Subclinical Primary Aldosteronism Is Characterized by Maladaptive Natriuretic Peptide and Adrenal Hormonal Physiology
Authors' conclusion
These findings demonstrate that the pathophysiologic continuum of subclinical PA in normotensive people is characterized by natriuretic peptide insufficiency and heightened aldosterone responses to both AngII and ACTH. These early maladaptive hormonal changes provide mechanistic explanations for the role of subclinical PA in the pathogenesis of hypertension.
Study context
- Population
- Normotensive participants assessed for subclinical primary aldosteronism (PA) (maximally suppressed plasma aldosterone after oral sodium loading and supine posture)
- Participants
- 75 participants
- Outcome
- Hormonal correlates of subclinical PA magnitude
Methodological detailsprospective
- Prospective
Main finding
As reported in the abstract
- Greater subclinical PA associated with lower basal NT-proBNP
- P-trend < .01
- Greater subclinical PA associated with blunted NT-proBNP stimulation after sodium loading
- P-trend = .023
- Greater subclinical PA associated with greater angiotensin II (AngII)-dependent aldosterone production
- P-trend < .001
- Greater subclinical PA associated with greater AngII-independent aldosterone production
- P-trend < .001
- Subclinical PA magnitude paralleled severity of ACTH-mediated aldosterone production
- P-trends < .001
Further findings
Post-saline aldosterone after SST
- Post-saline aldosterone >10 ng/dL
- 24.2%
- Post-saline aldosterone >6 ng/dL
- 72.7%
Original publication
Subclinical Primary Aldosteronism Is Characterized by Maladaptive Natriuretic Peptide and Adrenal Hormonal Physiology. J Clin Endocrinol Metab. Published 26 February 2025. doi:10.
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