The National Institute on Aging Late‐Onset Alzheimer's Disease Family Based Study: A resource for genetic discovery
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Open Access
- 3 January 2022
- journal article
- research article
- Published by Wiley in Alzheimer's & Dementia
- Vol. 18 (10) , 1889-1897
Abstract
Introduction: The National Institute on Aging Late‐Onset Alzheimer's Disease Family Based Study (NIA‐LOAD FBS) was established to study the genetic etiology of Alzheimer's disease (AD).Methods: Recruitment focused on families with two living affected siblings and a third first‐degree relative similar in age with or without dementia. Uniform assessments were completed, DNA was obtained, as was neuropathology, when possible. Apolipoprotein E (APOE) genotypes, genome‐wide single nucleotide polymorphism (SNP) arrays, and sequencing was completed in most families.Results: APOE genotype modified the age‐at‐onset in many large families. Novel variants and known variants associated with early‐ and late‐onset AD and frontotemporal dementia were identified supporting an international effort to solve AD genetics.Discussion: The NIA‐LOAD FBS is the largest collection of familial AD worldwide, and data or samples have been included in 123 publications addressing the genetic etiology of AD. Genetic heterogeneity and variability in the age‐at‐onset provides opportunities to investigate the complexity of familial AD.Keywords
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