Hyperaldosteronism pathophysiology

This podcast episode reviews the embryological, genetic, and pathophysiological architecture underlying primary aldosteronism. It traces how disrupted adrenocortical cellular migration and channelopathies in the zona glomerulosa drive autonomous mineralocorticoid excess. Listeners will explore the divergent molecular genetics distinguishing aldosterone-producing adenomas from idiopathic adrenal hyperplasia, highlighting somatic mutations in KCNJ5, CACNA1D, and ATP1A1. The discussion evaluates the four types of familial hyperaldosteronism, detailing the chimeric gene formation in type one and germline mutations in types two through four. Finally, the episode connects these molecular mechanisms to clinical findings, including the aldosterone escape phenomenon and postural diagnostic logic.