Cited by 80Alzheimer's disease research and treatmentsMitochondrial Function and PathologyDementia and Cognitive Impairment Research

Oxidative metabolism in cultured fibroblasts derived from sporadic Alzheimer's disease (AD) patients

Curti, Daniela, Rognoni, Francesca, Gasparini, Laura, Cattaneo, Achille, Paolillo, Mayra, Racchi, Marco, Zani, Laura, Bianchetti, Angelo +3 more·1997·Neuroscience Letters

Abstract

Fibroblasts from Alzheimer's disease (AD) patients displayed decreased cytochrome c oxidase (complex IV) activity (P < 0.05). The basal oxygen consumption rate (QO2) and the response to an uncoupler of oxidative phosphorylation did not differ between AD and control fibroblasts. The QO2 of AD fibroblasts was more susceptible (P < 0.05) to inhibition by azide in the range 0.5-5 mM. The basal intracellular pH (pHi) in AD fibroblasts was significantly more acidic than in control ones. The results support the hypothesis that subtle dysfunctions of oxidative energy-producing processes are present in fibroblasts from sporadic AD patients. The alterations observed scantly influence the fibroblasts functioning even in stressful conditions; however in tissues, such as the brain, that rely heavily on oxidative metabolism for their function, similar alterations may trigger molecular mechanisms leading to cell damage.

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Registry

Crossref · 10.1016/s0304-3940(97)00741-6

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21 of 21 references verified0 citation errors · 0 not checkable

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  • 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 [128]

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Authors
Curti, D., Rognoni, F., Gasparini, L., Cattaneo, A., Paolillo, M., Racchi, M., Zani, L., Bianchetti, A., Trabucchi, M., Bergamaschi, S., & Govoni, S.
Affiliations
  • University of Pavia (IT)
  • University of Milan (IT)
Corresponding author
Curti, Daniela
Venue
Neuroscience Letters
Publisher
Elsevier BV
Published
1997-10
Volume
236
Issue
1
Pages
13-16
ISSN
0304-3940 (ISSN-L)
OpenAlex
W2013876822
Cited by
80
References
21
Citations by year
2025: 3 · 2024: 2 · 2023: 5 · 2022: 3 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 4 · 2017: 2 · 2016: 1 · 2013: 4 · 2012: 7
FWCI
1.63
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, sporadic Alzheimer's disease, fibroblasts, oxidative metabolism, cytochrome c oxidase, oxygen consumption, uncouplers of oxidative phosphorylation, azide sensitivity, intracellular pH, oxidative phosphorylation, energy metabolism
MeSH terms
Aged, Alzheimer Disease, Cells, Cultured, Electron Transport Complex IV, Energy Metabolism, Female, Fibroblasts, Humans, Male, Middle Aged, Oxidation-Reduction, Oxygen Consumption, Periodicity, Case-Control Studies

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