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Effect of exercise on apoptosis in the hippocampus of AD mice. (a) Nissl staining of the hippocampal CA1 region. (b) The number of positive cells in the hippocampal CA1 region. Results are mean ± SD (n = 8/group). ∗P < 0.05 and ∗∗P < 0.01 vs. group C; #P < 0.05 and ##P < 0.01 vs. group M. Scale bar: 50 μm.
