[Tissue reaction of rats of different ages to xerophagia].
Studies have been made on the ionic and osmotic indices of the blood, as well as on the content of water and electrolytes in different tissues of rats from 2 age groups (adult animals over 90 days and 18-24 days old ones) in the course of water deprivation within 7 days. It was demonstrated that concentration of sodium in and osmolarity of the blood plasma increased earlier and to a greater extent in young animals as compared to adult ones. In most of the tissues investigated, these changes were accompanied by the increase in the content of electrolytes and water. In the subcutaneous tissue, accumulation of cations and dehydration were observed. Adult rats exhibited mainly ion-accumulating processes in all the tissues investigated, whereas young animals showed mainly shifts in water content of the tissues.
D000375:Aging; D000818:Animals; D001834:Body Water / Q000378:metabolism; D009994:Osmolar Concentration; D011188:Potassium / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D012964:Sodium / Q000378:metabolism; D013997:Time Factors; D014868:Water Deprivation / Q000502:physiology*; D014882:Water-Electrolyte Balance
D012964:Sodium; D011188:Potassium
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