Figure 1

Lectin staining for microglia in the hippocampus (A–C) and cerebral cortex (D) of control rabbits receiving regular chow. A, C, D, microglia are distributed evenly throughout the parenchyma as resting cells showing slightly greater density in the subgranular zone of the dentate gyrus (triangle in C) and the stratum lacunosum moleculare (star in C). One of the control animals shows small foci of minimal microglial activation (arrows in B). Scale bar: 1,000 μm