Abstract:
OBJECTIVE:Apathy is one of the most frequent symptoms of dementia, whose underlying neurobiology is not well understood. The objective was to analyze the correlations of apathy and its dimensions with gray and white matter damage in the brain of patients with advanced Alzheimer's disease (AD). METHODS:The setting of the study was at the Alzheimer Center Reina Sofía Foundation Research Unit. Participants include 37 nursing home patients with moderate to severe AD, 78.4% were women, and mean Standard Deviation (SD) age is 82.7 (5.8). Several measurements were taken: severe mini-mental state examination and Global Deterioration Scale for cognitive and functional status, Neuropsychiatric Inventory for behavioral problems, and Apathy In Dementia-Nursing Home Version Scale for apathy, including total score and subscores of emotional blunting, deficit of thinking, and cognitive inertia. 3T magnetic resonance imaging measures (voxel-based morphometry, fluid-attenuated inversion recovery, and diffusion tensor imaging) were also conducted. RESULTS:Moderate levels of apathy (mean Apathy In Dementia-Nursing Home Version Scale: 31.1 ± 18.5) were found. Bilateral damage to the corpus callosum and internal capsule was associated with apathy severity (cluster size 2435, p < 0.0005, family-wise error [FWE]-corrected). A smaller and more anteriorly located region of the right internal capsule and corpus callosum was associated with higher emotional blunting (cluster size 334, p < 0.0005, FWE-corrected). Ischemic damage in the right periventricular frontal region was associated with higher deficit of thinking (cluster size 3805, p < 0.005, FWE-corrected). CONCLUSIONS:Brain damage related to apathy may have different features in the advanced stages of AD and differs between the three apathy dimensions. Besides atrophy, brain connectivity and vascular lesions are relevant in the study of apathy, especially in the more severe stages of dementia. Further magnetic resonance imaging studies should include multimodal techniques. Copyright © 2016 John Wiley & Sons, Ltd.
journal_name
Int J Geriatr Psychiatryjournal_title
International journal of geriatric psychiatryauthors
Agüera-Ortiz L,Hernandez-Tamames JA,Martinez-Martin P,Cruz-Orduña I,Pajares G,López-Alvarez J,Osorio RS,Sanz M,Olazarán Jdoi
10.1002/gps.4548subject
Has Abstractpub_date
2017-08-01 00:00:00pages
922-930issue
8eissn
0885-6230issn
1099-1166journal_volume
32pub_type
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journal_title:International journal of geriatric psychiatry
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pub_type: 杂志文章,meta分析,评审
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pub_type: 杂志文章,meta分析,评审
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pub_type: 杂志文章,多中心研究
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更新日期:2005-08-01 00:00:00
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更新日期:2006-05-01 00:00:00
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更新日期:2017-12-01 00:00:00