Evidence map›Paper›PMID 22535765›Full record

ArticleEndocrinology2012

17β-Estradiol inhibits iron hormone hepcidin through an estrogen responsive element half-site.

Qing Yang, Jinlong Jian, Stuart Katz, Steven B Abramson, Xi Huang

2 registry-linked trialsOpen access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 109 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed, 2 pooled it
6.6field-weighted citation impact, top 3% 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.

NCT04458662 completednot on this mapstarted 2017, after this paper: background citation

Iron and Muscular Damage: FEmale Metabolism and Menstrual Cycle During Exercise

Typeobservational_patient_registrySponsorUniversidad Politecnica de MadridRan2017 to 2020Enrolled103ConditionsIron-deficiency, Inflammation, Exercise Induced Iron-deficiency, Exercise Induced Muscle DamageArmsInterval running protocol / eccentric-based resistance exercise protocol
NCT05034250 unknown statusnot on this mapstarted 2021, after this paper: background citation

Iron Status in Women With Infertility and Controls - a Prospective Case-control Study

TypeobservationalSponsorMedical University of ViennaRan2021 to 2024Enrolled120ConditionsRecurrent Miscarriage, Infertility, Iron-deficiencyArmsBlood sample
3 · Its place in the literature

Who cites it

109 citing papers in PubMed, 2 syntheses or guidelines pooled it, 203 citations in OpenAlex.

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  19. Iron Deficiency in Heart Failure: Cellular Mechanisms and Therapeutic Implications.Journal of cardiovascular development and disease · 2025
    Review
  20. Article

49 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Qing YangDepartment of Environmental Medicine, New York University School of Medicine, New York, New York 10016, USA.
Jinlong Jian
Stuart Katz
Steven B Abramson
Xi Huang
New York University · US

Funding

Role of Estrogen and Iron in Breast CancerR21CA132684 · NCI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI HUANG, XI · 2007 to 2008
$372k
NCI NIH HHS R21 CA132684
6 · The paper itself

Abstract

Interaction of estrogen with iron at the systemic level is long suspected, but direct evidence linking the two is limited. In the present study, we examined the effects of 17β-estradiol (E2) on hepcidin, a key negative regulator of iron absorption from the liver. We found that transcription of hepcidin was suppressed by E2 treatment in human liver HuH7 and HepG2 cells, and this down-regulation was blocked by E2 antagonist ICI 182780. Chromatin immunoprecipitation, deletion, and EMSA detected a functional estrogen responsive element half-site that is located between -2474 and -2462 upstream from the start of transcription of the hepcidin gene. After cloning the human hepcidin promoter into the pGL3Luc-Reporter vector, luciferase activity was also down-regulated by E2 treatment in HepG2 cells. E2 reduced hepcidin mRNA in wild-type mice as well as in hemochromatosis Fe gene knockout mice. In summary, our data suggest that hepcidin inhibition by E2 is to increase iron uptake, a mechanism to compensate iron loss during menstruation. This mechanism may also contribute to increased iron stores in oral contraceptive users.

Indexed as

AnimalsAntimicrobial Cationic PeptidesCell LineChromatin ImmunoprecipitationDNAEstradiolEstrogensFemaleGene DeletionHepcidinsHumansIronMiceMice, KnockoutPlasmidsPromoter Regions, GeneticAntimicrobial Cationic PeptidesDNAEstradiolEstrogensHAMP protein, humanHamp protein, mouseHepcidinsIronRNA, Messenger

Identifiers

PMID22535765
PMCPMC3380311
OpenAlexW2037790531

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.