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Abstract Title:

The effects of pubertal exposure to bisphenol-A on social behavior in male mice.

Abstract Source:

Chemosphere. 2019 Nov 27 ;244:125494. Epub 2019 Nov 27. PMID: 31812767

Abstract Author(s):

Tongtong Gao, Zhangxin Yin, Muye Wang, Zhaoqing Fang, Xiaoyu Zhong, Jishui Li, Yizhong Hu, Donghong Wu, Kesheng Jiang, Xiaohong Xu

Article Affiliation:

Tongtong Gao

Abstract:

Puberty is a crucial developmental period for structural modifications of brain and activation of the neural circuits underlying sex differences in social behavior. It is possible that pubertal exposure to bisphenol-A (BPA), a common EED with a weak estrogenic activity, influences social behavior. After being exposed to BPA at 0.04, 0.4, 4 mg kgfor 18 days, the 7-week-old male mice were tested with social play and three-chamber. The results showed that pubertal BPA exposure decreased social play between adolescent males and sociability of adolescent males. Further, pubertal BPA exposure reduced sociability and inhibited social novel preferences of adult males. BPA inhibited social interactions with opposite sex but improved socio-sexual exploration and the low-intensity mating behavior (mounting) with same sex in adult males. In residential-intruder test, BPA-exposed adult males showed a decrease in aggressiveness and an enhancement in prosocial behavior with intruder. Western blot analysis showed that BPA (especially at 4 mg/kg/d) down-regulated the levels of AR in the amygdala and the striatum but up-regulated the levels of DR1 and DAT proteins in the striatum of adult males. BPA at 4 mg kgdecreased the levels of T in the serum and the brain. These results suggest that pubertal BPA exposure affects social play and sociability of adolescent males and even results in long-term effects on social behavior of adult males. BPA-induced down-regulations of the levels of AR in the amygdala and the striatum and up-regulation of the levels of DR1 and DAT in the striatum may be involved.

Study Type : Animal Study
Additional Links
Adverse Pharmacological Actions : Neurotoxic : CK(1458) : AC(0)

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