[Responses of hypophyseal-adrenocortical system to stressor during repeated stress].
The corticosterone concentrations were determined in the blood of unrestrained rats exposed to 7 successive trials with 30-min. intervals. This study revealed that hormonal responses of the pituitary-adrenocortical system to stress were decreased, whereas the time of the system recovery was reduced after re-exposure to electric shock. The change seems to be dependent on the strength of the stress agent and the number of re-exposures.
Rochas
S V
SV
I.P. Pavlov Institute of Physiology of the Russian Acad. Sci., St. Petersburg, Russia.
Podvigina
T T
TT
D000818:Animals; D003345:Corticosterone / Q000097:blood; D004558:Electric Stimulation; D008297:Male; D010913:Pituitary-Adrenal System / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D013312:Stress, Physiological / Q000097:blood / Q000503:physiopathology*
D003345:Corticosterone