Research Paper Volume 10, Issue 6 pp 1356—1365

Aged cells in human skeletal muscle after resistance exercise

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Figure 3. Phagocytic macrophage (CD68+) in human skeletal muscle after resistance exercise. (A) Representative immunohistochemical staining of a muscle cross-section (CD68+ macrophage indicated by an arrow). Scale bar 100 μm. (B) Low protein supplementation before and after resistance exercise enhanced CD68+ macrophage infiltration in skeletal muscle above High protein trial. * Significant difference against Baseline, P < 0.05; † Significant difference against Low Protein, P < 0.05. Low protein: 14% protein; High protein: 44% protein in weight.