What causes glucocorticoid-remediable aldosteronism (GRA)?

Updated: Mar 24, 2020
  • Author: Gabriel I Uwaifo, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

In glucocorticoid-remediable aldosteronism (GRA), the RAS is suppressed, and aldosterone is regulated by corticotropin because of the chimeric gene fusion of a corticotropin-sensitive promoter with the coding regions of the aldosterone synthetase gene (which normally does not have such a promoter). Thus, ambient corticotropin levels pathologically overstimulate aldosterone synthesis inappropriately. [6]


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