Genome-wide association study of Alzheimer's disease endophenotypes at prediagnosis stages.

Genome-wide association study of Alzheimer's disease endophenotypes at prediagnosis stages.
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DOI:
10.1016/j.jalz.2017.11.006
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发表时间:
2018-05
期刊:
Alzheimer's & dementia : the journal of the Alzheimer's Association
影响因子:
--
通讯作者:
Jun GR
Jun GR
中科院分区:
其他
文献类型:
--
作者:
Chung J;Wang X;Maruyama T;Ma Y;Zhang X;Mez J;Sherva R;Takeyama H;Alzheimer's Disease Neuroimaging Initiative;Lunetta KL;Farrer LA;Jun GR

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Genetic associations for endophenotypes of Alzheimer’s disease (AD) in cognitive stages preceding Alzheimer disease have not been thoroughly evaluated. We conducted GWAS for AD-related endophenotypes including hippocampal volume (HPV), logical memory scores (LMT), and cerebrospinal fluid (CSF) amyloid β42 and total/phosphorylated tau (t-/p-Tau) in cognitively normal (CN), mild cognitive impairment (MCI), and AD dementia subjects from the Alzheimer’s Disease Neuroimaging Initiative study. In CN subjects, study-wide significant (SWS; P<8.3×10−9) loci were identified for t-Tau near SRRM4 and C14orf79 and for HPV near MTUS1. In MCI subjects, SWS association was found with SNPs near ZNF804B for LMT-delayed recall. We found consistent expression patterns of C14orf40 and MTUS1 in carriers with risk alleles of eSNPs and in brains of AD patients, compared with in the non-carriers and in brains of controls. Our findings for AD-related brain changes prior to AD provide insight about early AD-related biological processes.
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