Effect of bumetanide on potassium transport and ionic composition of the arterial wall.


Bumetanide (B) (1 mM) decreased K content of dog carotid arteries (Ka) by 11-15%, K turnover (lambda 2) by 31%, and steady-state K fluxes (JK) by approximately 48%. The drug also reduced intracellular (ic) Cl, H2O, and occasionally ic Na. The half-maximal inhibitory concentration of B on JK was close to 40 microM. However, 10 microM still fully reduced ic K… (More)


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