Figure 8: Representative photomicrographs of CD133 (x400) in renal tissue of control rat (OSOM, A – ISOM, B) or AA-treated rats at day 21 (OSOM, C – ISOM, D). The arrow in the insert (C) shows the CD133-positive cells in the interstitium. Double immunostaining for CD133 (green) and CD44 (red) in AA-treated rats at day 21 (E, x400; F-G, x1000). Semi-quantitative analysis of CD133-positive staining in the collecting ducts (OSOM, H – ISOM, I) and in the interstitium (OSOM, J – ISOM, K) for control, SHAM- or AA-treated rats at different time points after treatment.