| The APOE polymorphism in Alzheimer's disease patients with neuropsychiatric symptoms and syndromes. | |
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MedLine Citation:
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PMID: 21038346 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND : Neuropsychiatric symptoms (NPS) are a common feature of Alzheimer's disease (AD), resulting in particular AD endophenotypes. The common AD genetic risk factor apolipoprotein E (APOE) has been suggested underlying these AD endophenotypes. METHODS: APOE genotyping, a comprehensive geriatric assessment (CGA), and Neuropsychiatric Inventory were performed on 322 consecutive older patients. Patients were divided into three groups: AD with NPS (N = 93), AD without NPS (N = 108), and, as a control group, patients with no cognitive impairment (NoCI: N = 121). Patients with NPS were further sub-divided in four groups according to the European Alzheimer's Disease Consortium (EADC) classification of neuropsychiatric syndromes in AD: hyperactive, psychotic, affective, and apathetic. RESULTS: AD patients with NPS showed a significantly higher grade of cognitive impairment, more severity stage of dementia, more disability in the activities of daily living (ADL), and the instrumental ADL than AD patients without NPS. As expected, an higher frequency of APOE ε3/ε4 genotype was observed in patients with AD, both with and without NPS, than patients with NoCI. No difference in the distribution of APOE genotypes was found between AD patients with vs. without NPS. However, in AD patients APOE ε4-carriers, there was an increased risk of affective [odds ratio (OR): 2.34, 95% confidence interval (CI): 1.19-4.58) and apathetic (OR: 2.24,95%CI: 1.19-4.22) syndromes. CONCLUSIONS: These findings did not suggest a significant association between APOE polymorphism and presence of NPS in AD patients. In AD patients with NPS, however, APOE ε4-carrier status was associated with an increased risk of affective and apathetic syndromes. Copyright © 2010 John Wiley & Sons, Ltd. |
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Authors:
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Grazia D'Onofrio; Francesco Panza; Davide Seripa; Daniele Sancarlo; Francesco Paris; Leandro Cascavilla; Maria Urbano; Carolina Gravina; Andrea Fontana; Vincenzo Solfrizzi; Fabio Pellegrini; Alberto Pilotto |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-10-29 |
Journal Detail:
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Title: International journal of geriatric psychiatry Volume: - ISSN: 1099-1166 ISO Abbreviation: - Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-11-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8710629 Medline TA: Int J Geriatr Psychiatry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Geriatrics Unit and Gerontology-Geriatric Research Laboratory, Department of Medical Sciences, IRCCS 'Casa Sollievo della Sofferenza', San Giovanni Rotondo, FG, Italy. |
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