Definition of tachykinin in English:



  • Any of a class of substances formed in bodily tissue in response to injury and having a rapid stimulant effect on smooth muscle.

    • ‘Intravenous injection of several tachykinins such as substance P and neurokinin A induces plasma extravasation markedly in the trachea and main bronchi and less prominently in the larynx and intrapulmonary airways of guinea pigs.’
    • ‘The symptoms of carcinoid are produced by excess secretion of serotonin, and the flushing by histamine and tachykinins.’
    • ‘They determined whether viral infections alter the expression of tachykinins in vagal afferents.’
    • ‘In general, it has been found that the tachykinins display some elements of secondary structure in appropriate solution environments, though it has been suggested that they undergo rapid conformational exchange.’