Fig. 1.

Photomicrographs of sections in the frontal area of cerebral cortex (EPL) (H&E, ×400). (A) of a rat in group 1 showing multiple pyramidal (p), few stellate (s) and few granule (gr) neurons. Note few glial cells (g) in neuropil. (B) of a rat in group 2 showing 4 acidophilic masses (m) exhibiting dark nuclei and surrounded by a clear space. Multiple deformed (d), few pyramidal (p) and granule (gr) neurons are seen. Note multiple glial cells (g). (C) of a rat in group 3 showing an acidophilic mass (m) exhibiting dark nuclei and surrounded by a clear space. Few deformed (d), some pyramidal (p) and few stellate (s) neurons are seen. Note some glial cells (g). (D) of a rat in subgroup 4a showing few deformed (d), multiple pyramidal (p) and few stellate (s) neurons. Note few glial cells (g). (E) of a rat in subgroup 4b showing 2 small acidophilic masses (m) exhibiting dark nuclei and surrounded by a clear space. Few deformed (d), multiple pyramidal (p) and few stellate (s) neurons are seen. Note few glial cells (g).