Abstract:
:The Genetics Core of the Alzheimer's Disease Neuroimaging Initiative (ADNI), formally established in 2009, aims to provide resources and facilitate research related to genetic predictors of multidimensional Alzheimer's disease (AD)-related phenotypes. Here, we provide a systematic review of genetic studies published between 2009 and 2012 where either ADNI APOE genotype or genome-wide association study (GWAS) data were used. We review and synthesize ADNI genetic associations with disease status or quantitative disease endophenotypes including structural and functional neuroimaging, fluid biomarker assays, and cognitive performance. We also discuss the diverse analytical strategies used in these studies, including univariate and multivariate analysis, meta-analysis, pathway analysis, and interaction and network analysis. Finally, we perform pathway and network enrichment analyses of these ADNI genetic associations to highlight key mechanisms that may drive disease onset and trajectory. Major ADNI findings included all the top 10 AD genes and several of these (e.g., APOE, BIN1, CLU, CR1, and PICALM) were corroborated by ADNI imaging, fluid and cognitive phenotypes. ADNI imaging genetics studies discovered novel findings (e.g., FRMD6) that were later replicated on different data sets. Several other genes (e.g., APOC1, FTO, GRIN2B, MAGI2, and TOMM40) were associated with multiple ADNI phenotypes, warranting further investigation on other data sets. The broad availability and wide scope of ADNI genetic and phenotypic data has advanced our understanding of the genetic basis of AD and has nominated novel targets for future studies employing next-generation sequencing and convergent multi-omics approaches, and for clinical drug and biomarker development.
journal_name
Brain Imaging Behavjournal_title
Brain imaging and behaviorauthors
Shen L,Thompson PM,Potkin SG,Bertram L,Farrer LA,Foroud TM,Green RC,Hu X,Huentelman MJ,Kim S,Kauwe JS,Li Q,Liu E,Macciardi F,Moore JH,Munsie L,Nho K,Ramanan VK,Risacher SL,Stone DJ,Swaminathan S,Toga AW,Weinerdoi
10.1007/s11682-013-9262-zsubject
Has Abstractpub_date
2014-06-01 00:00:00pages
183-207issue
2eissn
1931-7557issn
1931-7565journal_volume
8pub_type
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