Abstract
In the erythrocyte stroma from patients with hereditary spherocytosis, both Mg-ATPase (Na-K-insensitive ATPase) and Na-K-sensitive ATPase activities proved to be much higher than those found in the normal erythrocyte stroma. In cases with paroxysmal nocturnal hemoglobinuria, Mg-ATPase activity tended to be slightly decreased while Na-K-ATPase activity remained normal.
In agreement with the previous papers, a decrease in acetylcholinesterase activity of the erythrocyte stroma was demonstrated only in the cases of paroxysmal nocturnal hemoglobinuria.