Cited by 1,795Environmental Toxicology and EcotoxicologyAntioxidant Activity and Oxidative StressToxic Organic Pollutants Impact

Molecular biomarkers of oxidative stress in aquatic organisms in relation to toxic environmental pollutants

Valavanidis, Athanasios, Vlahogianni, Thomais, Dassenakis, Manos, Scoullos, Michael·2006·Ecotoxicology and Environmental Safety

Abstract

The potential of oxygen free radicals and other reactive oxygen species (ROS) to damage tissues and cellular components, called oxidative stress, in biological systems has become a topic of significant interest for environmental toxicology studies. The balance between prooxidant endogenous and exogenous factors (i.e., environmental pollutants) and antioxidant defenses (enzymatic and nonenzymatic) in biological systems can be used to assess toxic effects under stressful environmental conditions, especially oxidative damage induced by different classes of chemical pollutants. The role of these antioxidant systems and their sensitivity can be of great importance in environmental toxicology studies. In the past decade, numerous studies on the effects of oxidative stress caused by some environmental pollutants in terrestrial and aquatic species were published. Increased numbers of agricultural and industrial chemicals are entering the aquatic environment and being taken up into tissues of aquatic organisms. Transition metals, polycyclic aromatic hydrocarbons, organochlorine and organophosphate pesticides, polychlorinated biphenyls, dioxins, and other xenobiotics play important roles in the mechanistic aspects of oxidative damage. Such a diverse array of pollutants stimulate a variety of toxicity mechanisms, such as oxidative damage to membrane lipids, DNA, and proteins and changes to antioxidant enzymes. Although there are considerable gaps in our knowledge of cellular damage, response mechanisms, repair processes, and disease etiology in biological systems, free radical reactions and the production of toxic ROS are known to be responsible for a variety of oxidative damages leading to adverse health effects and diseases. In the past decade, mammalian species were used as models for the study of molecular biomarkers of oxidative stress caused by environmental pollutants to elucidate the mechanisms underlying cellular oxidative damage and to study the adverse effects of some environmental pollutants with oxidative potential in chronic exposure and/or sublethal concentrations. This review summarizes current knowledge and advances in the understanding of such oxidative processes in biological systems. This knowledge is extended to specific applications in aquatic organisms because of their sensitivity to oxidative pollutants, their filtration capacity, and their potential for environmental toxicology studies.

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Crossref · 10.1016/j.ecoenv.2005.03.013

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Authors
Valavanidis, A., Vlahogianni, T., Dassenakis, M., & Scoullos, M.
Affiliations
National and Kapodistrian University of Athens (GR)
Corresponding author
Valavanidis, Athanasios
Venue
Ecotoxicology and Environmental Safety
Publisher
Elsevier BV
Published
2006-06
Volume
64
Issue
2
Pages
178-189
ISSN
0147-6513 (ISSN-L)
OpenAlex
W2053471764
Cited by
1,795
References
153
Citations by year
2026: 68 · 2025: 84 · 2024: 124 · 2023: 95 · 2022: 118 · 2021: 114 · 2020: 118 · 2019: 124 · 2018: 127 · 2017: 103 · 2016: 119 · 2015: 123 · 2014: 97 · 2013: 78 · 2012: 81
FWCI
2.33
Type
journal article
Language
en
Open access
closed
Locations
  • Ecotoxicology and Environmental Safety (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
Keywords
oxidative stress, reactive oxygen species, molecular biomarkers, aquatic organisms, environmental pollutants, antioxidant defense, oxidative DNA damage, lipid peroxidation, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorine pesticides, organophosphorus pesticides, dioxins, transition metals, xenobiotics, sublethal toxicity, long-term exposure
MeSH terms
Animals, DNA Damage, Environmental Pollutants, Fishes, Free Radicals, Perciformes, Biomarkers, Reactive Oxygen Species, Oxidative Stress, Bivalvia

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