表观遗传学
表观基因组
内分泌系统
DNA甲基化
二羟基化合物
组蛋白
生物
双酚A
激素
遗传学
内分泌学
基因
化学
基因表达
环氧树脂
有机化学
作者
Chinonye Doris Onuzulu,Oluwakemi A. Rotimi,Solomon O. Rotimi
出处
期刊:Reviews on environmental health
[De Gruyter]
日期:2019-05-04
卷期号:34 (4): 309-325
被引量:31
标识
DOI:10.1515/reveh-2018-0059
摘要
Abstract Endocrine disrupting chemicals (EDCs) are xenobiotics which adversely modify the hormone system. The endocrine system is most vulnerable to assaults by endocrine disruptors during the prenatal and early development window, and effects may persist into adulthood and across generations. The prenatal stage is a period of vulnerability to environmental chemicals because the epigenome is usually reprogrammed during this period. Bisphenol A (BPA), lead (Pb), and dichlorodiphenyltrichloroethane (DDT) were chosen for critical review because they have become serious public health concerns globally, especially in Africa where they are widely used without any regulation. In this review, we introduce EDCs and describe the various modes of action of EDCs and the importance of the prenatal and developmental windows to EDC exposure. We give a brief overview of epigenetics and describe the various epigenetic mechanisms: DNA methylation, histone modifications and non-coding RNAs, and how each of them affects gene expression. We then summarize findings from previous studies on the effects of prenatal exposure to the endocrine disruptors BPA, Pb and DDT on each of the previously described epigenetic mechanisms. We also discuss how the epigenetic alterations caused by these EDCs may be related to disease processes.
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