Protein expression of oxidative-stress biomarker in urinary bladder at 72 h after AIC induction (n = 6). Oxidative stress (i.e., oxidized protein) in urinary bladder at 72 h after AIC induction. DNP = 1-3 dinitrophenylhydrazone; M.W. = molecular weight (Note: Right lane and left lane shown on upper panel represent control oxidized molecular protein standard and protein molecular weight marker, respectively). *vs. other groups with different symbols, p < 0.001. All statistical analyses using one-way ANOVA, followed by Bonferroni multiple comparison post hoc test. Symbols (*, †, ‡) indicate significance (at 0.05 level). SC = sham control; AIC = acute interstitial cystitis; ECSW = extracorporeal shock wave.