[The dopaminergic system and aldosterone secretion. I. Suppressive effects of L-dopa on secondary hyperaldosteronism].

The authors studied the blood aldosterone, cortisol and kalium levels, the plasma renin activity and the aldosterone urinary excretion following L-DOPA (0.50 g per os) administration in seven patients affected by hypertension and secondary hyperaldosteronism. The results suggest that L-DOPA administration, by stimulating the dopaminergic biosynthesis. Nevertheless such a conclusion needs further investigations.