Evidence map›Paper›PMID 23875062›Full record

ArticleInternational journal of molecular epidemiology and genetics2013

The methylation of the LEPR/LEPROT genotype at the promoter and body regions influence concentrations of leptin in girls and BMI at age 18 years if their mother smoked during pregnancy.

Mitra Yousefi, Wilfried Karmaus, Hongmei Zhang, Susan Ewart, Hasan Arshad, John W Holloway

Abstract read
In one paragraph

Article in International journal of molecular epidemiology and genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
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  7. Article
  8. Review
  9. Alternative splicing of leptin receptor overlapping transcript in osteosarcoma.Experimental biology and medicine (Maywood, N.J.) · 2020
    Article
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  15. Observational
  16. Observational
  17. Multigenerational cohorts in patients with asthma and allergy.The Journal of allergy and clinical immunology · 2017
    Review
  18. Article
  19. Article
  20. Article
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 4 institutions in 2 countries.

Mitra YousefiDepartment of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina Columbia, SC, USA.
Wilfried Karmaus
Hongmei Zhang
Susan Ewart
Hasan Arshad
John W Holloway
University of Southampton · GBDean College · USUniversity of Memphis · USUniversity of South Carolina · US

Funding

Transgenerational epigenetic inheritance of allergy in a multigenerational cohortR01AI091905 · NIAID · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI KARMAUS, WILFRIED JJ · 2011 to 2015
$2.7M
Genetic &epidemiologic cohort study of asthma &allergyR01AI061471 · NIAID · MICHIGAN STATE UNIVERSITY · PI EWART, SUSAN L · 2005 to 2009
$1.8M
Epidemiology of asthma: risk and prognosis in a cohort from birth to adolescenceR01HL082925 · NHLBI · ST. MARY'S HOSPITAL NEWPORT · PI ARSHAD, SYED HASAN · 2007 to 2010
$1.7M
NHLBI NIH HHS R01 HL082925NIAID NIH HHS R01 AI061471NIAID NIH HHS R01 AI091905Wellcome Trust
6 · The paper itself

Abstract

To determine whether DNA methylation (DNA-M) of the leptin receptor genotype (LEPR/LEPROT) links gestational smoking and leptin serum levels and BMI later in life, we focused on female offspring, 18 years of age, from the Isle of Wight Birth Cohort (IOWBC). Leptin binds to the leptin receptor encoded by the LEPR/LEPROT genotype. Using general linear models, we tested a two-stage model. First, we investigated whether single nucleotide polymorphisms (SNPs) acting as methylation quantitative trait loci (methQTLs) depending on gestational smoking were related to differentially methylated cytosine-phosphate-guanine (CpG) sites. In stage 2, we tested whether the selected CpG sites, in interaction with other SNPs (modifiable genetic variants, modGV), are associated with serum leptin and BMI (stage 2). Children from the IOWBC were followed from birth to age 18. Information on gestational smoking was gathered upon delivery. SNPs tagging LEPR and LEPROT genes were genotyped. Data on LEPR/LEPROTDNA-M and leptin were obtained from blood samples drawn at age 18; to determine BMI, height and weight were ascertained. Blood samples were provided by 238 girls. Of the 21 CpG sites, interactions between gestational smoking and SNPs were detected for 16 CpGs. Methylation of seven of the 16 CpGs were, in interaction with modGVs, associated with leptin levels at age 18 years. Two CpGs survived a multiple testing penalty and were also associated with BMI. This two-stage model may explain why maternal smoking has a long-term effect on leptin levels and BMI in girls at age 18 years.

Indexed as

BMICpG sitesin utero smoking exposureLEPRLEPROTleptinrs12059300

Identifiers

PMID23875062
PMCPMC3709113
OpenAlexW1891676043

What OpenQuestion holds

Textmetadata
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.