Chloride transport in red blood cells of lamprey Lampetra fluviatilis: evidence for a novel anion-exchange system.

The existence of a furosemide-sensitive Cl- transport pathway activated by external Ca2+ and Mg2+ has been demonstrated previously in studies of Cl- influx across the lamprey erythrocyte membrane. The aim of the present study was to characterize further specific Cl- transport pathways, especially those involved in Cl- efflux, in the red blood cell membrane of Lampetra fluviatilis. Cl- efflux was inhibited by 0.

Evidence for stimulation of the K-Cl cotransport system by phenazine methosulfate.

The effects of phenazine methosulfate (PMS), a known generator of oxygen free radicals, on ion transport in human erythrocytes were studied. The treatment of the red blood cells with 0.1-0.