Cited by 555Nitric Oxide and Endothelin EffectsRedox biology and oxidative stressAntioxidant Activity and Oxidative Stress

Nitrogen dioxide and carbonate radical anion: two emerging radicals in biology

Augusto, Ohara, Bonini, Marcelo G., Amanso, Angélica M., Linares, Edlaine, Santos, Célio C.X., De Menezes, Sı́lvia L.·2002·Free Radical Biology and Medicine

Abstract

Nitrogen dioxide and carbonate radical anion have received sporadic attention thus far from biological investigators. However, accumulating data on the biochemical reactions of nitric oxide and its derived oxidants suggest that these radicals may play a role in various pathophysiological processes. These potential roles are also indicated by recent studies on the high efficiency of urate and nitroxides in protecting cells and whole animals against the injury associated with conditions of excessive nitric oxide production. The high protective effects of these antioxidants are incompletely defined at the mechanistic level but some of them can be explained by their efficiency in scavenging peroxynitrite-derived radicals, particularly nitrogen dioxide and carbonate radical anion. In this review, we provide a framework for this hypothesis and discuss the potential sources and properties of these radicals that are likely to become increasingly recognized as important mediators of biological processes.

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Crossref · 10.1016/s0891-5849(02)00786-4

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177 of 177 references verified0 citation errors · 0 not checkable

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  • Other formation routes of NO2· include the reactions of nitrite with oxygenated Hb and peroxynitrite decomposition.

    “Other formation routes include the reactions of nitrite with oxygenated Hb (501) and peroxynitrite decomposition (46).”
  • Several examples of biological oxidations mediated by the bicarbonate anion, in particular through interactions with peroxynitrite, have been reported.

    “Several examples of biological oxidations mediated by the bicarbonate anion, in particular through interactions with peroxynitrite, have been reported in the literature [e.g., (46, 635, 918, 1056)].”

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Authors
Augusto, O., Bonini, M. G., Amanso, A. M., Linares, E., Santos, C. C. X., & De Menezes, S. L.
Affiliations
Universidade de São Paulo (BR)
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2002-05
Volume
32
Issue
9
Pages
841-859
ISSN
0891-5849 (ISSN-L)
OpenAlex
W1972989329
Cited by
555
References
177
Citations by year
2026: 6 · 2025: 17 · 2024: 19 · 2023: 23 · 2022: 20 · 2021: 10 · 2020: 23 · 2019: 27 · 2018: 31 · 2017: 18 · 2016: 27 · 2015: 31 · 2014: 27 · 2013: 24 · 2012: 39
FWCI
2.94
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Financiadora de Estudos e Projetos
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
nitrogen dioxide, carbonate radical anion, nitric oxide, peroxynitrite, uric acid, nitroxide radicals, antioxidant defense, free radical scavenging, pathophysiology
MeSH terms
Carbonates, Free Radicals, Nitrogen Dioxide, Oxidation-Reduction, Tyrosine, Reactive Oxygen Species, Peroxynitrous Acid

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