Figure 9.

Topographic distribution of DCX+ cellular profiles in hematoxylin-counterstained horizontal cerebral sections from a 4-year-old animal. The approximate levels of the sections relative to the lateral view of the brain are marked with a red line in the image panels. Framed areas in the low magnification panels are enlarged as indicated. The area of the amygdalar complex (Amyg) is marked with broken purple lines (C,D). In the most dorsal level section, DCX labeling is seen at the subventricular zone lining the lateral ventricle surrounded by the stratum (St) and cingulate cortex (CgC) (A,A1,A2). There are no DCX+ cells in the frontal neocortex (A3) and subiculum (A4), with no specific labeling likely related to the meninge (A3,A4). In the section at the level of the olfactory bulb (B), DCX+ cells are found across the granule cell layer of the bulb (B1), the subgranular zone of the dentate gyrus (B2). Note that in the piriform cortex (Pir), no DCX+ cells are found in the rostral segment (B3), while a few cells are present in the caudal segment near the rhinal fissure (RF) (B4). At the basal levels of the cerebrum, a large number of DCX+ cells occur in the PLN of the amygdala (C1), while labeled cells are also abundantly present over layer II in the Pir (D1). Additional abbreviations are as defined in Figure 8. Scale bars are as indicated.