Fig. 14

Representative transmission electron micrographs of mouse hippocampal cells in the 0 dpi (a-e) and 21 dpi (f-j) groups. The green, blue, red and white arrows indicate astrocytes, microglia, neurons and intercellular synapses, respectively. a-c Normal appearance and ultrastructure. f Swollen and ruptured astrocytes. g Swollen microglia. h Shrunken neurons. No obvious synapse lesions were observed in d, e, i, j (magnification: a-c, f-h, 5800×; d, i, 13,500×; e, j, 37,000×). Scale-bars: a-c, f-h, 2 μm; d, i, 1 μm; e, j, 200 nm