Fig. 5From: Microglial response to increasing amyloid load saturates with aging: a longitudinal dual tracer in vivo μPET-studyMicroglial brain fraction was maximal at small plaques. β-amyloid plaques of radius increasing from 3 to 30 μm are illustrated according to their size (white numeral in upper left corner). Each pane shows Methoxy-X04 stained plaque (cyan) together with the Iba-1 immunosignal (magenta). Scale bar 40 μmBack to article page