FIGURE 13.

Toluidine blue‐stained cerebral cortex sections from rats treated with (a) normal saline (control); showing the array of well‐organized and normal morphology of the neuronal cells, granular cells (GC), and pyramidal cells (PMC) and (b) 50 mg/kg of lead (LTG) showing marked degenerations with prominent hyperchromatic cells (yellow arrow). (c) Quantitative representation of degenerated neuronal cells of the control and LTG groups. *p < 0.05 versus control, n = 5. (Toluidine blue, ×10, scale bar = 200 μm)