Alzheimer's & dementia : the journal of the Alzheimer's Association · 2016
Two novel loci, COBL and SLC10A2, for Alzheimer's disease in African Americans.
СтатьяПоддержка NIH: внешняя программаНазвание и аннотация: Перевод пока не подготовлен
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Mez Jesse, Chung Jaeyoon, Jun Gyungah, Kriegel Joshua, Bourlas Alexandra P, Sherva Richard, Logue Mark W, Barnes Lisa L, Bennett David A, Buxbaum Joseph D, Byrd Goldie S, Crane Paul K, Ertekin-Taner Nilüfer, Evans Denis, Fallin M Daniele, Foroud Tatiana, Goate Alison, Graff-Radford Neill R, Hall Kathleen S, Kamboh M Ilyas, Kukull Walter A, Larson Eric B, Manly Jennifer J, Alzheimer's Disease Genetics Consortium, Haines Jonathan L, Mayeux Richard, Pericak-Vance Margaret A, Schellenberg Gerard D, Lunetta Kathryn L, Farrer Lindsay A
Аннотация
INTRODUCTION: African Americans' (AAs) late-onset Alzheimer's disease (LOAD) genetic risk profile is incompletely understood. Including clinical covariates in genetic analyses using informed conditioning might improve study power.
METHODS: We conducted a genome-wide association study (GWAS) in AAs employing informed conditioning in 1825 LOAD cases and 3784 cognitively normal controls. We derived a posterior liability conditioned on age, sex, diabetes status, current smoking status, educational attainment, and affection status, with parameters informed by external prevalence information. We assessed association between the posterior liability and a genome-wide set of single-nucleotide polymorphisms (SNPs), controlling for APOE and ABCA7, identified previously in a LOAD GWAS of AAs.
RESULTS: Two SNPs at novel loci, rs112404845 (P = 3.8 × 10-8), upstream of COBL, and rs16961023 (P = 4.6 × 10-8), downstream of SLC10A2, obtained genome-wide significant evidence of association with the posterior liability.
DISCUSSION: An informed conditioning approach can detect LOAD genetic associations in AAs not identified by traditional GWAS.
METHODS: We conducted a genome-wide association study (GWAS) in AAs employing informed conditioning in 1825 LOAD cases and 3784 cognitively normal controls. We derived a posterior liability conditioned on age, sex, diabetes status, current smoking status, educational attainment, and affection status, with parameters informed by external prevalence information. We assessed association between the posterior liability and a genome-wide set of single-nucleotide polymorphisms (SNPs), controlling for APOE and ABCA7, identified previously in a LOAD GWAS of AAs.
RESULTS: Two SNPs at novel loci, rs112404845 (P = 3.8 × 10-8), upstream of COBL, and rs16961023 (P = 4.6 × 10-8), downstream of SLC10A2, obtained genome-wide significant evidence of association with the posterior liability.
DISCUSSION: An informed conditioning approach can detect LOAD genetic associations in AAs not identified by traditional GWAS.
Предметные рубрики MeSH
ATP-Binding Cassette TransportersBlack or African AmericanAgedAged, 80 and overAlzheimer DiseaseApolipoproteins EDiabetes ComplicationsEducational StatusFemaleGenetic LociGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansMaleMicrofilament ProteinsOrganic Anion Transporters, Sodium-DependentPolymorphism, Single NucleotidePrevalenceSmokingSymporters