Fig. (1) Relative tissue hydration in UUO. Kidneys from sham operated rats and kidneys from rats with 3 and 10 days of UUO respectively. Expressed as mean +/- standard deviation. SHAM = sham operated animal, 3d = 3 days, NL = non ligated, L = ligated, 10d = 10 days. *p<0.001 vs sham and time-matched NL kidney; #p<0.05 10 d L vs 3 d L.