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Publication Detail

Title: Prenatal polybrominated diphenyl ether and perfluoroalkyl substance exposures and executive function in school-age children.

Authors: Vuong, Ann M; Yolton, Kimberly; Webster, Glenys M; Sjödin, Andreas; Calafat, Antonia M; Braun, Joseph M; Dietrich, Kim N; Lanphear, Bruce P; Chen, Aimin

Published In Environ Res, (2016 May)

Abstract: Executive function is a critical behavioral trait rarely studied in relation to potential neurotoxicants. Prenatal exposure to polybrominated diphenyl ethers (PBDEs) and perfluoroalkyl substances (PFASs) has been associated with adverse neurodevelopment, but there is limited research on executive function. Data from 256 mother-child pairs in the Health Outcomes and Measures of the Environment Study, a prospective birth cohort (2003-2006, Cincinnati, OH), was used to examine maternal serum PBDEs and PFASs and executive function in children ages 5 and 8 years. Maternal serum PBDEs and PFASs were measured at 16±3 weeks gestation. Executive function was assessed with the parent-rated Behavior Rating Inventory of Executive Function (BRIEF), which yields composite measures: behavioral regulation index, metacognition index, and global executive composite. Higher BRIEF scores indicate executive function impairments. Linear mixed models and generalized estimating equations were used to estimate covariate-adjusted associations between PBDEs and PFASs and executive function. A 10-fold increase in BDE-153 was associated with poorer behavior regulation (β=3.23, 95% CI 0.60, 5.86). Higher odds of having a score ≥60 in behavior regulation (OR=3.92, 95% CI 1.76, 8.73) or global executive functioning (OR=2.34, 95% CI 1.05, 5.23) was observed with increased BDE-153. Each ln-unit increase in perfluorooctane sulfonate (PFOS) was associated with poorer behavior regulation (β=3.14, 95% CI 0.68, 5.61), metacognition (β=3.10, 95% CI 0.62, 5.58), and global executive functioning (β=3.38, 95% CI 0.86, 5.90). However, no association was observed between perfluorooctanoate (PFOA) and executive function. Prenatal exposures to BDE-153 and PFOS may be associated with executive function deficits in school-age children.

PubMed ID: 26832761 Exiting the NIEHS site

MeSH Terms: Adult; Child; Child, Preschool; Executive Function/drug effects*; Female; Fluorocarbons/toxicity*; Halogenated Diphenyl Ethers/toxicity*; Humans; Male; Pregnancy; Prenatal Exposure Delayed Effects*; Prospective Studies; Sex Factors; Young Adult

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