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PTRA attenuated cardiac oxidative stress and improved capillary density. Representative myocardial dihydroethidium (DHE, red) and immunofluorescence staining of CD31, and quantification of myocardial production of superoxide anion (DHE area %) and myocardial capillary density (CD31 area %) (n=6/group each). *p<0.05 vs. Lean+Sham; †p<0.05 vs. MetS+Sham; ‡p<0.05 vs. MetS+RVH.
