Effects of Nonylphenol-Induced Oxidative Stress in Ovary of Cichlid Fish, <i>Etroplus maculatus</i> (Bloch, 1795)

Author:

Asifa K.P.1,Chitra K.C.1

Affiliation:

1. University of Calicut

Abstract

The present study was designed to evaluate the effects of nonylphenol in the pro-oxidant/ antioxidant system in ovary of the cichlid fish Etroplus maculatus. Fishes were exposed at two sublethal concentrations (one-fifth and one-tenth of LC50) of nonylphenol for 24, 72 and 96 h maintaining control groups. The oxidative stress indices as the activities of antioxidant enzymes, superoxide dismutase, catalase, glutathione reductase along with the levels of hydrogen peroxide generation and lipid peroxidation were monitored in concentration-and time-dependent manner. Activity of superoxide dismutase significantly (P<0.05) increased at both concentrations in time-dependent manner. Meanwhile the activities of catalase and glutathione reductase significantly (P<0.05) decreased after 72 and 96 h of nonylphenol treatment. The levels of hydrogen peroxide generation and lipid peroxidation increased in all treatment groups when compared to controls. The present results demonstrated that the induction of oxidative stress in ovary of fish by the generation of lipid peroxidation could be due to the exposure of environmental contaminant, nonylphenol. Therefore, the observed oxidative stress in ovary can be indicated as a mechanism of toxicity in the fish exposed to nonylphenol.

Publisher

AOA Academic Open Access Ltd.

Subject

General Medicine

Reference22 articles.

1. PARCOM 92/8. Recommendation on nonylphenol-ethoxylates, London, UK. OSPAR Convention, (2000).

2. R. Renner, European bans on surfactant trigger transatlantic debate, Environ. Sci. Technol. 31 (1997) 316–320.

3. J. Brendehaug et al., Toxicity testing and chemical characterisation of produced water—a preliminary study, Environ. Sci. Res. 46 (1992) 245–256.

4. L. Brooke, G. Thursby, Ambient aquatic life water quality criteria for nonylphenol. Washington DC, USA: Report for the United States EPA, Office of Water, Office of Science and Technology, (2005).

5. A. Soares et al., Nonylphenol in the environment: A critical review on occurrence, fate, toxicity and treatment in wastewaters, Environ. Int. 34 (2008) 1033-1049.

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