Cholinergic stimulation of glucose transport in human erythrocytes

The effects of cholinergic stimulation on glucose equilibrium exchange rate have been studied in human erythrocytes. Carbamylcholine increases in V of equilibrium exchange by 20% but has no significant effect on Km. The cholinergic effect is abolished by the muscarinic antagonist atropine or by alterations in intracellular calcium concentrations induced by the calcium ionophore A23187.