Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
|
pubmed:dateCreated |
1997-5-29
|
pubmed:abstractText |
UR-7280 (3-tert-butyl-1-propyl-5-[[2'-(1H-tetrazol-5-yl)-1,1'-biphenyl-4-y l]methyl]-1H-pyrazole-4-carboxylic acid) is a new and potent angiotensin AT1-selective receptor antagonist. Binding studies in rat liver membranes showed that UR-7280 is an apparently competitive antagonist. However, in rabbit aorta this compound antagonized the angiotensin II-induced contractile response in an insurmountable way, causing a significant reduction of the maximal response. Additional binding studies evidenced that UR-7280 has a slowly reversible binding profile, consistent with its functional properties in rabbit aorta. The results obtained with a series of structural analogues of UR-7280 demonstrated a relationship between the size of the pyrazole 3-substituent and the surmountable or insurmountable mode of antagonism, indicating that this position may play a key role in the interaction between the antagonist and the angiotensin AT1 receptor.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0014-2999
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
318
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
341-7
|
pubmed:dateRevised |
2010-11-18
|
pubmed:meshHeading |
pubmed-meshheading:9016924-Angiotensin II,
pubmed-meshheading:9016924-Angiotensin Receptor Antagonists,
pubmed-meshheading:9016924-Animals,
pubmed-meshheading:9016924-Male,
pubmed-meshheading:9016924-Muscle, Smooth, Vascular,
pubmed-meshheading:9016924-Pyrazoles,
pubmed-meshheading:9016924-Rabbits,
pubmed-meshheading:9016924-Rats,
pubmed-meshheading:9016924-Structure-Activity Relationship,
pubmed-meshheading:9016924-Tetrazoles,
pubmed-meshheading:9016924-Vasoconstriction
|
pubmed:year |
1996
|
pubmed:articleTitle |
In vitro pharmacological characterization of a new selective angiotensin AT1 receptor antagonist, UR-7280.
|
pubmed:affiliation |
Pharmacology Laboratory, Research Center, J. Uriach & Cia S.A., Barcelona, Spain.
|
pubmed:publicationType |
Journal Article,
In Vitro
|