[Function of the renin-angiotensin-aldosterone system and atrial natriuretic peptide secretion in patients with acute non-inflammatory renal insufficiency].

Plasma renin activity, blood aldosterone levels and ANP secretion have been studied in 15 patients with the acute non-inflammatory renal insufficiency prior to and after ACE blockade with captopril. The above parameters were investigated at rest and in water immersion. Captopril significantly enhanced plasma renin activity in both examined groups, and decreased blood serum aldosterone levels but only in healthy subjects. Captopril had no effect on serum ANP levels. Results did not reveal close correlation between ANP release and renin-angiotensin-aldosterone system activity in both healthy subjects and patients with the acute non-inflammatory renal insufficiency.