Evidence map›Paper›PMID 33434211›Full record

ArticlePloS one2021

Hypoxia-induced mitochondrial abnormalities in cells of the placenta.

Philippe Vangrieken, Salwan Al-Nasiry, Aalt Bast, Pieter A Leermakers, Christy B M Tulen, Ger M J Janssen, Iris Kaminski, Iris Geomini, Titus Lemmens, Paul M H Schiffers and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. The Pathogenesis of Preeclampsia: Hypoxia and the Unfolded Protein Response.Reproductive sciences (Thousand Oaks, Calif.) · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. The uteroplacental circulation at high altitude: adaptation and maladaptation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  9. Placental mitochondria in high-altitude pregnancy: metabolic adaptations and a toolkit for respiratory assessment.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Effects of quercetin on immune regulation at the maternal-fetal interface.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2023
    Article
  17. Review
  18. Oxidative Regulation of Vascular CaAntioxidants (Basel, Switzerland) · 2022
    Review
  19. Article
  20. The Update of Fetal Growth Restriction Associated with Biomarkers.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2022
    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

12 authors at 1 institution in 1 country.

Philippe VangriekenDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.ORCID 0000-0003-0871-7789
Salwan Al-NasiryDepartment of Obstetrics and Gynaecology, School for Oncology and Developmental Biology (GROW), Maastricht University Medical Center+, Maastricht, The Netherlands.ORCID 0000-0003-0268-2095
Aalt BastDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Pieter A LeermakersDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.ORCID 0000-0002-0145-742X
Christy B M TulenDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Ger M J JanssenDepartment of Pharmacology and Toxicology, School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Iris KaminskiDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Iris GeominiDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Titus LemmensDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Paul M H SchiffersDepartment of Pharmacology and Toxicology, School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Frederik J van SchootenDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Alex H V RemelsDepartment of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center+, Maastricht, The Netherlands.
Maastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionImpaired utero-placental perfusion is a well-known feature of early preeclampsia and is associated with placental hypoxia and oxidative stress. Although aberrations at the level of the mitochondrion have been implicated in PE pathophysiology, whether or not hypoxia-induced mitochondrial abnormalities contribute to placental oxidative stress is unknown.

methodsWe explored whether abnormalities in mitochondrial metabolism contribute to hypoxia-induced placental oxidative stress by using both healthy term placentae as well as a trophoblast cell line (BeWo cells) exposed to hypoxia. Furthermore, we explored the therapeutic potential of the antioxidants MitoQ and quercetin in preventing hypoxia-induced placental oxidative stress.

resultsBoth in placental explants as well as BeWo cells, hypoxia resulted in reductions in mitochondrial content, decreased abundance of key molecules involved in the electron transport chain and increased expression and activity of glycolytic enzymes. Furthermore, expression levels of key regulators of mitochondrial biogenesis were decreased while the abundance of constituents of the mitophagy, autophagy and mitochondrial fission machinery was increased in response to hypoxia. In addition, placental hypoxia was associated with increased oxidative stress, inflammation, and apoptosis. Moreover, experiments with MitoQ revealed that hypoxia-induced reactive oxygen species originated from the mitochondria in the trophoblasts. DISCUSSION: This study is the first to demonstrate that placental hypoxia is associated with mitochondrial-generated reactive oxygen species and significant alterations in the molecular pathways controlling mitochondrial content and function. Furthermore, our data indicate that targeting mitochondrial oxidative stress may have therapeutic benefit in the management of pathologies related to placental hypoxia.

Indexed as

Organelle BiogenesisOxidative StressCell HypoxiaCell LineFemaleHumansMitochondriaPre-EclampsiaPregnancyReactive Oxygen SpeciesTrophoblastsReactive Oxygen Species

Identifiers

PMID33434211
PMCPMC7802931
OpenAlexW3120362180

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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 OpenQuestion graph.