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[The role of fatty acids in phospholipids of various organs of white rats in the formation of resistance to deep repeated cooling].

Fatty acid composition was altered in all the rat tissues studied after strong multiple (16 times) supercooling (down to rectal temperature 19 degrees). Content of arachidonic and linoleic acids, which are precursors of prostaglandins, was distinctly increased in phospholipids of myocardium and skeletal muscles as a result of multiple supercooling. At the same time, a ratio of palmitic acid containing in phosphatidylcholine palmitate, was increased in lipid moiety of lung phospholipids, while concentration of arachidonic acid was elevated in liver phospholipids.