Transferability of European-derived Alzheimer's disease polygenic risk scores across multiancestry populations.

ABSTRACT: A polygenic score (PGS) for Alzheimer's disease (AD) was derived recently from data on genome-wide significant loci in European ancestry populations. We applied this PGS to populations in 17 European countries and observed a consistent association with the AD risk, age at onset and cerebrospinal fluid levels of AD biomarkers, independently of apolipoprotein E locus (APOE). This PGS was also associated with the AD risk in many other populations of diverse ancestries. A cross-ancestry polygenic risk score improved the association with the AD risk in most of the multiancestry populations tested when the APOE region was included. Finally, we found that the PGS/polygenic risk score captured AD-specific information because the association weakened as the diagnosis was broadened. In conclusion, a

SUBMITTER: Nicolas A 

PROVIDER: S-EPMC12283339 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature