Figure 3.

Histological examination of the ischemic cortex tissues of rats was evaluated by HE staining and TEM analysis. (a) Representative images of HE staining performed on sections from the ischemic cortex at 24 h after reperfusion in Sham, MCAO, EA pretreatment, and EA treatment groups (n = 6 animals per group). Ischemic cortex sections obtained from injured cerebral hemispheres were stained with haematoxylin and eosin and observed using Olympus microscope (×400). (b) Ultrastructure changes by transmission electron microscope (×5800). Graphs showing the ultrastructural changes of pyramidal cells, astrocyte, and blood brain barrier (BBB) in different groups (n = 6 animals per group).