Fig. 5.
Production of superoxide radicals (O2 –) and expression of antioxidant enzymes during MSC expansion, with or without methylene blue (MB) addition. a Quantification of superoxide radicals was carried out by MitoSOX staining (n = 3; values represent the mean ± SEM). *p < 0.05. b Mitochondrial (MnSOD) and cytosolic superoxide dismutase (Cu/ZnSOD) Western blots were performed on proteins isolated from the same samples, and c results were normalized to actin