Methylmercury exposure and developmental outcomes in Tohoku study of child development at 18 months of age

Nozomi Tatsuta, Kunihiko Nakai, Mineshi Sakamoto, Katsuyuki Murata, Hiroshi Satoh

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Seafood is an important component in a healthy diet and may contain methylmercury or other contaminants. It is important to recognize the risks and benefits of consuming seafood. A longitudinal prospective birth cohort study has been conducted to clarify the effects of neurotoxicants on child development-the Tohoku Study of Child Development (TSCD) in Japan. TSCD comprises two cohorts; a polychlorinated biphenyls (PCB) cohort (urban area) and a methylmercury cohort (coastal area). Our previous results from the coastal area showed prenatal methylmercury exposure affected psychomotor development in 18-month-olds, and boys appear to be more vulnerable to the exposure than girls. In this report, we have added the urban area cohort and we reanalyzed the impact of prenatal exposure to methylmercury, which gave the same results as before. These findings suggest prenatal exposure to low levels methylmercury may have adverse effects on child development, especially in boys.

Original languageEnglish
Article number49
JournalToxics
Volume6
Issue number3
DOIs
Publication statusPublished - 2018 Aug 21
Externally publishedYes

Keywords

  • Child development
  • Methylmercury
  • Prenatal exposure

ASJC Scopus subject areas

  • Toxicology
  • Health, Toxicology and Mutagenesis
  • Chemical Health and Safety

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