[An increase in brain temperature in rats to the intranasal administration of thyroliberin]

The integral rat brain temperature was measured by radiothermoscope after intranasal instillation of thyroliberin in a dose 400 mkg. The recording increase of temperature lasted during two hours after instillation. This phenomenon is based both on the direct action of thyroliberin and on its capacity to stimulate the induction of other regulatory peptides.