Cholinesterase Activity and Potassium Permeability in Human Erythrocytes

Abstract
Inhibition of human erythrocyte cholinesterase by physostigmine or diisopropylfluorophosphate, with or without added acetyl choline, had no effect on K loss from cells either at 4[degree] or 37.5[degree]C, or on K re-entry into cells stored 24 hours at 4[degree]C.