Histological analysis of myocardial infarction area.

<p>Infarcted area analysis showing no differences among groups. Data are expressed as mean ± SEM (n = 7). *P<0.05.</p

Interstitial collagen deposition evaluation in rat hearts.

<p>Representative images of histological sections stained with Picrosirius of Control (A), OVX+SHAM_SED (B), OVX+SHAM_ET (C), OVX+MI_SED (D) and OVX+MI_ET (E) groups. Data are expressed as mean ± SEM (n = 7). *P<0.05. Magnifier 400x. Bar: 200 µm.</p

Cardiac function measurements.

<p>(A) Left ventricular systolic pressure (LVSP) demonstrating no differences among groups. (B) Exercise training reduced left ventricular end diastolic pressure (LVEDP) in OVX+MI_ET group compared to MI which occurs in parallel with an increased +dP/dt (C). There were a decrease in -dP/dt in the MI group compared with other groups which was not restored by ET (D). Data are expressed as mean ± SEM (n  =  12). *P<0.05.</p

Morphometric parameters eight weeks after myocardial infarction and exercise training in ovariectomized rats.

<p>Data are expressed as mean±SEM. BW, body weight; UW, uterine weight; RV, right ventricle; CS, Citrate Synthase.</p>#<p> <i>P</i><0.05 vs Control;</p>†<p> <i>P</i><0.05 vs OVX+SHAM_ET;</p>‡<p> <i>P</i><0.05 vs OVX+SHAM_SED;</p>$<p> <i>P</i><0.05 vs OVX+MI_SED.</p><p>Morphometric parameters eight weeks after myocardial infarction and exercise training in ovariectomized rats.</p

Histological analysis of myocardial infarction area.

<p>Infarcted area analysis showing no differences among groups. Data are expressed as mean ± SEM (n = 7). *P<0.05.</p

Analysis of oxidative stress in cardiac tissue.

<p>Analysis of superoxide formation in sections of cardiac tissue by the dihydroethidium fluorescence. Representative images of Control (A), OVX+SHAM_SED (B), OVX+SHAM_ET (C), OVX+MI_SED (D) and OVX+MI_ET (E) groups. Data are expressed as mean ± SEM (n = 4). *P<0.05. Bar: 200 µm.</p

Myocyte cross sectional area evaluation.

<p>Representative images of histological sections stained with hematoxylin and eosin of Control (A), OVX+SHAM_SED (B), OVX+SHAM_ET (C), OVX+MI_SED (D) and OVX+MI_ET (E) groups. Data are expressed as mean ± SEM (n = 7). *P<0.05. Magnifier 400x. Bar: 50 µm.</p

Hemodynamic parameters eight weeks after myocardial infarction and exercise training in ovariectomized rats.

<p>Data are reposted as mean±SEM. HR, heart rate, SBP, systolic blood pressure, DBP, diastolic blood pressure and MAP, mean arterial pressure.</p>#<p> <i>P</i><0.05 vs Control;</p>†<p> <i>P</i><0.05 vs OVX+SHAM_ET;</p>‡<p> <i>P</i><0.05 vs OVX+SHAM_SED;</p>$<p> <i>P</i><0.05 vs OVX+MI_SED.</p><p>Hemodynamic parameters eight weeks after myocardial infarction and exercise training in ovariectomized rats.</p

Oxidant and antioxidants proteins expression.

<p>Expression of AT1 receptor (A), Gp91phox (B) and the antioxidant enzymes SOD-2 (C) and catalase (D). The densities were normalized to the control protein GAPDH. Data are expressed as mean ± SEM (n = 5). *P<0.05.</p