[Neurotropic effects of luliberin analog in rats with different sensitivity to ethanol].

Luliberin's analogue (surfagon) has been established to activate shock-induced aggression of short-sleeping (SS) and long-sleeping (LS) rats in painful stress. The using of the castration and hypophysectomy has proved this effect to result from the direct neurotropic action of peptide. It has been shown, that SS rats differ from LS ones by more expressed reducing of painful aggressive and reference reactions after castration and hypophysectomy as well as by definitive peculiarities of peptidergic effects of surfagon.