Evidence map›Paper›PMID 34826118›Full record

ArticleEndocrine2022

Aldosterone and renin concentrations were abnormally elevated in a cohort of normotensive pregnant women.

Valentina Pastén, Alejandra Tapia-Castillo, Carlos E Fardella, Andrea Leiva, Cristian A Carvajal

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Article in Endocrine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Valentina Pastén *Department of Endocrinology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Alejandra Tapia-CastilloDepartment of Endocrinology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Carlos E FardellaDepartment of Endocrinology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Andrea LeivaDivision of Obstetrics and Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile. andrea.leiva@uss.cl.
Cristian A Carvajal *Department of Endocrinology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile. ccarvajm@uc.cl.ORCID http://orcid.org/0000-0002-0668-412X
Pontificia Universidad Católica de Chile · CL

Funding

Fondo Nacional de Desarrollo Científico y Tecnológico 1160695Fondo Nacional de Desarrollo Científico y Tecnológico 1190250
6 · The paper itself

Abstract

backgroundDuring pregnancy, the renin-angiotensin-aldosterone system (RAAS) undergoes major changes to preserve normal blood pressure (BP) and placental blood flow and to ensure a good pregnancy outcome. Abnormal aldosterone-renin metabolism is a risk factor for arterial hypertension and cardiovascular risk, but its association with pathological conditions in pregnancy remains unknown. Moreover, potential biomarkers associated with these pathological conditions should be identified.

aimTo study a cohort of normotensive pregnant women according to their serum aldosterone and plasma renin levels and assay their small extracellular vesicles (sEVs) and a specific protein cargo (LCN2, AT1R).

methodsA cohort of 54 normotensive pregnant women at term gestation was included. We determined the BP, serum aldosterone, and plasma renin concentrations. In a subgroup, we isolated their plasma sEVs and semiquantitated two EV proteins (AT1R and LCN2).

resultsWe set a normal range of aldosterone and renin based on the interquartile range. We identified 5/54 (9%) pregnant women with elevated aldosterone and low renin levels and 5/54 (9%) other pregnant women with low aldosterone and elevated renin levels. No differences were found in sEV-LCN2 or sEV-AT1R.

conclusionWe found that 18% of normotensive pregnant women had either high aldosterone or high renin levels, suggesting a subclinical status similar to primary aldosteronism or hyperreninemia, respectively. Both could evolve to pathological conditions by affecting the maternal vascular and renal physiology and further the BP. sEVs and their specific cargo should be further studied to clarify their role as potential biomarkers of RAAS alterations in pregnant women.

Indexed as

HypertensionReninAldosteroneBlood PressureFemaleHumansPlacentaPregnancyPregnancy OutcomePregnant PeopleRenin-Angiotensin SystemAldosteroneReninExtracellular vesiclesNormotensionPregnancyRenin–angiotensin–aldosterone system

Identifiers

PMID34826118
OpenAlexW3166541428

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.