Butyrylcholinesterase K and Apolipoprotein epsilon 4 Affect Cortical Thickness and Neuropsychiatric Symptoms in Alzheimer's Disease
- Authors
- Yoo, Hye B.; Lee, Hae W.; Shin, Sue; Park, Sun-Won; Choi, Jung S.; Jung, Hee Y.; Cha, Jungho; Lee, Jong-Min; Lee, Jun-Young
- Issue Date
- Feb-2014
- Publisher
- BENTHAM SCIENCE PUBL LTD
- Keywords
- Alzheimer' s disease; apolipoprotein epsilon 4; behavior; butyrylcholinesterase; cerebral cortex; genetics
- Citation
- CURRENT ALZHEIMER RESEARCH, v.11, no.2, pp.137 - 144
- Indexed
- SCIE
SCOPUS
- Journal Title
- CURRENT ALZHEIMER RESEARCH
- Volume
- 11
- Number
- 2
- Start Page
- 137
- End Page
- 144
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/160724
- DOI
- 10.2174/1567205011666140130152114
- ISSN
- 1567-2050
- Abstract
- Two major genotypes are known to affect the development and progression of Alzheimer's disease (AD) and its response to cholinesterase inhibitors: the apolipoprotein E (ApoE) and butyrylcholinesterase genes (BChE). This study analyzed the effects of the BChE and ApoE genotypes on the cortical thickness of patients with AD and examined how these genotypes affect the neuropsychiatric symptoms of AD. AD-drug-naive patients who met the probable AD criteria proposed by the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association were recruited. Of 96 patients with AD, 65 were eligible for cortical thickness analysis. 3D T1-weighted images were acquired, and the cortical regions were segmented using the constrained Laplacian-based automated segmentation with proximities (CLASP) algorithm. Neuropsychiatric symptoms were measured by Neuropsychiatric Inventory (NPI) scores. BChE wild-type carriers (BChE-W) showed more thinning in the left dorsolateral prefrontal cortex, including the lateral premotor regions and anterior cingulate cortex, than did BChE-K variant carriers (BChE-K). ApoE-epsilon 4 carriers had a thinner left medial prefrontal cortex, left superior frontal cortex, and left posterior cingulate cortex than did ApoE-epsilon 4 non-carriers. Statistical analyses revealed that BChE-K carriers showed significantly less severe aberrant motor behavioral symptoms and that epsilon 4 non-carriers showed less severe anxiety and indifference symptoms. The current findings show that, similar to ApoE-epsilon 4 non-carriers, BChE-K carriers are protected from the pathological detriments of AD that affect frontal cortical thickness and neuropsychiatric symptoms. This study visually demonstrated the effects of the BChE-K and ApoE genotypes on the structural degeneration and complex aspects of the symptoms of AD.
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