Figure 11. Protein restriction (PR) did not impact changes in oxidative stress biomarkers in the liver.
Antioxidant activity in the liver of a. catalase, b. superoxide dismutase (SOD), and c. glutathione peroxidase (GPx) was unchanged as was d. antioxidant capacity in the blood measured by OxyAdsorbent test (OxyD) following 3 months of graded PR. e. Protein damage as measured by protein carbonyls in the liver and f. reactive oxygen metabolites (dROMs) were not affected by PR reduced by 20, 30 or 40% (20PR, 30PR and 40PR) compared to 12 hr ad libitum (12AL) fed C57BL/6 male mice. Data displayed as mean ± sem and shown on the same axis as Figures 5 and 6 for ease of comparison of calorie restriction (CR) and PR.