Cognitive Outcomes in Autosomal-Dominant Alzheimer's Disease: A Comprehensive Review from a Colombian Kindred with the Presenilin-1 E280A Mutation
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View abstract on PubMed
Summary
This summary is machine-generated.Autosomal-dominant Alzheimer's disease (ADAD) linked to the PSEN1 E280A mutation shows early cognitive decline. Verbal, semantic, episodic, and spatial memory tests are key indicators for detecting preclinical changes in carriers.
Area Of Science
- Neuroscience
- Genetics
- Psychology
Background
- The largest kindred with autosomal-dominant Alzheimer's disease (ADAD) worldwide carries the PSEN1 E280A mutation in Colombia.
- Mutation carriers typically develop dementia starting in their late 30s, with a median onset age of 49, and cognitive decline is a primary symptom.
Purpose Of The Study
- To synthesize existing literature on neuropsychological assessments in PSEN1 E280A mutation carriers across their lifespan.
- To provide a comprehensive overview of cognitive outcomes in this unique ADAD population.
Main Methods
- A systematic review and integration of published research on neuropsychological assessments in PSEN1 E280A carriers.
- Analysis focused on memory domains (verbal, semantic, episodic, spatial) and other cognitive functions (language, attention, visuospatial, executive functioning).
Main Results
- Verbal, semantic, episodic, and spatial memory tests are the most sensitive indicators of preclinical changes in PSEN1 E280A carriers.
- Inconsistent findings were observed for language, attention, visuospatial memory, and executive functioning tests, indicating potential limitations in early detection.
- Specialized cognitive tasks for this population are effective but underutilized.
Conclusions
- Continued development of cognitive tests is crucial for early ADAD detection and screening in PSEN1 E280A carriers.
- Investigating ADAD mutations in children could reveal early Alzheimer's disease changes and improve understanding of lifespan neuropsychological functioning.
- This synthesis offers valuable insights for ADAD research, clinical management, and policy development.
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