Common Variants in Alzheimer’s Disease and Risk Stratification by Polygenic Risk Scores

Genetic discoveries of Alzheimer's disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all...

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Detalles Bibliográficos
Autores: De Rojas, Itziar, EADB contributors, The GR@ACE study group, DEGESCO Consortium, IGAP (ADGC, CHARGE, EADI, GERAD), PGC-ALZ consortia, López de Munain Arregui, Adolfo José
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/52011
Acceso en línea:http://hdl.handle.net/10810/52011
Access Level:acceso abierto
Palabra clave:alzheimer's disease
polygenetic risk
preventive and curative clinical trials
SHARPIN gene
stratifying by APOE
individuals at high risk
Descripción
Sumario:Genetic discoveries of Alzheimer's disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all available case-control datasets and by-proxy study results (discovery n=409,435 and validation size n=58,190). Here, we add six variants associated with Alzheimer's disease risk (near APP, CHRNE, PRKD3/NDUFAF7, PLCG2 and two exonic variants in the SHARPIN gene). Assessment of the polygenic risk score and stratifying by APOE reveal a 4 to 5.5 years difference in median age at onset of Alzheimer's disease patients in APOE ɛ4 carriers. Because of this study, the underlying mechanisms of APP can be studied to refine the amyloid cascade and the polygenic risk score provides a tool to select individuals at high risk of Alzheimer's disease.