Modulation of Na+ transport systems in Wistar rat erythrocytes by excess dietary Na+ intake

Plasma Na+, erythrocyte Na+ content and the activity of Na+ transport systems of red cells were measured in Wistar rat fed a normal or high Na+ diet. Net Na+ and K+ fluxes of erythrocytes were also measured in the presence of plasma of rats fed with excess Na+. Na+−K+ cotransport and passive Na+ permeability were increased. Erythrocyte Na+ content was… (More)