Oxidative stress parameters during starvation and refeeding periods in Adriatic sturgeon (Acipenser naccarii) and rainbow trout (Oncorhynchus mykiss)
Identifieur interne : 000956 ( Main/Merge ); précédent : 000955; suivant : 000957Oxidative stress parameters during starvation and refeeding periods in Adriatic sturgeon (Acipenser naccarii) and rainbow trout (Oncorhynchus mykiss)
Auteurs : M. Furné [Espagne] ; M. García-Gallego [Espagne] ; M. C. Hidalgo [Espagne] ; A. E. Morales [Espagne] ; A. Domezain [Espagne] ; J. Domezain [Espagne] ; A. Sanz [Espagne]Source :
- Aquaculture Nutrition [ 1353-5773 ] ; 2009-12.
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Abstract
This work analyses the changes in the redox balance in two fish species: Adriatic sturgeon (Acipenser naccarii) and rainbow trout (Oncorhynchus mykiss) during starvation and refeeding period. The starvation period raised the lipid peroxidation (thiobarbituric‐acid‐reacting substances) levels in liver and blood, while a decline occurred in the antioxidant enzymatic activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and glutathione reductase (GR) in both fish species. In liver, after the refeeding period, SOD activity recovered in both species, whereas CAT activity recovered only in trout. Furthermore, in both tissues of the two species, the lipid peroxidation levels remained high after 2 months of refeeding. In white muscle and heart, the lipid peroxidation levels indicate that these tissues did not undergo oxidative stress during the 72‐day period. During starvation, in the muscle of both fish the fall in the lipid peroxidation level coincided with a rise in CAT, GPX and GR. The refeeding period in this tissue raised the lipid peroxidation level, and the enzymatic activities reached the values of the first point of starvation. In heart, no oxidative damage was detected during starvation in either species. The CAT and SOD activities increased during the starvation period only in trout.
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DOI: 10.1111/j.1365-2095.2008.00626.x
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Domezain</name></author><author><name sortKey="Domezain, J" sort="Domezain, J" uniqKey="Domezain J" first="J." last="Domezain">J. Domezain</name></author><author><name sortKey="Sanz, A" sort="Sanz, A" uniqKey="Sanz A" first="A." last="Sanz">A. 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Sanz</name><affiliation wicri:level="4"><country xml:lang="fr">Espagne</country><wicri:regionArea> Department of Biología Animal, Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva, Granada</wicri:regionArea><orgName type="university">Université de Grenade</orgName><placeName><settlement type="city">Grenade (Espagne)</settlement><region nuts="2" type="region">Andalousie</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Aquaculture Nutrition</title><idno type="ISSN">1353-5773</idno><idno type="eISSN">1365-2095</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2009-12">2009-12</date><biblScope unit="volume">15</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="587">587</biblScope><biblScope unit="page" to="595">595</biblScope></imprint><idno type="ISSN">1353-5773</idno></series><idno type="istex">93D96FECD197352F9EC9E97549C3326A2306CB85</idno><idno type="DOI">10.1111/j.1365-2095.2008.00626.x</idno><idno type="ArticleID">ANU626</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1353-5773</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser naccarii</term><term>Oncorhynchus mykiss</term><term>antioxidant enzymes</term><term>lipid peroxidation</term><term>oxidative stress</term><term>starvation</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This work analyses the changes in the redox balance in two fish species: Adriatic sturgeon (Acipenser naccarii) and rainbow trout (Oncorhynchus mykiss) during starvation and refeeding period. The starvation period raised the lipid peroxidation (thiobarbituric‐acid‐reacting substances) levels in liver and blood, while a decline occurred in the antioxidant enzymatic activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and glutathione reductase (GR) in both fish species. In liver, after the refeeding period, SOD activity recovered in both species, whereas CAT activity recovered only in trout. Furthermore, in both tissues of the two species, the lipid peroxidation levels remained high after 2 months of refeeding. In white muscle and heart, the lipid peroxidation levels indicate that these tissues did not undergo oxidative stress during the 72‐day period. During starvation, in the muscle of both fish the fall in the lipid peroxidation level coincided with a rise in CAT, GPX and GR. The refeeding period in this tissue raised the lipid peroxidation level, and the enzymatic activities reached the values of the first point of starvation. In heart, no oxidative damage was detected during starvation in either species. The CAT and SOD activities increased during the starvation period only in trout.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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