Linked Life Data

2065481

Source:http://linkedlifedata.com/resource/pubmed/id/2065481

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1991-8-15
pubmed:abstractText
1. In a new animal model which mimics the cellular events of early human atherosclerosis, atheroma-like lesions were produced by positioning a hollow silastic collar around the common carotid arteries of rabbits. The functional significance of these arterial lesions on blood flow responses to vasoactive agents was then studied in anaesthetized rabbits in vivo. 2. After 1 week of lesion development, resting blood flow was lower in atherosclerotic (cuffed) carotid arteries compared with the contralateral, sham-operated control arteries. 3. Intra-carotid injection of serotonin (0.01-1 microgram) produced dose-dependent increases in blood flow in control arteries, but produced either smaller increases or decreases in flow in cuffed arteries. Serotonin caused complete vasospasm (zero blood flow) in one of six rabbits. 4. Acetylcholine (0.0001-0.01 microgram, intra-carotid) produced smaller increases in blood flow in cuffed arteries compared with controls. 5. These data support the proposal that morphological and functional alterations in large arteries in the early stages of atherogenesis play an important role in determining blood flow in vivo. The increased vascular reactivity to serotonin which accompanies development of the lesions might contribute to vasospasm.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0305-1870
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
367-70
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Enhanced vasoconstriction by serotonin in rabbit carotid arteries with atheroma-like lesions in vivo.
pubmed:affiliation
Department of Physiology, University of Melbourne, Parkville, Victoria, Australia.
pubmed:publicationType
Journal Article, Comparative Study