Evidence map›Paper›PMID 22173668›Full record

ArticleBritish journal of cancer2012

Blood leukocyte Alu and LINE-1 methylation and gastric cancer risk in the Shanghai Women's Health Study.

Y Gao, A Baccarelli, X O Shu, B-T Ji, K Yu, L Tarantini, G Yang, H-L Li, L Hou, N Rothman and 3 more

Abstract read
In one paragraph

Article in British journal of cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  15. LINE-1 in cancer: multifaceted functions and potential clinical implications.Genetics in medicine : official journal of the American College of Medical Genetics · 2016
    Review
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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

13 authors.

Y GaoGenetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-7236, USA. gaoying@mail.nih.gov
A Baccarelli
X O Shu
B-T Ji
K Yu
L Tarantini
G Yang
H-L Li
L Hou
N Rothman
W Zheng
Y-T Gao
W-H Chow

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
Intramural NIH HHSNIEHS NIH HHS ES00002NIEHS NIH HHS P30 ES000002
6 · The paper itself

Abstract

backgroundRecent data suggest a link between blood leukocyte DNA methylation, and cancer risk. However, reports on DNA methylation from a prospective study are unavailable for gastric cancer.

methodsWe explored the association between methylation in pre-diagnostic blood leukocyte DNA and gastric cancer risk in a case-control study nested in the prospective Shanghai Women's Health Study cohort. Incident gastric cancer cases (n=192) and matched controls (n=384) were included in the study. Methylation of Alu and long interspersed nucleotide elements (LINE)-1 were evaluated using bisulphite pyrosequencing. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated from logistic regression adjusting for potential confounders.

resultsAlu methylation was inversely associated with gastric cancer risk, mainly among cases diagnosed one or more years after blood collection. After excluding cases diagnosed during the first year of follow-up, the ORs for the third, second, and first quartiles of Alu methylation compared with the highest quartile were 2.43 (1.43-4.13), 1.47(0.85-2.57), and 2.22 (1.28-3.84), respectively. This association appeared to be modified by dietary intake, particularly isoflavone. In contrast, LINE-1 methylation levels were not associated with gastric cancer risk.

conclusionEvidence from this prospective study is consistent with the hypothesis that DNA hypomethylation in blood leukocytes may be related to cancer risk, including risk of gastric cancer.

Indexed as

Alu ElementsLong Interspersed Nucleotide ElementsAdultAgedCase-Control StudiesChinaDNA MethylationDNA, NeoplasmFemaleHealth PromotionHumansLeukocytesMiddle AgedProspective StudiesRegistriesRisk FactorsDNA, Neoplasm

Identifiers

PMID22173668
PMCPMC3273339

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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.