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hBMSCs attenuated radiation-induced aortic oxidative damage. Aortic oxidative damage was examined by immunohistochemical staining for the expressions of 4-HNE (a) and 3-NT (b), followed by semiquantitative analysis. Data were presented as means ± SD (n = 7). ∗P < 0.05 versus control group; &P < 0.05 versus IR group; #P < 0.05 versus IR + LD hBMSC group. Scale bar, 50 μm.
