期刊
DISEASES OF AQUATIC ORGANISMS
卷 42, 期 3, 页码 233-236出版社
INTER-RESEARCH
DOI: 10.3354/dao042233
关键词
parasite; oxidative stress; lipid peroxidation; fish
The effect of Clinostomum detruncatum metacercaria infection on the activities of the antioxidant enzymes superoxide dismutase and catalase in muscle of the freshwater fish Rhamdia quelen was analyzed. Tert-butyl hydroperoxide-initiated chemiluminescence, a measure of lipid peroxidation, was also investigated. Enzyme activities were similar in infected and uninfected fishes. However, the chemiluminescence was almost 2-fold higher in muscle of infected fishes than in muscle of uninfected ones. These results indicate that parasite infection induces oxidative stress and a higher level of membrane damage in the fish muscle due to an imbalance between pro-oxidants and non-enzymatic antioxidants. Our results suggest that fish response to parasite infection could in could, as in other vertebrates, reactive oxygen intermediates.
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