Related Experiment Videos
Down syndrome and Alzheimer's disease: a link between development and aging
1Department of Pediatrics, University of California, Irvine, Orange, CA 92868, USA. itlott@uci.edu
Mental Retardation and Developmental Disabilities Research Reviews
|September 13, 2001
Summary
Individuals with Down syndrome (DS) often develop Alzheimer's disease (AD) neuropathology early. Research aims to identify early clinical signs of AD in DS by linking clinical data with neuropathology.
Area of Science:
- Neuroscience
- Genetics
- Gerontology
Background:
- Down syndrome (DS) is associated with an increased risk of Alzheimer's disease (AD).
- Trisomy 21 leads to overproduction of amyloid precursor protein, causing early plaque formation in DS.
- Existing dementia tests are challenging for individuals with DS due to developmental differences.
Observation:
- Aged individuals with DS frequently show Alzheimer's-like neuropathology.
- Neuropathology in DS mirrors early AD development, offering insights into aging and development.
- Oxidative damage and neuroinflammation may accelerate AD progression in DS individuals over 40.
Findings:
- Consistent age-associated neuropathology is observed in DS, irrespective of clinical presentation.
- The molecular and clinical basis of the AD-DS association is under investigation.
- Linking clinical data with neuropathology can reveal early AD indicators in DS.
Implications:
- Understanding AD in DS can illuminate the interplay between development and aging.
- Identifying early clinical markers is crucial for timely intervention in DS dementia.
- This research advances knowledge on neurodegenerative diseases in specific populations.