Cited by 148Renin-Angiotensin System StudiesHormonal Regulation and HypertensionElectrolyte and hormonal disorders

Physiological partial aldosterone resistance in human newborns

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Martinerie, Laetitia, Pussard, Eric, Foix-L'Hélias, Laurence, Petit, Francois, Cosson, Claudine, Boileau, Pascal, Lombès, Marc·2009·Pediatric Research

Abstract

In the neonatal period, the human kidney is characterized by an impaired ability to regulate water and sodium homeostasis, resembling partial aldosterone resistance. The aim of our study was to assess this hormonal insensitivity in newborn infants and to determine its relationship with neonatal sodium handling. We conducted a prospective study in 48 healthy newborns and their mothers. Aldosterone, renin, and electrolyte concentrations were measured in umbilical cords and in maternal plasma. Urinary aldosterone concentrations and sodium excretion were determined at urination within 24 h after birth. A significant difference was observed between aldosterone and renin levels in newborn infants compared with their mothers (817 +/- 73 versus 575 +/- 55 pg/mL and 79 +/- 10 versus 15 +/- 2 pg/mL, respectively, p < 0.001). This hyperactivation of the renin-angiotensin-aldosterone system was associated with hyponatremia and hyperkalemia in the newborn infants, and high urinary sodium loss, consistent with a partial aldosterone resistance at birth. Unlike plasma aldosterone, urinary aldosterone concentration was found highly correlated with plasma potassium concentrations, thus representing the best index for accurate evaluation of mineralocorticoid sensitivity. Our study represents a comprehensive characterization of the renin-aldosterone axis in newborn infants and provides evidence for physiologic partial aldosterone resistance in the neonatal period.

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  • All infants affected with classic CAH benefit from glucocorticoid plus adjunctive mineralocorticoid treatment at least within the first year of life.

    “All infants affected with classic CAH benefit from glucocorticoid plus adjunctive mineralocorticoid treatment at least within the first year of life, when there is relative renal tubular resistance to the salt-retaining effects of aldosterone in early infancy (28) and low sodium content of infant diets (29).”

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Authors
Martinerie, L., Pussard, E., Foix-L'Hélias, L., Petit, F., Cosson, C., Boileau, P., & Lombès, M.
Affiliations
  • Université Paris-Sud (FR)
  • Assistance Publique – Hôpitaux de Paris (FR)
Venue
Pediatric Research
Published
2009-09
Volume
66
Issue
3
Pages
323-328
ISSN
  • 0031-3998 (ISSN-L)
  • 1530-0447
OpenAlex
W2033288210
Cited by
148
References
42
Citations by year
2026: 4 · 2025: 6 · 2024: 31 · 2023: 9 · 2022: 10 · 2021: 7 · 2020: 3 · 2019: 11 · 2018: 4 · 2017: 15 · 2016: 11 · 2015: 4 · 2014: 9 · 2013: 6 · 2012: 6
FWCI
3.88
Type
journal article
Language
en
Open access
Locations
  • Pediatric Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion, other-oa)
Funders
  • Danone
  • Institut National de la Santé et de la Recherche Médicale
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Electrolyte and hormonal disorders
Keywords
neonates, renin-angiotensin-aldosterone system, urinary aldosterone, plasma aldosterone, renin, sodium homeostasis, water homeostasis, hyponatremia, hyperkalemia, plasma potassium, umbilical cord
MeSH terms
Adolescent, Adult, Aldosterone, Female, Humans, Hyperaldosteronism, Infant, Newborn, Middle Aged, Mineralocorticoids, Potassium, Prospective Studies, Renin, Renin-Angiotensin System, Sodium, Water-Electrolyte Balance, Young Adult

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