Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1991-5-16
|
pubmed:abstractText |
The present studies examined serotonergic contractile sensitivity mediated by 5-HT2 receptors in thoracic and abdominal regions of rat aorta. Increasing concentrations of 5-HT (10 nM-100 microM) in the presence or absence of the selective 5-HT2 antagonist ketanserin (5 nM) produced differential concentration-response curves in thoracic and abdominal aortic ring preparations. Abdominal aortic preparations were significantly more sensitive to 5-HT than thoracic regions. Regional variations in maximal response produced by 5-HT were not observed. Ketanserin produced distinct rightward shifts in the 5-HT concentration-response curves, revealing a similar profile of sensitivity in thoracic and abdominal aorta. These data suggest that regional patterns in 5-HT-induced contractile responses in rat aorta are mediated by 5-HT2 sites exhibiting differential, site specific sensitivity.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0098-6127
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
18
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
47-53
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:2085286-Animals,
pubmed-meshheading:2085286-Aorta, Abdominal,
pubmed-meshheading:2085286-Aorta, Thoracic,
pubmed-meshheading:2085286-Ketanserin,
pubmed-meshheading:2085286-Male,
pubmed-meshheading:2085286-Rats,
pubmed-meshheading:2085286-Rats, Inbred Strains,
pubmed-meshheading:2085286-Receptors, Serotonin,
pubmed-meshheading:2085286-Serotonin,
pubmed-meshheading:2085286-Vasoconstriction
|
pubmed:year |
1990
|
pubmed:articleTitle |
Regional differences in serotonergic contractile sensitivity mediated by 5-HT2 receptors in rat aorta.
|
pubmed:affiliation |
Neuropharmacology Laboratory College of Pharmacy and Health Sciences, Drake University, Des Moines, IA 50311.
|
pubmed:publicationType |
Journal Article,
Comparative Study,
In Vitro,
Research Support, Non-U.S. Gov't
|