11 documents found, page 1 of 2
Depressive symptoms and amyloid pathology
Wiels, Wietse A.; Oomens, Julie E.; Engelborghs, Sebastiaan; Baeken, Chris; von Arnim, Christine A.F.; Boada, Mercè; Didic, Mira; Dubois, BrunoImportance: Depressive symptoms are associated with cognitive decline in older individuals. Uncertainty about underlying mechanisms hampers diagnostic and therapeutic efforts. This large-scale study aimed to elucidate the association between depressive symptoms and amyloid pathology. Objective: To examine the association between depressive symptoms and amyloid pathology and its dependency on age, sex, education...
Genetic associations between modifiable risk factors and Alzheimer disease
Luo, Jiao; Thomassen, Jesper Qvist; Bellenguez, Céline; Grenier-Boley, Benjamin; de Rojas, Itziar; Castillo, Atahualpa; Parveen, KayenatImportance: An estimated 40% of dementia is potentially preventable by modifying 12 risk factors throughout the life course. However, robust evidence for most of these risk factors is lacking. Effective interventions should target risk factors in the causal pathway to dementia. Objective: To comprehensively disentangle potentially causal aspects of modifiable risk factors for Alzheimer disease (AD) to inspire n...
Association of rare APOE missense variants V236E and R251G with risk of Alzheim...
Le Guen, Yann; Belloy, Michael E.; Grenier-Boley, Benjamin; de Rojas, Itziar; Castillo-Morales, Atahualpa; Jansen, Iris; Nicolas, AudeImportance: The APOE ε2 and APOE ε4 alleles are the strongest protective and risk-increasing, respectively, genetic variants for late-onset Alzheimer disease (AD). However, the mechanisms linking APOE to AD-particularly the apoE protein's role in AD pathogenesis and how this is affected by APOE variants-remain poorly understood. Identifying missense variants in addition to APOE ε2 and APOE ε4 could provide crit...
S327 phosphorylation of the presynaptic protein SEPTIN5 increases in the early ...
Ferreira, Catarina B.; Marttinen, Mikael; Coelho, Joana E; Paldanius, Kaisa M.A.; Takalo, Mari; Mäkinen, Petra; Leppänen, LuukasAlzheimer's disease (AD) is the most common form of dementia, which is neuropathologically characterized by extracellular senile plaques containing amyloid-β and intracellular neurofibrillary tangles composed of hyperphosphorylated tau protein. Previous studies have suggested a role for septin (SEPTIN) protein family members in AD-associated cellular processes. Here, we elucidated the potential role of presynap...
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...
Presynaptic vesicle protein SEPTIN5 regulates the degradation of APP C-Terminal...
Marttinen, Mikael; Ferreira, Catarina B.; Paldanius, Kaisa M. A.; Takalo, Mari; Natunen, Teemu; Mäkinen, Petra; Leppänen, Luukas; Leinonen, VilleAlzheimer's disease (AD) is a neurodegenerative disease characterized by aberrant amyloid-β (Aβ) and hyperphosphorylated tau aggregation. We have previously investigated the involvement of SEPTIN family members in AD-related cellular processes and discovered a role for SEPTIN8 in the sorting and accumulation of β-secretase. Here, we elucidated the potential role of SEPTIN5, an interaction partner of SEPTIN8, in...
Biomarker-based prognosis for people with mild cognitive impairment (ABIDE) : a...
van Maurik, Ingrid S; Vos, Stephanie J.; Bos, Isabelle; Bouwman, Femke H; Teunissen, Charlotte E.; Scheltens, Philip; Barkhof, Frederik; Frolich, LutzBackground: Biomarker-based risk predictions of dementia in people with mild cognitive impairment are highly relevant for care planning and to select patients for treatment when disease-modifying drugs become available. We aimed to establish robust prediction models of disease progression in people at risk of dementia. Methods: In this modelling study, we included people with mild cognitive impairment (MCI) fro...
Biomarker-based prognosis for people with mild cognitive impairment (ABIDE): a ...
van Maurik, Ingrid S.; Vos, Stephanie J.; Bos, Isabelle; Bouwman, Femke H.; Teunissen, Charlotte E.; Scheitens, Philip; Barkhof, Frederik; Frolich, LutzBackground Biomarker-based risk predictions of dementia in people with mild cognitive impairment are highly relevant for care planning and to select patients for treatment when disease-modifying drugs become available. We aimed to establish robust prediction models of disease progression in people at risk of dementia. Methods In this modelling study, we included people with mild cognitive impairment (MCI) from ...
The frequency and influence of dementia risk factors in prodromal Alzheimer's d...
Bos, Isabelle; Vos, Stephanie J.; Frölich, Lutz; Kornhuber, Johannes; Wiltfang, Jens; Maier, Wolfgang; Peters, Oliver; Rüther, EckhartWe investigated whether dementia risk factors were associated with prodromal Alzheimer's disease (AD) according to the International Working Group-2 and National Institute of Aging-Alzheimer's Association criteria, and with cognitive decline. A total of 1394 subjects with mild cognitive impairment from 14 different studies were classified according to these research criteria, based on cognitive performance and ...
Prevalence of cerebral amyloid pathology in persons without dementia
Jansen, Willemijn J.; Ossenkoppele, Rik; Knol, Dirk L.; Tijms, Betty M.; Scheltens, Philip; Verhey, Frans R. J.; Visser, Pieter Jelle; Aalten, PaulineImportance: Cerebral amyloid-β aggregation is an early pathological event in Alzheimer disease (AD), starting decades before dementia onset. Estimates of the prevalence of amyloid pathology in persons without dementia are needed to understand the development of AD and to design prevention studies. Objective: To use individual participant data meta-analysis to estimate the prevalence of amyloid pathology as meas...