The metabolic effects of prolonged starvation and refeeding in sturgeon and rainbow trout.
Identifieur interne : 000432 ( Main/Merge ); précédent : 000431; suivant : 000433The metabolic effects of prolonged starvation and refeeding in sturgeon and rainbow trout.
Auteurs : Miriam Furné [Espagne] ; Amalia E. Morales ; Cristina E. Trenzado ; Manuel García-Gallego ; M. Carmen Hidalgo ; Alberto Domezain ; Ana Sanz RusSource :
- Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology [ 1432-136X ] ; 2012.
English descriptors
- KwdEn :
- Animals, Cholesterol (blood), Eating (physiology), Enzymes (metabolism), Fishes (metabolism), Fishes (physiology), Glycogen (metabolism), Ketone Bodies (metabolism), Lipid Metabolism, Liver (enzymology), Liver (metabolism), Muscle, Skeletal (enzymology), Muscle, Skeletal (metabolism), Oncorhynchus mykiss (metabolism), Species Specificity, Starvation.
- MESH :
- chemical , blood : Cholesterol.
- chemical , metabolism : Enzymes, Glycogen, Ketone Bodies.
- enzymology : Liver, Muscle, Skeletal.
- metabolism : Fishes, Liver, Muscle, Skeletal, Oncorhynchus mykiss.
- physiology : Eating, Fishes.
- Animals, Lipid Metabolism, Species Specificity, Starvation.
Abstract
The present study examines the particular metabolic strategies of the sturgeon Acipenser naccarii in facing a period of prolonged starvation (72 days) and subsequent refeeding (60 days) compared to the trout Oncorhynchus mykiss response under similar conditions. Plasma metabolites, endogenous reserves, and the activity of intermediate enzymes in liver and white muscle were evaluated. This study shows the mobilization of tissue reserves during a starvation period in both species with an associated enzymatic response. The sturgeon displayed an early increase in hepatic glycolysis during starvation. The trout preferentially used lactate for gluconeogenesis in liver and white muscle. The sturgeon had higher lipid-degradation capacity and greater synthesis of hepatic ketone bodies than the trout, although this latter species also showed strong synthesis of ketone bodies during starvation. During refeeding, the metabolic activity present before starvation was recovered in both fish, with a reestablishment of tissue reserves, plasmatic parameters (glucemia and cholesterol), and enzymatic activities in the liver and muscle. A compensatory effect in enzymes regarding lipids, ketone bodies, and oxidative metabolism was displayed in the liver of both species. There are metabolic differences between sturgeon and trout that support the contention that the sturgeon has common characteristics with elasmobranchs and teleosts.
DOI: 10.1007/s00360-011-0596-9
PubMed: 21698525
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Morales</name></author><author><name sortKey="Trenzado, Cristina E" sort="Trenzado, Cristina E" uniqKey="Trenzado C" first="Cristina E" last="Trenzado">Cristina E. Trenzado</name></author><author><name sortKey="Garcia Gallego, Manuel" sort="Garcia Gallego, Manuel" uniqKey="Garcia Gallego M" first="Manuel" last="García-Gallego">Manuel García-Gallego</name></author><author><name sortKey="Carmen Hidalgo, M" sort="Carmen Hidalgo, M" uniqKey="Carmen Hidalgo M" first="M" last="Carmen Hidalgo">M. Carmen Hidalgo</name></author><author><name sortKey="Domezain, Alberto" sort="Domezain, Alberto" uniqKey="Domezain A" first="Alberto" last="Domezain">Alberto Domezain</name></author><author><name sortKey="Sanz Rus, Ana" sort="Sanz Rus, Ana" uniqKey="Sanz Rus A" first="Ana" last="Sanz Rus">Ana Sanz Rus</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:21698525</idno><idno type="pmid">21698525</idno><idno type="doi">10.1007/s00360-011-0596-9</idno><idno type="wicri:Area/PubMed/Corpus">000328</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000328</idno><idno type="wicri:Area/PubMed/Curation">000328</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000328</idno><idno type="wicri:Area/PubMed/Checkpoint">000328</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000328</idno><idno type="wicri:Area/Ncbi/Merge">000386</idno><idno type="wicri:Area/Ncbi/Curation">000386</idno><idno type="wicri:Area/Ncbi/Checkpoint">000386</idno><idno type="wicri:Area/Main/Merge">000432</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The metabolic effects of prolonged starvation and refeeding in sturgeon and rainbow trout.</title><author><name sortKey="Furne, Miriam" sort="Furne, Miriam" uniqKey="Furne M" first="Miriam" last="Furné">Miriam Furné</name><affiliation wicri:level="4"><nlm:affiliation>Dpt. Biología Animal, Facultad de Ciencias, Campus Fuentenueva, Universidad de Granada, 18071, Granada, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Dpt. Biología Animal, Facultad de Ciencias, Campus Fuentenueva, Universidad de Granada, 18071, 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><author><name sortKey="Morales, Amalia E" sort="Morales, Amalia E" uniqKey="Morales A" first="Amalia E" last="Morales">Amalia E. Morales</name></author><author><name sortKey="Trenzado, Cristina E" sort="Trenzado, Cristina E" uniqKey="Trenzado C" first="Cristina E" last="Trenzado">Cristina E. Trenzado</name></author><author><name sortKey="Garcia Gallego, Manuel" sort="Garcia Gallego, Manuel" uniqKey="Garcia Gallego M" first="Manuel" last="García-Gallego">Manuel García-Gallego</name></author><author><name sortKey="Carmen Hidalgo, M" sort="Carmen Hidalgo, M" uniqKey="Carmen Hidalgo M" first="M" last="Carmen Hidalgo">M. Carmen Hidalgo</name></author><author><name sortKey="Domezain, Alberto" sort="Domezain, Alberto" uniqKey="Domezain A" first="Alberto" last="Domezain">Alberto Domezain</name></author><author><name sortKey="Sanz Rus, Ana" sort="Sanz Rus, Ana" uniqKey="Sanz Rus A" first="Ana" last="Sanz Rus">Ana Sanz Rus</name></author></analytic><series><title level="j">Journal of comparative physiology. 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Plasma metabolites, endogenous reserves, and the activity of intermediate enzymes in liver and white muscle were evaluated. This study shows the mobilization of tissue reserves during a starvation period in both species with an associated enzymatic response. The sturgeon displayed an early increase in hepatic glycolysis during starvation. The trout preferentially used lactate for gluconeogenesis in liver and white muscle. The sturgeon had higher lipid-degradation capacity and greater synthesis of hepatic ketone bodies than the trout, although this latter species also showed strong synthesis of ketone bodies during starvation. During refeeding, the metabolic activity present before starvation was recovered in both fish, with a reestablishment of tissue reserves, plasmatic parameters (glucemia and cholesterol), and enzymatic activities in the liver and muscle. A compensatory effect in enzymes regarding lipids, ketone bodies, and oxidative metabolism was displayed in the liver of both species. There are metabolic differences between sturgeon and trout that support the contention that the sturgeon has common characteristics with elasmobranchs and teleosts.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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