Low plasma 19-hydroxyandrostenedione levels in patients with aldosterone-producing adenoma

Endocr J. 1993 Feb;40(1):89-97. doi: 10.1507/endocrj.40.89.

Abstract

The present study was performed to clarify changes in plasma levels of 19-hydroxyandrostenedione (19-OH-AD), an amplifier of aldosterone and a possible hypertensinogenic steroid, during several tests for the renin-angiotensin system in 20 patients with aldosterone-producing adenoma (APA) and to determine whether 19-OH-AD participates in the etiology of the hypertension in this disorder. Basal plasma 19-OH-AD levels in patients with APA were significantly lower than those in 50 normal subjects, and correlated positively with basal plasma cortisol levels (r = 0.45, P < 0.05). Plasma 19-OH-AD levels were not changed significantly by 2-h standing during which plasma renin activity (PRA) remained suppressed. With 40 mg iv furosemide plus 2-h standing during which PRA remained suppressed, plasma 19-OH-AD levels increased significantly with a concomitant significant increase in plasma cortisol. With dexamethasone pretreatment, however, such positive responses of plasma 19-OH-AD and cortisol disappeared. After the removal of the APA with the adjacent adrenal tissue, PRA and plasma aldosterone concentrations became normal or low-normal, but plasma 19-OH-AD and cortisol did not change as compared with the preoperative levels. There were no significant correlations between basal plasma 19-OH-AD levels and mean blood pressure either before or after the adrenal operation.(ABSTRACT TRUNCATED AT 250 WORDS)

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenoma / blood*
  • Adenoma / complications
  • Adrenal Gland Neoplasms / blood*
  • Adrenal Gland Neoplasms / complications
  • Adult
  • Aged
  • Aldosterone / blood*
  • Androstenedione / analogs & derivatives*
  • Androstenedione / blood
  • Blood Pressure / physiology
  • Dexamethasone / therapeutic use
  • Female
  • Furosemide / pharmacology
  • Humans
  • Hypertension / blood
  • Male
  • Middle Aged
  • Radioimmunoassay

Substances

  • Androstenedione
  • Aldosterone
  • Furosemide
  • Dexamethasone
  • 19-hydroxy-4-androstene-3,17-dione