Evidence map›Paper›PMID 24972507›Full record

ArticleEnvironmental research2014

The impact of first trimester phthalate and phenol exposure on IGF2/H19 genomic imprinting and birth outcomes.

Jessica LaRocca, Alexandra M Binder, Thomas F McElrath, Karin B Michels

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 4 pooled it
10.0field-weighted citation impact, top 2% 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

76 citing papers in PubMed, 4 syntheses or guidelines pooled it, 151 citations in OpenAlex.

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  3. Phthalate Exposures and Placental Health in Animal Models and Humans: A Systematic Review.Toxicological sciences : an official journal of the Society of Toxicology · 2022
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16 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Jessica LaRoccaHarvard University Center for the Environment, Harvard University, Cambridge, MA 02138, USA; Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women׳s Hospital, 221 Longwood Avenue, Boston, MA 02115, USA.
Alexandra M BinderDepartment of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA; Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women׳s Hospital, 221 Longwood Avenue, Boston, MA 02115, USA.
Thomas F McElrathBrigham and Women׳s Hospital, Division of Maternal-Fetal Medicine, Boston, MA 02115, USA.
Karin B MichelsHarvard University Center for the Environment, Harvard University, Cambridge, MA 02138, USA; Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA; Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women׳s Hospital, 221 Longwood Avenue, Boston, MA 02115, USA. Electronic address: kmichels@research.bwh.harvard.edu.
Brigham and Women's Hospital · USHarvard University Press · US

Funding

Bisphenol A and Phthalate Exposure in Relation to Fetal Growth and Preterm BirthR01ES018872 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MEEKER, JOHN D. · 2010 to 2014
$2.6M
Predoctoral Training Program in Reproductive, Perinatal & Pediatric EpidemiologyT32HD060454 · NICHD · HARVARD SCHOOL OF PUBLIC HEALTH · PI MICHELS, KARIN B · 2010 to 2014
$1.1M
Epigenetic Changes After Intrauterine Exposure to Endocrine Disrupting ChemicalsK01ES015771 · NIEHS · BRIGHAM AND WOMEN'S HOSPITAL · PI MICHELS, KARIN B · 2007 to 2009
$458k
Maternal obesity, intrauterine gene expression and breast cancerR21CA128382 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI MICHELS, KARIN B · 2006 to 2007
$361k
NCI NIH HHS R21 CA128382NCI NIH HHS R21CA128382NICHD NIH HHS T32 HD060454NICHD NIH HHS T32HD060454NIEHS NIH HHS K01 ES015771NIEHS NIH HHS K01ES015771NIEHS NIH HHS R01 ES018872NIEHS NIH HHS R01ES018872
6 · The paper itself

Abstract

Genomic imprinting leads to parent-of-origin specific gene expression and is determined by epigenetic modification of genes. The paternally expressed gene insulin-like growth-factor 2 (IGF2) is located about ~100kb from the maternally expressed non-coding gene H19 on human chromosome 11, and both genes play major roles in embryonic and placental growth. Given adverse gestational environments can influence DNA methylation patterns in extra-embryonic tissues, we hypothesized that prenatal exposure to endocrine disrupting chemicals (EDCs) alters H19 and IGF2 methylation in placenta. Our study was restricted to a total of 196 women co-enrolled in the Predictors of Preeclampsia Study and the Harvard Epigenetic Birth Cohort. First trimester urine concentrations of 8 phenols and 11 phthalate metabolites were measured and used to characterize EDC exposure profiles. We assessed methylation of differentially methylated regions (DMRs) by pyrosequencing of H19, IGF2DMR0, and IGF2DMR2 and correlated values with phenol and phthalate metabolites. We also assessed overall expression and allele-specific expression of H19 and IGF2. We found several significant associations between DNA methylation and additive biomarker measurements. A significant decrease in H19 methylation was associated with high levels of the sum (Σ) of phthalate metabolites and metabolites of low molecular weight (LMW) phthalates. Σphthalate and LMW phthalate concentrations were inversely associated with IGF2DMR0 methylation values. Variation in methylation was not associated with changes in allele-specific expression. However increased deviation of allele-specific expression of H19 was associated with Σdi(2-ethylhexyl) phthalate metabolites and high molecular weight phthalates. Neither methylation nor expression of these imprinted regions had a significant impact on birth length or birth weight. Overall, our study provides new insight into an epigenetic mechanism that occurs following EDC exposure.

Indexed as

AdultAllelesBiomarkersCohort StudiesDNA MethylationEndocrine DisruptorsFemaleGenomic ImprintingHumansInfant, NewbornInsulin-Like Growth Factor IIMalePhenolsPhthalic AcidsPlacentaPregnancyBiomarkersEndocrine DisruptorsH19 long non-coding RNAIGF2 protein, humanInsulin-Like Growth Factor IIPhenolsphthalic acidPhthalic AcidsRNA, Long NoncodingAllele-specific expressionEndocrine disruptorsEpidemiologyImprintingMethylation

Identifiers

PMID24972507
PMCPMC4155603
OpenAlexW2024828882

What OpenQuestion holds

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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.