Figure 5. Hippocampus.

In the hippocampal formation, similarly to the cerebral cortex, immunoreactivity for Arg (A, B, C) and ADC (F, G, H) was generally present in principal neurons (A, B, F), many interneurons (A, C, F, G), and stacks of white matter oligodendrocytes (H). Similarly, the neuropil was also differentially labelled in the dentate gyrus (DG, asterisks in A) and ammons horn (CA, white arrowheads in F). With this respect, Spds and Agm also displayed different labelling intensities (D, I black arrowheads in I and white asterisks in J). Cell body labelling for SpdS and Agm was most pronounced in interneurons (compare Fig. 2 C, D). With anti-Arg labelling most principal neurons and interneurons displayed the typical cytosolic punctate labelling pattern, in contrast to ADC labelling. The boxed areas in A, D, F, I are shown at higher magnifications in B, E, G, J, respectively. ml = molecular layer, gl = granule cell layer. Scale bars represent 400 µm in A, D, F, I; 100 µm in E; 50 µm in C,D; 20 µm in G; 10 µm in H.