Cited by 103Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMitochondrial Function and Pathology

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In vivo mitochondrial and glycolytic impairments in patients with Alzheimer disease

Abstract

Objective In vivo glycolysis-related glucose metabolism and electron transport chain-related mitochondrial activity may be different regionally in the brains of patients with Alzheimer disease (AD). To test this hypothesis regarding AD pathophysiology, we measured the availability of mitochondrial complex-I (MC-I) with the novel PET probe [ 18 F]2-tert- butyl-4-chloro-5-2H- pyridazin-3-one ([ 18 F]BCPP-EF), which binds to MC-I, and compared [ 18 F]BCPP-EF uptake with 18 F-fluorodeoxyglucose ([ 18 F]FDG) uptake in the living AD brain. Methods First, the total distribution volume (V T ) of [ 18 F]BCPP-EF from 10 normal controls (NCs) was quantified using arterial blood samples and then tested to observe whether V T could substitute for the standard uptake value relative to the global count (SUVRg). Eighteen NCs and 14 different NCs underwent PET with [ 18 F]BCPP-EF or [ 18 F]FDG, respectively. Second, 32 patients with AD were scanned semiquantitatively with double PET tracers. Interparticipant and intraparticipant comparisons of the levels of MC-I activity ([ 18 F]BCPP-EF) and glucose metabolism ([ 18 F]FDG) were performed. Results The [ 18 F]BCPP-EF V T was positively correlated with the [ 18 F]BCPP-EF SUVRg, indicating that the use of the SUVRg was sufficient for semiquantitative evaluation. The [ 18 F]BCPP-EF SUVRg, but not the [ 18 F]FDG SUVRg, was significantly lower in the parahippocampus in patients with AD, highlighting the prominence of oxidative metabolic failure in t…

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Metadata

Authors
Terada, T., Obi, T., Bunai, T., Matsudaira, T., Yoshikawa, E., Ando, I., Futatsubashi, M., Tsukada, H., & Ouchi, Y.
Affiliations
Hamamatsu University (JP)
Venue
Neurology
Published
2020-04-14
Volume
94
Issue
15
Pages
e1592-e1604
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W3009651604
Cited by
103
References
10
Citations by year
2026: 9 · 2025: 16 · 2024: 14 · 2023: 12 · 2022: 22 · 2021: 19 · 2020: 11
FWCI
11.40
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (20K07901, 16H06402, 17K09797, 16H06400, 20H03600, 16H06277)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
Alzheimer's disease, mitochondrial dysfunction, mitochondrial complex I, 18F-FDG, glucose metabolism, glycolysis, parahippocampal region, medial temporal cortex, early Alzheimer's disease, regional brain metabolism, PET radiotracer
MeSH terms
Aged, Alzheimer Disease, Brain, Female, Glycolysis, Humans, Male, Mitochondria, Pyridines, Radiopharmaceuticals, Fluorodeoxyglucose F18

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