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Publication Detail
New insights on the genetic etiology of Alzheimer’s and related dementia
  • Publication Type:
    Working discussion paper
  • Authors:
    Bellenguez C, Küçükali F, Jansen I, Andrade V, Moreno-Grau S, Amin N, Naj A, Grenier-Boley B, Campos-Martin R, Holmans P, Boland A, Kleineidam L, Damotte V, van der Lee S, Kuulasmaa T, Yang Q, de Rojas I, Bis J, Yaqub A, Prokic I, Costa M, Chapuis J, Ahmad S, Giedraitis V, Boada M, Aarsland D, García-González P, Abdelnour C, Alarcón-Martín E, Alegret M, Alvarez I, Álvarez V, Armstrong N, Tsolaki A, Antúnez C, Appollonio I, Arcaro M, Archetti S, Pastor AA, Arosio B, Athanasiu L, Bailly H, Banaj N, Baquero M, Belén Pastor A, Benussi L, Berr C, Besse C, Bessi V, Binetti G, Bizzarro A, Alcolea D, Blesa R, Borroni B, Boschi S, Bossù P, Bråthen G, Bresner C, Brookes K, Brusco LI, Bûrger K, Bullido M, Burholt V, Bush W, Calero M, Dufouil C, Carracedo Á, Cecchetti R, Cervera-Carles L, Charbonnier C, Chillotti C, Brodaty H, Ciccone S, Claassen JAHR, Clark C, Conti E, Corma-Gómez A, Costantini E, Custodero C, Daian D, Dalmasso MC, Daniele A, Dardiotis E, Dartigues J-F, de Deyn PP, de Paiva Lopes K, de Witte L, Debette S, Deckert J, del Ser T, Denning N, DeStefano A, Dichgans M, Diehl-Schmid J, Diez-Fairen M, Rossi PD, Djurovic S, Duron E, Düzel E, Engelborghs S, Escott-Price V, Espinosa A, Buiza-Rueda D, Ewers M, Tagliavini F, Nielsen SF, Farotti L, Fenoglio C, Fernández-Fuertes M, Hardy J, Ferrari R, Ferreira C, Ferri E, Fin B, Fischer P, Fladby T, Fließbach K, Fortea J, Fostinelli S, Fox N, Franco-Macías E, Frank-García A, Froelich L, Galimberti D, García-Alberca JM, Garcia-Madrona S, García-Ribas G, Chene G, Ghidoni R, Giegling I, Giaccone G, Goldhardt O, González-Pérez A, Graff C, Grande G, Green E, Grimmer T, Grünblatt E, Guetta-Baranes T, Haapasalo A, Hadjigeorgiou G, Haines J, Hamilton-Nelson K, Hampel H, Hanon O, Hartmann A, Hausner L, Harwood J, Heilmann-Heimbach S, Helisalmi S, Heneka M, Hernández I, Herrmann M, Hoffmann P, Holmes C, Holstege H, Vilas RH, Hulsman M, Humphrey J, Biessels GJ, Johansson C, Kehoe P, Kilander L, Ståhlbom AK, Kivipelto M, Koivisto A, Kornhuber J, Kosmidis M, Kuksa P, Kunkle B, Lage C, Laukka E, Lauria A, Lee C-Y, Lehtisalo J, Satizabal C, Lerch O, Lleó A, Lopez R, Lopez O, de Munain AL, Love S, Löwemark M, Luckcuck L, Macías J, MacLeod C, Maier W, Mangialasche F, Spallazzi M, Marquié M, Marshall R, Martin E, Martín Montes A, Rodríguez CM, Masullo C, Mayeux R, Mead S, Mecocci P, Medina M, Meggy A, Mendoza S, Menéndez-González M, Mir P, Periñán MT, Mol M, Molina-Porcel L, Montrreal L, Morelli L, Moreno F, Morgan K, Nöthen M, Muchnik C, Nacmias B, Ngandu T, Nicolas G, Nordestgaard B, Olaso R, Orellana A, Orsini M, Ortega G, Padovani A, Caffarra P, Papenberg G, Parnetti L, Pasquier F, Pastor P, Pérez-Cordón A, Jordi
  • Publication date:
    04/10/2020
  • Status:
    Published
Abstract

ABSTRACT

Alzheimer’s disease (AD) is a severe and incurable neurodegenerative disease, and the failure to find effective treatments suggests that the underlying pathology remains poorly understood. Due to its strong heritability, deciphering the genetic landscape of AD and related dementia (ADD) is a unique opportunity to advance our knowledge. We completed a meta-analysis of genome-wide association studies (39,106 clinically AD-diagnosed cases, 46,828 proxy-ADD cases and 401,577 controls) with the most promising signals followed-up in 25,392 independent AD cases and 276,086 controls. We report 75 risk loci for ADD, including 42 novel ones. Pathway-enrichment analyses confirm the involvement of amyloid/Tau pathways, highlight the role of microglia and its potential interaction with APP metabolism. Numerous genes exhibited differential expression or splicing in AD-related conditions and gene prioritization implies EGFR signaling and TNF-α pathway through LUBAC complex. We also generated a novel polygenic risk score strongly associated with the risk of future dementia or progression from mild cognitive impairment to dementia. In conclusion, by more than doubling the number of loci associated with ADD risk, our study offers new insights into the pathophysiological processes underlying AD and offers additional therapeutic entry-points and tools for translational genomics.
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