Effects of perfluorooctane sulfuric acid on placental PRL-family hormone production and fetal growth retardation in mice
- PMID: 25449418
- DOI: 10.1016/j.mce.2014.10.026
Effects of perfluorooctane sulfuric acid on placental PRL-family hormone production and fetal growth retardation in mice
Abstract
Perfluorooctane sulfuric acid (PFOS) is a persistent organic pollutant, causes fetal growth retardation but the mechanism is still unclear. This study focused on PFOS-induced toxicity such as placental trophoblast cell histopathological changes, endocrine function (i.e., prolactin (PRL)-family hormone production) and subsequent fetal growth retardation in mice. Maternal body weight gain, placental and fetal weights were significantly decreased in proportion to PFOS dosage. Placental efficiency (fetal weight/placental weight) was significantly reduced dose-dependently. Necrotic changes were observed in PFOS-treated placental tissues, and the area of injury increased dose-dependently. Finally, mRNA levels and maternal serum concentrations of the PRL-family hormones (mPL-II, mPLP-Cα, mPLP-K) were significantly reduced dose-dependently. In addition, the changing pattern between PRL-family hormone concentrations and fetal body weight was positively correlated. These results suggest that gestational PFOS treatment induces placental histopathological changes and disruption of endocrine function, finally may lead to fetal growth retardation in mice.
Keywords: Fetal growrh retardation; PFOS; Placenta; Placental lactogen; Prolactin-like protein.
Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.
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