[The role of the hypothalamic suprachiasmatic nuclei in changing the sensitivity of animals to stress].
Destruction of the circadian pacemaker: suprachiasmatic nuclei of the hypothalamus, enhances the anxiety, sympathetic tone, and induced a reorganising of the time course of forced swimming. In rats under acute stress, these shifts were more obvious. Primary disorganisation of rhythmical processes seems to augment animals' sensitivity to stress.
Beĭer
E V
EV
State Medical Academy, Stavropol, Russia.
Popov
A V
AV
Arushanian
E B
EB
D000818:Animals; D002940:Circadian Rhythm / Q000502:physiology; D003220:Conflict, Psychological; D004198:Disease Susceptibility / Q000503:physiopathology; D004558:Electric Stimulation; D004564:Electrocoagulation; D006339:Heart Rate / Q000502:physiology; D008297:Male; D051381:Rats; D013315:Stress, Psychological / Q000503:physiopathology*; D013493:Suprachiasmatic Nucleus / Q000503:physiopathology* / Q000601:surgery; D013550:Swimming / Q000502:physiology; D013997:Time Factors