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  • Title: Senktide, a selective neurokinin B-like agonist, elicits serotonin-mediated behaviour following intracisternal administration in the mouse.
    Author: Stoessl AJ, Dourish CT, Young SC, Williams BJ, Iversen SD, Iversen LL.
    Journal: Neurosci Lett; 1987 Oct 05; 80(3):321-6. PubMed ID: 2446214.
    Abstract:
    Behavioural responses to tachykinins were observed following intracisternal administration in mice. The synthetic NK-3 agonists senktide and L-363,851 caused behaviour typically associated with serotonergic stimulation, including head twitches, reciprocal forepaw treading and hindlimb splaying. Neurokinin B produced some features of the serotonin (5-HT) syndrome, while substance P, neurokinin A and eledoisin failed to elicit any such behaviours. Senktide-induced head twitches were prevented by pretreatment with the 5-HT2 antagonists ketanserin and ritanserin, while forepaw treading was attenuated by the 5-HT1 antagonists (-)-pindolol and methysergide. These data suggest that NK-3 agonists interact with central 5-HT mechanisms.
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