[Characteristics of the estradiol receptor system of the anterior hypothalamus and adenohypophysis in guinea pigs].

The presence of a specific receptor system (E2-R) wthith low capacity and high stability of the E2-R complex formation was shown in the guinea pig adenohypophysis and anterior hypothalamus cytozols under the vivo and in vitro conditions. Some parameters of the physico-chemical properties of the E2-R system in these tissues differed. The adenohypophysis and the anterior hypothalamus receptor complexes formed at different temperatures were not identical.