[Changes in calcium ion binding and characteristics of Na+, K+-ATPase functioning in erythrocytes in the presence of hypertension].

A greater amount of calcium is removed with the aid of EDTA from the erythrocyte membranes of patients with hypertensive disease than from erythrocytes of persons with a normal arterial blood pressure. When isotonic MgCl2 was used the amount of calcium removed from the erythrocytic membrane was equal in both groups. The activity of Na-K-ATP-ase in the membrane of reconstituted erythrocytes increased with the action of calcium ions in the patients with hypertensive disease only half as much as in healthy persons.