Figure 4.
Neurons in the retrosplenial cortex and CA1 subregion of the hippocampus of Tg + mice following chronic administration with 20 mg/kg (panel a and b) and 5 mg/kg (panel c and d). The neurons have a normal morphological appearance without cytoplasmic vacuoles in both the retrosplenial cortex (panel a and c) and CA1 of the hippocampus (panel b and d). However, a few dark stained cells in the retrosplenial cortex showed the feature of degeneration (panel a, arrows indicated). Bar in panel d also applies to a, b and c.