能量是阿尔茨海默病的关键吗?

2022-01-10 brainnew神内神外 网络

阿德莱德大学(University of Adelaide)的一组研究人员发现,细胞为大脑功能产生能量的方式与阿尔茨海默病中发现的突变基因之间存在联系。

 

 

阿德莱德大学(University of Adelaide)的一组研究人员发现,细胞为大脑功能产生能量的方式与阿尔茨海默病中发现的突变基因之间存在联系。

 

 

阿德莱德大学2021年12月24日消息

 

发表在《疾病模式与机制》(Disease Models & Mechanisms)杂志上的这一发现,促使人们进一步研究这种联系,并将其视作为人类阿尔茨海默病基本的、早期的驱动因素

 

研究于2021年11月29日发表在《Disease Models & Mechanisms》(最新影响因子:5.758)杂志上

 

在这项研究中,研究人员分析了年轻成年斑马鱼(zebrafish)的大脑中与早发性阿尔茨海默病相关的基因突变。之所以选择斑马鱼作为研究对象,是因为它们的家族非常大,这使得通过它们更容易察觉微妙的影响。

 

研究组利用尖端的基因技术和数学分析,比较了基因活性,发现了正常鱼和突变鱼之间的细微差异。

 

虽然研究人员发现不同基因的不同突变会对脑细胞功能产生许多不同的影响,但他们也发现阿尔茨海默病的突变会影响一个非常重要的细胞功能,即在细胞内利用氧气产生能量

 

斑马鱼

 

来自阿德莱德大学阿尔茨海默病遗传学实验室的首席研究员 Karissa Barthelson 博士说:“这非常有趣,因为我们知道当阿尔茨海默病最终发展时,人们的大脑会变得严重缺乏能量。”

 

“当我们意识到这种共同的联系时,我们将我们的研究向前推进了一步,并重新分析了另一个研究小组的数据,该小组曾在小鼠中研究了一个重要的阿尔茨海默病基因。”

 

“我们可以看到类似的效果,这增强了我们的信心,我们发现了人类阿尔茨海默病的一个基本的、早期的驱动因素。”

 

 

大脑由许多不同类型的细胞组成,这些细胞具有复杂的产生和分享能量的方式。阿德莱德大学的研究小组现在想研究阿尔茨海默病突变如何影响这些不同的细胞类型。

 

“发现这一驱动阿尔茨海默病发展的重要常见早期因素,令人非常满意。”

 

研究人员表示,阿尔茨海默病给社会带来的代价是巨大的,不仅要照顾那些不能照顾自己的人,而且随着记忆和认知的消退,还会失去与亲人的关系。

 

能量产生是支持所有其他功能的最根本的重要细胞活动,尤其是在大脑等高度活跃的器官中,” Barthelson 博士说。

 

如果我们能够详细了解氧气的使用和能源生产出了什么问题,我们可能会在疾病开始之前找到阻止它的方法——这将极大地有利于我们的老龄人口。

 

创立于1874年的澳大利亚阿德莱德大学

参考文献

Source:University of Adelaide

Is Energy the Key to Alzheimer’s Disease?

Reference:

Karissa Barthelson, Morgan Newman, Michael Lardelli; Brain transcriptomes of zebrafish and mouse Alzheimer's disease knock-in models imply early disrupted energy metabolism. Dis Model Mech 2021; dmm.049187. doi: https://doi.org/10.1242/dmm.049187

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    2022-01-10 ms3000001281480633

    学习了

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