Evidence map›Paper›PMID 22392079›Full record

ArticleCancer causes & control : CCC2012

Association of cord blood methylation fractions at imprinted insulin-like growth factor 2 (IGF2), plasma IGF2, and birth weight.

Cathrine Hoyo, Kimberly Fortner, Amy P Murtha, Joellen M Schildkraut, Adelheid Soubry, Wendy Demark-Wahnefried, Randy L Jirtle, Joanne Kurtzberg, Michele R Forman, Francine Overcash and 2 more

Abstract read
In one paragraph

Article in Cancer causes & control : CCC, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

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

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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

12 authors.

Cathrine HoyoDepartment of Community and Family Medicine, Duke University Medical Center, 2200 West Main Street, Ste. 600, Durham, NC 27705, USA. cathrine.hoyo@duke.edu
Kimberly Fortner
Amy P Murtha
Joellen M Schildkraut
Adelheid Soubry
Wendy Demark-Wahnefried
Randy L Jirtle
Joanne Kurtzberg
Michele R Forman
Francine Overcash
Zhiqing Huang
Susan K Murphy

Funding

Nutrition, Deregulation of Imprinted GenesR01ES016772 · NIEHS · DUKE UNIVERSITY · PI HOYO, CATHRINE · 2009 to 2013
$3.1M
Obesity and deregulation of imprinted genes in early lifeR01DK085173 · NIDDK · DUKE UNIVERSITY · PI HOYO, CATHRINE, MURPHY, SUSAN KAY · 2010 to 2013
$2.3M
Integrating Population and Basic Science in Cancer ResearchR25CA126938 · NCI · DUKE UNIVERSITY · PI SCHILDKRAUT, JOELLEN M. · 2009 to 2013
$1.7M
Insulin-like Growth Factors and Esophageal CancerK01CA104517 · NCI · DUKE UNIVERSITY · PI HOYO, CATHRINE · 2004 to 2008
$671k
In-utero Exposure and Infant Loss of IGF2 ImprintingR21ES014947 · NIEHS · DUKE UNIVERSITY · PI HOYO, CATHRINE · 2006 to 2007
$384k
NCI NIH HHS K01 CA104517NCI NIH HHS K01CA104517NCI NIH HHS R25 CA126938NIDDK NIH HHS R01 DK085173NIDDK NIH HHS R01DK085173NIEHS NIH HHS R01 ES016772NIEHS NIH HHS R01ES016772NIEHS NIH HHS R21 ES014947NIEHS NIH HHS R21ES014947
6 · The paper itself

Abstract

purposeAltered methylation at Insulin-like Growth Factor 2 (IGF2) regulatory regions has previously been associated with obesity, and several malignancies including colon, esophageal, and prostate adenocarcinomas, presumably via changes in expression and/or loss of imprinting, but the functional significance of these DNA methylation marks have not been demonstrated in humans. We examined associations among DNA methylation at IGF2 differentially methylated regions (DMRs), circulating IGF2 protein concentrations in umbilical cord blood (UCB) and birth weight in newborns.

methodsQuestionnaire data were obtained from 300 pregnant women recruited between 2005 and 2009. UCB DNA methylation was measured by bisulfite pyrosequencing. UCB plasma concentrations of soluble IGF2 were measured by ELISA assays. Generalized linear regression models were used to examine the relationship between DMR methylation and IGF2 levels.

resultsLower IGF2 DMR methylation was associated with elevated plasma IGF2 protein concentrations (β = -9.87, p < 0.01); an association that was stronger in infants born to obese women (pre-pregnancy BMI > 30 kg/m(2), β = -20.21, p < 0.0001). Elevated IGF2 concentrations were associated with higher birth weight (p < 0.0001) after adjusting for maternal race/ethnicity, pre-pregnancy BMI, cigarette smoking, gestational diabetes, and infant sex. These patterns of association were not apparent at the H19 DMR.

conclusionOur data suggest that variation in IGF2 DMR methylation is an important mechanism by which circulating IGF2 concentrations, a putative risk factor for obesity and cancers of the colon, esophagus, and prostate, are modulated; associations that may depend on pre-pregnancy obesity.

Indexed as

Fetal BloodBirth WeightDNA MethylationEnzyme-Linked Immunosorbent AssayFemaleGenomic ImprintingHumansInfant, NewbornInsulin-Like Growth Factor IIMaleIGF2 protein, humanInsulin-Like Growth Factor II

Identifiers

PMID22392079
PMCPMC3313040

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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.