Abstract
Apolipoprotein E ε4 (ApoE ε4) is associated with an earlier age at onset of Alzheimer's (AD) and possibly Parkinson's disease, suggesting a general role for ApoE ε4 in neuronal plasticity. Among 31 prospectively assessed subjects with pathologically confirmed AD (without Lewy bodies), ε4+ subjects had a longer duration of disease (by 2.8 years, p = 0.04). Only cell loss in the substantia nigra (p = 0.002) was associated with ε4. Neither neurofibrillary tangles nor plaque counts were associated with ε4. Cell counts of pigmented neurons in single midbrain sections in ε4+ specimens were 72% of those in ε4-substantia nigra (p = 0.04). These findings confirm that cell loss in the substantia nigra is associated with ε4 in AD.
Original language | English (US) |
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Pages (from-to) | 437-441 |
Number of pages | 5 |
Journal | Dementia and geriatric cognitive disorders |
Volume | 10 |
Issue number | 6 |
DOIs | |
State | Published - 1999 |
Keywords
- Alzheimer's disease
- Apolipoprotein E
- Neuronal loss
- Substantia nigra
ASJC Scopus subject areas
- Geriatrics and Gerontology
- Cognitive Neuroscience
- Psychiatry and Mental health