A Diurnal Rhythm in Pineal Protein 1 Content Mediated by β-Adrenergic Neurotransmission

Abstract
A diurnal rhythm was found in the total amount of the neuron-specific phosphoprotein protein I in rat pinealocytes. β-Adrenergic neurotransmission appears to be the mechanism regulating the amount of pineal protein I in vivo.
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