[Effect of adrenaline on the influx of Na+ and Cl- in trout (Salmo gairdneri) adapted to seawater].
The effects of adrenaline on the Na+ and Cl- influxes in the seawater adapted trout were studied with the perfused isolated head technique. With 10(-5) M adrenaline in the perfusion fluid, the lamellar influx of Na+ is increased by 60%, while the Cl- influx is inhibited by 90%. This catecholamine does not modify the extra-lamellar entry of NaCl which passes into the filamental sinus.
D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D002712:Chlorides / Q000378:metabolism*; D004837:Epinephrine / Q000494:pharmacology*; D010477:Perfusion; D012487:Salmonidae / Q000502:physiology*; D012623:Seawater; D012964:Sodium / Q000378:metabolism*; D014337:Trout / Q000502:physiology*; D014882:Water-Electrolyte Balance / Q000187:drug effects*
D002712:Chlorides; D012964:Sodium; D004837:Epinephrine
Action de l'adrénaline sur les flux entrants de Na+ et Cl- chez la truite (Salmo gairdneri) adaptée à l'eau de mer.