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result sql = Changes in estrogen receptors alpha and beta expression in the brain of mice exposed prenatally to bisphenol A.
Changes in estrogen receptors alpha and beta expression in the brain of mice exposed prenatally to bisphenol A.
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result sql = The expression of ERs alpha and beta and serotonergic neurons were evaluated in the brains of mice prenatally exposed to Bisphenol A, a known endocrine disrupting chemical (EDc). Bisphenol A was administered orally at a dose of 2ng/g body weight on gestinational days 11-17 to pregnant ICR mice. Newborn male offspring (Bis-A mice) were evaluated for the immunoreactivity of ERs alpha and beta, serotonin, and serotonin transporter positive cells in the dorsal raphe nucleus (DRN). The serum testosterone level was also evaluated. In the Bis-A mice, the expression of ERs alpha and beta at 5 and 13 weeks was increased compared with the controls (P<0.04), but this difference disappeared by the 9th week. The serotonin, serotonin transporter, and testosterone level differences between two groups did not reach significance. Exposure to bisphenol A may have changed the expression of ERs in the brain, but did not directly affect serotonin neurons in the DRN.

Publication: Regul. Toxicol. Pharmacol. 2007 Mar ;47(2)::166-70.
Publication Date: 2007 Mar
Study Author(s): Kawai, Keisuke;Murakami, Shuji;Senba, Emiko;Yamanaka, Takeharu;Fujiwara, Yuya;Arimura, Chikako;Nozaki, Takehiro;Takii, Masato;Kubo, Chiharu;
Institution: Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University, Japan. [email protected]
Shortcut link to this study:
The expression of ERs alpha and beta and serotonergic neurons were evaluated in the brains of mice prenatally exposed to Bisphenol A, a known endocrine disrupting chemical (EDc). Bisphenol A was administered orally at a dose of 2ng/g body weight on gestinational days 11-17 to pregnant ICR mice. Newborn male offspring (Bis-A mice) were evaluated for the immunoreactivity of ERs alpha and beta, serotonin, and serotonin transporter positive cells in the dorsal raphe nucleus (DRN). The serum testosterone level was also evaluated. In the Bis-A mice, the expression of ERs alpha and beta at 5 and 13 weeks was increased compared with the controls (P<0.04), but this difference disappeared by the 9th week. The serotonin, serotonin transporter, and testosterone level differences between two groups did not reach significance. Exposure to bisphenol A may have changed the expression of ERs in the brain, but did not directly affect serotonin neurons in the DRN.
PMID: 17222491

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