Fisheries
Mojtaba Ghorbanpour delavar; Shayan Ghobadi; Saber Vatandoust; Hamed Manouchehri; Reza Changizi
Abstract
Metal oxide nanoparticles are one of the most widely used compounds among nanoparticles that have wide applications in various fields and thus increase their release into the environment and their potential impact on various organisms, especially aquatic organisms in the aquatic ecosystem. Nanoparticles ...
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Metal oxide nanoparticles are one of the most widely used compounds among nanoparticles that have wide applications in various fields and thus increase their release into the environment and their potential impact on various organisms, especially aquatic organisms in the aquatic ecosystem. Nanoparticles have high chemical and biological reactivity by increasing their surface to volume ratio, which leads to increased production of free radicals. The produced free radicals disrupt the oxidation and natural regeneration of the body's cells and cause oxidative damage in organisms and many diseases. The aim of this study was to investigate the oxidative effect of nickel nanoparticles in Carassius auratus that could open a new horizon in relation to the challenges in aquatic environments. The study groups include the control group and the treatment group with nickel nanoparticles. Each treatment with three replications each included 12 fish per replication. At the end of the period, liver samples were isolated and collected for oxidative damage. Total antioxidant levels, MDA, glutathione and the antioxidant enzymes catalase, glutathione S-transferase and superoxide dismutase were measured in all groups. The results showed that treatment with nickel oxide nanoparticles decreased the level of total anti oxidants and increased the level of MDA in the group treated with nickel oxide nanoparticles. These results showed strong evidence of inducted of cellular oxidative stress induced by exposure to nickel oxide nanoparticles. Also, by comparing the control treatments and the treatment of nickel oxide nanoparticles, it can be concluded that long-term exposure to nickel oxide nanoparticles can aggravate oxidative damage to fish liver tissue.
