Summary
Histamine injected into the 3rd ventricle of normal male rats at doses of 5–60μg (free base) caused a marked release of prolactin. Responses were prevented by the antihistamine chlorpheniramine but not by atropine, methysergide or phenoxybenzamine. It thus seems that effects of histamine on prolactin are specific and not mediated by other neurotransmitters. Plasma LH remained normal after injection of low doses but it was decreased after high doses.
The results obtained indicate a facilitatory role of histamine on prolactin release.
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Donoso, A.O., Bannza, A.M. Acute effects of histamine on plasma prolactin and luteinizing hormone levels in male rats. J. Neural Transmission 39, 95–101 (1976). https://doi.org/10.1007/BF01248768
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DOI: https://doi.org/10.1007/BF01248768