[Saralasin in subjects with low renin arterial hypertension]

The Authors have studied, in a group of hypertensive subjects with low renin, the behavior of arterial blood pressure, PRA, plasma aldosterone, plasma K and Na, after intravenous load of Saralasin before and after treatment with Furosmide (40 mg orally given for 4 days). In such conditions we evidenced an agonist effect of Saralasin mainly on plasma aldosterone and less on arterial pressure. The Authors conclude that Saralasin, in given conditions (free receptor sites), can exhibit on agonist effect on aldosterone secretion; such agonist effect can be augmented by dopaminergic deficit, that sometimes in present is essential arterial hypertension.