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自杀的表观遗传学:解释早期生活环境逆境的生物学效应。

The epigenetics of suicide: explaining the biological effects of early life environmental adversity.

机构信息

Douglas Hospital, Department of Psychiatry, McGill University, Montreal, Quebec, Canada.

出版信息

Arch Suicide Res. 2010;14(4):291-310. doi: 10.1080/13811118.2010.524025.

Abstract

A number of recent studies have shown epigenetic alterations associated with suicidal behavior. These epigenetic mechanisms, which alter gene expression via alternative mechanisms to the coding DNA sequence, result from environmental effects acting on the genome. Studies in rodents indicate that variation in the early environment will trigger these epigenetic modifications and recent human data suggest the same may be true in humans.The expression of a number of genes, which are involved in normal brain functions and that have been shown to be under epigenetic control, seem to be dysregulated in suicide. The present review briefly describes the main epigenetic mechanisms involved in the regulation of gene expression and discusses recent findings of epigenetic alterations in suicidal behavior.

摘要

最近的一些研究表明,自杀行为与表观遗传改变有关。这些表观遗传机制通过与编码 DNA 序列不同的机制改变基因表达,是由作用于基因组的环境因素引起的。啮齿动物的研究表明,早期环境的变化会引发这些表观遗传修饰,最近的人类数据表明,人类也可能如此。许多参与正常大脑功能的基因的表达似乎在自杀中失调,这些基因已经被证明受到表观遗传控制。本综述简要描述了参与基因表达调控的主要表观遗传机制,并讨论了自杀行为中表观遗传改变的最新发现。

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