Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
EFFECTS OF EXHAUSTING EXERCISE AND CATECHOLAMINES ON K-BASE STATUS AND BLOOD RESPIRATORY PROPERTIES IN CARP( BALANCE, ACID)
Autore:
KNUDSEN PK; JENSEN FB;
Indirizzi:
ODENSE UNIV,INST BIOL,CAMPUSVEJ 55 DK-5230 ODENSE M DENMARK
Titolo Testata:
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
fascicolo: 1, volume: 119, anno: 1998,
pagine: 301 - 307
SICI:
1095-6433(1998)119:1<301:EOEEAC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
TROUT SALMO-GAIRDNERI; RAINBOW-TROUT; OXYGEN-TRANSPORT; STRENUOUS EXERCISE; ADRENERGIC RESPONSES; CYPRINUS-CARPIO; ERYTHROCYTE-K+; TINCA-TINCA; RECOVERY; MUSCLE;
Keywords:
ACID-BASE STATUS; ADRENALINE INJECTION; ADRENOCEPTOR BLOCKADE; EXERCISE; INTRA-AND EXTRACELLULAR POTASSIUM; PHENTOLAMINE; PROPRANOLOL; RECOVERY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
P.K. Knudsen e F.B. Jensen, "EFFECTS OF EXHAUSTING EXERCISE AND CATECHOLAMINES ON K-BASE STATUS AND BLOOD RESPIRATORY PROPERTIES IN CARP( BALANCE, ACID)", Comparative biochemistry and physiology. Part A, Molecular & integrative physiology, 119(1), 1998, pp. 301-307

Abstract

The potential role of adrenergic mechanisms in the recovery oi potassium balance and acid-base status following a 5 min of exhausting exercise was studied in carp. The extracellular metabolic H+ load after exercise matched the lactate load, suggesting similar release rates of Hand lactate from white muscle. Blockage of alpha-adrenoceptors by phentolamine or beta-adrenoceptors by propranolol neither influenced absolute magnitudes nor recovery kinetics of extracellular H+ and lactate loads. The arterial oxygen tension increased following exercise, but blood oxygen transport was not improved via a red cell beta-adrenergic response or modulation of the red cell nucleoside triphosphate content. Exercise induced an increase in extracellular [K+] which was corrected within 30-60 min of recovery. The recovery of K+ balance was not influenced by blockage of adrenergic receptors. Red cell [K+] changed only insignificantly following exercise, whereby a possible function of the red cells as a temporary depository for K+ during the extracellular hyperkalaemia could not be established. The minimal influence of catecholamines on the measured parameters during recovery from exercise was supported by an absence of change in these parameters upon adrenaline injection in resting carp. (C) 1998 Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 08:26:19