[Immunohistochemical identification, in an anuran amphibian (Xenopus laevis Daud.) of infundibular neurons reacting with antigastrin serum].

Neurons containing peptides immunocytologically related to gastrin have been revealed by immuno-cytology in the post-chiasmatic hypothalamus of Xenopus laevis. Their pericarya are localized in the postero-dorsal zone of the pars ventralis of the tuber cinereum; their axons end on the capillaries of the external zone of the median eminence.