Phospholipids of liver cell nuclei during hibernation of Yakutian ground squirrel.
In hibernating Yakutian ground squirrels S. undulatus, the content of total phospholipids in the nuclei of liver increased by 40% compared to that in animals in summer. In torpid state, the amount of sphingomyelin increased almost 8 times; phosphatidylserine, 7 times; and cardiolipin, 4 times. In active "winter" ground squirrels, the amount of sphingomyelin, phosphatidylserine, and cardiolipin decreased compared to the hibernating individuals but remained high compared to the "summer" ones. The torpor state did not affect the amount of lysophosphatidylcholine and phosphatidylinositol.
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia. ikolomizeva2@yandex.ru.
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Lakhina
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia.
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Markevich
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia.
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Zakharova
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia.
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Afanasyev
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia.
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Kolomiytseva
Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 2, Pushchino, Moscow oblast, 142290, Russia.
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Fesenko
D000704:Analysis of Variance; D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism*; D005434:Flow Cytometry; D006605:Hibernation / Q000502:physiology*; D008099:Liver / Q000166:cytology / Q000378:metabolism*; D010743:Phospholipids / Q000378:metabolism*; D012589:Sciuridae / Q000378:metabolism*; D012621:Seasons
D010743:Phospholipids