Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-1-12
pubmed:abstractText
Responses to pituitary adenylate cyclase activating polypeptide (PACAP)-38 were investigated and compared with responses to PACAP-27 and vasoactive intestinal polypeptide (VIP) in the pulmonary vascular bed of the intact-chest cat under constant flow conditions. Under low resting tone baseline conditions, injections of PACAP-38 had little or no effect on lobar arterial pressure; however, when tone in the pulmonary vascular bed was raised to a high steady level (35-40 mm Hg) with U46619, intralobar injections of PACAP-38 caused dose-related decreases in lobar arterial pressure without altering left atrial pressure. The peptide induced biphasic changes in systemic arterial pressure. PACAP-38 was more potent than VIP in decreasing lobar arterial pressure, and both peptides were significantly less potent than PACAP-27 in dilating the pulmonary vascular bed. The present data show that PACAP-38 has significant vasodilator activity in the pulmonary vascular bed of the cat, and that the 27 amino acid form of the peptide is approximately 3-fold more potent than PACAP-38.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
243
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-82
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Comparison of responses to pituitary adenylate cyclase activating peptides 38 and 27 in the pulmonary vascular bed of the cat.
pubmed:affiliation
Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't