Cerebral ß-Amyloid Angiopathy Is Associated with Earlier Dementia Onset in Alzheimer's Disease.
Neurodegener Dis
; 16(3-4): 218-24, 2016.
Article
in En
| MEDLINE
| ID: mdl-26756746
ABSTRACT
BACKGROUND:
Cerebral ß-amyloid angiopathy (CAA) occurs when ß-amyloid (Aß) is deposited in the vascular media and adventitia. It is a common pathology in the brains of older individuals and has been linked to cognitive decline, but relatively little is known about the influence that CAA has on the clinical manifestation of Alzheimer's disease (AD). The aim of this retrospective analysis was to quantify the effect that CAA had on the manifestation of initial AD-related cognitive change and subsequent progression of dementia.METHODS:
We analyzed neuropathological data from the National Alzheimer's Coordinating Center's data set, performing parametric analyses to assess differences in age of progression to moderate-stage dementia.RESULTS:
We found that individuals with both CAA burden and Aß neuritic plaque burden at death had the greatest risk of earlier conversion to very mild and moderate-stage dementia, but not necessarily faster progression.CONCLUSIONS:
Our results suggest that CAA contributes to changes in early AD pathogenesis. This supports the idea that vascular change and neuritic plaque deposition are not just parallel processes but reflect additive pathological cascades that influence the course of clinical AD manifestation. Further inquiry into the role of CAA and its contribution to early cognitive change in AD is suggested.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain
/
Amyloid beta-Peptides
/
Cerebral Amyloid Angiopathy
/
Alzheimer Disease
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
En
Journal:
Neurodegener Dis
Journal subject:
NEUROLOGIA
Year:
2016
Document type:
Article
Affiliation country:
United States