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Biological Activities of Reactive Oxygen and Nitrogen Species: Oxidative Stress versus Signal Transduction

Open access
Weidinger, Adelheid, Kozlov, Andrey·2015·Biomolecules

Abstract

In the past, reactive oxygen and nitrogen species (RONS) were shown to cause oxidative damage to biomolecules, contributing to the development of a variety of diseases. However, recent evidence has suggested that intracellular RONS are an important component of intracellular signaling cascades. The aim of this review was to consolidate old and new ideas on the chemical, physiological and pathological role of RONS for a better understanding of their properties and specific activities. Critical consideration of the literature reveals that deleterious effects do not appear if only one primary species (superoxide radical, nitric oxide) is present in a biological system, even at high concentrations. The prerequisite of deleterious effects is the formation of highly reactive secondary species (hydroxyl radical, peroxynitrite), emerging exclusively upon reaction with another primary species or a transition metal. The secondary species are toxic, not well controlled, causing irreversible damage to all classes of biomolecules. In contrast, primary RONS are well controlled (superoxide dismutase, catalase), and their reactions with biomolecules are reversible, making them ideal for physiological/pathophysiological intracellular signaling. We assume that whether RONS have a signal transducing or damaging effect is primarily defined by their quality, being primary or secondary RONS, and only secondly by their quantity.

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Metadata

Authors
Weidinger, A., & Kozlov, A.
Venue
Biomolecules
Publisher
MDPI AG
Published
2015-04-15
Volume
5
Issue
2
Pages
472-484
ISSN
2218-273X (ISSN-L)
OpenAlex
W1999713485
Cited by
646
References
15
FWCI
18.14
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Biological Activities of Reactive Oxygen and Nitrogen Species: Oxidative Stress versus Signal Transduction. https://app.cochat.ai/papers/10.3390/biom5020472
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Weidinger, A., & Kozlov, A. (2015). Biological Activities of Reactive Oxygen and Nitrogen Species: Oxidative Stress versus Signal Transduction. Biomolecules. https://doi.org/10.3390/biom5020472

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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