Inhibition of acetylcholine release from guinea pig myenteric neurons by neuropeptide Y: GTP-binding protein mediation
dc.contributor.author | Mulholland, Michael W. | en_US |
dc.contributor.author | Jaffer, Salim | en_US |
dc.date.accessioned | 2006-04-10T14:42:39Z | |
dc.date.available | 2006-04-10T14:42:39Z | |
dc.date.issued | 1991-06 | en_US |
dc.identifier.citation | Mulholland, Michael W., Jaffer, Salim (1991/06)."Inhibition of acetylcholine release from guinea pig myenteric neurons by neuropeptide Y: GTP-binding protein mediation." Journal of Surgical Research 50(6): 574-578. <http://hdl.handle.net/2027.42/29312> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6WM6-4BNG2XW-P0/2/c268528929930071701d9174f48289ef | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/29312 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=1904963&dopt=citation | en_US |
dc.description.abstract | Neuropeptide Y (NPY) is a unique peptide with wide distribution in central and peripheral nervous systems. In the guinea pig, NPY-positive fibers are prominent in the myenteric plexus. To test whether NPY inhibits myenteric plexus acetylcholine (ACh) release and to define mechanisms, a purified preparation of myenteric plexus neurons was derived from the teniae coli of neonatal guinea pigs and maintained in primary culture. Incubation of cultured neurons labeled with [3H]ACh in the presence of NPY (10-14-10-6M) significantly inhibited basal ACh release (83 +/- 16 to 58 +/- 11% of control). NPY significantly inhibited ACh release stimulated by potassium (55 mM); by adenylate cyclase agonists forskolin (10-6M) and cholera toxin (10-8M); and by calcitonin gene-related peptide, cholecystokinin octapeptide, and vasoactive intestinal peptide (each 10-8M). In each instance, the inhibitory effects of NPY were reversed by preincubation with pertussis toxin. Reversal of inhibitory effects by pertussis toxin suggests that the actions of NPY are mediated via an inhibitory GTP-binding protein. | en_US |
dc.format.extent | 673636 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Inhibition of acetylcholine release from guinea pig myenteric neurons by neuropeptide Y: GTP-binding protein mediation | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Surgery and Anesthesiology | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109-0331, USA | en_US |
dc.contributor.affiliationum | Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109-0331, USA | en_US |
dc.identifier.pmid | 1904963 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/29312/1/0000376.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0022-4804(91)90044-M | en_US |
dc.identifier.source | Journal of Surgical Research | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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