Cited by 455Antioxidant Activity and Oxidative StressAtherosclerosis and Cardiovascular DiseasesNitric Oxide and Endothelin Effects

Stimulation of lipid peroxidation and hydroxyl-radical generation by the contents of human atherosclerotic lesions

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Smith, C, Mitchinson, M J, Aruoma, O I, Halliwell, B·1992·Biochemical Journal

Abstract

Lipid peroxidation within human arterial lesions is thought to play an important role in the development of atherosclerosis. Peroxidation can be accelerated by the presence of ‘catalytic’ iron or copper ions. Gruel samples from advanced atherosclerotic lesions in the abdominal aortae of human cadavers were tested for pro-oxidant properties. All samples contained bleomycin-detectable iron and phenanthroline-detectable copper. Almost all gruel samples stimulated peroxidation of rat liver microsomes, and this was usually inhibited by the iron-ion chelator desferrioxamine. Some samples stimulated formation of hydroxyl radicals from H2O2 in the presence of ascorbate, a reaction again inhibited by desferrioxamine. We conclude that the interior of human advanced atherosclerotic lesions is a highly pro-oxidant environment, and that the use of copper or iron ions to promote peroxidation of low-density lipoproteins in vitro may be a valid model for events in the arterial wall.

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  1. Carew, T. E., Schwenke, D. C., & Steinberg, D. (1987) Proc. Natl. Acad. Sci. U.S.A. 84, 7725-7729
  2. Kita, T., Nagano, Y., Yokode, M., Ishii, K., Kumi, N., Ooshima, A., Yoshida, H. & Kawai, C. (1987) Proc. Natl. Acad. Sci. U.S.A. 84, 5928-5931
  3. Wilkins, G. M. & Leake, D. S. (1990) Biochem. Soc. Trans. 18, 1170-1771

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Authors
Smith, C., Mitchinson, M. J., Aruoma, O. I., & Halliwell, B.
Affiliations
  • King's College London (GB)
  • University of Cambridge (GB)
Venue
Biochemical Journal
Published
1992-09-15
Volume
286
Issue
3
Pages
901-905
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W1516636175
Cited by
455
References
40
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 4 · 2018: 2 · 2017: 8 · 2016: 7 · 2015: 6 · 2014: 6 · 2013: 7 · 2012: 7
FWCI
17.32
Type
journal article
Language
en
Open access
Locations
  • Biochemical Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
lipid peroxidation, hydroxyl radicals, atherosclerosis, atherosclerotic plaque, iron, copper, pro-oxidant activity, deferoxamine, LDL oxidation, vitamin C, hydrogen peroxide, abdominal aorta, rat liver microsomes
MeSH terms
Animals, Arteriosclerosis, Cations, Copper, Deferoxamine, Humans, Hydrogen Peroxide, Hydroxides, Iron, Microsomes, Liver, Spectrophotometry, Atomic, Lipid Peroxidation, Hydroxyl Radical, Rats

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