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Titolo:
Rapid action of glucocorticoids on branchial ATPase activity in Oreochromis mossambicus: an in vivo and in vitro study
Autore:
Sunny, F; Oommen, OV;
Indirizzi:
Univ Kerala, Dept Zool, Endocrinol & Biochem Div, Trivandrum 695581, Kerala, India Univ Kerala Trivandrum Kerala India 695581 ivandrum 695581, Kerala, India
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
fascicolo: 3, volume: 130, anno: 2001,
pagine: 323 - 330
SICI:
1096-4959(200110)130:3<323:RAOGOB>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYPOOSMOREGULATORY MECHANISMS; INTRACELLULAR CALCIUM; SEAWATER ADAPTATION; IN-VITRO; CORTISOL; ALDOSTERONE; MEMBRANE; TILAPIA; DEXAMETHASONE; TELEOST;
Keywords:
Na+-K+ ATPase; Ca2+ ATPase; cortisol; corticosterone; non-genomic action; glucocorticoids; rapid action; Oreochromis mossambicus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Oommen, OV Univ Kerala, Dept Zool, Endocrinol & Biochem Div, Trivandrum 695581, Kerala, India Univ Kerala Trivandrum Kerala India 695581 5581, Kerala, India
Citazione:
F. Sunny e O.V. Oommen, "Rapid action of glucocorticoids on branchial ATPase activity in Oreochromis mossambicus: an in vivo and in vitro study", COMP BIOC B, 130(3), 2001, pp. 323-330

Abstract

The rapid action of cortisol and corticosterone on branchial Na+-K+ ATPase, Ca2+ ATPase activity and Na+, K+ and Ca2+ ion contents was studied both in vivo and in vitro employing transcription inhibitor actinomycin D in Oreochromis mossambicus. Cortisol and corticosterone administration had significantly increased the activity of branchial Na+-K+ ATPase and Ca2+ ATPase invivo after 30 min of injection, and the trend continued for 60 and 120 minfor cortisol. The ionic contents were also significantly increased after 30 min in vivo. Na+-K+ ATPase activity was significantly increased 5 min after hormone application in the in vitro system. Actinomycin D did not inhibit the effect of glucocorticoids on ATPase activity both in vivo and in vitro. It is concluded from the present study that cortisol and corticosterone produced a rapid stimulatory effect on branchial ATPase activity and ions in O. mossambicus both in vivo and in vitro. This effect could be due to a non-genomic action of these hormones since the enzyme activity was insensitive to actinomycin D. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 07:01:11