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Titolo:
Response of enzyme activities and metabolic intermediate concentrations toglucagon administration in hepatopancreas and muscle of carp
Autore:
Sugita, T; Shimeno, S; Ohkubo, Y; Hosokawa, H; Masumoto, T;
Indirizzi:
Kochi Univ, Fac Agr, Nankoku, Kochi 7838502, Japan Kochi Univ Nankoku Kochi Japan 7838502 Agr, Nankoku, Kochi 7838502, Japan
Titolo Testata:
FISHERIES SCIENCE
fascicolo: 1, volume: 67, anno: 2001,
pagine: 157 - 162
SICI:
0919-9268(200102)67:1<157:ROEAAM>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOSPHOFRUCTOKINASE ACTIVITY; DIETARY CARBOHYDRATE; INSULIN; TROUT; GLYCOGENOLYSIS; EXERCISE; PEPTIDE; ORGANS; LIVER;
Keywords:
cyclic AMP; Cyprinus carpio; glucagon; gluconeogenesis; glycogen phosphorylase; glycogenolysis; glycolysis; phosphofructokinase;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Shimeno, S Kochi Univ, Fac Agr, Nankoku, Kochi 7838502, Japan Kochi Univ Nankoku Kochi Japan 7838502 u, Kochi 7838502, Japan
Citazione:
T. Sugita et al., "Response of enzyme activities and metabolic intermediate concentrations toglucagon administration in hepatopancreas and muscle of carp", FISHERIES S, 67(1), 2001, pp. 157-162

Abstract

experiment was carried out to investigate the effect of an intraperitonealglucagon administration (60 mug/kg) on enzyme activities and metabolic intermediate concentrations in the hepatopancreas and muscle of common carp Cyprinus carpio. In the hepatopancreas, glycogen phosphorylase a activity together with cyclic adenosine-5 ' -monophosphate (AMP) concentration were significantly increased, and glycogen content was significantly decreased, at 1 h after the glucagon administration. Additionally, glucose-6-phosphatase and fructose-l,6-bisphosphatase activities as well as plasma glucose and free amino acid concentrations were increased after its administration. In the muscle, glucose and glycogen contents increased after the administration. Furthermore, the hormone administration also increased phosphofructokinaseactivity together with fructose-6phosphate, AMP, and adenosine-5 ' -diphosphate concentrations and decreased adenosine-5 ' -triphosphate concentration. From 3 h after the administration, many parameter concentrations in bothtissues showed a tendency to recover to the initial levels. These results suggest that glucagon administration enhanced glycogenolysis and gluconeogenesis in the hepatopancreas, and as a consequence, glucose was released into the bloodstream. The blood glucose seems to be metabolized through enhanced glycolysis and glycogenesis in the muscle.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 23:06:31