Exercise reverses the synapse loss during aging.

Abstract

<p><b>(A-B)</b> Representative positive immunofluorescence staining of synaptophysin in the cortex (A) and hippocampus (B) in four groups. <b>(C-D)</b> Summary of the mean fluorescence density in the cortex (C) and hippocampus (D) in four groups. Values are mean and standard error of the mean, n = 5 in each group. ** P< 0.01 vs. YC, ^#P< 0.05 vs. O-SED, ^& P< 0.05 vs. O-LEX. Bar = 100 μm.</p