Evidence map›Paper›PMID 24201298›Full record

ArticleScientific reports2013

Antioxidant induces DNA damage, cell death and mutagenicity in human lung and skin normal cells.

Linda Y Lu, Ning Ou, Qing-Bin Lu

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
6.8field-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

47 citing papers in PubMed, 124 citations in OpenAlex.

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  11. Evaluation of The Effects of Carob (Journal of clinical research in pediatric endocrinology · 2023
    Article
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  13. Effect ofJournal of medicinal food · 2022
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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

3 authors at 1 institution in 1 country.

Linda Y LuDepartment of Physics and Astronomy and Departments of Biology and Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1.
Ning Ou
Qing-Bin Lu
University of Waterloo · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Clinical trials have shown that antioxidant supplementation increased the risk of lung and skin cancers, but the underlying molecular mechanism is unknown. Here, we show that epigallocatechin gallate (EGCG) as an exemplary antioxidant induced significant death and DNA damage in human lung and skin normal cells through a reductive mechanism. Our results show direct evidence of reductive DNA damage in the cells. We found that EGCG was much more toxic against normal cells than H₂O₂ and cisplatin as toxic and cancer-causing agents, while EGCG at low concentrations (≤100 μM) increased slightly the lung cancer cell viability. EGCG induced DNA double-strand breaks and apoptosis in normal cells and enhanced the mutation frequency. These results provide a compelling explanation for the clinical results and unravel a new reductive damaging mechanism in cellular processes. This study therefore provides a fresh understanding of aging and diseases, and may lead to effective prevention and therapies.

Indexed as

AnimalsAntioxidantsApoptosisCatechinCell DeathCell LineCell Line, TumorCell SurvivalCHO CellsCricetulusDNA Breaks, Double-StrandedDNA DamageFibroblastsHumansHydrogen PeroxideHypoxanthine PhosphoribosyltransferaseAntioxidantsCatechinepigallocatechin gallateHydrogen PeroxideHypoxanthine PhosphoribosyltransferasePlant ExtractsTea

Identifiers

PMID24201298
PMCPMC3821017
OpenAlexW2040261396

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.