Lev N. Katyukhin

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Rheologic properties of erythrocytes and activities of their Ca(2+)-ATPase and Na+, K(+)-ATPase were analyzed together with standard erythrocyte values in seven mammalian species (man, rat, mouse, rabbit, hamster, guinea pig and dog). The number of erythrocytes in the blood of animals investigated correlated inversely with the mean cell volume (MCV) (r =(More)
We developed a method for evaluation of membrane permeability for water based on the analysis of osmotic permeability profiles of red blood cells. Deformability of completely spherulated erythrocytes changed in a dose-dependent manner during formation of artificial water pores (by nystatin) and blocking (by HgCl2) of the existing ones.
In experiments on Wistar rats, dynamics of blood hematologic and rheological parameters was studied from birth to the 3-month age. Results of this study indicate an intensive activity of the red bone marrow anlagen for the first 3 weeks of postnatal ontogenesis. This is manifested as an increase of the number of cells in the erythron system, a change of the(More)
In experiments on Wistar male rats, changes are studied of erythrocyte hematological, biochemical (activities of transport ATPases), and rheological properties (capability for aggregation and deformability) 7 days after bloodletting of 12–15% of the total blood mass. It has been shown that alongside with an elevation of erythrocyte volume and of the number(More)
The comparative studies of rheologic properties of the blood from mammals, which was carded out earlier, using rheometric and filtration methods, have shown a very poor elasticity of the red blood cell membranes in some cattle species and especially in sheep [1-3]. The reasons for this phenomenon have not been elucidated. Since the ektacytometric method had(More)
In experiments on male Wistar rats, in a specially constructed computerized installation, O2 consumption by the animals in comparison with changes of hematological, biochemical, and rheological blood properties is studied after anemization—acute blood loss (12–15% of the total blood mass). An increase of the O2 consumption by the organism and tissues by(More)
In experiments on Wistar rats and guinea pigs, dynamics of blood hematological parameters and of erythrocyte deformability index (DI) was studied from birth to the 3-month age. In rats, significant changes were revealed in the picture of blood for the first month of postnatal ontogenesis. The number of erythrocytes and leukocytes sharply increased, the(More)
Objectives: Immobilization effects on antioxidant enzymes activities, red-ox variables and rheological parameters of erythrocytes were studied. Background: It is not clear to which extent immobilization-induced oxidative stress may affect erythrocyte rheology. Method: Hematological and red-ox variables, erythrocyte antioxidant enzymes activities, and(More)
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