Evidence mapPaperPMID 41735585Full record

ArticleDiabetologia2026

Maternal pre-pregnancy BMI differentially regulates intracellular pH in human umbilical vein endothelium from gestational diabetes mellitus pregnancies, with alkalinisation-associated reduction of adenosine transport in normal weight pregnancies.

Gonzalo Fuentes, Paola Valero, Marcelo Cornejo, Katherin Silva, Marco A Ramírez, Daniel R González, Jan-Luuk Hillebrands, Harry van Goor, Luis Sobrevia

Abstract read
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In one paragraph

Article in Diabetologia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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

9 authors.

Gonzalo FuentesCellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.ORCID http://orcid.org/0000-0003-2577-9965
Paola ValeroCellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.ORCID http://orcid.org/0000-0002-5519-6552
Marcelo CornejoCellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.ORCID http://orcid.org/0000-0002-1377-0149
Katherin SilvaCellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.ORCID http://orcid.org/0009-0000-4538-9492
Marco A RamírezBiomedical Department, Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile.ORCID http://orcid.org/0009-0004-9804-2053
Daniel R GonzálezFaculty of Health Sciences, Universidad de Talca, Talca, Chile.ORCID http://orcid.org/0000-0002-3437-8998
Jan-Luuk HillebrandsDepartment of Pathology and Medical Biology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, the Netherlands. j.l.hillebrands@umcg.nl.ORCID http://orcid.org/0000-0003-3135-3274
Harry van GoorDepartment of Pathology and Medical Biology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, the Netherlands. h.van.goor@umcg.nl.ORCID http://orcid.org/0000-0002-6670-1577
Luis SobreviaCellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile. lsobrevia@uc.cl.ORCID http://orcid.org/0000-0001-5802-2243

Funding

Agencia Nacional de Investigación y Desarrollo 21221870Agencia Nacional de Investigación y Desarrollo 21221950Agencia Nacional de Investigación y Desarrollo 21222280Agencia Nacional de Investigación y Desarrollo 21251843Fondo Nacional de Desarrollo Científico y Tecnológico 1252163Fundação de Amparo à Pesquisa do Estado de São Paulo 16/01743-5Universidad de Talca PhD fellowshipsUniversitair Medisch Centrum Groningen Abel Talent Tasman Project (ATTP)
6 · The paper itself

Abstract

aims/hypothesisGestational diabetes mellitus (GDM) is associated with fetoplacental endothelial dysfunction, including impaired extracellular clearance of adenosine, a vasodilator, in HUVECs. This study investigated the regulation of intracellular pH (pHi) and its impact on adenosine membrane transport in HUVECs. The hypothesis of this study was that Na

methodsHUVECs were isolated from 43 women with normal pregnancies and 23 with type A1 GDM and further stratified by maternal pre-pregnancy BMI into subgroups with normal weight, overweight and obesity. Data were also analysed as pooled groups (BMI ≥20 kg/m

resultsGDM was linked to intracellular alkalinisation (~0.6 pHi units vs normal pregnancies), increased activity of NHE1 and NHE isoforms 2 and 3 and reduced buffering capacity, with these effects varying by pre-pregnancy maternal BMI. Increased pHi recovery (~3.8-fold) and NHE1 activity (~4.8-fold) were observed in cells from women with GDM and pre-pregnancy overweight, while those with obesity (i.e. gestational diabesity) showed unaltered NHE1-mediated pHi recovery. Buffering capacity was reduced across most GDM groups, except in the overweight group. The GDM-reduced adenosine transport maximal capacity via human equilibrative nucleoside transporter isoform 2 was restored by intracellular acidification in GDM. CONCLUSIONS/

interpretationPre-pregnancy maternal metabolic status influences endothelial adaptation or maladaptation to GDM. Stratifying GDM cases by pre-pregnancy maternal BMI uncovers subgroup-specific physiological responses, highlighting the importance of tailored approaches in understanding GDM pathophysiology.

Indexed as

AdenosineDiabetes, GestationalEndothelium, VascularHuman Umbilical Vein Endothelial CellsAdultBiological TransportBody Mass IndexEquilibrative Nucleoside Transporter 1FemaleHumansHydrogen-Ion ConcentrationObesityPregnancySodium-Hydrogen Exchanger 1Sodium-Hydrogen ExchangersAdenosineEquilibrative Nucleoside Transporter 1SLC29A1 protein, humanSLC9A1 protein, humanSodium-Hydrogen Exchanger 1Sodium-Hydrogen ExchangersAdenosine transportBody mass indexEndotheliumGestational diabetesIntracellular pHPlacentaPregnancySodium/proton exchanger 1

Identifiers

What Socratic holds

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Registered trials

None linked

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 Socratic graph.