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Published on: December 18, 2016
Dementia at old age: a clinical end-point of atherosclerotic disease
G J Blauw1, E L Bollen, M A van Buchem
1Section of Gerontology and Geriatrics, Leiden University Medical Center, The Netherlands.
Insights
Dementia in older adults, primarily Alzheimer's disease and vascular dementia, presents similarly. Both conditions contribute to cognitive decline, indicating a multifactorial cause for late-onset dementia.
Area of Science:
- Neurology
- Gerontology
- Pathology
Background:
- Late-onset dementia is frequently caused by Alzheimer's disease (AD) and vascular dementia (VaD).
- Clinical differentiation between AD and VaD in older individuals is challenging.
- Pathological evidence supports the overlap and co-occurrence of these conditions.
Purpose of the Study:
- To investigate the overlapping clinical and pathological features of late-onset Alzheimer's disease and vascular dementia.
- To highlight the multifactorial nature of cognitive decline in the elderly.
Main Methods:
- Clinical presentation analysis of dementia patients.
- Pathological examination of brain tissue.
Main Results:
- Clinical symptoms of late-onset Alzheimer's disease and vascular dementia are difficult to distinguish.
- Pathological findings confirm the interplay between vascular factors and amyloid deposition.
Conclusions:
- Late-onset dementia is a complex, multifactorial disease.
- Both vascular contributions and amyloid pathology are significant factors in age-related cognitive decline.
Abstract:
The main causes of dementia at old age are Alzheimer's disease and vascular dementia. The clinical presentations of late-onset Alzheimer's disease and vascular dementia can barely be differentiated. This clinical observation is supported by pathological findings. Late-onset dementia should be considered a multifactorial disease, in which both vascular factors and amyloid dispositions contribute to cognitive decline.
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