[Monoaminergic and peptidergic innervation of rat median eminence, studied by a combination, in the same hypothalamus, of histofluorescent, immunocytochemical and radioautographic technics].

The application of a combined histofluorescence-immunocytochemical and radioautographic technique on the same rat hypothalamus has revealed : 1) a close correlation between the dopaminergic fibers and LH-RH containing axons all along the external layers of the ME, 2) a probable origin within the periventricular hypothalamus of some of the SRIF containing axons evidenced in the external zone of the ME, 3) the exclusive location within the internal ME of the axons originating within the supraoptic nuclei, 4) the ending within the external ME of the axons originating within the medial paraventricular nuclei.