Figure 3: HA density and distribution. Representative photomicrographs of HA labelling in renal tissue of control rats (A: x40 – B: x200) or AA-treated rats at days 3 (C: x40 – D: x200), 10 (E: x40 – F: x200), 21 (G: x40 – H: x200), and day 35 (I: x40 – J: x200). Dotted line (C&D) = area of necrotic PTEC. Semiquantitative scoring of HA staining density (K) in control, SHAM- or AA-treated rats at different time points after treatment. Values are means ± SEM. N=6 in each group. *p ≤ 0.05 versus SHAM; #p ≤ 0.05 versus control.