Evidence map›Paper›PMID 33069164›Full record

ArticlePediatric research2022

Iron transport across the human placenta is regulated by hepcidin.

E A McDonald, F Gundogan, R M Olveda, T B Bartnikas, J D Kurtis, J F Friedman

Open access · greenAbstract read
In one paragraph

Article in Pediatric research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.0field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 19 citations in OpenAlex.

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  15. Iron Therapeutics in Women's Health: Past, Present, and Future.Pharmaceuticals (Basel, Switzerland) · 2020
    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

6 authors at 4 institutions in 2 countries.

E A McDonaldCenter for International Health Research, Rhode Island Hospital, Providence, RI, USA. Emily_McDonald@brown.edu.
F GundoganDepartment of Pathology, Women & Infants Hospital, Providence, RI, USA.
R M OlvedaDepartment of Immunology, Research Institute for Tropical Medicine, Manila, Philippines.
T B BartnikasDepartment of Pathology & Laboratory Medicine, Alpert Medical School of Brown University, Providence, RI, USA.
J D KurtisCenter for International Health Research, Rhode Island Hospital, Providence, RI, USA.
J F FriedmanCenter for International Health Research, Rhode Island Hospital, Providence, RI, USA.
Brown University · USRhode Island Hospital · USResearch Institute for Tropical Medicine · PHWomen & Infants Hospital of Rhode Island · US

Funding

Molecular Basis of Mammalian Manganese HomeostasisR01DK110049 · NIDDK · BROWN UNIVERSITY · PI BARTNIKAS, THOMAS BENEDICT · 2016 to 2025
$3.6M
Optimizing interventions to mitigate schistosomiasis-related morbidity among pregnant women and childrenK24AI112964 · NIAID · RHODE ISLAND HOSPITAL · PI FRIEDMAN, JENNIFER F · 2015 to 2024
$1.7M
The impact of maternal S. japonicum infection on fetal metabolism and growthK01AI113068 · NIAID · RHODE ISLAND HOSPITAL · PI MCDONALD, EMILY A · 2015 to 2019
$665k
S.japonicum, anemia, and iron transport in human pregnancyR21AI107520 · NIAID · RHODE ISLAND HOSPITAL · PI FRIEDMAN, JENNIFER F · 2014 to 2015
$437k
NIAID NIH HHS K01 AI113068NIAID NIH HHS K24 AI112964NIAID NIH HHS R21 AI107520NIDDK NIH HHS R01 DK110049
6 · The paper itself

Abstract

backgroundTransport of iron across the placenta is critical for appropriate development of the fetus. Iron deficiency during pregnancy remains a major public health concern, particularly in low- and middle-income countries, often exacerbated by infectious diseases leading to altered iron trafficking via inflammatory responses. Herein, we investigate the role of hepcidin, a master regulator of iron homeostasis, on regulation of iron transport across trophoblast cells.

methodsWe utilized the Jeg-3 choriocarcinoma cell line for analysis of the expression of transferrin receptor, ferritin, and ferroportin as well as the export of

resultsHepcidin treatment of Jeg-3 cells decreased the expression of ferroportin and transferrin receptor (TfR) and reduced the cellular export of iron. Lower expression of TfR on the syncytiotrophoblast was associated with the highest levels of hepcidin in maternal circulation, and ferroportin expression was positively associated with placental TfR. Placentas from small-for-gestational-age newborns had significantly lower levels of ferroportin and ferritin gene expression at delivery.

conclusionsOur data suggest that hepcidin plays an important role in the regulation of iron transport across the placenta, making it a critical link in movement of iron into fetal circulation. IMPACT: Hepcidin has a direct impact on iron transport across the human placenta. This study provides the first evidence of direct regulation of iron efflux from human trophoblast cells by hepcidin. These data extend our understanding of iron transport across the maternal-fetal interface, a process critical for fetal health and development.

Indexed as

HepcidinsPlacentaCell Line, TumorFemaleFerritinsHumansInfant, NewbornIronPregnancyReceptors, TransferrinFerritinsHepcidinsIronReceptors, Transferrin

Identifiers

PMID33069164
PMCPMC8052381
OpenAlexW3093000888

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Registered trials

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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.