[Homocarnosine in the brain of rats during cold adaptation]

24-hr effect of 2 degrees C-cold decreased the content of homocarnosin by 47.5% in the rat brain. 3-day effect decreased it by 51.2% and 7-day action decreased it by 62.2%. In cold-adapted rats (45 days) the homocarnosin content in the brain remains decreased by 56.5% and practically does not differ from the control level on the 7th day of cold-adaptation.