2 documents found, page 1 of 1
Common variants in Alzheimer's disease and risk stratification by polygenic ris...
de Rojas, Itziar; Moreno-Grau, Sonia; Tesi, Niccolo; Grenier-Boley, Benjamin; Andrade, Victor; Jansen, Iris E.; Pedersen, Nancy L.; Stringa, NajadaGenetic 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). Her...
Multimodal MRI analysis of basal forebrain structure and function across the Al...
Herdick, Meret; Dyrba, Martin; Fritz, Hans-Christian J.; Altenstein, Slawek; Ballarini, Tommaso; Brosseron, Frederic; Buerger, KatharinaBackground: Dysfunction of the cholinergic basal forebrain (cBF) is associated with cognitive decline in Alz- heimer’s disease (AD). Multimodal MRI allows for the investigation of cBF changes in-vivo. In this study we assessed alterations in cBF functional connectivity (FC), mean diffusivity (MD), and volume across the spectrum of AD. We further assessed effects of amyloid pathology on these changes. Methods: P...