Journal
IRANIAN JOURNAL OF FISHERIES SCIENCES
Volume 20, Issue 3, Pages 741-760Publisher
IRANIAN FISHERIES SCIENCE RESEARCH INST-IFSRI
DOI: 10.22092/ijfs.2021.124052
Keywords
ZnO-NPs; Gene expression; Histopathology; Toxicity; Goldfish
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Funding
- Gonbad University of Agricultural Sciences and Natural Resources
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This study investigated the impact of zinc oxide nanoparticles on goldfish, showing severe lesions in the gill and liver tissues of goldfish after exposure to these nanoparticles. The expression of Hsp70 significantly increased and exhibited a relatively similar pattern in both gill and liver tissues of goldfish, indicating potential health risks and the need for further evaluation of its toxic effects.
In parallel with the increased use of nano-sized metallic materials, the possibility of their release into the environment has increased in recent decades. However, there is not sufficient information on the toxic potential of these materials on different aspects of the life history of aquatic organisms. In this study, we investigated the impact of zinc oxide nanoparticles (ZnO-NPs) on goldfish by studying histopathological alteration and Hsp70 gene expression in gill and liver tissues. The results showed that after exposure to different concentrations of ZnO-NPs, severe lesions were observed in the gill and liver tissues of goldfish. Expression of Hsp70 significantly increased in comparison with the control group and this increase was observed especially in the initial sampling times. Also expression pattern of Hsp70 is relatively similar in gill and liver tissues of goldfish. Based on the results of the present study, ZnO-NPs, as widely used nanoparticles can endanger the health of goldfish and further studies are needed to evaluate its potential toxic effects.
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