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Publication Detail

Title: Childhood polybrominated diphenyl ether (PBDE) exposure and executive function in children in the HOME Study.

Authors: Vuong, Ann M; Yolton, Kimberly; Poston, Kendra L; Xie, Changchun; Webster, Glenys M; Sjödin, Andreas; Braun, Joseph M; Dietrich, Kim N; Lanphear, Bruce P; Chen, Aimin

Published In Int J Hyg Environ Health, (2018 01)

Abstract: Prenatal exposure to polybrominated diphenyl ethers (PBDEs) have been reported to impair executive function in children, but little is known whether childhood PBDE exposures play a role. Using the Health Outcomes and Measures of the Environment (HOME) Study, a prospective birth cohort in the greater Cincinnati area, we investigated the association between repeated measures of PBDEs during childhood and executive function at 8 years in 208 children and whether effect modification by child sex was present. We used child serum collected at 1, 2, 3, 5, and 8 years to measure PBDEs. The Behavior Rating Inventory of Executive Function was completed by parents to assess executive function at 8 years. We used multiple informant models to examine childhood PBDEs during several exposure windows. Null associations were observed between early childhood PBDEs and executive function. However, we observed significant adverse associations between a 10-fold increase in concurrent concentrations of BDE-28 (β=4.6, 95% CI 0.5, 8.7) and BDE-153 (β=4.8, 95% CI 0.8, 8.8) with behavioral regulation. In addition, PBDEs at 8 years were significantly associated with poorer emotional and impulse control. No associations were noted between childhood PBDEs and metacognition or global executive function. However, child sex significantly modified the associations, with significantly poorer executive function among males with higher concurrent BDE-153, and null associations in females. Our study findings suggest that concurrent PBDE exposures during childhood may be associated with poorer executive function, specifically behavior regulation. Males may also be more sensitive to adverse associations of concurrent PBDEs on executive function.

PubMed ID: 29055520 Exiting the NIEHS site

MeSH Terms: Child; Child Behavior/drug effects; Executive Function/drug effects*; Female; Halogenated Diphenyl Ethers/toxicity*; Humans; Male; Sex Characteristics

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