Evidence map›Paper›PMID 29594477›Full record

ArticleEuropean journal of nutrition2019

Quercetin inhibits intestinal non-haem iron absorption by regulating iron metabolism genes in the tissues.

Marija Lesjak, Sara Balesaria, Vernon Skinner, Edward S Debnam, Surjit Kaila S Srai

Open access · hybridAbstract read
In one paragraph

Article in European journal of nutrition, 2019. 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
4.2field-weighted citation impact, top 5% 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, 59 citations in OpenAlex.

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  15. Hitchhiking into a cell: flavonoids may produce complexes with transition metals for transmembrane translocation.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022
    Article
  16. Review
  17. Saffron (Nutrients · 2022
    Article
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  19. Article
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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 3 institutions in 2 countries.

Marija LesjakDivision of Biosciences, Research Department of Structural and Molecular Biology, University College London, Darwin Building, Gower Street, London, WC1E 6BT, UK. marija.lesjak@dh.uns.ac.rs.ORCID http://orcid.org/0000-0001-9764-9903
Sara BalesariaDivision of Biosciences, Research Department of Structural and Molecular Biology, University College London, Darwin Building, Gower Street, London, WC1E 6BT, UK.
Vernon SkinnerDivision of Biosciences, Research Department of Structural and Molecular Biology, University College London, Darwin Building, Gower Street, London, WC1E 6BT, UK.
Edward S DebnamDivision of Biosciences, Research Department of Neuroscience, Physiology and Pharmacology, University College London, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, UK.
Surjit Kaila S SraiDivision of Biosciences, Research Department of Structural and Molecular Biology, University College London, Darwin Building, Gower Street, London, WC1E 6BT, UK. k.srai@ucl.ac.uk.
Institute of Structural and Molecular Biology · GBThe Royal Free Hospital · GBUniversity of Novi Sad · RS

Funding

Biotechnology and Biological Sciences Research Council BB/H003576/1Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja 172058
6 · The paper itself

Abstract

purposeThere is general agreement that some dietary polyphenols block non-haem iron uptake, but the mechanisms by which they achieve this action are poorly understood. Since the polyphenol quercetin is ingested daily in significant amounts, we have investigated the effect of quercetin on duodenal non-haem iron absorption in vivo, as well as its effect on factors known to be involved in systemic iron metabolism.

methodsRats were subject to gastric gavage and systemic quercetin administration. Treatments were followed with uptake studies using radiolabeled iron, serum iron and transferrin saturation measurements, LC-MS/MS analysis of quercetin metabolites in serum, determination of tissue non-haem iron content and analysis of gene expression of iron-related proteins.

resultsBoth oral and intraperitoneal (IP) quercetin caused serum and tissue iron depletion by two means, first by increasing mucosal iron uptake and inhibiting iron efflux from duodenal mucosa, and second by decreasing levels of duodenal DMT1, Dcytb and FPN. Additionally, IP quercetin induced highly significant increased liver expression of hepcidin, a hormone known to inhibit intestinal iron uptake.

conclusionsOral quercetin significantly inhibited iron absorption, while IP quercetin significantly affected iron-related genes. These results could lead to development of new effective ways of preventing and treating iron deficiency anaemia, the most widespread nutritional disorder in the world.

Indexed as

AnimalsAntioxidantsDuodenumGene ExpressionIntestinal AbsorptionIntestinal MucosaIronMaleModels, AnimalQuercetinRatsRats, Sprague-DawleyAntioxidantsIronQuercetinAbsorptionDuodenumIron deficiency anaemiaNon-haem ironPolyphenolsQuercetin

Identifiers

PMID29594477
PMCPMC6437293
OpenAlexW2794597807

What OpenQuestion holds

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LicenceCC BY
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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 OpenQuestion graph.