Table 1.
V t (mV) | R t (Ω·cm2) | I eq (μA·cm−2) | |||||||
---|---|---|---|---|---|---|---|---|---|
Baseline | 3‐hr treatment | Amil. | Baseline | 3‐hr treatment | Amil. | Baseline | 3‐hr treatment | Amil. | |
Vehicle | −17.2 ± 5.9 | −16.3 ± 5.1 | 0.5 ± 0.7# | 2105 ± 342 | 2125 ± 363 | 3340 ± 650# | −7.8 ± 1.6 | −7.4 ± 1.4 | 0.1 ± 0.2# |
Aldo. | −18.1 ± 5.2 | −36.7 ± 7.4* | −5.9 ± 3.2* , # | 2277 ± 257 | 1666 ± 113* | 3261 ± 461# | −7.7 ± 1.5 | −5.9 ± 3.2* | −1.6 ± 0.8* , # |
Note. Electrometric measurements (V t and R t) were recorded, allowing calculation of equivalent short circuit current (I eq), from cells grown on filters under control (vehicle) or aldosterone‐treated conditions. Measurements were made before treatment (baseline); 3 hr after treatment (3‐hr treatment) with solvent vehicle or aldosterone (Aldo, 3 nM); and 5 min after exposure to amiloride (Amil., 10 μM). Data are mean ± 95% confidence interval (n = 12). Statistical significance was determined using a repeated‐measures two‐way ANOVA. Where appropriate, multiple comparisons were determined by Tukey's post hoc test.
P<0.05, significantly different from vehicle‐treated cells.
P<0.05, significant difference between 3‐hr treatment and amiloride.