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Effect of PSP on myocardial oxidative stress induced by D-galactose in mice. (a, b) Representative images of DHE fluorescence for determining ROS level (magnification, ×200). (c, d) The contents of MDA and ROS in the myocardium. Data are mean ± SEM; n = 6. ∗∗P < 0.01 vs. Con; #P < 0.05 and ##P < 0.01 vs. D-gal.
