Linked Life Data

2677138

Source:http://linkedlifedata.com/resource/pubmed/id/2677138

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1989-11-2
pubmed:abstractText
In order to test the hypothesis that the contraction induced in human resistance arterioles by porcine tetradecapeptide renin substrate (TDP) is mediated by enzymes specific to the renin-angiotensin cascade, human resistance vessels from skin and subcutaneous fat were mounted in a myograph and exposed to TDP in the presence and absence of the human renin inhibitor H261, the serine protease inhibitor aprotinin, a polyclonal anti-human renin antibody and captopril. TDP induced a dose-dependent contraction that could be abolished by saralasin. The sensitivity to TDP was significantly attenuated by H261, aprotinin and combinations of captopril with aprotinin and captopril plus aprotinin and H261, as indicated by a significant reduction in pD2 (-log10ED50 [mmol/l]) for TDP. However, captopril alone was ineffective. It was concluded that at physiological pH, porcine TDP induces contraction in human resistance vessels by the action of enzymes not specific to the renin-angiotensin cascade. Whilst a clear inhibitory effect of H261 was demonstrated, a significant comparable inhibition by captopril and a polyclonal renin antibody was not observed. This may reflect the difficulty with which these inhibitors gain access to their intracellularly located substrates.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0263-6352
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
741-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
The contractile effects of porcine tetradecapeptide renin substrate in human resistance vessels: evidence of activation by vascular wall renin and serine proteases.
pubmed:affiliation
Biophysics Institute, Aarhus University, Denmark.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't