Evidence map›Paper›PMID 29979694›Full record

ArticlePloS one2018

Air pollution during pregnancy and placental adaptation in the levels of global DNA methylation.

Zhila Maghbooli, Arash Hossein-Nezhad, Elham Adabi, Effat Asadollah-Pour, Mahsa Sadeghi, Sara Mohammad-Nabi, Leila Zakeri Rad, Ali-Asghar Malek Hosseini, Mehrnaz Radmehr, Fatemeh Faghihi and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 4 pooled it
6.1field-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

55 citing papers in PubMed, 4 syntheses or guidelines pooled it, 109 citations in OpenAlex.

  1. Airborne contaminant exposure and bone development: a systematic review and meta-analysis.Toxicological sciences : an official journal of the Society of Toxicology · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Prenatal PMNature communications · 2026
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Can Breathing Poor-quality Air Lead to Poor-quality Sleep in Children?American journal of respiratory and critical care medicine · 2023
    Article
  19. Review
  20. Review
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

14 authors at 7 institutions in 2 countries.

Zhila MaghbooliMS Research Center, Neurosciences Institute of Tehran University of Medical Sciences, Tehran, Iran.ORCID 0000-0001-8858-6269
Arash Hossein-NezhadDepartment of Medicine, Section of Endocrinology, Nutrition, and Diabetes, Vitamin D, Skin and Bone Research Laboratory, Boston University Medical Center, Boston, Massachusetts, United States of America.
Elham AdabiEndocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Effat Asadollah-PourEndocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Mahsa SadeghiEndocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Sara Mohammad-NabiEndocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Leila Zakeri RadSchool of Nursing and Midwifery, Tehran University of Medical sciences, Tehran, Iran.
Ali-Asghar Malek HosseiniEndocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Mehrnaz RadmehrPregnancy and Gynecology Unit, Milad hospital, Tehran, Iran.
Fatemeh FaghihiGenetic Department, Azad University of Medical Sciences, Tehran, Iran.
Atoosa AghaeiGenetic Department, Azad University of Medical Sciences, Tehran, Iran.
Abolfazl OmidifarDepartment of Medical Laboratory Sciences, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Yasaman AghababeiMS Research Center, Neurosciences Institute of Tehran University of Medical Sciences, Tehran, Iran.
Hadis BehzadiGenetic Department, Azad University of Medical Sciences, Tehran, Iran.
Tehran University of Medical Sciences · IRIslamic Azad University Medical Branch of Tehran · IRNeurosciences Institute · USBoston University · USIranshahr University · IRMilad Hospital · IRShahid Beheshti University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHealth in early life is crucial for health later in life. Exposure to air pollution during embryonic and early-life development can result in placental epigenetic modification and foetus reprogramming, which can influence disease susceptibility in later life. Objectives: The aim of this paper was to investigate the placental adaptation in the level of global DNA methylation and differential gene expression in the methylation cycle in new-borns exposed to high fine particulate matter in the foetal stage. STUDY

designThis is a nested case-control study. We enrolled pregnant healthy women attending prenatal care clinics in Tehran, Iran, who were residents of selected polluted and unpolluted regions, before the 14th week of pregnancy. We calculated the regional background levels of particle mass- particles with aerodynamics diameter smaller than 2.5 μm (PM2.5) and 10 μm (PM10)-of two regions of interest. At the time of delivery, placental tissue was taken for gene expression and DNA methylation analyses. We also recorded birth outcomes (the new-born's sex, birth date, birth weight and length, head and chest circumference, gestational age, Apgar score, and level of neonatal care required).

resultsAs regards PM2.5 and PM10 concentrations in different time windows of pregnancy, there were significantly independent positive correlations between PM10 and PM2.5 in the first trimester of all subjects and placental global DNA methylation levels (p-value = 0.01, p-value = 0.03, respectively). The gene expression analysis showed there was significant correlation between S-adenosylmethionine expression and PM2.5 (p = 0.003) and PM10 levels in the first trimester (p = 0.03).

conclusionOur data showed prenatal exposures to air pollutants in the first trimester could influence placental adaptation by DNA methylation.

Indexed as

DNA MethylationAcclimatizationAdultAir PollutionBiomarkersBirth WeightCase-Control StudiesCohort StudiesEpigenesis, GeneticFemaleHumansInfant, NewbornIranMaternal ExposureParticulate MatterPlacentaBiomarkersParticulate Matter

Identifiers

PMID29979694
PMCPMC6034814
OpenAlexW2822549645

What OpenQuestion holds

Textmetadata
LicenceCC0
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.