Abstract
To determine whether apolipoprotein alleles (APOE) influence behavioral and psychological signs and symptoms of dementia (BPSD), we initiated a prospective, longitudinal study. Patients with Alzheimer's disease (AD) (N = 186), frontotemporal dementia (FTD) (N = 29), mixed dementia (MXD) (N = 28), dementia with Lewy bodies (DLB) (N = 11) and Parkinson's disease dementia (PDD) (N = 7) were included. Blood was collected for DNA extraction and APOE genotyping. Behavioral assessments were performed at baseline and semi-annually thereafter, using behavioral assessment scales (Middelheim frontality score, behavioral pathology in Alzheimer's disease rating scale (Behave-AD)). In FTD patients, we identified dose dependent effects of APOE ε4 on the Behave-AD total and cluster aggressiveness scores. APOE ε2 was associated with a higher score on the Behave-AD cluster delusions in PDD/DLB patients. No APOE effects on frequency or severity of BPSD in AD and MXD patients were found. In conclusion, APOE has disease-specific effects on BPSD in FTD and PDD/DLB patients, given the reported associations of APOE ε4 with aggression (FTD) and of APOE ε2 with delusions (PDD/DLB).
Original language | English (US) |
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Pages (from-to) | 285-292 |
Number of pages | 8 |
Journal | Neurobiology of aging |
Volume | 27 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2006 |
Keywords
- APOE
- Aggressiveness
- Alzheimer's disease
- Anxiety
- BPSD
- Behavior
- Delusions
- Dementia
- Frontotemporal dementia
- Hallucinations
- Psychosis
ASJC Scopus subject areas
- Neuroscience(all)
- Aging
- Clinical Neurology
- Developmental Biology
- Geriatrics and Gerontology