Evidence map›Paper›PMID 33154986›Full record

ArticleEnvironmental epidemiology (Philadelphia, Pa.)2020

Periconceptional and prenatal exposure to metal mixtures in relation to behavioral development at 3 years of age.

Brett T Doherty, Megan E Romano, Jiang Gui, Tracy Punshon, Brian P Jackson, Margaret R Karagas, Susan A Korrick

Open access · goldAbstract read
In one paragraph

Article in Environmental epidemiology (Philadelphia, Pa.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  15. Exposure to heavy metalsmedRxiv : the preprint server for health sciences · 2023
    Article
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  20. Scientific opinion on the tolerable upper intake level for selenium.EFSA journal. European Food Safety Authority · 2023
    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 2 institutions in 1 country.

Brett T DohertyDepartment of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
Megan E RomanoDepartment of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
Jiang GuiDepartment of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
Tracy PunshonDepartment of Biological Sciences, Dartmouth College, Hanover, New Hampshire.
Brian P JacksonDepartment of Earth Sciences, Dartmouth College, Hanover, New Hampshire.
Margaret R KaragasDepartment of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
Susan A KorrickChanning Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts.
Dartmouth College · USBrigham and Women's Hospital · US

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Fred W Kolling IV · 1985 to 2026
$91.3M
VARIATION IN BIOACCUMULATION AND BIOMAGNIFICATION OF METALS IN NORTHERN US LAKESP42ES007373 · NIEHS · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA · 1995 to 2019
$52.0M
Project 3: Placental Biomarkers of Exposure and Outcome (Marsit)P01ES022832 · NIEHS · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA · 2013 to 2018
$4.7M
Training Program for Quantitative Population Sciences in CancerR25CA134286 · NCI · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA, TOSTESON, TOR D · 2009 to 2018
$3.0M
NCI NIH HHS P30 CA023108NIEHS NIH HHS P01 ES022832NIEHS NIH HHS P42 ES007373
6 · The paper itself

Abstract

backgroundBehavioral effects of prenatal exposure to mixtures of essential and toxic metals are incompletely understood.

methodsWe investigated neurodevelopmental effects of prenatal metal exposures in the New Hampshire Birth Cohort Study, a prospective birth cohort. We measured metals (As, Cu, Mn, Pb, Se, Zn) in maternal prenatal and postnatal toenails and infant toenails, reflecting exposures during periconception and early pregnancy, mid pregnancy, and late pregnancy and early neonatal life, respectively. Mothers completed the Social Responsiveness Scale, 2nd ed. (SRS-2) and the Behavior Assessment System for Children, 2nd ed. (BASC-2) to assess their child's neurobehavior at 3 years. We used mean field variational Bayes for lagged kernel machine regression to investigate associations of toenail metal concentrations with SRS-2 Total Scores and BASC-2 composite scores (SRS-2: n = 371; BASC-2: n = 318).

resultsInfant toenail Mn was associated with poorer performance on multiple BASC-2 composite scores. Maternal postnatal toenail As was associated with worse scores on the BASC-2 Internalizing Problems and Behavioral Symptoms Index. Associations with Mn were generally stronger in males, and associations with As were generally stronger in females. Other metals, including Pb, were weakly or inconsistently associated with BASC-2 outcomes, and there were no strong associations of individual metals and SRS-2 Total Scores. We observed suggestive evidence of interaction between As and Se for SRS-2 Total Scores and BASC-2 Adaptive Skills, though overall evidence of interactions between metals was weak.

conclusionOur results support the hypothesis that exposure to Mn and As in mid to late pregnancy may be neurodevelopmentally harmful.

Indexed as

BehaviorCritical windowsMetalsMixturesNeurodevelopmentPrenatal exposures

Identifiers

PMID33154986
PMCPMC7595192
OpenAlexW3040926999

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.