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. 1987 Jan;90(1):211–217. doi: 10.1111/j.1476-5381.1987.tb16842.x

Effects of tachykinins on inositol phospholipid hydrolysis in slices of hamster urinary bladder.

D R Bristow, N R Curtis, N Suman-Chauhan, K J Watling, B J Williams
PMCID: PMC1917296  PMID: 3028559

Abstract

Tachykinin-stimulated inositol phospholipid hydrolysis was examined in slices of hamster urinary bladder. In the presence of lithium, to inhibit inositol monophosphatase activity, substance P, eledoisin and related tachykinins induced large, dose-dependent increases in [3H]-inositol monophosphate accumulation. The responses to substance P and eledoisin were not antagonized by the cholinoceptor antagonist, atropine. The rank order of potency for various tachykinins was kassinin greater than neurokinin A greater than neurokinin B greater than eledoisin greater than physaelamin greater than substance P greater than substance P methyl ester. The synthetic analogue [p-Glu6, D-Pro9]SP (6-11) was considerably more potent than its L-prolyl stereoisomer at stimulating inositol phospholipid hydrolysis. These results suggest that in the hamster urinary bladder, tachykinin-induced inositol phospholipid breakdown is mediated via tachykinin receptors of the SP-E type, as opposed to the SP-P type.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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