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Characterization of 5-HT1 Binding Site Subtypes Labelled by [3H]-5-Hydroxytryptamine

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Serotonin

Abstract

The first radioligand used in an attempt to label receptors for 5-hydroxytryptamine (5-HT) receptors in the CNS was [3H]-5-HT (March-banks, 1966). It was not until 1976, however, that a specific population of high-affinity, saturable binding sites in brain membranes was identified using this radioligand by Bennett and Snyder (1976). In 1979, it was determined that the binding sites labelled by [3H]-5-HT were distinct from a second class of 5-HT binding sites labelled by [3H]-spiperone (Peroutka and Snyder, 1979; Peroutka et al., 1981). The sites labelled by [3H]-5-HT were designated 5-HT1 binding sites, and initially were believed to be homogeneous.

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Peroutka, S.J. (1989). Characterization of 5-HT1 Binding Site Subtypes Labelled by [3H]-5-Hydroxytryptamine. In: Mylecharane, E.J., Angus, J.A., de la Lande, I.S., Humphrey, P.P.A. (eds) Serotonin. Satellite Symposia of the IUPHAR 10th International Congress of Pharmacology. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-10114-6_24

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