Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)

Physiological studies have shown that glucagon is a potential mediator of nonshiveringthermogenesis in birds. The present work was undertaken in order to investigatewhether the observed thermogenesis results from a direct action of glucagon onavian thermoregulatory mechanisms or in fact requires the...

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Autores principales:	M. Slimani, S. El Antri, S.Lazar, H. Barré, Mostafa Khouili, T. Fechtali
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2007
Materias:	Glucagon Norepinephrine Epinephrine Cold Ducklings Biochemistry QD415-436
Acceso en línea:	https://doaj.org/article/4a9d457cd30a47a4ab3eb14dda6299db
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spelling	oai:doaj.org-article:4a9d457cd30a47a4ab3eb14dda6299db2021-12-02T11:25:14ZInvolvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)0250-46851303-829Xhttps://doaj.org/article/4a9d457cd30a47a4ab3eb14dda6299db2007-05-01T00:00:00Zhttp://www.turkjbiochem.com/2007/028.pdfhttps://doaj.org/toc/0250-4685https://doaj.org/toc/1303-829XPhysiological studies have shown that glucagon is a potential mediator of nonshiveringthermogenesis in birds. The present work was undertaken in order to investigatewhether the observed thermogenesis results from a direct action of glucagon onavian thermoregulatory mechanisms or in fact requires the participation of thecatecholamines.We focused our study on the effects of central glucagon on plasma catecholamine andheart rate on cold acclimated and glucagon treated ducklings in cold environment.Our results showed that cold exposure (4 °C) induced an increase of circulatingnorepinephrine in thermoneutrality (42 %) and cold acclimated (43 %) but notsignificantly in glucagon treated, while epinephrine decreased only in thermoneutrality(-45 %). After glucagon injection, circulating epinephrine increased in thermoneutrality(280 %) and CA (516 %), whereas norepinephrine concentrations decreased only inthermoneutral ducklings (-23 %). Plasma norepinephrine and epinephrine remainedunchanged in glucagon treated ducklings. Injection of glucagon caused a decrease inheart rate in thermoneutral duckling whereas it had no effect on cold acclimated andglucagon treated ducklings.The large increase in epinephrine levels in cold acclimated and thermoneutral ducklingsmay be due to a massive release of adrenal catecholamine in response to the conditions.Treatment with glucagon twice daily rendered probably ducks insensitive to the effectof intra-cerebroventricular glucagon injectionM. Slimani,S. El Antri,S.LazarH. Barré,Mostafa Khouili,T. FechtaliDe GruyterarticleGlucagonNorepinephrineEpinephrineColdDucklingsBiochemistryQD415-436ENTürk Biyokimya Dergisi, Vol 32, Iss 1, Pp 28-31 (2007)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glucagon Norepinephrine Epinephrine Cold Ducklings Biochemistry QD415-436
spellingShingle	Glucagon Norepinephrine Epinephrine Cold Ducklings Biochemistry QD415-436 M. Slimani, S. El Antri, S.Lazar H. Barré, Mostafa Khouili, T. Fechtali Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
description	Physiological studies have shown that glucagon is a potential mediator of nonshiveringthermogenesis in birds. The present work was undertaken in order to investigatewhether the observed thermogenesis results from a direct action of glucagon onavian thermoregulatory mechanisms or in fact requires the participation of thecatecholamines.We focused our study on the effects of central glucagon on plasma catecholamine andheart rate on cold acclimated and glucagon treated ducklings in cold environment.Our results showed that cold exposure (4 °C) induced an increase of circulatingnorepinephrine in thermoneutrality (42 %) and cold acclimated (43 %) but notsignificantly in glucagon treated, while epinephrine decreased only in thermoneutrality(-45 %). After glucagon injection, circulating epinephrine increased in thermoneutrality(280 %) and CA (516 %), whereas norepinephrine concentrations decreased only inthermoneutral ducklings (-23 %). Plasma norepinephrine and epinephrine remainedunchanged in glucagon treated ducklings. Injection of glucagon caused a decrease inheart rate in thermoneutral duckling whereas it had no effect on cold acclimated andglucagon treated ducklings.The large increase in epinephrine levels in cold acclimated and thermoneutral ducklingsmay be due to a massive release of adrenal catecholamine in response to the conditions.Treatment with glucagon twice daily rendered probably ducks insensitive to the effectof intra-cerebroventricular glucagon injection
format	article
author	M. Slimani, S. El Antri, S.Lazar H. Barré, Mostafa Khouili, T. Fechtali
author_facet	M. Slimani, S. El Antri, S.Lazar H. Barré, Mostafa Khouili, T. Fechtali
author_sort	M. Slimani,
title	Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
title_short	Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
title_full	Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
title_fullStr	Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
title_full_unstemmed	Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)
title_sort	involvement of the catecholamine in glucagon-induced thermogenesis in duckling (carina moschata)
publisher	De Gruyter
publishDate	2007
url	https://doaj.org/article/4a9d457cd30a47a4ab3eb14dda6299db
work_keys_str_mv	AT mslimani involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata AT selantri involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata AT slazar involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata AT hbarre involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata AT mostafakhouili involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata AT tfechtali involvementofthecatecholamineinglucagoninducedthermogenesisinducklingcarinamoschata
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Involvement of the Catecholamine in Glucagon-Induced Thermogenesis in Duckling (Carina Moschata)

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