Bisphenol A interferes with synaptic remodeling.

Bisphenol A interferes with synaptic remodeling.
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DOI:
10.1016/j.yfrne.2010.06.004
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发表时间:
2010-10
影响因子:
7.4
通讯作者:
Leranth, Csaba
Leranth, Csaba
中科院分区:
医学1区
文献类型:
--
作者:
Hajszan, Tibor;Leranth, Csaba

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双酚A(BPA)是一种人工合成的异种雌激素,其潜在的副作用一直备受争议。尽管标准的毒理学测试没有显示出有害的影响,但最近的研究强调了到目前为止所遗漏的:双酚A诱导的神经系统变化。自2004年以来,我们的实验室一直在研究双酚A的核心作用之一,即干扰性腺类固醇诱导的突触发生,并由此导致脊柱突触的丢失。我们在大鼠和非人灵长类动物身上都表明,BPA完全抵消了雌激素和雄激素诱导的海马区和前额棘突触数的~70%-100%的增加。这种程度的突触丢失可能会产生严重的后果,可能会导致认知能力下降、抑郁和精神分裂症,特别是那些我们的实验室已经证明与突触丢失有关的疾病。最后,我们讨论了为什么儿童可能特别容易受到双酚A的影响,这代表了我们实验室未来的研究方向。
The potential adverse effects of Bisphenol A (BPA), a synthetic xenoestrogen, have long been debated. Although standard toxicology tests have revealed no harmful effects, recent research highlighted what was missed so far: BPA-induced alterations in the nervous system. Since 2004, our laboratory has been investigating one of the central effects of BPA, which is interference with gonadal steroid-induced synaptogenesis and the resulting loss of spine synapses. We have shown in both rats and nonhuman primates that BPA completely negates the ~70–100% increase in the number of hippocampal and prefrontal spine synapses induced by both estrogens and androgens. Synaptic loss of this magnitude may have significant consequences, potentially causing cognitive decline, depression, and schizophrenia, to mention those that our laboratory has shown to be associated with synaptic loss. Finally, we discuss why children may particularly be vulnerable to BPA, which represents future direction of research in our laboratory.
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