|
DAO
Home
Editors
Forthcoming
Information
Journals
Home
MEPS
AME
CR
DAO
ESEP
Search
Subscribe
Book Series
EE Books
Top Books
Order
Discussion Forums
Home
Research
Endangered Species Programs
Institutions
International Ecology Institute
Eco-Ethics International Union
Foundation
Otto Kinne Foundation
| |
DAO 42:233-236 (2000)
|
Abstract
|
Lipid peroxidation induced by Clinostomum detruncatum in muscle of the freshwater fish Rhamdia quelen
A. R. R. Belló1, E. Fortes1, A. Belló-Klein2,*, A. A. Belló2, S. F. Llesuy2, R. B. Robaldo3, A. Bianchini3
1Departamento de Parasitologia and
2Departamento de Fisiologia, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, 90050-170, Porto Alegre-RS, Brazil
3Departamento de Ciências Fisiológicas, Fundação Universidade Federal do Rio Grande, R. Eng. Alfredo Huch, 475, 96201-900, Rio Grande-RS, Brazil
*Corresponding author. E-mail: belklein@vortex.ufrgs.br
ABSTRACT: 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 involve, as in other vertebrates, reactive oxygen intermediates.
KEY WORDS: Parasite · Oxidative stress · Lipid peroxidation · Fish
Full text in pdf format
Published in DAO Vol.
42, No. 3
(2000) on September 28
ISSN: 0177-5103.
Copyright © Inter-Research, Oldendorf/Luhe, 2000
|
