Evidence map›Paper›PMID 26381693›Full record

ArticleEnvironmental research2015

Manganese in teeth and neurodevelopment in young Mexican-American children.

Robert B Gunier, Manish Arora, Michael Jerrett, Asa Bradman, Kim G Harley, Ana Maria Mora, Katherine Kogut, Alan Hubbard, Christine Austin, Nina Holland and 1 more

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 2 pooled it
4.4field-weighted citation impact, top 6% 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

53 citing papers in PubMed, 2 syntheses or guidelines pooled it, 100 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Arsenic, mercury, manganese, and lead exposure in Mexican adults aged 50 and older.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
    Article
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  13. Lead exposure across the life course and age at death.The Science of the total environment · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Consequences of Disturbing Manganese Homeostasis.International journal of molecular sciences · 2023
    Review
  19. Article
  20. 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

11 authors at 4 institutions in 3 countries.

Robert B GunierCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Manish AroraExposure Biology, Lautenberg Environmental Health Sciences Laboratory, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA; Faculty of Dentistry, University of Sydney, 2 Chalmers Street, Surry Hills, Sydney, NSW 2010, Australia.
Michael JerrettCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Asa BradmanCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Kim G HarleyCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Ana Maria MoraCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA; Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, P.O. Box 86-3000, Heredia, Costa Rica.
Katherine KogutCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Alan HubbardCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Christine AustinExposure Biology, Lautenberg Environmental Health Sciences Laboratory, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA; Faculty of Dentistry, University of Sydney, 2 Chalmers Street, Surry Hills, Sydney, NSW 2010, Australia.
Nina HollandCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA.
Brenda EskenaziCenter for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, 1995 University Avenue, Suite 265, Berkeley, CA 94707, USA. Electronic address: eskenazi@berkeley.edu.
Center for Environmental Health · USIcahn School of Medicine at Mount Sinai · USUniversidad Nacional · CRUniversity of Sydney · AU

Funding

Project C: Epigenetic Effects of DDT/E and PBDEs on PubertyP01ES009605 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ESKENAZI, BRENDA · 1999 to 2015
$11.2M
Reconstructing fetal toxicant exposure and homeostatic disruptionsDP2ES025453 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ARORA, MANISH · 2014 to 2019
$2.6M
Early Life Environmental Toxicant Exposure and Oral HealthR00ES019597 · NIEHS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ARORA, MANISH · 2013 to 2015
$747k
NIEHS NIH HHS DP2 ES025453NIEHS NIH HHS P01 ES009605NIEHS NIH HHS P01ES009605NIEHS NIH HHS R00 ES019597
6 · The paper itself

Abstract

introductionManganese (Mn) is an essential nutrient but higher exposure has been associated with poorer neurodevelopment in children.

methodsWe measured Mn levels in prenatal (Mnpre) (n=197) and postnatal (Mnpost) dentin (n=193) from children's shed teeth using laser ablation inductively coupled plasma mass spectroscopy and examined the relationship with children's scores on the Mental Development Index (MDI) and Psychomotor Development Index (PDI) on the Bayley Scales of Infant Development at 6, 12, and 24-months. We explored non-linear associations and interactions by sex, blood lead concentrations and maternal iron status during pregnancy.

resultsA two-fold increase of Mnpost levels in dentin was associated with small decreases in MDI at 6-months and 12-months of age. We also observed a non-linear relationship between Mnpost levels and PDI at 6-months. We found effect modification by sex for Mnpost levels and neurodevelopment at 6-months with stronger effects among girls for both MDI (-1.5 points; 95% Confidence Interval (CI): -2.4, -0.6) and PDI (-1.8 points; 95% CI: -3.3, -0.3). Girls whose mothers had lower hemoglobin levels experienced larger decreases in MDI and PDI associated with Mnpre levels than girls whose mothers had higher hemoglobin levels (pinteraction=0.007 and 0.09, respectively). We did not observe interactions with blood lead concentrations or any relationships with neurodevelopment at 24-months.

conclusionsUsing Mn measurements in tooth dentin, a novel biomarker that provides prenatal and early postnatal levels, we observed negative transient associations between postnatal Mn levels and early neurodevelopment with effect modification by sex and interactions with prenatal hemoglobin.

Indexed as

AdolescentAdultChild DevelopmentFemaleHumansInfantManganeseMexican AmericansMiddle AgedNervous SystemToothYoung AdultManganeseBayley Scales of Infant DevelopmentManganeseNeurodevelopmentPesticides

Identifiers

PMID26381693
PMCPMC4696558
OpenAlexW2190087444

What OpenQuestion holds

Textmetadata
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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.