Intrahypothalamic injection of somatostatin, not GRF, stimulates prolactin secretion

J. O. Willoughby, R. Kapoor

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The distribution of somatostatin and growth hormone releasing factor (GRF) fibres in the hypothalamus suggests that they may be involved in physiological functions in addition to growth hormone control. GRF or somatostatin were stereotaxically injected into anterior or basal hypothalamic regions of unanesthetized male rats and effects on plasma prolactin measured. Somatostatin caused a small, significant, dose-responsive stimulation of prolactin secretion when injected in both hypothalamic regions, while GRF was without effect. Somatostatin may therefore have a minor intrahypothalamic role in regulating prolactin.

    Original languageEnglish
    Pages (from-to)153-156
    Number of pages4
    JournalNeuropeptides
    Volume15
    Issue number3
    DOIs
    Publication statusPublished - Mar 1990

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