Endothelin-1 and adrenomedullin plasma levels after exposure to fludrocortisone, dexamethasone, and spironolactone

Clinical and Experimental Hypertension : CHE
Sarah VogtHolger S Willenberg

Abstract

We asked whether plasma concentrations of endothelin-1 (ET-1) or adrenomedullin (ADM) are altered by different activity states of the renin-angiotensin-aldosterone system (RAAS). Levels of ET-1 and ADM were studied in patients with primary aldosteronism (n = 15), essential hypertension (n = 15), and adrenal insufficiency (n = 7). Effects of fludrocortisone, dexamethasone, or spironolactone treatment on ET-1 and ADM levels were also analyzed. Plasma ET-1 and ADM concentrations did not differ significantly between the patient groups. After fludrocortisone, dexamethasone, or spironolactone treatment, both ET-1 and ADM did not change significantly. The data support the hypothesis that the RAAS is not directly linked with the ET-1/ADM system.

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