Cerebrovascular and amyloid pathology in predementia stages: the relationship with neurodegeneration and cognitive decline - Sorbonne Université Access content directly
Journal Articles Alzheimer's Research and Therapy Year : 2017

Cerebrovascular and amyloid pathology in predementia stages: the relationship with neurodegeneration and cognitive decline

Abstract

Background: Cerebrovascular disease (CVD) and amyloid-β (Aβ) often coexist, but their influence on neurodegeneration and cognition in predementia stages remains unclear. We investigated the association between CVD and Aβ on neurodegenerative markers and cognition in patients without dementia. Methods: We included 271 memory clinic patients with subjective or objective cognitive deficits but without dementia from the BioBank Alzheimer Center Limburg cohort (n = 99) and the LeARN (n = 50) and DESCRIPA (n = 122) multicenter studies. CSF Aβ1-42 and white matter hyperintensities (WMH) on magnetic resonance imaging (MRI) scans were used as measures of Aβ and CVD, respectively. Individuals were classified into four groups based on the presence (+) or absence (-) of Aβ and WMH. We investigated differences in phosphorylated tau, total tau (t-tau), and medial temporal lobe atrophy (MTA) between groups using general linear models. We examined cognitive decline and progression to dementia using linear mixed models and Cox proportional hazards models. All analyses were adjusted for study and demographics. Results: MTA and t-tau were elevated in the Aβ - WMH+, Aβ + WMH-, and Aβ + WMH+ groups. MTA was most severe in the Aβ + WMH+ group compared with the groups with a single pathology. Both WMH and Aβ were associated with cognitive decline, but having both pathologies simultaneously was not associated with faster decline. Conclusions: In the present study, we found an additive association of Aβ and CVD pathology with baseline MTA but not with cognitive decline. Because our findings may have implications for diagnosis and prognosis of memory clinic patients and for future scientific research, they should be validated in a larger sample with longer follow-up.
Fichier principal
Vignette du fichier
s13195-017-0328-9.pdf (654 Ko) Télécharger le fichier
Origin Publication funded by an institution

Dates and versions

hal-04412759 , version 1 (23-01-2024)

Identifiers

Cite

Isabelle Bos, Frans R Verhey, Inez Ramakers, Heidi I L Jacobs, Hilkka Soininen, et al.. Cerebrovascular and amyloid pathology in predementia stages: the relationship with neurodegeneration and cognitive decline. Alzheimer's Research and Therapy, 2017, 9 (1), pp.101. ⟨10.1186/s13195-017-0328-9⟩. ⟨hal-04412759⟩
3 View
2 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More