Linked Life Data

2948839

Source:http://linkedlifedata.com/resource/pubmed/id/2948839

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1987-2-26
pubmed:abstractText
Thromboxane A2 (TxA2) and prostaglandin H2 (PGH2) aggregate platelets and contract vascular smooth muscle. Inasmuch as both compounds produce the same effects and presumably through the same receptor, their receptors have been referred to as TxA2/PGH2 receptors. Pharmacological studies of stable agonists and antagonists of the TxA2/PGH2 receptors have shown different rank order potencies for these compounds in platelets compared with blood vessels. These studies have provided evidence to support the hypothesis that the platelet TxA2/PGH2 receptor is different from the one found in vascular tissue. The vascular receptor has been named [TxA2/PGH2]tau and the platelet receptor has been named [TxA2/PGH2]alpha. In the past few years several radiolabeled antagonists and agonists have been developed and used in radioligand-binding studies, primarily in platelets. One of these ligands, 125I-labeled PTA-OH, a TxA2/PGH2 receptor antagonist, has been extensively used to characterize the human platelet TxA2/PGH2-binding site. It has been found to have a Kd of approximately 20 nM and a Bmax of 2500 binding sites/platelet. Through the combination of pharmacological and biochemical approaches, it should be possible to characterize platelet and vascular TxA2/PGH2 receptors.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-9446
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
149-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Platelet and vascular smooth muscle thromboxane A2/prostaglandin H2 receptors.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't