[Effect of vasodilator preparations on the ATPase activity of the erythrocyte membranes of rabbits with experimental vascular pathology].

Experiments on rabbits with pituitrin hypertension have demonstrated activation of Na+, K+-ATPase of red cell membranes. Meanwhile ATPase activity declined in vasorenal hypertension. The vasodilatory drugs (papaverine, pentamine, euphylline, nicotinic acid) administered in courses normalized both the activity of transport ATPases of cell membranes and carbohydrate metabolism of blood vessels, which was disturbed in experimental vascular pathology.

[Arterial hypertension in renal venous hypertension].

The authors have conducted an experimental study in dogs and shown that a considerable disturbance of blood flow in renal veins can cause stable arterial hypertension.

Effect of erythropoietin on acetylation and phosphorylation of bone marrow histones.

Polyacrylamide gel electrophoresis was used to reveal in the rabbit bone marrow cells 5 main fractions of histone proteins which are present in other eukaryotic cells. The degree of acetylation and phosphorylation increased after erythropoietin injection or exposure to hypoxia. Phosphorylation was enhanced in every fraction.