Convulsive and Neurodegenerative Effects in Rats of Some Isolated Toxins from the Tityus bahiensis Scorpion Venom

Figure 4

Photomicrographs of the CA4 hippocampal area showing a typical pattern of neurodegeneration 7 days after microinjection. The control hippocampus appears to be unaffected. The dashed arrows indicate the intact pyramidal cells, with visible nucleolus. The smooth arrows indicate picnotic neurons. Cresyl violet stain. Magnification: 140x.