NFKB1 and ischemia: A significant increase (all p < 0.05) in NF-kB concentration was observed in the reperfusion phase with approximately 60% in WKY-CONTROL, 33% in WKY-RF, 22% in WKY-RF+NaHS, 45% in WKY-RF+PAG, 40% in L-NAME-CONTROL, 29% in L-NAME-RF, 19% in L-NAME-RF+NaHS and 32% in L-NAME-RF+PAG when compared to their corresponding groups in the pre-ischemia phase (Figure 7B).