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Morphological examinations of CA1 neurons by Hematoxylin and Eosin staining (40×). A, sham group; B, ischemia group; C, ischemic postconditioning group. The dead or dying neurons presented polygonal condensed nucleus and pink cytosol (arrow head). Statistics showed the living neurons in ischemic postconditioning group were 96.85±9.71 per mm, which was markedly higher than 9.12±1.87 per mm of the ischemia group. Each group contained four rats.
