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The subunit composition and pharmacological regulation of rat neuronal nicotinic cholinergic receptors were assessed. Specific immunoprecipitation was determined in solubilized rat brain homogenates using [3H]cytisine, a high affinity agonist at nicotinic receptors, in conjunction with polyclonal antisera generated against nonhomologous domains of the(More)
Cytisine, a ganglionic agonist, competes with high affinity for brain nicotinic cholinergic receptors labeled by any of several nicotinic 3H-agonist ligands. Here we have examined the binding of [3H]cytisine in rat brain homogenates. [3H]Cytisine binds with high affinity (Kd less than 1 nM), and specific binding represented 60-90% of total binding at all(More)
A light microscopic immunocytochemical approach has been used to examine the distribution and maturation of gamma-aminobutyric acid- (GABA) containing cells in rat medial prefrontal cortex (mPFC) at progressive postnatal stages. Between P1 and P5, labeled cells in the cortical plate show less differentiated morphological characteristics when compared to(More)
Repeated administration of electroconvulsive shock (ECS) increases [3H]prazosin binding to alpha 1-adrenoceptors in rat cerebral cortex. In contrast, [3H]WB4101 binding in cortex has been reported to be unchanged after ECS. [3H]Prazosin labels two alpha 1-adrenoceptor subtypes, termed alpha 1a and alpha 1b, whereas [3H]WB4101 labels the alpha 1a subtype(More)
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