Abstract
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 of immature cells—reticulocytes, there was a statistically significant increase of Na,K-ATPase and Ca-ATPase activities in the whole erythrocytes and in their membrane preparations—ghosts, the increment of activity in the case of Na,K-ATPase being essentially higher in the whole cells. This indicates the appearance of an enzyme activator inside the erythrocytes. There are also revealed a decrease of firmness of erythrocyte aggregates, a deceleration of spontaneous aggregation, and an increase of index of erythrocyte deformability. The conclusion is made that changes of erythrocyte rheological properties are interconnected with changes of the Na,K-ATPase activity and are aimed at optimization of blood circulation in large vessels and capillary network.
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Original Russian Text © M. N. Maslova, A. M. Kazennov, L. N. Katyukhin, A. V. Novozhilov, E. A. Skverchinskaya, T. V. Tavrovskaya, 2007, published in Zhurnal Evolyutsionnoi Biokhimii i Fiziologii, 2007, Vol. 43, No. 5, pp. 414–418.
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Maslova, M.N., Kazennov, A.M., Katyukhin, L.N. et al. Changes of physiological and biochemical characteristics of rat erythrocytes after blood loss. J Evol Biochem Phys 43, 495–499 (2007). https://doi.org/10.1134/S0022093007050064
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DOI: https://doi.org/10.1134/S0022093007050064