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Titolo:
Morphological and metabolic changes in common carp, Cyprinus carpio, during short-term copper exposure: Interactions between Cu2+ and plasma cortisolelevation
Autore:
De Boeck, G; Vlaeminck, A; Balm, PHM; Lock, RAC; De Wachter, B; Blust, R;
Indirizzi:
Univ Antwerp, RUCA, Dept Biol, B-2020 Antwerp, Belgium Univ Antwerp Antwerp Belgium B-2020 , Dept Biol, B-2020 Antwerp, Belgium Catholic Univ Nijmegen, Dept Anim Physiol, NL-6525 ED Nijmegen, Netherlands Catholic Univ Nijmegen Nijmegen Netherlands NL-6525 ED egen, Netherlands
Titolo Testata:
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
fascicolo: 2, volume: 20, anno: 2001,
pagine: 374 - 381
SICI:
0730-7268(200102)20:2<374:MAMCIC>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
TILAPIA OREOCHROMIS-MOSSAMBICUS; JUVENILE RAINBOW-TROUT; CHLORIDE CELLS; ONCORHYNCHUS-MYKISS; SALMO-GAIRDNERI; FRESH-WATER; K+-ATPASE; ENERGY-METABOLISM; NA+/K+-ATPASE; GILL;
Keywords:
Cyprinus carpio; fish; cortisol; copper; chloride cells;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: De Boeck, G Univ Antwerp, RUCA, Dept Biol, Groenenborgerlaan 171, B-2020 Antwerp, Belgium Univ Antwerp Groenenborgerlaan 171 Antwerp Belgium B-2020 ium
Citazione:
G. De Boeck et al., "Morphological and metabolic changes in common carp, Cyprinus carpio, during short-term copper exposure: Interactions between Cu2+ and plasma cortisolelevation", ENV TOX CH, 20(2), 2001, pp. 374-381

Abstract

The effects of increased endogenous cortisol levels were compared with those of sublethal copper exposure in the freshwater common carp, Cyprinus carpio. Fish were exposed to either increased levels of endogenous cortisol (200 ng/ml) or sublethal copper (1.9 muM) alone or were pretreated by elevating plasma cortisol levels prior to copper exposure to assess whether interactions between both treatments occurred. Effects induced by increased cortisol levels included increased Na+/K+-adenosine triphosphate (ATPase) activity and increased plasma Na+ and plasma osmolarity, while copper exposure induced anaerobic metabolism, gill damage, decreasing Na+/K+-ATPase activity,decreasing plasma ion levels, and blood thickening. Pretreatment of copper-exposed fish with cortisol partially protected these fish by reducing the copper-induced decrease in Na+/K+-ATPase activity. Overall, the results obtained in this study argue against a major role for cortisol as an intermediate for the toxic effects of copper.

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Documento generato il 29/03/20 alle ore 15:02:41