Evidence map›Paper›PMID 21826232›Full record

ArticlePloS one2011

Exposure to moderate air pollution during late pregnancy and cord blood cytokine secretion in healthy neonates.

Philipp Latzin, Urs Frey, Jakob Armann, Elisabeth Kieninger, Oliver Fuchs, Martin Röösli, Bianca Schaub

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 11% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
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  12. A cohort study of the multipollutant effects of PMEnvironmental epidemiology (Philadelphia, Pa.) · 2024
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  16. Before the first breath: why ambient air pollution and climate change should matter to neonatal-perinatal providers.Journal of perinatology : official journal of the California Perinatal Association · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. Ambient air pollution and inflammatory effects in a Canadian pregnancy cohort.Environmental epidemiology (Philadelphia, Pa.) · 2021
    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

7 authors at 5 institutions in 2 countries.

Philipp LatzinDivision of Respiratory Medicine, Department of Paediatrics, Inselspital, University of Bern, Bern, Switzerland.
Urs Frey
Jakob Armann
Elisabeth Kieninger
Oliver Fuchs
Martin Röösli
Bianca Schaub
Ludwig-Maximilians-Universität München · DEUniversity Hospital of Bern · CHSwiss Tropical and Public Health Institute · CHUniversity Children’s Hospital Basel · CHUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesAmbient air pollution can alter cytokine concentrations as shown in vitro and following short-term exposure to high air pollution levels in vivo. Exposure to pollution during late pregnancy has been shown to affect fetal lymphocytic immunophenotypes. However, effects of prenatal exposure to moderate levels of air pollutants on cytokine regulation in cord blood of healthy infants are unknown.

methodsIn a birth cohort of 265 healthy term-born neonates, we assessed maternal exposure to particles with an aerodynamic diameter of 10 µm or less (PM₁₀), as well as to indoor air pollution during the last trimester, specifically the last 21, 14, 7, 3 and 1 days of pregnancy. As a proxy for traffic-related air pollution, we determined the distance of mothers' homes to major roads. We measured cytokine and chemokine levels (MCP-1, IL-6, IL-10, IL-1ß, TNF-α and GM-CSF) in cord blood serum using LUMINEX technology. Their association with pollution levels was assessed using regression analysis, adjusted for possible confounders.

resultsMean (95%-CI) PM₁₀ exposure for the last 7 days of pregnancy was 18.3 (10.3-38.4 µg/m³). PM₁₀ exposure during the last 3 days of pregnancy was significantly associated with reduced IL-10 and during the last 3 months of pregnancy with increased IL-1ß levels in cord blood after adjustment for relevant confounders. Maternal smoking was associated with reduced IL-6 levels. For the other cytokines no association was found.

conclusionsOur results suggest that even naturally occurring prenatal exposure to moderate amounts of indoor and outdoor air pollution may lead to changes in cord blood cytokine levels in a population based cohort.

Indexed as

Air PollutionAir Pollution, IndoorChemokine CCL2FemaleFetal BloodGranulocyte-Macrophage Colony-Stimulating FactorHumansInfant, NewbornInterleukin-10Interleukin-6Maternal ExposurePregnancyTumor Necrosis Factor-alphaChemokine CCL2Granulocyte-Macrophage Colony-Stimulating FactorInterleukin-10Interleukin-6Tumor Necrosis Factor-alpha

Identifiers

PMID21826232
PMCPMC3149643
OpenAlexW2169290064

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.