Long-lasting and transgenerational effects of an environmental enrichment on memory formation.

Long-lasting and transgenerational effects of an environmental enrichment on memory formation.
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DOI:
10.1016/j.brainresbull.2010.11.003
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发表时间:
2011-04-25
影响因子:
3.8
通讯作者:
Feig LA
Feig LA
中科院分区:
医学3区
文献类型:
--
作者:
Arai JA;Feig LA

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长期以来,人们一直认为,基因决定的,但不是环境获得的,表型可以遗传。然而,最近的大量研究表明,从动物环境中获得的表型可以遗传给下一代。此外,流行病学研究表明,类似的现象也发生在人类身上。这种类型的遗传不涉及改变DNA序列的基因突变。相反,人们认为染色质的表观遗传变化,如DNA甲基化和组蛋白修饰,发生。在这篇综述中,我们将集中在一个令人兴奋的新的例子,这种现象,跨代传递增强突触可塑性和记忆形成诱导暴露于一个“丰富”的环境。
It has long been believed that genetically-determined, but not environmentally-acquired, phenotypes can be inherited. However, a large number of recent studies have reported that phenotypes acquired from an animal’s environment can be transmitted to the next generation. Moreover, epidemiology studies have hinted that a similar phenomenon occurs in humans. This type of inheritance does not involve gene mutations that change DNA sequence. Instead, it is thought that epigenetic changes in chromatin, such as DNA methylation and histone modification, occur. In this review, we will focus on one exciting new example of this phenomenon, transfer across generations of enhanced synaptic plasticity and memory formation induced by exposure to an “enriched” environment.
Dnmt1 和 Dnmt3a 维持 DNA 甲基化并调节成人前脑神经元的突触功能
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