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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2003-4-11
pubmed:abstractText
Exogenous neuropeptide Y produced marked contractions in rat isolated common jugular, brachial, and caudal veins, while it produced little or no contractions in common carotid, brachial, and caudal arteries. Neuropeptide Y (30 nM) produced larger contractions in these veins than did phenylephrine (1 microM), with maximal contractions through the neuropeptide Y receptor and the alpha1-adrenoceptor, respectively. In contrast, neuropeptide Y (30 nM) produced smaller contractions than did phenylephrine (1 microM) in the arteries. Pre-treatment with neuropeptide Y (30 nM) showed remarkable desensitization to neuropeptide Y (30 nM). This desensitization lasted for 1 h in the caudal vein or for 2 h in the common carotid and brachial veins. The neuropeptide Y-induced contraction and its desensitization probably occurred through the neuropeptide Y receptor subtype Y1, because only the neuropeptide Y receptor subtype Y1 was detected in the smooth muscle by the reverse transcriptase-polymerase chain reaction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0160-2446
pubmed:author
pubmed:issnType
Print
pubmed:volume
41 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S23-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Neuropeptide Y-induced contraction and its desensitization through the neuropeptide Y receptor subtype in several rat veins.
pubmed:affiliation
Division of Pharmacology, Department of Molecular Genetics and Signal Transduction Research, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't