| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |
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| TAC-1 | tachykinin-1 |
| TAC-2 | tachykinin-2 |
| TACR | tachykinin receptor |
| TKLI | tachykinin-like immunoreactivity |
| TK | Tachykinin |
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| TRP | tachykinin-related peptide |
| tachykinin | Any member of a group of polypeptides, widely scattered in vertebrate and invertebrate tissues, that have in common four of the five terminal amino acids: Phe-Xaa-Gly-Leu-Met-NH2; pharmacologically, they all cause hypotension in mammals, contraction of gut and bladder smooth muscle, and secretion of saliva. Origin: G. Tachys, swift, + kineo, to move, + -in (05 Mar 2000) |
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| tachykinins | A family of biologically active peptides sharing a common conserved c-terminal sequence, -phe-x-gly-leu-met-nh2, where x is either an aromatic or a branched aliphatic amino acid. Members of this family have been found in mammals, amphibians, and mollusks. Tachykinins have diverse pharmacological actions in the central nervous system and the cardiovascular, genitourinary, respiratory, and gastrointestinal systems, as well as in glandular tissues. This diversity of activity is due to the existence of three or more subtypes of tachykinin receptors. (12 Dec 1998) |
| receptors, tachykinin | Cell surface proteins that bind tachykinins with high affinity and trigger intracellular changes influencing the behaviour of cells. Three classes of tachykinin receptors have been characterised, the nk-1, nk-2, and nk-3, which prefer, respectively, substance p, neurokinin a (substance k, neurokinin alpha, neuromedin l), and neurokinin b (neurokinin beta, neuromedin k). (12 Dec 1998) |
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Synonyms : Tachykinin
| tachykinin |
any member of the tachykinin family of hormones; see under family.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| tachykinin f. |
a family of hormones that are potent, rapidly acting secretagogues and cause smooth muscle contraction and vasodilation; it includes substance P and several less common peptides.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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