Evidence map›Paper›PMID 27933755›Full record

ArticlePediatric obesity2017

Maternal pre-pregnancy BMI downregulates neonatal cord blood LEP methylation.

R Kadakia, Y Zheng, Z Zhang, W Zhang, L Hou, J L Josefson

Open access · greenAbstract read
In one paragraph

Article in Pediatric obesity, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
6.4field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Epigenetic Mechanisms in Childhood Obesity.Annals of the New York Academy of Sciences · 2025
    Pooled it
  2. Cord Blood Adipocytokines and Body Composition in Early Childhood: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2021
    Pooled it
  3. Review
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  5. Maternal Nutrition, Toxicants, and Epigenetic Programming of Obesity Across Generations.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
    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

6 authors at 1 institution in 1 country.

R KadakiaDivision of Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
Y ZhengDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Z ZhangDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
W ZhangDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
L HouDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
J L JosefsonDivision of Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.
Northwestern University · US

Funding

Career Development in Women's Health (CDWH)K12HD055884 · NICHD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI DUNAIF, ANDREA E · 2007 to 2016
$4.2M
NICHD NIH HHS K12 HD055884
6 · The paper itself

Abstract

backgroundNeonatal adiposity has many determinants and may be a risk factor for future obesity. Epigenetic regulation of metabolically important genes is a potential contributor.

objectivesThe objective of the study is to determine whether methylation changes in the LEP gene in cord blood DNA are impacted by the maternal environment or affect neonatal adiposity measures.

methodsA cross-sectional study of 114 full-term neonates born to healthy mothers with normal glucose tolerance was performed. Cord blood was assayed for leptin and genome-wide DNA methylation profiles via the Illumina 450K platform. Neonatal body composition was measured by air displacement plethysmography. Multivariate linear regression models and semi-partial correlation coefficients were used to analyze associations. False discovery rate was estimated to account for multiple comparisons.

resultsMaternal pre-pregnancy BMI was associated with decreased methylation at five CpG sites near the LEP transcription start site in an adjusted model (false discovery rate <0.022 for each site). The association between maternal BMI and cord blood leptin approached significance (r = 0.18, p = 0.054). Cord blood leptin was positively correlated with neonatal adiposity measures including birth weight (r = 0.45, p < 0.001), fat mass (r = 0.47, p < 0.001) and percent body fat (r = 0.44, p < 0.001).

conclusionsMaternal pre-pregnancy BMI is strongly associated with decreased cord blood LEP gene methylation and may mediate the well-known association between maternal pre-pregnancy BMI and neonatal adiposity.

Indexed as

Body Mass IndexAdiposityAdultBirth WeightBody CompositionCross-Sectional StudiesDNA MethylationDown-RegulationEpigenesis, GeneticFemaleFetal BloodHumansInfant, NewbornLeptinMalePlethysmographyLeptinEpigeneticsleptinneonatal adiposityobesity

Identifiers

PMID27933755
PMCPMC5462869
OpenAlexW2565408327

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.