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J Neurochem. 1986 Jan;46(1):294-6.

Beta 2-adrenergic receptors on peripheral nerves.


We report that peripheral nerves have a functional adenylate cyclase-coupled beta-adrenergic receptor. The pharmacological specificity of this receptor is shown to be of the beta 2 subtype. Two peripheral nerves, the sciatic from the frog and rat and the vagus from the rat, responded to beta 2-agonists with 10-50-fold increases in intracellular cyclic AMP level. This increase was inhibited by the beta-adrenergic antagonist propranolol. In contrast, a central nerve tract, the corpus callosum, responded to isoproterenol with only a minimal one- to twofold increase in cyclic AMP level. These studies demonstrate that peripheral nerves have beta 2-adrenergic receptors that are responsive to exogenously applied catecholamines and suggest a role for these ligands in the previously described modulation of axonal conduction.

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