Linked Life Data

4077436

Source:http://linkedlifedata.com/resource/pubmed/id/4077436

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1986-2-12
pubmed:abstractText
Several vasodilators, including acetylcholine, are capable of inducing maximal renal vasodilatation when infused into the renal artery. Despite substantial interest in the renal vascular response to calcium channel blocking agents, there has been no systematic comparison of any of these agents to an index vasodilator, such as acetylcholine. We compared the renal vascular angiographic response to acetylcholine and diltiazem, infused into the renal artery in graded dosage, in 14 dogs. In eight of the dogs renal blood flow was measured with an electromagnetic flowmeter. At peak, the acetylcholine-induced increase in renal blood flow (155 +/- 25 to 309 +/- 55 ml/min) slightly exceeded that induced by diltiazem (143 +/- 13 to 257 +/- 58 ml/min). A close correlation was found between the maximal blood flow increase induced by acetylcholine and by diltiazem (R = .95). Dilatation of the intrarenal arterial tree evident on the renal arteriogram was substantially less striking with diltiazem than with acetylcholine in these eight dogs. To ascertain the possible contributing role of the surgery required for blood flow measurement, the two agents were assessed in six additional dogs without blood flow measurement. In these six dogs diltiazem and acetylcholine induced essentially identical degrees of renal arterial vasodilatation. It is concluded that diltiazem, the calcium channel blocking agent, produces near maximal renal vasodilatation at the arteriolar level and that responses of more proximal elements of the renal arterial tree, visible during renal arteriography, are sensitive to the conditions of the experiment.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0020-9996
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
824-9
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Comparison of the response of the renal blood supply to acetylcholine and to a calcium channel blocking agent, diltiazem, in the dog.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.