Role of dopamine1-receptors in mediating renal responses to furosemide in the rat.


1. Dopamine (DA) infusion enhanced the diuresis, natriuresis and kaliuresis evoked by furosemide, but this increase was significantly lower in the presence of SCH 23390, a selective DA1-dopaminergic antagonist. 2. Water, Na+ and K+ excretion induced by furosemide were reduced by haloperidol, and SCH 23390, whereas they were not affected by +/- sulpiride, a… (More)


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