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Administration of bisphenol A to dams during perinatal period modifies molecular and morphological reproductive parameters of the offspring.

机译:在围产期向大坝施用双酚A会改变后代的分子和形态生殖参数。

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摘要

Bisphenol A (BPA) is an estrogenic agonist compound that induces changes in diverse reproductive parameters in rats. The aim of the present study was to determine the effects of BPA given in drinking water containing 10mg/L (approximate dose 1.2mg/kg BW/day), administered chronically to rats during pregnancy and lactation, on reproductive tract parameters of the offspring. 79.2% of the female offspring from BPA-treated mothers presented irregular estrous cycles. As compared to the control group, a significant increase in the thickness of the uterine epithelia and stroma was observed in the BPA group. Additionally, 60% of the female offspring from BPA mothers did not undergo abundant uterine epithelial apoptosis during the estrus phase of the cycle while control animals did. In addition, a down regulation of ERalpha expression was observed in epithelial cells on estrus day. The results indicate that BPA, when administered chronically in water beverages to dams, modifies the reproductive cycle of the offspring during young adulthood.
机译:双酚A(BPA)是一种雌激素激动剂,可诱导大鼠多种生殖参数发生变化。本研究的目的是确定在怀孕和哺乳期间长期给予大鼠的含10mg / L(约剂量1.2mg / kg BW /天)的饮用水中给予的BPA对后代生殖道参数的影响。 BPA治疗母亲的女性后代中有79.2%的发情周期不规则。与对照组相比,在BPA组中观察到子宫上皮和间质的厚度显着增加。此外,来自BPA母亲的雌性子代中有60%在周期的发情期未经历大量的子宫上皮细胞凋亡,而对照动物则如此。另外,在发情日在上皮细胞中观察到ERalpha表达的下调。结果表明,双酚A长期以水饮料形式应用于大坝时,会改变成年后代的繁殖周期。

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