(A) Representative Western blot images for NADPH oxidase subunits
gp91phox, p22phox, p47phox,
p67phox, and xanthine oxidase from skeletal muscle obtained from
lean and obese subjects before (Pre) and after (Post) eight weeks of aerobic
exercise training. Images of α-tubulin are provided for a loading
control. Densitometry analyses for (B) gp91phox, (C)
p22phox, (D) p47phox, (E) p67phox, (F)
xanthine oxidase expression normalized to α-tubulin. (G)
NADPH-stimulated H2O2 generation was measured as an index
of NADPH oxidase activity. Values are mean±SEM for n=5 subjects
per group. *P<0.05 vs. lean group. †P<0.05 vs.
pre-training.