(a)
(b)
Figure 4: H&E stained sections of hearts at 20x magnification. (a) Heart sections of control SD rats showing normal myocardium. Note the presence of the myocardial fibres with no necrosis and coronary vessels carrying blood normally to the heart . (b) Heart sections of treated animals (2000 mg/kg) showing normal histology and branched myofibrils.