4.5 Review

Phthalate Exposures and Placental Health in Animal Models and Humans: A Systematic Review

期刊

TOXICOLOGICAL SCIENCES
卷 188, 期 2, 页码 153-179

出版社

OXFORD UNIV PRESS
DOI: 10.1093/toxsci/kfac060

关键词

phthalates; placenta; pregnancy; endocrine disruptors

资金

  1. National Institutes of Health [R01ES031285, T32ES007148, P30ES005022, R01ES029336]

向作者/读者索取更多资源

This comprehensive review examines the effects of phthalate exposures on various measures of placental health, including morphology, hormone production, vascularization, histopathology, and gene/protein expression. The review of 35 papers (24 human and 11 animal studies) reveals consistent changes in vascular and morphologic endpoints, suggesting potential implications for pregnancy complications and children's health. This review serves as an important resource for future research in this rapidly expanding field.
Phthalates are ubiquitous compounds known to leach from the plastic products that contain them. Due to their endocrine-disrupting properties, a wide range of studies have elucidated their effects on reproduction, metabolism, neurodevelopment, and growth. Additionally, their impacts during pregnancy and on the developing fetus have been extensively studied. Most recently, there has been interest in the impacts of phthalates on the placenta, a transient major endocrine organ critical to maintenance of the uterine environment and fetal development. Phthalate-induced changes in placental structure and function may have significant impacts on the course of pregnancy and ultimately, child health. Prior reviews have described the literature on phthalates and placental health; however to date, there has been no comprehensive, systematic review on this topic. Here, we review 35 papers (24 human and 11 animal studies) and summarize phthalate exposures in relation to an extensive set of placental measures. Phthalate-related alterations were reported for placental morphology, hormone production, vascularization, histopathology, and gene/protein expression. The most consistent changes were observed in vascular and morphologic endpoints, including cell composition. These changes have implications for pregnancy complications such as preterm birth and intrauterine growth restriction as well as potential ramifications for children's health. This comprehensive review of the literature, including common sources of bias, will inform the future work in this rapidly expanding field.

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