Biology ETDs
Publication Date
8-2-1968
Abstract
Tritiated water was employed to study selective absorption and retention of water by different tissues of laboratory rats and C. lateralis. Control (hydrated) and water deprived (dehydrated) animals of both species were studied. Tissues analyzed included large tissues capable of water storage (skin, blood, muscle, liver, white fat) and tissues involved in exchange of water with the environment (small intestine, kidney, lung). The data demonstrated considerable variability in tritium contents, both in different tissues of the same animal, and in the same tissues of different animals of the same group. There appeared to be no selective uptake nor retention of tritiated water by tissues under any experimental condition. Dehydrated animals retained tritium much more than did control animals. In both species the increased retention of tritium appeared to have been a result of responses of the whole organism, and not to retention by any particular tissue. During acute negative water balance, laboratory rats were observed to catabolize white fat tissue for energy and water. Under the same conditions C. lateralis catabolized skeletal muscle. Calculations demonstrated that net water is gained during muscle oxidation, whereas net water is lost during white fat oxidation.
Language
English
Document Type
Dissertation
Degree Name
Biology
Level of Degree
Doctoral
Department Name
UNM Biology Department
First Committee Member (Chair)
Marvin LeRoy Riedesel
Second Committee Member
Clifford Smeed Crawford
Third Committee Member
Martin William Fleck
Fourth Committee Member
Bruce David West
Recommended Citation
Bintz, Gary L.. "Uptake And Retention Of Tritiated Water By Tissues Of Laboratory Rats And Citellus Lateralis.." (1968). https://digitalrepository.unm.edu/biol_etds/609
