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Pediatr Res. 2011 Dec;70(6):596-600. doi: 10.1203/PDR.0b013e3182320b9b.

Levels of breast milk PBDEs from southern Taiwan and their potential impact on neurodevelopment.

Author information

1
Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, 912 Pingtung, Taiwan. hrchao@mail.npust.edu.tw

Abstract

In vivo studies have demonstrated that prenatal or neonatal exposure to polybrominated diphenyl ethers (PBDEs) causes developmental neurotoxicity. However, there is a lack of human data. Our hypothesis was that PBDEs would result in lower infant neurodevelopment scores. This is a post hoc analysis of previous studies. Fourteen PBDEs in 70 breast milk were analyzed using a high-resolution gas chromatograph/high-resolution mass spectrometer. Infant neurodevelopment at the age of 8-12 mo was determined using the Bayley Scales of Infants and Toddlers Development, third edition (Bayley-III). The median of Σ14 PBDEs (the sum of 14 PBDE congeners) was 2.92 ng/g lipid. The Σ14 PBDE concentrations were not correlated with Bayley-III scores on cognitive, language, motor, social-emotional, or adaptive behavior scales. A significantly inverse association between brominated diphenyl ether (BDE)-209 and the cognitive scale was found after multivariate stepwise linear regression analyses (B = -0.007, adjusted R = -0.224, p = 0.032). In contrast, the language scale was positively correlated with BDE-196 (B = 0.096, adjusted R = 0.315, p = 0.002). Our results are consistent with most in vivo studies, suggesting that prenatal or postnatal exposure to BDE-209 potentially delays the neurological development.

PMID:
21857391
DOI:
10.1203/PDR.0b013e3182320b9b
[Indexed for MEDLINE]

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