Fig. 3

Immunofluorescence analyses of the antioxidant enzymes in the atria of WT and Nrf2^–/– mice. a IF analysis of representative antioxidant enzymes (GCLC, NQO1, GSTµ and GSR) from cryo-sections of atria from WT and Nrf2^–/– mice (n = 3 – 4/group) under sedentary and after HIES. b Representative fluorescence intensity analyses of the immune-reactive signals obtained for the respective antioxidant enzymes. *P < 0.05 vs SED WT; ^#P < 0.05 vs SED Nrf2^–/– and ^$P < 0.05 vs HIES WT