[Deposition of potassium and water in the brown adipose tissue of cold-adapted rats].
The rats adapted to 0-4 degrees C increased water content in the BAT. The Na and K intracellular contents was unaltered during first month of the adaptation. K content in the BAT was considerably increased by the 10th and 18th weeks of the adaptation. A positive correlation between Na and K contents was revealed in the BAT of both adapted and unadapted rats. The increase of K concentration and the decrease of Na/K ratio suggest that, in prolonged adaptation, the Na-pump power grows more than is necessary for compensation of the high fluxes of cations through the cell membranes in the BAT.
D000222:Adaptation, Physiological; D002001:Adipose Tissue, Brown / Q000378:metabolism*; D000818:Animals; D002463:Cell Membrane Permeability; D003080:Cold Temperature; D011188:Potassium / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D012964:Sodium / Q000378:metabolism; D013997:Time Factors; D014867:Water / Q000378:metabolism*
D014867:Water; D012964:Sodium; D011188:Potassium
Deponirovanie kaliia i vody v buroĭ zhirovoĭ tkani u adaptirovannykh k kholodu krys.