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(a, b) Representative images of immunefluorescent staining for TNF-α in the corpus callosum (upper panels) with histogram showing the fluorescent intensity at 28 days post-operation in the sham (n = 4), 2VGO (n = 4) and 2VO (n = 4) groups. Scale bar, 100 µm. The value is expressed as a percentage (±SEM) of the fluorescent intensity of sham-operated rats (100%).
