[The effect of one-time and repeated starvation on dopamine beta-hydroxylase serum activity in rats of various ages].
The authors used for experiments Wistar strain rats, 5 days old and adult rats, and investigated the activity of plasma dopamine-beta-hydroxylase after exposing the rats to a single 24-hour or repeated 3 X 18-hour fast and fluid deprivation on three consecutive days. They found that in both age groups, in males as well as females, both mentioned types of nutritional stress (deprivation) led to a marked reduction of activity of the plasma level of the mentioned enzyme. This reduction was in both types of fasting roughly equal when expressed in absolute or relative figures. The enzyme activity was assessed by a method described by Kato (4) and is expressed in nmol/l ml plasma/min. The statistical evaluation was made by the Biocybernetic department of the Institute of Physiology, Faculty of General Medicine, Charles University, Prague.
Koudelová
J
J
Fyziologický ústav fakulty vseobecného lékarství Univerzity Karlovy, Praha.
Mourek
J
J
D000818:Animals; D004299:Dopamine beta-Hydroxylase / Q000097:blood*; D005260:Female; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012008:Recurrence; D013217:Starvation / Q000201:enzymology*
D004299:Dopamine beta-Hydroxylase
Vliv jednorázového a opakovaného hladovĕní na aktivitu dopamin beta hydroxylázy v plazmĕ různĕ starých krys.