[Effect of castration and testosterone propionate on 3H-noradrenaline metabolism in different brain structures in male rats].

Experimental results demonstrated that castration in male rats led to the changes in catecholamine metabolism in various regions of the brian. In particular there is an acceleration of labeled noradrenalin- disappearance (3H-noradrenaline) from the limbic system of the hypothalamus formations. Testosterone propionate restored the initial level of 3H-noradrenaline in the mentioned structures of the brain. The data obtained indicated that adrenorecption of the rynecephalo-hypothalamic complex took part in the central regulation of the gonadotropic function of the hypophysis.