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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-1-12
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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.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
243
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
79-82
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7902814-Animals,
pubmed-meshheading:7902814-Blood Pressure,
pubmed-meshheading:7902814-Cats,
pubmed-meshheading:7902814-Female,
pubmed-meshheading:7902814-Male,
pubmed-meshheading:7902814-Neuropeptides,
pubmed-meshheading:7902814-Neurotransmitter Agents,
pubmed-meshheading:7902814-Perfusion,
pubmed-meshheading:7902814-Pituitary Adenylate Cyclase-Activating Polypeptide,
pubmed-meshheading:7902814-Pulmonary Veins,
pubmed-meshheading:7902814-Vasoactive Intestinal Peptide
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pubmed:year |
1993
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pubmed:articleTitle |
Comparison of responses to pituitary adenylate cyclase activating peptides 38 and 27 in the pulmonary vascular bed of the cat.
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pubmed:affiliation |
Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA 70112.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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