[The action of high temperature on beta-adrenoreceptor activity and catecholamine synthesis]

Hyperthermia and overheating of the rat isolated organs induce significant changes of the binding of receptors' specific blockers and catecholamine synthesis. One of the main mechanisms of the organism response to the temperature actions involves a local rearrangement in intensity of different stages of the adrenergic process. Possible significance of these changes in the hypothalamus for synchronisation of the organism's response to extreme temperature effects, is discussed.