Evidence map›Paper›PMID 34116378›Full record

ArticleEnvironment international2021

Periconception air pollution, metabolomic biomarkers, and fertility among women undergoing assisted reproduction.

Audrey J Gaskins, Ziyin Tang, Robert B Hood, Jennifer Ford, Joel D Schwartz, Dean P Jones, Francine Laden, Donghai Liang, EARTH Study Team

Open access · goldAbstract read
In one paragraph

Article in Environment international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.2field-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

40 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
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  4. Dynamic Associations between Ambient PMEnvironment & health (Washington, D.C.) · 2026
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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

9 authors at 3 institutions in 1 country.

Audrey J GaskinsDepartment of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, United States. Electronic address: audrey.jane.gaskins@emory.edu.
Ziyin TangDepartment of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, United States.
Robert B HoodDepartment of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, United States.
Jennifer FordDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
Joel D SchwartzDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, United States.
Dean P JonesDivision of Pulmonary, Allergy, & Critical Care Medicine, Emory University School of Medicine, Atlanta, GA, United States.
Francine LadenDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Channing Division of Network Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, United States.
Donghai LiangDepartment of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, United States.
EARTH Study Team
Emory University · USHarvard University · USBrigham and Women's Hospital · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI JAIME ELIZABETH HART · 1985 to 2026
$44.6M
Pilot Project ProgramP30ES019776 · NIEHS · EMORY UNIVERSITY · PI William Michael Caudle · 2013 to 2026
$22.6M
PCBs, Phthalates and Male Reproductive HealthR01ES009718 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI HAUSER, RUSS B · 1999 to 2018
$11.6M
Graduate and Postdoctoral Training in ToxicologyT32ES012870 · NIEHS · EMORY UNIVERSITY · PI Carmen Joseph Marsit · 2004 to 2026
$9.1M
Maternal and Paternal Flame Retardant Exposure, Impact on Fertility and PregnancyR01ES022955 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI HAUSER, RUSS B, MEEKER, JOHN D. · 2014 to 2018
$2.9M
Maternal Exposure to Air Pollution and Early Pregnancy OutcomesR00ES026648 · NIEHS · EMORY UNIVERSITY · PI GASKINS, AUDREY JANE · 2019 to 2021
$730k
Maternal Exposure to Air Pollution and Early Pregnancy OutcomesK99ES026648 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI GASKINS, AUDREY JANE · 2017 to 2018
$246k
NIEHS NIH HHS K99 ES026648NIEHS NIH HHS P30 ES000002NIEHS NIH HHS P30 ES019776NIEHS NIH HHS R00 ES026648NIEHS NIH HHS R01 ES009718NIEHS NIH HHS R01 ES022955NIEHS NIH HHS T32 ES012870
6 · The paper itself

Abstract

backgroundAir pollution exposure has been linked with diminished fertility. Identifying the metabolic changes induced by periconception air pollution exposure among women could enhance our understanding of the potential biological pathways underlying air pollution's reproductive toxicity.

objectiveTo identify serum metabolites associated with periconception air pollution exposure and evaluate the extent to which these metabolites mediate the association between air pollution and live birth.

methodsWe included 200 women undergoing a fresh assisted reproductive technology (ART) cycle at Massachusetts General Hospital Fertility Center (2005-2015). A serum sample was collected during stimulation, and untargeted metabolic profiling was conducted using liquid chromatography with ultra-high-resolution mass spectrometry. Exposure to nitrogen dioxide (NO

resultsFrom the C18 and HILIC chromatography columns, 10,803 and 12,968 metabolic features were extracted. There were 190 metabolic features and 18 pathways that were significantly associated with both air pollution and live birth (P < 0.05) across chromatography columns. Eight features were confirmed metabolites implicated in amino acid and nutrient metabolism with downstream effects on oxidative stress and inflammation. Six confirmed metabolites fell into two intuitive clusters - "antioxidants" and "oxidants"- which could potentially mediate some of the association between air pollution and lower odds of live birth. Tryptophan and vitamin B3 metabolism were common pathways linking air pollution exposure to decreased probability of live birth.

conclusionHigher periconception air pollution exposure was associated with metabolites and biologic pathways involved in inflammation and oxidative stress that may mediate the observed associations with lower probability of live birth following ART.

Indexed as

Air PollutantsAir PollutionBiomarkersEnvironmental ExposureFemaleHumansParticulate MatterReproductionAir PollutantsBiomarkersParticulate MatterAir pollutionAssisted reproductionFertilityIn vitro fertilizationLive birthMetabolomics

Identifiers

PMID34116378
PMCPMC8292230
OpenAlexW3168514486

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.