Fig. 2

Urine appearance, volume, and hematuria after protamine/lipopolysaccharide-induced interstitial cystitis (n = 5). a Urine appearance of the interstitial cystitis (IC) group was most turbid by visual observation. The urine of the IC + urine-derived stem cell (USC) group was remarkably more turbid than that of the control group (N) and less turbid than that of the IC group at 4 days after IC induction. b The number of red blood cells (RBC)/μL in the urine. c Twenty-four-hour urine volume by the end of 4 days in all groups. Data are expressed as the mean ± SD. *P < 0.01, versus the control group; ^# P < 0.05, versus the IC group