首页> 美国卫生研究院文献>Frontiers in Genetics >Do Copy Number Changes in CACNA2D2 CACNA2D3 and CACNA1D Constitute a Predisposing Risk Factor for Alzheimer’s Disease?
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Do Copy Number Changes in CACNA2D2 CACNA2D3 and CACNA1D Constitute a Predisposing Risk Factor for Alzheimer’s Disease?

机译:CACNA2D2CACNA2D3和CACNA1D中的拷贝数变化是否构成阿尔茨海默氏病的易感危险因素?

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摘要

Dysregulation of calcium (Ca2+) homeostasis is now being recognized to be a key step in the pathogenesis of Alzheimer’s disease (AD). Data from the literature, in particular the association between AD and polymorphism that interfere with Ca2+ homeostasis indicates the presence of genetic factors in this process; further, presenilins mutations, which are known to cause the familial form of AD, are involved in the regulation of intracellular Ca2+ stores. Here, we wish to draw attention to rare DNA copy number variations identified in two subjects with late-onset AD that led to partial or full duplication of genes that encode different subunits of the same type of voltage-gated Ca2+ channels; these duplications of voltage-gated Ca2+ channel genes is consistent with the critical role of calcium signaling in molecular processes underlying memory as has been demonstrated by several studies.
机译:钙(Ca 2 + )动态平衡的失调现已被认为是阿尔茨海默氏病(AD)发病机理中的关键步骤。来自文献的数据,特别是AD与干扰Ca 2 + 体内稳态的多态性之间的关联,表明该过程中存在遗传因素。此外,早衰素突变(已知会导致AD的家族形式)参与细胞内Ca 2 + 储存的调控。在这里,我们希望引起人们的注意,这是在两名患有晚期AD的受试者中发现的罕见DNA拷贝数变异,这些变异导致部分或完全重复的基因编码相同类型的电压门控Ca 2+的不同亚基。 / sup>频道;电压门控的Ca 2 + 通道基因的这些重复与钙信号在潜在的记忆分子过程中的关键作用是一致的,一些研究已经证明了这一点。

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