PMID- 16980336 OWN - NLM STAT- MEDLINE DCOM- 20070125 LR - 20181113 IS - 1468-330X (Electronic) IS - 0022-3050 (Print) IS - 0022-3050 (Linking) VI - 78 IP - 2 DP - 2007 Feb TI - The effect of the apolipoprotein E gene polymorphisms and haplotypes on behavioural and psychological symptoms in probable Alzheimer's disease. PG - 123-6 AB - BACKGROUND: Patients with Alzheimer's disease and dementia commonly suffer from behavioural and psychological symptoms of dementia (BPSD). A genetic component to BPSD development in Alzheimer's disease has been demonstrated. Several studies have investigated whether the exon 4 epsilon2/epsilon3/epsilon4 haplotype of the apolipoprotein E (APOE) gene is associated with BPSD, with variable results. OBJECTIVE: We investigated the exon 4 polymorphisms and extended this study to include promoter polymorphisms and the resultant haplotypes across the gene. METHODS: Our large independent cohort of 388 patients with longitudinal measures of BPSD assessed by the Neuropsychiatric Inventory was used to analyse whether any of these variants were associated with the presence of BPSD. RESULTS: We revealed several significant relationships before correction for multiple testing. The exon 4 haplotype was associated with hallucinations and anxiety, A-491T with irritability, T-427C with agitation/aggression and appetite disturbances, and T-219C with depression. Haplotype analyses of all variants did not reveal any statistically significant findings. CONCLUSIONS: Our data and a review of previous studies showed a diversity of relationships, suggesting that these findings might be due to chance and so collectively do not support a role for the APOE gene in BPSD. FAU - Pritchard, A L AU - Pritchard AL AD - Molecular Psychiatry Group, Institute of Biomedical Research, University of Birmingham, Birmingham, UK. antonia.pritchard@qimr.edu.au FAU - Harris, J AU - Harris J FAU - Pritchard, C W AU - Pritchard CW FAU - Coates, J AU - Coates J FAU - Haque, S AU - Haque S FAU - Holder, R AU - Holder R FAU - Bentham, P AU - Bentham P FAU - Lendon, C L AU - Lendon CL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060915 PL - England TA - J Neurol Neurosurg Psychiatry JT - Journal of neurology, neurosurgery, and psychiatry JID - 2985191R RN - 0 (Apolipoprotein E4) SB - IM MH - Aged MH - Aged, 80 and over MH - Aggression MH - Alzheimer Disease/complications/*genetics/*psychology MH - Anxiety/genetics MH - Apolipoprotein E4/*genetics MH - Depression/genetics MH - Female MH - Hallucinations/genetics MH - Haplotypes MH - Humans MH - Longitudinal Studies MH - Male MH - Middle Aged MH - *Polymorphism, Genetic PMC - PMC2077651 COIS- Competing interests: None declared. EDAT- 2006/09/19 09:00 MHDA- 2007/01/26 09:00 PMCR- 2010/02/01 CRDT- 2006/09/19 09:00 PHST- 2006/09/19 09:00 [pubmed] PHST- 2007/01/26 09:00 [medline] PHST- 2006/09/19 09:00 [entrez] PHST- 2010/02/01 00:00 [pmc-release] AID - jnnp.2006.092122 [pii] AID - jn92122 [pii] AID - 10.1136/jnnp.2006.092122 [doi] PST - ppublish SO - J Neurol Neurosurg Psychiatry. 2007 Feb;78(2):123-6. doi: 10.1136/jnnp.2006.092122. Epub 2006 Sep 15.