Figure 4B: Time course of CD44 expression. Representative photomicrographs of CD44 in renal tissue of control rat. P: Semi-quantitative scoring of CD44 immunostaining in OSOM in control, SHAM- or AA-treated rats at different timepoints after treatment. Q: Semi-quantitative analysis of CD44-positive interstitial cells in OSOM in control, SHAM- or AA-treated rats at different time-points after treatment. R-W: Representative magnified (x1000) photomicrographs of CD44 on interstitial cells in AA-treated rats at day 3 (R), day 10 (S), day 21 (T) and day 35 (U-W). Values are means ± SEM. N=6 in each group. *p ≤ 0.05 versus SHAM; #p ≤ 0.05 versus control.