Evidence map›Paper›PMID 26866373›Full record

ArticlePloS one2016

Targeting HO-1 by Epigallocatechin-3-Gallate Reduces Contrast-Induced Renal Injury via Anti-Oxidative Stress and Anti-Inflammation Pathways.

Zhao Gao, Yu Han, Yunhui Hu, Xiaoyan Wu, Yongbin Wang, Xiaoqun Zhang, Jinjuan Fu, Xue Zou, Jun Zhang, Xiongwen Chen and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
7.0field-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.

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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 108 citations in OpenAlex.

  1. Green tea (Camellia sinensis) for the prevention of cancer.The Cochrane database of systematic reviews · 2020
    Pooled it
  2. Article
  3. Review
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  8. Article
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  10. Article
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  13. Quantitative proteomics revealsFrontiers in pharmacology · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Immunomodulatory Effects of Green Tea Polyphenols.Molecules (Basel, Switzerland) · 2021
    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

13 authors at 3 institutions in 2 countries.

Zhao GaoDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Yu HanDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Yunhui HuDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Xiaoyan WuDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Yongbin WangDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Xiaoqun ZhangDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Jinjuan FuDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Xue ZouDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Jun ZhangDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Xiongwen ChenDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Pedro A JoseDepartment of Medicine, Division of Renal Disease and Hypertension, The George Washington University School of Medicine & Health Sciences, Washington, DC, United States of America.
Xi LuDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Chunyu ZengDepartment of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, P.R. China.
Daping Hospital · CNArmy Medical University · CNGeorge Washington University · US

Funding

Protein Kinase A Inhibitor Peptide (PKI) and Cardiac Protection in Heart FailureR01HL088243 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI CHEN, XIONGWEN · 2007 to 2017
$4.0M
NHLBI NIH HHS R01 HL088243
6 · The paper itself

Abstract

Both oxidative stress and inflammation are involved in the pathogenesis of contrast-induced nephropathy (CIN). Epigallocatechin-3-gallate (EGCG), a purified catechin from green tea, has antioxidant and anti-inflammatory effects. However, it is unknown whether or not EGCG is effective in treating CIN. Our present study found that intravenous administration of EGCG, either before or just after the establishment of CIN, had a protective effect, determined by normalization of serum creatinine and blood urea nitrogen levels, improvement in renal histopathological scoring and alleviation of apoptosis, accompanied by decreased oxidative stress and inflammation. Because EGCG is a potent inducer of the antioxidant heme oxygenase-1 (HO-1), we studied HO-1 signaling in CIN. HO-1 levels were increased in CIN; treatment with EGCG further increased HO-1 levels, accompanied by an increase in Nrf2, a regulator of antioxidant proteins. Interestingly, blockade of HO-1 with protoporphyrin IX zinc(II) (ZnPP) prevented the protective effect of EGCG on CIN. ZnPP also blocked the ability of EGCG to increase the activity of an antioxidant (superoxide dismutase), and decrease markers of oxidative stress (myeloperoxidase and malondialdehyde) and inflammation (myeloperoxidase and IL-1β), indicating that HO-1 is the upstream molecule that regulates the EGCG-mediated protection. To determine further the role of HO-1 on the EGCG-mediated inhibition of inflammation, we studied the effect of EGCG on the NLRP3 inflammasome, an upstream signaling of IL-1β. EGCG down-regulated NLRP3 expression, which was blocked by ZnPP, indicating that HO-1 links EGCG with NLRP3. Therefore, EGCG, via up-regulation of HO-1, protects against CIN by amelioration of oxidative stress and inflammation.

Indexed as

Oxidative StressAnimalsAntioxidantsApoptosisCarrier ProteinsCatechinContrast MediaDown-RegulationHeme Oxygenase (Decyclizing)InflammasomesInflammationIn Situ Nick-End LabelingKidneyKidney DiseasesMaleMicroscopy, FluorescenceAntioxidantsCarrier ProteinsCatechinContrast Mediaepigallocatechin gallateHeme Oxygenase (Decyclizing)Hmox1 protein, ratInflammasomesNLR Family, Pyrin Domain-Containing 3 ProteinNlrp3 protein, ratProtoporphyrinszinc protoporphyrin

Identifiers

PMID26866373
PMCPMC4750900
OpenAlexW2269977421

What OpenQuestion holds

Textmetadata
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.