GSR and Cerebral ischemia: The activities of antioxidant enzymes catalase (CAT), glutathione reductase (GR), and glutathione peroxidase (GPx) were assessed 48 h after the induction of cerebral ischemia in the plasma from mice fed with LFD, HFD-SFA, HFD-OO, or HFD-OO-ω3.