Fig. 3From: Polyphenolic-enriched olive leaf extract attenuated doxorubicin-induced cardiotoxicity in rats via suppression of oxidative stress and inflammationA Representative photomicrographs of immunohistochemical analysis of iNOS of cardiac sections from the experimental groups (a) control, (b) DOX, (c) (DOX + OL LD), (d) DOX + OL MD, and (e) (DOX + OL HD) treated groups (magnification × 400). Brown staining indicates iNOS positive cells. F Quantitative image analysis for immunohistochemical staining expressed optical densities (OD) across 10 different fields from each rat section. B Cardiac MPO activity. Cardiac iNOS data are represented as mean ± SEM. for six animals in each group. Significance was determined by one-way analysis of variance followed by Dennett’s t-test: a P < 0.05 vs. control group, b P < 0.05 vs. DOX group. 400 × magnificationBack to article page