Cited by 49Mercury impact and mitigation studiesAutism Spectrum Disorder ResearchHeavy Metal Exposure and Toxicity

Autism spectrum disorder phenotypes and prenatal exposure to methylmercury

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van Wijngaarden, Edwin, Davidson, Philip W., Smith, Tristram H., Evans, Katie, Yost, Kelley, Love, Tanzy, Thurston, Sally W., Watson, Gene E. +4 more·2013·Epidemiology

Abstract

BACKGROUND: There continues to be public concern that mercury exposure and autism spectrum disorder (ASD) may be associated. The primary source of exposure to organic mercury in humans is to methylmercury from fish consumption. We evaluated the association between prenatal methylmercury exposure and ASD phenotype in children and adolescents in the Republic of Seychelles, where fish consumption is high. METHODS: We administered the Social Communication Questionnaire to parents of a cohort of 1784 children, adolescents, and young adults. The Social Responsiveness Scale was administered to teachers of 537 cohort subjects at about 10 years of age. Prenatal exposure to methylmercury was measured in maternal hair samples collected at or near the time of birth. Multivariable regression models evaluated the relationship between prenatal methylmercury exposure and ASD phenotypic scores, adjusting for relevant covariates. RESULTS: The mean prenatal methylmercury exposure for subjects in the analysis was 8.4 ppm (standard deviation [SD] = 5.7). The mean Social Communication Questionnaire score was 8.0 (SD = 4.4). The mean prenatal methylmercury exposure for subjects with Social Responsiveness Scale scores was 6.7 ppm (SD = 4.4) and the mean Social Responsiveness Scale score was 57.6 (SD = 26.8). No consistent association between prenatal methylmercury exposure and ASD screening instrument was found, using linear and nonlinear regression analyses. CONCLUSIONS: Prenatal exposure to methylmercury was not associated with ASD phenotypic behaviors in our cohort of high fish consumers. Our findings contribute to the growing literature suggesting that exposure to methylmercury does not play an important role in the development of ASD phenotypic behavior.

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  1. [10]Institute of Medicine Immunization satefy review: Vaccines and autism Immunization Safety Review Committee BoHPaDP, Institute of Medicine of the National Academies 2004 Washington, DC The National Academies Press

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Authors
van Wijngaarden, E., Davidson, P. W., Smith, T. H., Evans, K., Yost, K., Love, T., Thurston, S. W., Watson, G. E., Zareba, G., Burns, C. M., Shamlaye, C. F., & Myers, G. J.
Affiliations
  • University of Rochester Medicine (US)
  • Ministry of Health (SC)
Venue
Epidemiology
Published
2013-09
Volume
24
Issue
5
Pages
651-659
ISSN
1044-3983 (ISSN-L)
OpenAlex
W1984688292
Cited by
49
References
41
Citations by year
2026: 4 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 5 · 2020: 3 · 2019: 4 · 2018: 4 · 2017: 5 · 2016: 8 · 2015: 4 · 2014: 5
FWCI
4.16
Type
journal article
Language
en
Open access
Locations
  • Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Environmental Health Sciences (R01ES010219, R21ES015487, P30 ES0 1247, R01 ES 08442, R21-ES-15487, R01ES008442, R01ES015578, T32ES007271, P30ES001247)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Mercury impact and mitigation studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
Keywords
autism spectrum disorder, prenatal methylmercury exposure, fish consumption, mercury, maternal hair mercury, Social Communication Questionnaire, Social Responsiveness Scale, autism phenotype, brain development
MeSH terms
Adolescent, Animals, Child, Child Development Disorders, Pervasive, Diet, Female, Fishes, Food Contamination, Humans, Longitudinal Studies, Male, Methylmercury Compounds, Phenotype, Pregnancy, Prenatal Exposure Delayed Effects, Surveys and Questionnaires, Seychelles

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