Evidence map›Paper›PMID 21134244›Full record

ArticleJournal of experimental & clinical cancer research : CR2010

8-oxo-7,8-dihydro-2'-deoxyguanosine as a biomarker of oxidative damage in oesophageal cancer patients: lack of association with antioxidant vitamins and polymorphism of hOGG1 and GST.

Stéphanie Lagadu, Mathilde Lechevrel, François Sichel, Jean Breton, Didier Pottier, Rémy Couderc, Fathi Moussa, Virginie Prevost

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental & clinical cancer research : CR, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 7 pooled it
1.5field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 7 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  4. The hOGG1 Ser326Cys polymorphism contributes to digestive system cancer susceptibility: evidence from 48 case-control studies.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
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  16. Oxidized extracellular DNA as a stress signal in human cells.Oxidative medicine and cellular longevity · 2013
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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

8 authors at 6 institutions in 1 country.

Stéphanie LagaduGroupe Régional d'Etudes sur le Cancer-UPRES EA 1772-IFR 146, Université de Caen-Basse-Normandie and Centre de Lutte Contre le Cancer François Baclesse, Caen, France.
Mathilde Lechevrel
François Sichel
Jean Breton
Didier Pottier
Rémy Couderc
Fathi Moussa
Virginie Prevost
Université de Caen Normandie · FRAssistance Publique – Hôpitaux de Paris · FRCentre François Baclesse · FRCentre National de la Recherche Scientifique · FRSorbonne Université · FRUnité de recherche interdisciplinaire pour la prévention et le traitement des cancers

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe present report was designed to investigate the origins of elevated oxidative stress measured in cancer patients in our previous work related to a case-control study (17 cases, 43 controls) on oesophageal cancers. The aim was to characterize the relationship between the levels of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), antioxidant vitamins and genetic susceptibility.

methods8-oxodG was analysed in peripheral blood mononuclear cells (PBMCs) by High Performance Liquid Chromatography with Electrochemical Detection (HPLC-ED). Analysis of gene polymorphisms in GSTM1 and GSTT1 was performed by multiplex PCR and in GSTP1 and hOGG1 by a PCR-RFLP method. Reversed-phase HPLC with UV detection at 294 nm was used to measure vitamins A and E in serum from the same blood samples.

resultsWe observed that in our combined population (cases and control, n = 60), there was no statistically significant correlation between the levels of 8-oxodG and (i) the serum concentration of antioxidant vitamins, vitamin A (P = 0.290) or vitamin E (P = 0.813), or (ii) the incidence of the Ser326Cys polymorphic variant (P = 0.637) of the hOGG1 gene. Also, the levels of 8-oxodG were not significantly associated with polymorphisms in metabolite-detoxifying genes, such as GSTs, except for the positive correlation with Val/Val GST P1 allele (P < 0.0001).

conclusionsThe weakness of our cohort size notwithstanding, vitamins levels in serum and genetic polymorphisms in the hOGG1 or GST genes do not appear to be important modulators of 8-oxodG levels.

Indexed as

Genetic Predisposition to Disease8-Hydroxy-2'-DeoxyguanosineAntioxidantsBiomarkers, TumorChromatography, High Pressure LiquidDeoxyguanosineDNA GlycosylasesEsophageal NeoplasmsGlutathione SynthaseHumansOxidative StressPolymorphism, Single NucleotideVitamins8-Hydroxy-2'-DeoxyguanosineAntioxidantsBiomarkers, TumorDeoxyguanosineDNA GlycosylasesGlutathione Synthaseoxoguanine glycosylase 1, humanVitamins

Identifiers

PMID21134244
PMCPMC3004823
OpenAlexW2112340269

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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.