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Polygenic effects on the risk of Alzheimer’s disease in the Japanese population

19Citations signalées — pas une note de qualité
60Institutions déclarées
3Pays d’affiliation déclarés

Résumé fourni par la source

BACKGROUND: Polygenic effects have been proposed to account for some disease phenotypes; these effects are calculated as a polygenic risk score (PRS). This score is correlated with Alzheimer's disease (AD)-related phenotypes, such as biomarker abnormalities and brain atrophy, and is associated with conversion from mild cognitive impairment (MCI) to AD. However, the AD PRS has been examined mainly in Europeans, and owing to differences in genetic structure and lifestyle, it is unclear whether the same relationships between the PRS and AD-related phenotypes exist in non-European populations. In this study, we calculated and evaluated the AD PRS in Japanese individuals using genome-wide association study (GWAS) statistics from Europeans. METHODS: In this study, we calculated the AD PRS in 504 Japanese participants (145 cognitively unimpaired (CU) participants, 220 participants with late mild cognitive impairment (MCI), and 139 patients with mild AD dementia) enrolled in the Japanese Alzheimer's Disease Neuroimaging Initiative (J-ADNI) project. In order to evaluate the clinical value of this score, we (1) determined the polygenic effects on AD in the J-ADNI and validated it using two independent cohorts (a Japanese neuropathology (NP) cohort (n = 565) and the North American ADNI (NA-ADNI) cohort (n = 617)), (2) examined the AD-related phenotypes associated with the PRS, and (3) tested whether the PRS helps predict the conversion of MCI to AD. RESULTS: The PRS using 131 SNPs had an effect independent of APOE. The PRS differentiated between CU participants and AD patients with an area under the curve (AUC) of 0.755 when combined with the APOE variants. Similar AUC was obtained when PRS calculated by the NP and NA-ADNI cohorts was applied. In MCI patients, the PRS was associated with cerebrospinal fluid phosphorylated-tau levels (β estimate = 0.235, p value = 0.026). MCI with a high PRS showed a significantly increased conversion to AD in APOE ε4 noncarriers with a hazard rate of 2.22. In addition, we also developed a PRS model adjusted for LD and observed similar results. CONCLUSIONS: We showed that the AD PRS is useful in the Japanese population, whose genetic structure is different from that of the European population. These findings suggest that the polygenicity of AD is partially common across ethnic differences.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Polygenic effects on the risk of Alzheimer’s disease in the Japanese population
Date Crossref
27/02/2024
Éditeur
Springer Science and Business Media LLC
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

Osaka City UniversityThe University of TokyoNiigata UniversityTokyo Metropolitan Institute of GerontologyThe University of OsakaNagoya City UniversityRIKEN Center for Integrative Medical SciencesNational Center for Geriatrics and GerontologyResonance Research (United States)Brigham and Women's HospitalGeorgetown UniversityGeorgetown University Medical CenterUniversity of California San DiegoMayo ClinicMayo Clinic in ArizonaMayo Clinic in FloridaUniversity of California, BerkeleyUniversity of PennsylvaniaUniversity of Southern CaliforniaUniversity of California, DavisWashington University in St. LouisOregon Health & Science UniversityUniversity of San DiegoUniversity of MichiganBaylor College of MedicineColumbia University Irving Medical CenterUniversity of Alabama at BirminghamIcahn School of Medicine at Mount SinaiRush University Medical CenterStat Medical Devices (United States)Johns Hopkins UniversityNew York UniversityDuke UniversityDuke Medical CenterUniversity of KentuckyUniversity of Rochester MedicineUniversity of California, IrvineIrvine UniversityThe University of Texas Southwestern Medical CenterEmory UniversityUniversity of Kansas Medical CenterIndiana University BloomingtonUniversity of California, Los AngelesWinnMedYale UniversityJewish General HospitalSunnybrook Health Science CentreHealth Sciences CentreUniversity of British Columbia HospitalSt. Joseph's HospitalSt Joseph's Health CareLou Ruvo Brain InstituteNorthwestern UniversityPremiere Research InstituteStanford UniversityBanner HealthBanner Sun Health Research InstituteBoston UniversityCornell UniversityThe Neurological Institute

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Sujets associés

Genetic Associations and EpidemiologyDementia and Cognitive Impairment ResearchAlzheimer's disease research and treatments

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