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Amyloid burden, cerebrovascular disease, brain atrophy, and cognition in cognitively impaired patients.


ABSTRACT: We investigated the independent effects of Alzheimer's disease (AD) and cerebrovascular disease (CVD) pathologies on brain structural changes and cognition.Amyloid burden (Pittsburgh compound B [PiB] retention ratio), CVD markers (volume of white matter hyperintensities [WMH] and number of lacunae), and structural changes (cortical thickness and hippocampal shape) were measured in 251 cognitively impaired patients. Path analyses were utilized to assess the effects of these markers on cognition.PiB retention ratio was associated with hippocampal atrophy, which was associated with memory impairment. WMH were associated with frontal thinning, which was associated with executive and memory dysfunctions. PiB retention ratio and lacunae were also associated with memory and executive dysfunction without the mediation of hippocampal or frontal atrophy.Our results suggest that the impacts of AD and CVD pathologies on cognition are mediated by specific brain regions.

SUBMITTER: Ye BS 

PROVIDER: S-EPMC5862069 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Amyloid burden, cerebrovascular disease, brain atrophy, and cognition in cognitively impaired patients.

Ye Byoung Seok BS   Seo Sang Won SW   Kim Geon Ha GH   Noh Young Y   Cho Hanna H   Yoon Cindy W CW   Kim Hee Jin HJ   Chin Juhee J   Jeon Seun S   Lee Jong Min JM   Seong Joon-Kyung JK   Kim Jae Seung JS   Lee Jae-Hong JH   Choe Yearn Seong YS   Lee Kyung Han KH   Sohn Young H YH   Ewers Michael M   Weiner Michael M   Na Duk L DL  

Alzheimer's & dementia : the journal of the Alzheimer's Association 20140719 5


<h4>Background</h4>We investigated the independent effects of Alzheimer's disease (AD) and cerebrovascular disease (CVD) pathologies on brain structural changes and cognition.<h4>Methods</h4>Amyloid burden (Pittsburgh compound B [PiB] retention ratio), CVD markers (volume of white matter hyperintensities [WMH] and number of lacunae), and structural changes (cortical thickness and hippocampal shape) were measured in 251 cognitively impaired patients. Path analyses were utilized to assess the effe  ...[more]

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