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Research Article
Grape Seed Proanthocyanidin Ameliorates Cardiac Toxicity Induced by Boldenone Undecylenate through Inhibition of NADPH Oxidase and Reduction in the Expression of NOX2 and NOX4
Figure 5
Photomicrographs of heart sections stained with PCNA-ir in the different groups. (a, b) Faint positive reaction (arrows) for PCNA-ir in control (G1) and GSPE (G2) groups. (c) A strong positive reaction (arrows) for PCNA-ir in heart sections of rats treated with Boldenone (G3). (d) PCNA reactivity was decreased significantly (moderate positive reaction for PCNA-ir in treated rats with Boldenone and GSPE) (G4).