Regulation of arcuate genes by developmental exposures to endocrine-disrupting compounds in female rats

Troy A. Roepke, Jennifer A. Yang, Ali Yasrebi, Kyle J. Mamounis, Elif Oruc, Aparna Mahakali Zama, Mehmet Uzumcu

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Developmental exposure to endocrine-disrupting compounds (EDCs) alters reproduction and energy homeostasis, both of which are regulated by the arcuate nucleus (ARC). Little is known about the effects of EDC on ARC gene expression. In Experiment #1, pregnant dams were treated with either two doses of bisphenol A (BPA) or oil from embryonic day (E)18-21. Neonates were injected from postnatal day (PND)0-7. Vaginal opening, body weights, and ARC gene expression were measured. Chrm3 (muscarinic receptor 3) and Adipor1 (adiponectin receptor 1) were decreased by BPA. Bdnf (brain-derived neurotropic factor), Igf1 (insulin-like growth factor 1), Htr2c (5-hydroxytryptamine receptor), and Cck2r (cholescystokinin 2 receptor) were impacted. In Experiment #2, females were exposed to BPA, diethylstilbestrol (DES), di(2-ethylhexyl)phthalate, or methoxychlor (MXC) during E11-PND7. MXC and DES advanced the age of vaginal opening and ARC gene expression was impacted. These data indicate that EDCs alter ARC genes involved in reproduction and energy homeostasis in females.

Original languageEnglish (US)
Pages (from-to)18-26
Number of pages9
JournalReproductive Toxicology
Volume62
DOIs
StatePublished - Jul 1 2016

All Science Journal Classification (ASJC) codes

  • Toxicology

Keywords

  • Arcuate nucleus
  • Bisphenol a
  • Diethylstilbestrol
  • Endocrine-disrupting compounds
  • Energy homeostasis
  • Methoxychlor
  • Phthalates
  • Puberty

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