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Localization of 3H-prazosin binding sites in the supraoptic and paraventricular nuclei of the human hypothalamus.

Using 3H-prazosin, we have examined the distribution of alpha 1-adrenergic receptors in the supraoptic and paraventricular nuclei of the human hypothalamus. Our studies show that binding sites for 3H-prazosin in human hypothalamus possess pharmacological characteristics similar to those of rat brain. Autoradiographic studies revealed discrete localization of 3H-prazosin to the paraventricular and supraoptic nuclei.