PMID- 15065649 OWN - NLM STAT- MEDLINE DCOM- 20041026 LR - 20190727 IS - 0040-8727 (Print) IS - 0040-8727 (Linking) VI - 202 IP - 3 DP - 2004 Mar TI - The Tohoku Study of Child Development: A cohort study of effects of perinatal exposures to methylmercury and environmentally persistent organic pollutants on neurobehavioral development in Japanese children. PG - 227-37 AB - Several birth cohort studies have shown adverse effects of perinatal exposures to methylmercury (MeHg) and environmentally persistent organic pollutants (POPs). These chemicals are ingested mainly through fish consumption, but little is known about the hazardous effects in Japanese, whose fish consumption is high. The present study, the Tohoku Study of Child Development, was designed to examine the effects of perinatal exposures to MeHg, polychlorinated biphenyls (PCB), dioxins, pesticides, and other chemicals in Japanese children. Six hundred eighty-seven pregnant women were participated in this study with their written informed consent. Maternal peripheral blood, cord blood, cord tissue, placenta, and breast milk samples were collected for chemical analysis. Maternal hair was also taken for MeHg analysis. Infants born at full term were assessed by neurobehavioral tests: the Brazelton Neonatal Behavioral Assessment Scale at three days old, the Kyoto Scale of Psychological Development and the Bayley Scales of Infant Development at 7 and 18 months old, and the Fagan Test of Infant Intelligence at 7 months old. The children will be continuously followed up to ages 6-7 years. Maternal food intake frequency, maternal IQ, socioeconomic status, and home environment were assessed as covariates. The results of this cohort study will allow us to evaluate associations between the neurobehavioral development of children and perinatal exposures to MeHg and environmentally POPs in Japan. FAU - Nakai, Kunihiko AU - Nakai K AD - Department of Environmental Health Sciences, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan. nakaik@mail.tains.tohoku.ac.jp FAU - Suzuki, Keita AU - Suzuki K FAU - Oka, Tomoko AU - Oka T FAU - Murata, Katsuyuki AU - Murata K FAU - Sakamoto, Mineshi AU - Sakamoto M FAU - Okamura, Kunihiro AU - Okamura K FAU - Hosokawa, Toru AU - Hosokawa T FAU - Sakai, Takeo AU - Sakai T FAU - Nakamura, Tomoyuki AU - Nakamura T FAU - Saito, Yoshinori AU - Saito Y FAU - Kurokawa, Naoyuki AU - Kurokawa N FAU - Kameo, Satomi AU - Kameo S FAU - Satoh, Hiroshi AU - Satoh H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Tohoku J Exp Med JT - The Tohoku journal of experimental medicine JID - 0417355 RN - 0 (Environmental Pollutants) RN - 0 (Methylmercury Compounds) SB - IM MH - Animals MH - *Child Development MH - Cohort Studies MH - Developmental Disabilities/*chemically induced MH - Diet MH - Environmental Pollutants/metabolism/*pharmacology/*toxicity MH - Female MH - Fishes MH - Humans MH - Infant MH - Japan MH - Methylmercury Compounds/metabolism/*pharmacology/*toxicity MH - Milk, Human/chemistry MH - Nervous System/*drug effects MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Psychomotor Performance MH - Surveys and Questionnaires EDAT- 2004/04/07 05:00 MHDA- 2004/10/27 09:00 CRDT- 2004/04/07 05:00 PHST- 2004/04/07 05:00 [pubmed] PHST- 2004/10/27 09:00 [medline] PHST- 2004/04/07 05:00 [entrez] AID - 10.1620/tjem.202.227 [doi] PST - ppublish SO - Tohoku J Exp Med. 2004 Mar;202(3):227-37. doi: 10.1620/tjem.202.227.