Neuropeptide Y-like immunoreactive C1 neurons in the rostral ventrolateral medulla of the rabbit project to sympathetic preganglionic neurons in the spinal cord

W. W. Blessing, J. R. Oliver, A. H. Hodgson, T. H. Joh, J. O. Willoughby

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    66 Citations (Scopus)

    Abstract

    After injection into the thoracic spinal cord of the rabbit, gold particles coupled to concanavalin A were found in the rostral ventrolateral medulla in neurons which contained neuropeptide Y-like immunoreactivity. These cells have previously been shown to belong to the C1 catecholamine (presumably adrenaline)- synthesizing group. Nerve terminals in the intermediolateral column contained both tyrosine hydroxylase and neuropeptide Y-like immunoreactivity. When fast blue was injected into the adrenal gland the retrogradely labeled preganglionic neurons were shown to be surrounded by nerve terminals containing neuropeptide Y-like immunoreactivity. Our results indicate that at least some of these terminals derive from C1 neurons which also synthesize neuropeptide Y.

    Original languageEnglish
    Pages (from-to)121-129
    Number of pages9
    JournalJournal of the Autonomic Nervous System
    Volume18
    Issue number2
    DOIs
    Publication statusPublished - Feb 1987

    Keywords

    • Adrenal gland
    • C catecholamine-synthesizing neuron
    • Colocalization study
    • Neuropeptide Y
    • Sympathetic preganglionic neuron

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