Purified alpha-bungarotoxin was isolated by chromatography and made radioactive with tritium ([3H]acetamidino-alpha-bungarotoxin). Infusions of [3H]alpha-bungarotoxin alone or preceded by tubocurarine or atropine were given into the third ventricle. 2. 12, or 24 h after injection the brains were prepared for autoradiography. Injections of alpha-bungarotoxin (radioinert) in buffer, or of [3H]parathyroid hormone in buffer, served as controls. The various patterns of labeling suggest the presence of nicotinic-cholinergic neurons within the arcuate and basolateral regions of the hypothalamus including the supraoptic and suprachiasmatic nuclei and, in addition, the central nucleus of the amygdala.
This content is only available as a PDF.
You do not currently have access to this content.
