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Interaction Between Arteriosclerosis and Amyloid-β on Cognitive Function.


ABSTRACT:

Background

Dementia is a multifactorial disease, with Alzheimer's disease (AD) and vascular pathology often co-occurring in many individuals with dementia. Yet, the interplay between AD and vascular pathology in cognitive decline is largely undetermined.

Objective

The aim of the present study was to examine the joint effect of arteriosclerosis and AD pathology on cognition in the general population without dementia.

Methods

We determined the interaction between blood-based AD biomarkers and CT-defined arteriosclerosis on cognition in 2,229 dementia-free participants of the population-based Rotterdam Study (mean age: 68.9 years, 52% women) cross-sectionally.

Results

Amyloid-β (Aβ)42 and arterial calcification were associated with cognitive performance. After further adjustment for confounders in a model that combined all biomarkers, only arterial calcification remained independently associated with cognition. There was a significant interaction between arterial calcification and Aβ42 and between arterial calcification and the ratio of Aβ42/40. Yet, estimates attenuated, and interactions were no longer statistically significant after adjustment for cardio metabolic risk factors.

Conclusions

Arteriosclerosis and AD display additive interaction-effects on cognition in the general population, that are due in part to cardio metabolic risk factors. These findings suggest that joint assessment of arteriosclerosis and AD pathology is important for understanding of disease etiology in individuals with cognitive impairment.

SUBMITTER: Frentz I 

PROVIDER: S-EPMC10836547 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature

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Publications

Interaction Between Arteriosclerosis and Amyloid-β on Cognitive Function.

Frentz Ingeborg I   van Arendonk Joyce J   Leeuwis Anna E AE   Vernooij Meike W MW   van der Flier Wiesje M WM   Bos Daniel D   De Deyn Peter Paul PP   Wolters Frank J FJ   Ikram M Arfan MA  

Journal of Alzheimer's disease : JAD 20240101 2


<h4>Background</h4>Dementia is a multifactorial disease, with Alzheimer's disease (AD) and vascular pathology often co-occurring in many individuals with dementia. Yet, the interplay between AD and vascular pathology in cognitive decline is largely undetermined.<h4>Objective</h4>The aim of the present study was to examine the joint effect of arteriosclerosis and AD pathology on cognition in the general population without dementia.<h4>Methods</h4>We determined the interaction between blood-based  ...[more]

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