Table 2.
Changes in the fractional excretion of H2O (EF% H2O), K (EF% K), Osm (EF% Osm), and Na (EF% Na) in Sham, BUO-1, BUO-2, and BUO-7 rats.
| Sham (n = 16) |
BUO-1 (n = 5) |
BUO-2 (n = 6) |
BUO-7 (n = 5) |
|
|---|---|---|---|---|
| EF% H2O | 0.86 ± 0.12 | 9.86 ± 1.57a,c,d | 5.04 ± 0.93a,b,d | 0.89 ± 0.10b,c |
| EF% K | 30.5 ± 2.5 | 87.6 ± 5.5a,d | 78.2 ± 8.2a,d | 39.4 ± 3.1b,c |
| EF% Osm | 2.88 ± 0.12 | 15.14 ± 2.01a,c,d | 9.81 ± 0.82a,b,d | 3.29 ± 0.28b,c |
| EF% Na | 1.28 ± 0.09 | 50.3 ± 11.6∗,a,c,d | 2.96 ± 0.15∗,b | 1.46 ± 0.08b |
Values are presented as means ± SE. BUO: bilateral ureteral obstruction; BUO-1: 1 day after releasing of BUO; BUO-2: 2 days after releasing of BUO; BUO-7: 7 days after releasing of BUO; Sham: sham-operated rats. Statistical comparison between experimental groups was made by a standard unpaired t-test ∗P < 0.05 versus Sham; or one-way ANOVA plus Newman-Keuls aP < 0.05 versus Sham, bP < 0.05 versus BUO-1, cP < 0.05 versus BUO-2, and dP < 0.05 versus BUO-7.