Evidence map›Paper›PMID 31678726›Full record

ArticleEnvironmental research2019

Exposure to 17 trace metals in pregnancy and associations with urinary oxidative stress biomarkers.

Stephani S Kim, John D Meeker, Alexander P Keil, Max T Aung, Paige A Bommarito, David E Cantonwine, Thomas F McElrath, Kelly K Ferguson

Open access · hybridAbstract read
In one paragraph

Article in Environmental research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 70 citations in OpenAlex.

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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

8 authors at 4 institutions in 1 country.

Stephani S KimEpidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
John D MeekerEnvironmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
Alexander P KeilEpidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA; Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
Max T AungEnvironmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
Paige A BommaritoDepartment of Environmental Science and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
David E CantonwineDivision of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Thomas F McElrathDivision of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Kelly K FergusonEpidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA. Electronic address: kelly.ferguson2@nih.gov.
National Institute of Environmental Health Sciences · USHarvard University · USUniversity of Michigan–Ann Arbor · USUniversity of North Carolina at Chapel Hill · US

Funding

Statistical Services and Methods Development ResourceU2CES026555 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI TEITELBAUM, SUSAN L · 2015 to 2025
$26.4M
Untargeted Analysis ResourceU2CES026553 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MEEKER, JOHN D. · 2015 to 2015
$9.5M
LIFECODES pregnancy cohortZIAES103321 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FERGUSON, KELLY · 2016 to 2025
$6.1M
Environmental PAH exposure and preeclampsia risk: Investigation of PE subtypes and the role of inflammation and oxidative stress.R01ES031591 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI John D. Meeker · 2021 to 2026
$3.9M
Bisphenol A and Phthalate Exposure in Relation to Fetal Growth and Preterm BirthR01ES018872 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MEEKER, JOHN D. · 2010 to 2014
$2.6M
Intramural NIH HHS ZIA ES103321NIEHS NIH HHS R01 ES018872NIEHS NIH HHS R01 ES031591NIEHS NIH HHS U2C ES026553NIEHS NIH HHS U2C ES026555
6 · The paper itself

Abstract

backgroundExposure to some toxic metals, such as lead and cadmium, has been associated with increased oxidative stress. However less is known about other metals and metal mixtures, especially in pregnant women who are a vulnerable population.

methodsTo study the relationship between exposure to trace metals and oxidative stress, we analyzed a panel of 17 metals and two oxidative stress biomarkers (8-isoprostane and 8-hydroxydeoxyguanosine [8-OHdG]) in urine samples collected at ~26 weeks gestation from pregnant women in Boston (n = 380). We used linear regression models to calculate percent differences and 95% confidence intervals (CI) in oxidative stress markers for an interquartile range (IQR) increase in each urinary metal with adjustment for other metals. In addition, we applied principal components analysis (PCA) and Bayesian kernel machine regression (BKMR), to examine cumulative effects (within correlated groups of exposures as well as overall) and interactions.

resultsWe estimated 109% (95% CI: 47, 198) higher 8-isoprostane and 71% (95% CI: 45, 102) higher 8-OHdG with an IQR increase in urinary selenium (Se). We also estimated higher 8-isoprostane (47%, 95% CI: 20.5, 79.4) and 8-OHdG (15.3%, 95% CI: 5.09, 26.5) in association with urinary copper (Cu). In our PCA, we observed higher 8-isoprostane levels in association with the "essential" PC (highly loaded by Cu, Se, and Zinc). In BKMR analyses, we also estimated higher levels of both oxidative stress biomarkers with increasing Se and Cu as well as increasing levels of both oxidative stress biomarkers in association with cumulative concentrations of urinary trace metals.

conclusionWe observed higher 8-isoprostane and 8-OHdG levels in association with urinary trace metals and elements, particularly Se and Cu, in linear models and using mixtures approaches. Additionally, increasing cumulative exposure to urinary trace metals was associated with higher levels of both oxidative stress biomarkers. The beneficial effects of these compounds should be carefully questioned.

Indexed as

Bayes TheoremBiomarkersBostonEnvironmental PollutantsFemaleHumansInfant, NewbornMaternal ExposureMetalsOxidative StressPregnancyBiomarkersEnvironmental PollutantsMetalsMetalsMixturesOxidative stressPrenatal exposure

Identifiers

PMID31678726
PMCPMC6907890
OpenAlexW2981890904

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.