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Dynamic epigenetic changes involved in testicular toxicity induced by di-2-(ethylhexyl) phthalate in mice. 2010

Shengde Wu, and Jing Zhu, and Yasha Li, and Tao Lin, and Liqiang Gan, and Xingang Yuan, and Jing Xiong, and Xing Liu, and Mingdeng Xu, and Dan Zhao, and Chao Ma, and Xuliang Li, and Guanghui Wei
Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing, China.

The aim of this study was to analyse epigenetic (specifically, DNA methylation) change in testes induced by maternal exposure to di-2-(ethylhexyl) phthalate (DEHP) in mice. Testicular dysgenesis syndrome was induced in foetuses by maternal exposure to DEHP. High-performance liquid chromatography was performed to analyse DNA methylation status, and expression levels of the DNA methyltransferases were examined by quantitative real-time polymerase chain reaction and western blotting. DEHP significantly had more than 10% relative increase in the global DNA methylation and also increased DNA methyltransferases' expression. Changes in DNA methylation may play an important role in abnormal testicular function caused by environmental factors such as maternal exposure to DEHP, which may be one possible mechanism of DEHP-mediated testicular toxicity.

UI MeSH Term Description Entries
D008297 Male Males
D010968 Plasticizers Materials incorporated mechanically in plastics (usually PVC) to increase flexibility, workability or distensibility; due to the non-chemical inclusion, plasticizers leach out from the plastic and are found in body fluids and the general environment. Plasticizer
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004051 Diethylhexyl Phthalate An ester of phthalic acid. It appears as a light-colored, odorless liquid and is used as a plasticizer for many resins and elastomers. Dioctyl Phthalate,Bis(2-ethylhexyl)phthalate,DEHP,Di(2-ethylhexyl)phthalate,Di-2-Ethylhexylphthalate,Di 2 Ethylhexylphthalate,Phthalate, Diethylhexyl,Phthalate, Dioctyl
D005260 Female Females
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D006059 Gonadal Dysgenesis A number of syndromes with defective gonadal developments such as streak GONADS and dysgenetic testes or ovaries. The spectrum of gonadal and sexual abnormalities is reflected in their varied sex chromosome (SEX CHROMOSOMES) constitution as shown by the karyotypes of 45,X monosomy (TURNER SYNDROME); 46,XX (GONADAL DYSGENESIS, 46XX); 46,XY (GONADAL DYSGENESIS, 46,XY); and sex chromosome MOSAICISM; (GONADAL DYSGENESIS, MIXED). Their phenotypes range from female, through ambiguous, to male. This concept includes gonadal agenesis. Gonadal Agenesis,Dysgenesis, Gonadal
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013737 Testis The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS. Testicles,Testes,Testicle

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