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Correlation between Prenatal Exposure to Polybrominated Diphenyl Ethers (PBDEs) and Infant Birth Outcomes: A Meta-Analysis and an Experimental Study

Department of Endocrinology and Metabolism, Institute of Endocrinology, The First Affiliated Hospital of China Medical University, Liaoning Provincial Key Laboratory of Endocrine Diseases, Shenyang 110001, China
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Academic Editor: Anthony R. Mawson
Int. J. Environ. Res. Public Health 2017, 14(3), 268; https://doi.org/10.3390/ijerph14030268
Received: 15 December 2016 / Revised: 17 February 2017 / Accepted: 28 February 2017 / Published: 7 March 2017
(This article belongs to the Section Environmental Health)
Only a few epidemiological studies have focused on the correlation between prenatal exposure to polybrominated diphenyl ethers (PBDEs) and infant birth outcomes (IBO), and the results of these epidemiological studies are contradictory. The objective of this study was to assess the correlation between prenatal exposure to PBDEs (PEP) and IBO (i.e., birth weight) in an analysis of epidemiological studies and an experimental animals study. We searched databases of the medical literature (PubMed, Excerpta Medica Database, Cochrane Library, and China National Knowledge Infrastructure) for articles and pooled the results of the included epidemiological studies. In parallel, birth outcomes (i.e., birth weights of pups) were collected from female Sprague-Dawley (SD) rats exposed to decabromodiphenyl ether (DecaBDE) in the diet from five weeks of age to delivery. A significant negative relationship was found between human PBDE burden and birth weight in the analysis of seven epidemiological studies based on a random-effects model (β = −50.598; 95% confidence interval (CI) −95.914, −5.282; I2 = 11.8%; p = 0.029). In the experimental animal study, a significant decrease in birth weight in the DecaBDE-treated group was also observed (5.26 ± 0.39 vs. 5.8 ± 0.58, p = 0.0132). The results of our study contribute to increasing evidence suggesting that PEP adversely impacts IBO, especially birth weight. View Full-Text
Keywords: polybrominated diphenyl ethers; birth outcomes; birth weight; head circumference polybrominated diphenyl ethers; birth outcomes; birth weight; head circumference
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Zhao, X.; Peng, S.; Xiang, Y.; Yang, Y.; Li, J.; Shan, Z.; Teng, W. Correlation between Prenatal Exposure to Polybrominated Diphenyl Ethers (PBDEs) and Infant Birth Outcomes: A Meta-Analysis and an Experimental Study. Int. J. Environ. Res. Public Health 2017, 14, 268.

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