TABLE 3

IC50 values of various diuretics for organic anion uptake mediated by hOAT1 and rOAT1

S2 hOAT1 was incubated in a solution containing either 5 μM [14C]PAH in the absence or presence of various concentrations of diuretics for 2 min at 37°C. Each value represents the mean ± S.E. of eight monolayers from two separate experiments.


Diuretic

hOAT1

rOAT1a
μM
Acetazolamide 75.0 ± 6.52 1100
Bumetanide 7.60 ± 0.58 1.9
Furosemide 18.0 ± 1.10 7.4
Hydrochlorothiazide
67.3 ± 5.32
265
  • a Data from Uwai et al. (2000).