Dietary Supplementation with the Microalga Galdieria sulphuraria (Rhodophyta) Reduces Prolonged Exercise-Induced Oxidative Stress in Rat Tissues

Figure 7

Effect of prolonged exercise and G. sulphuraria treatment on rat liver, heart, and skeletal muscle enzyme activities of gluthatione peroxidase (GPX) and reductase (GR) activities. Values are mean ± S.E.M. For each value eight rats were used. GPX and GR activities are expressed as μmol NADPH min⁻¹ per g of tissue. S: sedentary untreated rats; SG: sedentary G. sulphuraria treated rats; E: exercised untreated rats; EG: exercised G. sulphuraria treated rats. Significant difference for exercised rats versus respective sedentary controls; significant difference for G. sulphuraria treated animals versus respective untreated controls. The level of significance was chosen as .