Linked Life Data

1439644

Source:http://linkedlifedata.com/resource/pubmed/id/1439644

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-12-17
pubmed:abstractText
Vascular effects of atrial natriuretic polypeptide (APII), i.e. the peptide hormone released from the atrial myocardium, were investigated in segments of the human internal thoracic artery (ITA) and saphenous vein (SV) with intact (+E) or injured (-E) endothelium. All segments were subject to several cycles of agonists in order to detect tachyphylactic or facilitatory responses. Opposite, indirect effects on the noradrenaline contracted ITA and SV were obtained in response to APII at a supranormal concentration (50 nM) which had no direct relaxing action on the isolated segments in vitro. In ITA the noradrenaline contractures in subsequent cycles were reduced to 41 +/- 21% (+E) and 28 +/- 9% (-E), but in SV they were enhanced to 211 +/- 115% (+E) and 483 +/- 242% (-E) of those before APII exposure. Thus under in vitro conditions ITA could be indirectly relaxed by APII via tachyphylactic effect on the noradrenaline contracture. SV, on the other hand, was markedly potentiated by APII in its noradrenaline response. In injured endothelium these opposite effects were aggravated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0036-5580
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-41
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
In vitro responses to atrial natriuretic polypeptide in human vessels commonly used as aortocoronary bypass grafts.
pubmed:affiliation
Department of Physiology, University of Bergen, Norway.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't