[Relation between ouabain-insensitive differential sodium flux and sodium concentrations in solution].
The dependence of net sodium ion flux on the external sodium concentration was studied under the inhibition of the sodium pump. A steady state balance of sodium ion fluxes occurred at external sodium concentration differing from the calculated one, therefore the existence of a non-diffusion component of sodium ion flux was evident. It was shown that the non-diffusion ouabain-insensitive sodium ion flux consisted of the sodium efflux not connected with chlorine efflux or potassium influx, and the sodium influx connected, perhaps, with potassium efflux.
D000818:Animals; D001693:Biological Transport, Active; D002463:Cell Membrane Permeability / Q000187:drug effects*; D002712:Chlorides / Q000378:metabolism; D004058:Diffusion; D004305:Dose-Response Relationship, Drug; D009132:Muscles / Q000378:metabolism*; D010042:Ouabain / Q000494:pharmacology*; D011188:Potassium / Q000378:metabolism; D011895:Rana ridibunda; D012964:Sodium / Q000378:metabolism* / Q000494:pharmacology; D000254:Sodium-Potassium-Exchanging ATPase / Q000037:antagonists & inhibitors
D002712:Chlorides; D010042:Ouabain; D012964:Sodium; D000254:Sodium-Potassium-Exchanging ATPase; D011188:Potassium
Zavisimost' nechuvstvitel'nykh k uabainu raznostnykh potokov natriia ot kontsentratsii Na v rastvore.