Giesen-Crouse E, Fandeleur P, Welsch C, Englert H, Lang HJ, Schmidt M, Imbs JL. Binding of loop diuretics to their renal receptors: use as a screening model for potential diuretic activity.
Fundam Clin Pharmacol 1988;
2:145-57. [PMID:
3402896 DOI:
10.1111/j.1472-8206.1988.tb00628.x]
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Abstract
Loop diuretics of the benzoic acid and aryloxyacetic acid families inhibit Na+K+Cl- cotransport. The ranking order of potencies measured in the thick ascending limb of Henle's loop and the ranking order of affinities for [3H]piretanide receptors on renal plasma membranes are the same. Potencies and affinities correlate well (correlation coefficient r = 0.959 for the medulla and r = 0.951 for the cortex). Therefore, measurement of [3H]piretanide binding is proposed to facilitate screening for loop diuretic action.
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