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Caspase 3 immunoreactivity of the spinal cord in rats for the determination of the optimal treatment time of ginsenoside Rd (immunohistochemistry, × 400).
(A–D) 1, 3, 5, 7 days after spinal cord isch-emia/reperfusion injury. In all groups, the neurons were large and the nuclei were round, no Caspase 3 positive cells formed. Stars refer to normal nerve cells.
