FIGURE 11.
Double labeling of microglia (iba-1) and tau hyperphosphorylation (AT-100) or conformational change (Alz50) in dentate gyrus. Aged marmoset: Dystrophic microglia presented compact AT100-ir aggregates (blue arrows), but active microglia did not present any AT100-ir (white arrows). In the polymorphic layer dystrophic microglia show Alz50-ir as large cytoplasmic inclusions (blue arrows), whereas in the molecular layer, active microglia (white arrows) do not present any Alz50-ir. A magnification of the polymorphic layer showed dystrophic microglia with fragmented processes and Alz50-ir (∗), while neighboring cells were not positive for iba-1. Adolescent marmoset: Dystrophic microglia present AT100-ir as diffuse inclusions.