Cited by 345Alzheimer's disease research and treatmentsMitochondrial Function and PathologyBiochemical Acid Research Studies

Abnormalities of mitochondrial enzymes in Alzheimer disease

Gibson, G. E., Sheu, K.-F. R., Blass, J. P.·1998·Journal of Neural Transmission

Abstract

Abundant evidence, including critical information gathered by Prof. Siegfried Hoyer and his colleagues, indicates that abnormalities of cerebral metabolism are common in neurodegenerative diseases, including Alzheimer's Disease (AD). Alterations in mitochondrial enzymes likely underlie these deficits. Replicable reductions in AD brain occur in the pyruvate dehydrogenase complex (the link of glycolysis to the Kreb's cycle), the alpha-ketoglutarate dehydrogenase complex (KGDHC; the link of Kreb's cycle to glutamate metabolism) and cytochrome oxidase (the link of the Kreb's cycle to oxygen utilization). Available evidence suggests that deficiencies in KGDHC may be genetic in some cases, whereas evidence that the other two enzyme systems have a genetic component is lacking. Additional results indicate that the reductions can also be secondary to other causes including oxidative stress. A variety of data suggest that the mitochondrial insufficiencies contribute significantly to the pathophysiology of AD.

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Crossref · 10.1007/s007020050099

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58 of 58 references verified0 citation errors · 0 not checkable

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  • In AD brains several mitochondrial enzymes have reduced Vmax activities, including pyruvate dehydrogenase and ketoglutarate dehydrogenase.

    “Relative to control brains, in AD brains several mitochondrial enzymes have reduced Vmax activities. Examples include two dehydrogenase enzymes, pyruvate dehydrogenase and ketoglutarate dehydrogenase [124].”

    From Brain aging, Alzheimer's disease, and mitochondria (2011) · cites this paper as [124]

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Authors
Gibson, G. E., Sheu, K.-F. R., & Blass, J. P.
Affiliations
Cornell University (US)
Venue
Journal of Neural Transmission
Published
1998-11-04
Volume
105
Issue
8-9
Pages
855-870
ISSN
  • 0300-9564 (ISSN-L)
  • 1435-1463
OpenAlex
W1989462226
Cited by
345
References
59
Citations by year
2026: 6 · 2025: 7 · 2024: 7 · 2023: 14 · 2022: 14 · 2021: 12 · 2020: 20 · 2019: 12 · 2018: 11 · 2017: 15 · 2016: 23 · 2015: 19 · 2014: 7 · 2013: 14 · 2012: 12
FWCI
4.29
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neural Transmission (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r35ag009014-07)
  • National Institute on Aging (AG11921, AG 09014, R01AG014600, R01AG011921, AG-14600)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Biochemical Acid Research Studies
Keywords
Alzheimer's disease, mitochondrial enzymes, pyruvate dehydrogenase complex, alpha-ketoglutarate dehydrogenase complex, cytochrome c oxidase, brain metabolism, neurodegeneration, oxidative stress, TCA cycle, glutamate metabolism, genetic deficiency
MeSH terms
Alzheimer Disease, Electron Transport Complex IV, Humans, Ketoglutarate Dehydrogenase Complex, Mitochondria, Pyruvate Dehydrogenase Complex, Oxidative Stress

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