Evidence map›Paper›PMID 33327930›Full record

ArticleJournal of neurodevelopmental disorders2020

Maternal immune response and air pollution exposure during pregnancy: insights from the Early Markers for Autism (EMA) study.

Heather E Volk, Bo Park, Calliope Hollingue, Karen L Jones, Paul Ashwood, Gayle C Windham, Fred Lurman, Stacey E Alexeeff, Martin Kharrazi, Michelle Pearl and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neurodevelopmental disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
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  11. AssessingFrontiers in immunology · 2025
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  13. Ambient air pollution and adverse birth outcomes: A review of underlying mechanisms.BJOG : an international journal of obstetrics and gynaecology · 2024
    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

12 authors at 6 institutions in 1 country.

Heather E VolkDepartment of Mental Health, Wendy Klag Center for Autism and Developmental Disabilities, Bloomberg School of Public Health, Johns Hopkins University, Kennedy Krieger Institute Intellectual and Developmental Disabilities Research Center, 624 N. Broadway, HH833, Baltimore, MD, 21205, USA. hvolk1@jhu.edu.ORCID 0000-0002-5415-2494
Bo ParkDepartment of Public Health, California State University, Fullerton, CA, USA.
Calliope HollingueDepartment of Mental Health, Wendy Klag Center for Autism and Developmental Disabilities, Bloomberg School of Public Health, Johns Hopkins University, Kennedy Krieger Institute Intellectual and Developmental Disabilities Research Center, 624 N. Broadway, HH833, Baltimore, MD, 21205, USA.
Karen L JonesUC Davis MIND Institute, University of California Davis, Davis, CA, USA.
Paul AshwoodUC Davis MIND Institute, University of California Davis, Davis, CA, USA.
Gayle C WindhamEnvironmental Health Investigations Branch, California Department of Public Health, Richmond, CA, USA.
Fred LurmanSonoma Technology, Inc., Petaluma, CA, USA.
Stacey E AlexeeffDivision of Research, Kaiser Permanente of Northern California, Oakland, CA, USA.
Martin KharraziEnvironmental Health Investigations Branch, California Department of Public Health, Richmond, CA, USA.
Michelle PearlEnvironmental Health Investigations Branch, California Department of Public Health, Richmond, CA, USA.
Judy Van de WaterUC Davis MIND Institute, University of California Davis, Davis, CA, USA.
Lisa A CroenDivision of Research, Kaiser Permanente of Northern California, Oakland, CA, USA.
California Department of Public Health · USUniversity of California, Davis · USKaiser Permanente · USKennedy Krieger Institute · USCalifornia State University, Fullerton · USSonoma Technology (United States) · US

Funding

Research Project: Pathologic Significance of Maternal AutoantibodiesP50HD103526 · NICHD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI JUDY A. VAN DE WATER · 2020 to 2026
$9.7M
PSYCHIATRIC EPIDEMIOLOGY TRAINING PROGRAMT32MH014592 · NIMH · JOHNS HOPKINS UNIVERSITY · PI HEATHER E VOLK, Peter P. Zandi · 1985 to 2026
$8.5M
Rodent Behavior CoreU54HD079125 · NICHD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI ABBEDUTO, LEONARD J. · 2013 to 2019
$8.5M
Translational Neuroscience CoreU54HD079123 · NICHD · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI FATEMI, S. ALI, SCHLAGGAR, BRADLEY L · 2014 to 2019
$7.9M
Prenatal and Neonatal Biologic Markers for AutismR01ES016669 · NIEHS · KAISER FOUNDATION RESEARCH INSTITUTE · PI CROEN, LISA A · 2010 to 2014
$3.5M
Maternal asthma and brain developmentR21MH116383 · NIMH · UNIVERSITY OF CALIFORNIA AT DAVIS · PI ASHWOOD, PAUL · 2018 to 2019
$432k
The effects of environmental air pollutants on maternal allergic asthma and its neurobiological consequencesR21ES025560 · NIEHS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI ASHWOOD, PAUL · 2017 to 2018
$432k
Autism Speaks #8463NICHD NIH HHS P50 HD103526NIEHS NIH HHS 016669NIEHS NIH HHS R21 ES025560NIMH NIH HHS MH014592NIMH NIH HHS R21 MH116383NIMH NIH HHS T32 MH014592
6 · The paper itself

Abstract

backgroundPerinatal exposure to air pollution and immune system dysregulation are two factors consistently associated with autism spectrum disorders (ASD) and other neurodevelopmental outcomes. However, little is known about how air pollution may influence maternal immune function during pregnancy.

objectivesTo assess the relationship between mid-gestational circulating levels of maternal cytokines/chemokines and previous month air pollution exposure across neurodevelopmental groups, and to assess whether cytokines/chemokines mediate the relationship between air pollution exposures and risk of ASD and/or intellectual disability (ID) in the Early Markers for Autism (EMA) study.

methodsEMA is a population-based, nested case-control study which linked archived maternal serum samples collected during weeks 15-19 of gestation for routine prenatal screening, birth records, and Department of Developmental Services (DDS) records. Children receiving DDS services for ASD without intellectual disability (ASD without ID; n = 199), ASD with ID (ASD with ID; n = 180), ID without ASD (ID; n = 164), and children from the general population (GP; n = 414) with no DDS services were included in this analysis. Serum samples were quantified for 22 cytokines/chemokines using Luminex multiplex analysis technology. Air pollution exposure for the month prior to maternal serum collection was assigned based on the Environmental Protection Agency's Air Quality System data using the maternal residential address reported during the prenatal screening visit.

resultsPrevious month air pollution exposure and mid-gestational maternal cytokine and chemokine levels were significantly correlated, though weak in magnitude (ranging from - 0.16 to 0.13). Ten pairs of mid-pregnancy immune markers and previous month air pollutants were significantly associated within one of the child neurodevelopmental groups, adjusted for covariates (p < 0.001). Mid-pregnancy air pollution was not associated with any neurodevelopmental outcome. IL-6 remained associated with ASD with ID even after adjusting for air pollution exposure.

conclusionThis study suggests that maternal immune activation is associated with risk for neurodevelopmental disorders. Furthermore, that prenatal air pollution exposure is associated with small, but perhaps biologically relevant, effects on maternal immune system function during pregnancy. Additional studies are needed to better evaluate how prenatal exposure to air pollution affects the trajectory of maternal immune activation during pregnancy, if windows of heightened susceptibility can be identified, and how these factors influence neurodevelopment of the offspring.

Indexed as

Air PollutionAutistic DisorderImmunityPregnancyPrenatal Exposure Delayed EffectsBiomarkersCase-Control StudiesChildFemaleHumansMaleUnited StatesBiomarkersAir pollutionAutism spectrum disorderImmune responseIntellectual disabilityPrenatal exposure

Identifiers

PMID33327930
PMCPMC7745402
OpenAlexW3112291276

What OpenQuestion holds

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Registered trials

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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.