Journal
FISH PHYSIOLOGY AND BIOCHEMISTRY
Volume 42, Issue 1, Pages 321-333Publisher
SPRINGER
DOI: 10.1007/s10695-015-0140-z
Keywords
Fish; Flavonoid; Antioxidant defenses; Oxidative stress; Gene expression
Categories
Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Fundacao de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERGS-PRONEX)
- Ministry of Fisheries and Aquaculture/Ministry of Science and Technology/FINEP
- INCT ADAPTA-CNPq-FAPEAM
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The effects of adding rutin to the diet (0, 0.15 or 0.30 %) of silver catfish for 21 days on blood parameters, oxidative stress biomarkers and pituitary hormones expression were investigated. Fish that received the diet containing 0.15 % rutin exhibited reduced plasma cortisol levels. The levels of lipid peroxidation were lowered in the all tissues of animals receiving the diet containing rutin. Rutin increased the activity of the superoxide dismutase (SOD), catalase (CAT), nonprotein thiols (NPSH), ascorbic acid content (AA) and total reactive antioxidant potential (TRAP) in the brain; glutathione S-transferase (GST) activity and TRAP in the gills; SOD, CAT and GST activity, NPSH, AA levels and TRAP in the liver; CAT and GST activity and TRAP levels in the kidneys; and glutathione peroxidase activity, NPSH, AA levels and TRAP in the muscle. There were no changes regarding the expression of growth hormone, prolactin and somatolactin in fish fed with the diet containing rutin when compared with the control. The supplementation of rutin to the diet of fish is beneficial because it increases the antioxidant responses of tissues.
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