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Abstract Title:

Pubertal BPA exposure changes central ERα levels in female mice.

Abstract Source:

Environ Toxicol Pharmacol. 2015 Aug 20 ;40(2):606-614. Epub 2015 Aug 20. PMID: 26361328

Abstract Author(s):

Cheng J Yu, Qian Q Fang, Fa D Tai

Article Affiliation:

Cheng J Yu

Abstract:

Despite many studies on the effects of perinatal Bisphenol A (BPA) exposure on the brain, its effects on brain estrogen receptor (ERα) expression during puberty remain unclear. Here, mice were injected subcutaneously with BPA (50μg/kg), estradiol (10μg 17β-E2/kg) or oil (0.05ml sesame oil) daily during puberty (postnatal days 23-30). Immunohistochemistry was used to examine changes in ERα immunoreactive neurons in differentbrain regions. Compared to control animals, pubertal exposure to BPA significantly increased ERα immunoreactive neurons in the bed nucleus of the stria terminalis (BST), arcuate hypothalamic nucleus (Arc), ventromedial hypothalamic nucleus (VMH) and medial amygdaloid nucleus (MeA) in females. E2 exposure during puberty also increased ERα immunoreactive neurons in the lateral septum (LS) of females. No effect was detected in males. These results indicate that the effects of estrogenic chemicals on ERα immunoreactive neurons are sex-dependent.

Study Type : Animal Study
Additional Links
Problem Substances : Bisphenol A : CK(685) : AC(178)

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Sayer Ji
Founder of GreenMedInfo.com

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