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  • Title: Organ-specific actions of 11 beta-hydroxysteroid dehydrogenase in humans: implications for the pathophysiology of hypertension.
    Author: Walker BR.
    Journal: Steroids; 1994 Feb; 59(2):84-9. PubMed ID: 8191553.
    Abstract:
    Elucidation of a role for 11 beta-hydroxysteroid dehydrogenase (11 beta-OHSD) in modulating ligand access to renal mineralocorticoid receptors, together with identification of expression of the enzyme in most mammalian tissues, has raised the possibility (i) that glucocorticoid metabolism might influence corticosteroid receptor activation in other sites which are relevant to blood pressure control (e.g., vascular smooth muscle), and (ii) that abnormal 11 beta-OHSD expression might play a pathogenic role in common forms of hypertension (e.g., essential hypertension and the syndrome of ectopic ACTH secretion). This article reviews data from human experiments which suggest that 11 beta-OHSD has tissue-specific actions which can increase or decrease sensitivity of both mineralocorticoid and glucocorticoid receptors to cortisol, and that assessment of cortisol sensitivity may prove equally important as assessment of cortisol secretion rates in hypertensive patients.
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