他们没有研究一个或多个选定基因对寿命的影响,而是观察了整个基因组,以一种更为开放的方式回答了这个问题。该论文的第一作者保罗·蒂默尔斯来自爱丁堡大学,他说道,因为任一一个给定基因的影响很小,所以需要大量样本来确定与寿命相关的基因。
They confirmed six previously identified associations between genes and aging, such as the APOE gene, and they also discovered 21 new genomic regions that influence lifespan. Using their results to develop a polygenic risk score for lifespan, they developed a single, personalized genomic score that estimates a person's genetic likelihood of a longer life.
他们证实了先前已经确定的基因与年老之间存在的六个关联性,如APOE基因,他们还发现了21个影响生命周期的新的基因组区域。研究员利用研究结果开发了一个用于生命周期的多基因风险评分体系,这是一个单一的、个性化的基因组评分,可评估一个人长寿的遗传可能性。
"Using a person's genetic information alone, we can identify the 10 percent of people with the most protective genes, who will live an average of five years longer than the least protected 10 percent," said Timmers.
"只需一个人的遗传信息,我们就可以确定出10%具有最多保护基因的人群。平均而言,他们比10%最不受保护的人群多活5年。"
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