eLife:阿尔茨海默症的基因可能在20多岁时就表现出影响

2019-07-26 Violet MedSci原创

一项新的研究发现,当有阿尔茨海默症(AD)家族史的年轻人出现记忆衰退时,这可能是严重问题的早期征兆。 为了更好地掌握AD家族史对未来风险的影响,研究者对近60000名18至85岁的男女进行了一项在线单词记忆测试。首先展示12组两个词,之后,只随机显示一个单词,每个受试者被要求回忆起缺失的单词。这个过程重复三次。近5000名有家族史的参与者也提供了血液或唾液样本,测量样本中与AD风险相关的

一项新的研究发现,当有阿尔茨海默症(AD)家族史的年轻人出现记忆衰退时,这可能是严重问题的早期征兆。


为了更好地掌握AD家族史对未来风险的影响,研究者对近60000名18至85岁的男女进行了一项在线单词记忆测试。首先展示12组两个连词,之后,只随机显示一个单词,每个受试者被要求回忆起缺失的单词。这个过程重复三次。近5000名有家族史的参与者也提供了血液或唾液样本,测量样本中与阿尔茨海默病风险相关的特定蛋白质(载脂蛋白E)的水平。


研究结果显示,家族史和较低的记忆测试分数之间有着明显的联系。18岁至65岁之间有AD家庭成员的受试者的得分低于没有阿尔茨海默氏症家庭成员的受试者,这甚至包括20多岁的年轻人。


这项测试表明,年轻人的记忆力可能会受到遗传风险的影响,比典型的阿尔茨海默病发作早40年。


原始出处:Joshua S Talboom, et al. Family history of Alzheimer’s disease alters cognition and is modified by medical and genetic factors.eLife. 2019


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    2020-02-14 clmlylxy
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    2019-12-12 膀胱癌
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国家老龄化研究所(NIA)资助的一项研究表明,将遗传多样性纳入阿尔茨海默病的小鼠模型,这将会导致这种普遍的人类疾病的研究可以更全面,可以覆盖到遗传、分子和临床特征的研究,NIA是国家卫生研究所的一部分。