Evidence map›Paper›PMID 24158698›Full record

ArticleBiometals : an international journal on the role of metal ions in biology, biochemistry, and medicine2013

EGCG inhibit chemical reactivity of iron through forming an Ngal-EGCG-iron complex.

Guan-Hu Bao, Jie Xu, Feng-Lin Hu, Xiao-Chun Wan, Shi-Xian Deng, Jonathan Barasch

Abstract read
In one paragraph

Article in Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 42 citations in OpenAlex.

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  9. Neuroprotective Properties of Green Tea (Molecules (Basel, Switzerland) · 2020
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  11. A Review of the Antiviral Role of Green Tea Catechins.Molecules (Basel, Switzerland) · 2017
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  15. Review
  16. Lipocalin 2 alleviates iron toxicity by facilitating hypoferremia of inflammation and limiting catalytic iron generation.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2016
    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

6 authors at 2 institutions in 2 countries.

Guan-Hu BaoKey Laboratory of Tea Biochemistry and Biotechnology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, Anhui, China, baoguanhu@ahau.edu.cn.
Jie Xu
Feng-Lin Hu
Xiao-Chun Wan
Shi-Xian Deng
Jonathan Barasch
Anhui Agricultural University · CNColumbia University · US

Funding

IRON LIPOCALIN NGAL IN KIDNEY DISEASER01DK073462 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BARASCH, JONATHAN M. · 2007 to 2015
$3.0M
Iron Delivery in the Developing KidneyR01DK092684 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BARASCH, JONATHAN M. · 2012 to 2016
$1.7M
NIDDK NIH HHS R01 DK073462NIDDK NIH HHS R01 DK092684
6 · The paper itself

Abstract

Accumulated evidence indicates that the interconversion of iron between ferric (Fe(3+)) and ferrous (Fe(2+)) can be realized through interaction with reactive oxygen species in the Fenton and Haber-Weiss reactions and thereby physiologically effects redox cycling. The imbalance of iron and ROS may eventually cause tissue damage such as renal proximal tubule injury and necrosis. Many approaches were exploited to ameliorate the oxidative stress caused by the imbalance. (-)-Epigallocatechin-3-gallate, the most active and most abundant catechin in tea, was found to be involved in the protection of a spectrum of renal injuries caused by oxidative stress. Most of studies suggested that EGCG works as an antioxidant. In this paper, Multivariate analysis of the LC-MS data of tea extracts and binding assays showed that the tea polyphenol EGCG can form stable complex with iron through the protein Ngal, a biomarker of acute kidney injury. UV-Vis and Luminescence spectrum methods showed that Ngal can inhibit the chemical reactivity of iron and EGCG through forming an Ngal-EGCG-iron complex. In thinking of the interaction of iron and ROS, we proposed that EGCG may work as both antioxidant and Ngal binding siderphore in protection of kidney from injuries.

Indexed as

Acute-Phase ProteinsAntioxidantsCatechinChloridesChromatography, LiquidFerric CompoundsFerrous CompoundsIronLipocalin-2LipocalinsMass SpectrometryOxidation-ReductionPlant ExtractsProtein BindingProto-Oncogene ProteinsReactive Oxygen SpeciesAcute-Phase ProteinsAntioxidantsCatechinChloridesepigallocatechin gallateferric chlorideFerric CompoundsFerrous Compoundsferrous sulfateIronLCN2 protein, humanLipocalin-2LipocalinsPlant ExtractsProto-Oncogene ProteinsReactive Oxygen SpeciesRecombinant ProteinsTea

Identifiers

PMID24158698
PMCPMC4416964
OpenAlexW2034582278

What OpenQuestion holds

Textmetadata
LicenceTDM
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.