Cited by 598Mitochondrial Function and PathologyAlzheimer's disease research and treatmentsDementia and Cognitive Impairment Research

Cytochrome oxidase deficiency in Alzheimer’s disease

Parker, William Davis, Filley, Christopher M., Parks, Janice K.·1990·Neurology

Abstract

We assayed cytochrome oxidase and other electron transport chain activities in platelet mitochondria isolated from patients with Alzheimer's disease (AD). Five of 6 patients had striking reductions of platelet cytochrome oxidase activity (patient mean, 83.72 +/- 82.99 nmol/min/mg; control mean, 167.14 +/- 36.21 nmol/min/mg; n = 8). Other electron transport chain catalytic activities were not significantly different than control values. AD may be a systemic illness, a primary defect in cytochrome oxidase may be pathogenically important in its production, and the mitochondrial genes encoding cytochrome oxidase subunits may be important in producing the defect.

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Crossref · 10.1212/wnl.40.8.1302

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  • In mitochondria isolated from AD platelets, the activity of complex IV, or cytochrome c oxidase, is significantly decreased.

    “however, in mitochondria isolated from AD platelets, the activity of complex IV, or cytochrome c oxidase, is significantly decreased [109,110,111]”
  • Reduced COX activity is also seen in AD subject platelets and fibroblasts.

    “In addition to the brain, reduced COX activity is also seen in AD subject platelets and fibroblasts [127, 128].”

    From Brain aging, Alzheimer's disease, and mitochondria (2011) · cites this paper as [127]

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Authors
Parker, W. D., Filley, C. M., & Parks, J. K.
Affiliations
University of Colorado Denver (US)
Venue
Neurology
Published
1990-08
Volume
40
Issue
8
Pages
1302-1302
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W1988731658
Cited by
598
References
0
Citations by year
2026: 19 · 2025: 10 · 2024: 12 · 2023: 20 · 2022: 9 · 2021: 22 · 2020: 25 · 2019: 19 · 2018: 18 · 2017: 18 · 2016: 28 · 2015: 10 · 2014: 10 · 2013: 21 · 2012: 15
FWCI
7.27
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (7r01ns025382-06)
  • National Institute of Neurological Disorders and Stroke (NS25382)
  • National Center for Research Resources (RR-69)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
cytochrome oxidase deficiency, Alzheimer's disease, platelet mitochondria, electron transport chain, mitochondrial dysfunction, systemic disease
MeSH terms
Aged, Alzheimer Disease, Blood Platelets, Electron Transport Complex IV, Electron Transport, Female, Humans, Kinetics, Male, Mitochondria, Reference Values, Cytochrome-c Oxidase Deficiency

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