Age-dependent effects of APOE ε4 in preclinical Alzheimer's disease.

Age-dependent effects of APOE ε4 in preclinical Alzheimer's disease.
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DOI:
10.1002/acn3.333
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发表时间:
2016-09
影响因子:
5.3
通讯作者:
Yokoyama, Jennifer S.
Yokoyama, Jennifer S.
中科院分区:
医学2区
文献类型:
--
作者:
Bonham, Luke W.;Geier, Ethan G.;Fan, Chun C.;Leong, Josiah K.;Besser, Lilah;Kukull, Walter A.;Kornak, John;Andreassen, Ole A.;Schellenberg, Gerard D.;Rosen, Howard J.;Dillon, William P.;Hess, Christopher P.;Miller, Bruce L.;Dale, Anders M.;Desikan, Rahul S.;Yokoyama, Jennifer S.

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在回顾性研究中,载脂蛋白E (APOE)的ε4等位基因是已知的阿尔茨海默病(AD)最强的共同遗传危险因素,并改变发病年龄。在此,我们纵向测试APOE ε4基因型和年龄在正常认知向AD发展过程中的影响。使用来自5381名认知正常老年人的数据和Cox比例风险模型,我们纵向测试了APOE基因型对四个年龄层(<60岁、60 - 70岁、70-80岁、80岁以上)从正常认知到轻度认知障碍(MCI)或AD进展的影响,并采用滑动窗口法在60 - 85岁之间进行了测试。我们发现APOE ε4携带者的状态和剂量显著影响四个年龄组中MCI或AD的进展,APOE ε4相关的进展风险在70 - 75岁之间达到顶峰。我们证实了APOE ε4相关的进展风险在病理确诊的队列亚组中存在。我们的研究结果表明,在临床正常的个体中,APOE ε4状态显著预测老年期MCI或AD的进展,并且这种风险随年龄而变化。随着治疗干预措施的出现,以及临床决策可以根据年龄和遗传数据进行个性化调整,这些信息将是有用的。
The ε4 allele of apolipoprotein E (APOE) is the strongest known common genetic risk factor for Alzheimer's disease (AD) and alters age of onset in retrospective studies. Here, we longitudinally test the effects of APOE ε4 genotype and age during progression from normal cognition to AD. Using data from 5381 cognitively normal older individuals and Cox proportional hazards models, we longitudinally tested the effects of APOE genotype on progression from normal cognition to mild cognitive impairment (MCI) or AD in four age strata (<60, 60–70, 70–80, 80 + ) and with a sliding window approach between ages 60 and 85. We found that APOE ε4 carrier status and dosage significantly influenced progression to MCI or AD in all four age groups and that APOE ε4‐associated progression risk peaked between ages 70 and 75. We confirmed APOE ε4‐associated progression risk in a subset of the cohort with pathologically proven diagnoses. Our findings indicate that in clinically normal individuals, APOE ε4 status significantly predicts progression to MCI or AD across older adulthood and that this risk varies with age. This information will be useful as therapeutic interventions become available and clinical decisions can be individually tailored based on age and genetic data.
DOI: 10.1037/a0030855
发表时间: 2013-01
期刊: NEUROPSYCHOLOGY
影响因子: 2.4
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发表时间: 1996-09-01
期刊: DEMENTIA
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DOI: 10.1523/jneurosci.0033-12.2012
发表时间: 2012-04-04
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
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发表时间: 1998-07-01
影响因子: 11
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通讯作者: Trabucchi, M