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There was studied an influence of artificial hypobiosis in the conditions of hypoxia-hypercarnia in rats on the quantity of neutral lipids, phospholipids and its fatty acids in membranes structures of cardiomyocytes (microsomes and internal membranes of mitochondria). The received results – the content of lipids, individual phospholipids, cholesterol testify to the modification of lipid component of cardiomyocytes mitochondria internal membrane (less the microsomal fraction) that characterizes modulation of cellular membranes structural-functional state. There was noticed the possibility of attraction of membrane phospholipids (sphingomyelin, phosphatidylserine and phosphatidylinositol) to the signal ways activation at hypobiosis. There was revealed redistribution of fatty acids of mitochondria internal membrane at hypobiosis that leads to increase of the level of unsaturated fatty acids. There was noticed the possibility of participation of monoenic unsaturated fatty acids in protection of cellular structures from oxidizing stress and increase of the content of arachidonic and docosahexaenoic acids – precursors of biologically active substances – can be connected with its attraction to regulatory systems at hypobiosis. There is presupposed that the state of artificial hypobiosis is characterized with stress-reaction that leads to optimal reconstruction of lipid and fatty acid content of membrane lipids directed on support of cardiomyocytes functional activity.

LIPIDS OF CARDIOMYOCYTES MEMBRANES STRUCTURES IN RATS AT HYPOBIOSIS