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    Science. 1991 Jun 28;252(5014):1848-51.

    A corticosteroid receptor in neuronal membranes.

    Source

    Department of Zoology, Oregon State University, Corvallis 97331.

    Abstract

    Steroids may rapidly alter neuronal function and behavior through poorly characterized, direct actions on neuronal membranes. The membrane-bound receptors mediating these behavioral responses have not been identified. [3H]Corticosterone labels a population of specific, high-affinity recognition sites (dissociation constant = 0.51 nanomolar) in synaptic membranes from an amphibian brain. These binding sites were localized by receptor autoradiography in the neuropil, outside the regions of perikarya. The affinities of corticoids for this [3H]corticosterone binding site were linearly related to their potencies in rapidly suppressing male reproductive behavior. Thus, it appears that brain membranes contain a corticosteroid receptor that could participate in the regulation of behavior.

    PMID:
    2063198
    [PubMed - indexed for MEDLINE]

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