“ Enalapril treatment significantly enhanced the total antioxidant status (TAS) (… < 0.001), reduced the oxidized glutathione ratio ( GSH : GSSG) (P < 0.001), and reduced to thibarbituric acid reactive substances (TBARS) (P < 0.001) and protein carbonyl content (PCO) (P < 0.001), which thus reduced the oxidative stress in the heart.”