Evidence map›Paper›PMID 28257446›Full record

SynthesisPloS one2017

Breastfeeding effects on DNA methylation in the offspring: A systematic literature review.

Fernando Pires Hartwig, Christian Loret de Mola, Neil Martin Davies, Cesar Gomes Victora, Caroline L Relton

Erratum issuedOpen access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
5.3field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Article
  7. Human breast milk and its impact on inflammatory bowel disease.Journal of smooth muscle research = Nihon Heikatsukin Gakkai kikanshi · 2025
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Health of the Newborn and Breastfeeding during the COVID-19 Pandemic: A Literature Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Review
  17. Review
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Fernando Pires HartwigPostgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
Christian Loret de MolaPostgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
Neil Martin DaviesMRC Integrative Epidemiology Unit, School of Social & Community Medicine, University of Bristol, Bristol, United Kingdom.
Cesar Gomes VictoraPostgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
Caroline L ReltonMRC Integrative Epidemiology Unit, School of Social & Community Medicine, University of Bristol, Bristol, United Kingdom.
Universidade Federal de Pelotas · BRUniversity of Bristol · GB

Funding

Medical Research Council MC_UU_12013/2
6 · The paper itself

Abstract

backgroundBreastfeeding benefits both infants and mothers. Recent research shows long-term health and human capital benefits among individuals who were breastfed. Epigenetic mechanisms have been suggested as potential mediators of the effects of early-life exposures on later health outcomes. We reviewed the literature on the potential effects of breastfeeding on DNA methylation.

methodsStudies reporting original results and evaluating DNA methylation differences according to breastfeeding/breast milk groups (e.g., ever vs. never comparisons, different categories of breastfeeding duration, etc) were eligible. Six databases were searched simultaneously using Ovid, and the resulting studies were evaluated independently by two reviewers.

resultsSeven eligible studies were identified. Five were conducted in humans. Studies were heterogeneous regarding sample selection, age, target methylation regions, methylation measurement and breastfeeding categorisation. Collectively, the studies suggest that breastfeeding might be negatively associated with promoter methylation of LEP (which encodes an anorexigenic hormone), CDKN2A (involved in tumour suppression) and Slc2a4 genes (which encodes an insulin-related glucose transporter) and positively with promoter methylation of the Nyp (which encodes an orexigenic neuropeptide) gene, as well as influence global methylation patterns and modulate epigenetic effects of some genetic variants.

conclusionsThe findings from our systematic review are far from conclusive due to the small number of studies and their inherent limitations. Further studies are required to understand the actual potential role of epigenetics in the associations of breastfeeding with later health outcomes. Suggestions for future investigations, focusing on epigenome-wide association studies, are provided.

Indexed as

Breast FeedingDNA MethylationEpigenesis, GeneticCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p18FemaleGlucose Transporter Type 4HumansInfantLongitudinal StudiesMaleMilk, HumanCDKN2A protein, humanCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p18Glucose Transporter Type 4SLC2A4 protein, human

Identifiers

PMID28257446
PMCPMC5336253
OpenAlexW2601615751

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.