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Steroids and hypertension.

F Mantero1, D Armanini, M Boscaro

  • 1Institute of Clinica Medica I, University of Catania, Italy.

The Journal of Steroid Biochemistry and Molecular Biology
|January 1, 1991
PubMed
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This study details primary aldosteronism subtypes, including idiopathic aldosteronism and glucocorticoid-remediable aldosteronism, highlighting diagnostic criteria and biochemical abnormalities. Further research is needed to understand the pathogenesis of these adrenal disorders.

Area of Science:

  • Endocrinology
  • Adrenal Disorders
  • Mineralocorticoid Hypertension

Background:

  • Primary aldosteronism encompasses disorders of the zona glomerulosa, including adenoma, hyperplasia, and carcinoma.
  • Current diagnostic criteria for differentiating subtypes are reliable, but pathogenesis remains poorly understood.
  • Specific forms like idiopathic aldosteronism and glucocorticoid-remediable aldosteronism present unique hormonal sensitivities and biochemical profiles.

Purpose of the Study:

  • To present detailed experience with the diagnostic criteria for primary aldosteronism subtypes.
  • To discuss the pathogenesis, biochemical abnormalities, and genetic basis of various hyperaldosteronism forms.
  • To describe the syndrome of apparent mineralocorticoid excess and its proposed mechanism.

Main Methods:

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  • Detailed presentation of diagnostic criteria and clinical experience with primary aldosteronism.
  • Biochemical analysis of mineralocorticoid hormone (MCH) overproduction and metabolite ratios.
  • Investigation of gene abnormalities and molecular basis in affected families and patients.

Main Results:

  • Established reliable diagnostic criteria for differentiating primary aldosteronism subtypes.
  • Identified specific biochemical markers, including 18-hydroxycortisol and 18-oxocortisol, in glucocorticoid-remediable aldosteronism.
  • Described excess secretion of deoxycorticosterone (DOC) in DOC-secreting tumors and congenital adrenal hyperplasia (CAH) forms (11 beta-hydroxylase deficiency and 17 alpha-hydroxylase deficiency).

Conclusions:

  • Diagnostic approaches for primary aldosteronism are effective, yet understanding pathogenesis requires further investigation.
  • Glucocorticoid-remediable aldosteronism is characterized by unique ACTH sensitivity and cortisol pathway metabolite overproduction.
  • Apparent mineralocorticoid excess involves impaired peripheral cortisol inactivation, with distinct variants identified by metabolite ratios.