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Effect of OECs on the structures of the regenerated nerves of facial nerve defected rats detected by hematoxylin-eosin staining.
(A) OECs group: The arrow points to the intact nerve fiber containing many newly generated axons and nuclei. (B) Injury group: Fewer axons and nuclei in the nerve fibers can be seen; the arrow points to scars extending into the nerve fibers and some vacuoles. Original magnification: 100×. Scale bars: 25 µm. OECs: Olfactory ensheathing cells.
