 4 (Panels C, D, I, and J) or 8 (Panels E, F, K, and L) days after castration. The sections were incubated with polyclonal antibodies specific for Mn superoxide dismutase (Panels A through F) or catalase (Panels G through L) as described in "Materials and Methods." Bar (Panel A) = 50 µm.