Central vasopressin infusion prevents hibernation in the European hamster (Cricetus cricetus).
The amount of immunocytochemically detectable vasopressin in the brain of the European hamster (Cricetus cricetus) shows a seasonal variation; i.e., dense vasopressin immunoreactivity is present in the lateral septum during summer but is absent in autumn and winter [Buijs, R. M., Pévet, P., Masson-Pévet, M., Pool, C. W., De Vries, G. J., Canguilhem, B. & Vivien-Roels, B. (1986) Brain Res. 371, 193-196]. In the winter period the European hamster hibernates. Since vasopressin in the lateral septum is known to be involved in the control of body temperature, we investigated whether infusion of vasopressin in the lateral septum during autumn-winter could influence hypothermic patterns normally seen in hibernating animals. Hamsters whose lateral septum was infused with vasopressin showed almost no periods of hypothermia, whereas hamsters treated with control infusions displayed a normal hibernation pattern. The results indicate that persistence of vasopressin release in the lateral septum of the European hamster during winter can prevent hibernation.
Hermes
M L
ML
Centre National de la Recherche Scientifique, Université Louis Pasteur, Strasbourg, France.
Buijs
R M
RM
Masson-Pévet
M
M
van der Woude
T P
TP
Pévet
P
P
Brenklé
R
R
Kirsch
R
R
D000818:Animals; D001127:Arginine Vasopressin / Q000008:administration & dosage / Q000494:pharmacology*; D001831:Body Temperature / Q000187:drug effects; D001921:Brain / Q000187:drug effects / Q000502:physiology*; D006224:Cricetinae; D006605:Hibernation / Q000187:drug effects*; D007263:Infusions, Parenteral; D008297:Male; D012016:Reference Values; D012621:Seasons
D001127:Arginine Vasopressin