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Effect of Alzheimer's Disease and Lewy Body Disease on Metabolic Changes

 Yang Hyun Lee  ;  Seun Jeon  ;  Han Soo Yoo  ;  Seok Jong Chung  ;  Jin Ho Jung  ;  Kyoungwon Baik  ;  Young H Sohn  ;  Phil Hyu Lee  ;  Mijin Yun  ;  Alan C Evans  ;  Byoung Seok Ye 
 JOURNAL OF ALZHEIMERS DISEASE, Vol.79(4) : 1471-1487, 2021-05 
Journal Title
Issue Date
Alzheimer’s disease ; amyloid ; glucose metabolism ; lewy body disease
Background: The relationship among amyloid-β (Aβ) deposition on amyloid positron emission tomography (PET), cortical metabolism on 18F-fluoro-2-deoxy-D-glucose (FDG)-PET, and clinical diagnosis has not been elucidated for both Alzheimer's disease (AD) and Lewy body disease (LBD).

Objective: We investigated the patterns of cerebral metabolism according to the presence of AD and LBD.

Methods: A total of 178 subjects were enrolled including 42 pure AD, 32 pure LBD, 34 Lewy body variant AD (LBVAD), 15 LBD with amyloid, 26 AD with dementia with Lewy bodies (DLB), and 29 control subjects. Pure AD, LBVAD, and AD with DLB groups had biomarker-supported diagnoses of typical AD, while pure LBD, LBD with amyloid, and AD with DLB groups had biomarker-supported diagnoses of typical LBD. Typical AD and LBD with amyloid showed amyloid-positivity on 18F-florbetaben (FBB) PET, while typical LBD and LBVAD had abnormalities on dopamine transporter PET. We measured regional patterns of glucose metabolism using FDG-PET and evaluated their relationship with AD and LBD.

Results: Compared with control group, typical AD and typical LBD commonly exhibited hypometabolism in the bilateral temporo-parietal junction, precuneus, and posterior cingulate cortex. Typical AD showed an additional hypometabolism in the entorhinal cortex, while patients with dopamine transporter abnormality-supported diagnosis of LBD showed diffuse hypometabolism that spared the sensory-motor cortex. Although the diffuse hypometabolism in LBD also involved the occipital cortex, prominent occipital hypometabolism was only seen in LBD with amyloid group.

Conclusion: Combining clinical and metabolic evaluations may enhance the diagnostic accuracy of AD, LBD, and mixed disease cases.
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1. College of Medicine (의과대학) > Research Institute (부설연구소) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
Yonsei Authors
Baik, Kyoungwon(백경원) ORCID logo https://orcid.org/0000-0001-7215-375X
Sohn, Young Ho(손영호) ORCID logo https://orcid.org/0000-0001-6533-2610
Ye, Byoung Seok(예병석) ORCID logo https://orcid.org/0000-0003-0187-8440
Yoo, Han Soo(유한수) ORCID logo https://orcid.org/0000-0001-7846-6271
Yun, Mijin(윤미진) ORCID logo https://orcid.org/0000-0002-1712-163X
Lee, Yang Hyun(이양현)
Lee, Phil Hyu(이필휴) ORCID logo https://orcid.org/0000-0001-9931-8462
Jeon, Seun(전세운) ORCID logo https://orcid.org/0000-0003-2817-3352
Chung, Seok Jong(정석종) ORCID logo https://orcid.org/0000-0001-6086-3199
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