ArticleClinical epigenetics2015
Racial differences in IGF1 methylation and birth weight.
Article in Clinical epigenetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.
- Antidepressant medication during pregnancy and epigenetic changes in umbilical cord blood: a systematic review.Clinical epigenetics · 2016Pooled it
- DNA Methylation of iNOS, eNOS, TP53 and LINE-1 in Gingival Tissues of Cigarette Smokers, Heat-Not-Burn Smokers and Never Smokers: An Exploratory Study.Clinical and experimental dental research · 2025Article
- A biosocial return to race? A cautionary view for the postgenomic era.American journal of human biology : the official journal of the Human Biology Council · 2022Review
- Understanding Health Inequalities Through the Lens of Social Epigenetics.Annual review of public health · 2022Review
- Racial and ethnic disparities in adverse birth outcomes: Differences by racial residential segregation.SSM - population health · 2019Article
- Low Birth Weight Among Infants Born to Black Latina Women in the United States.Maternal and child health journal · 2019Article
- Explaining the Relationship Between Minority Group Status and Health Disparities: A Review of Selected Concepts.Health equity · 2019Review
- Translocation Breakpoints Preferentially Occur in Euchromatin and Acrocentric Chromosomes.Cancers · 2018Article
- DNA methylation-based variation between human populations.Molecular genetics and genomics : MGG · 2017Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundThe birth weight of Black neonates in the United States is consistently smaller than that of their White counterparts. Epigenetic differences between the races may be involved in such disparities. The goal of these analyses was to model the role of IGF1 methylation in mediating the association between race and birth weight. Data was collected on a cohort of 87 live born infants. IGF1 methylation was measured in DNA isolated from the mononuclear fraction of umbilical cord blood collected after delivery. Quantitative, loci-specific methylation was assessed using the Infinium HumanMethylation27 BeadArray (Illumina Inc., San Diego, CA). Locus specific methylation of the IGF1 CpG site was validated on a subset of the original sample (N = 61) using pyrosequencing. Multiple linear regression was used to examine relationships between IGF1 methylation, race, and birth weight. A formal mediation analysis was then used to estimate the relationship of IGF1 methylation to race and birth weight.
resultsBlack race was associated with a 7.45% decrease in gestational age-adjusted birth weight (aBW) (P = 0.04) and Black infants had significantly higher IGF1 methylation than non-Black infants (P < 0.05). A one standard deviation increase in IGF1 methylation was associated with a 3.32% decrease in aBW (P = 0.02). Including IGF1 methylation as a covariate, the effect of Black race on aBW was attenuated. A formal mediation analysis showed that the controlled direct effect of Black race on aBW was -6.26% (95% CI = -14.15, 1.06); the total effect of Black race on IGF1 methylation was -8.12% (95% CI = -16.08, -0.55); and the natural indirect effect of Black race on aBW through IGF1 methylation was -1.86% (95% CI = -5.22, 0.18).
conclusionThe results of the mediation analysis along with the multivariable regression analyses suggest that IGF1 methylation may partially mediate the relationship between Black race and aBW. Such epigenetic differences may be involved in racial disparities observed in perinatal outcomes.
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Registered trials
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.