rdf:type |
|
lifeskim:mentions |
umls-concept:C0020291,
umls-concept:C0031586,
umls-concept:C0031621,
umls-concept:C0208973,
umls-concept:C0243127,
umls-concept:C0332120,
umls-concept:C0443331,
umls-concept:C1140999,
umls-concept:C1517892,
umls-concept:C1704666,
umls-concept:C1801960,
umls-concept:C1882561,
umls-concept:C2003941
|
pubmed:issue |
2
|
pubmed:dateCreated |
1986-3-24
|
pubmed:abstractText |
We investigated the actions of two biologically active phorbol esters, phorbol dibutyrate (PDB) and phorbol myristate acetate (PMA), on receptor-stimulated phosphoinositide hydrolysis in rat aorta. We found both PDB and PMA potently inhibited norepinephrine (NE) stimulated PI hydrolysis in rat aortic rings. The biologically inactive phorbol, 4-alpha-phorbol was ineffective. In the presence of the calcium channel antagonist nitrendipine, PDB potently inhibited both the phasic and tonic components of NE-induced contraction. These results suggest a functional coupling between receptor-stimulated PI turnover and vascular contraction. They also suggest a mode of feed-back regulation in vascular tissue involving phorbol esters in receptor-stimulated PI hydrolysis.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0006-291X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
29
|
pubmed:volume |
134
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
970-4
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:3004478-Animals,
pubmed-meshheading:3004478-Hydrolysis,
pubmed-meshheading:3004478-Male,
pubmed-meshheading:3004478-Muscle, Smooth, Vascular,
pubmed-meshheading:3004478-Muscle Contraction,
pubmed-meshheading:3004478-Nifedipine,
pubmed-meshheading:3004478-Nitrendipine,
pubmed-meshheading:3004478-Norepinephrine,
pubmed-meshheading:3004478-Phorbol Esters,
pubmed-meshheading:3004478-Phosphatidylinositols,
pubmed-meshheading:3004478-Rats,
pubmed-meshheading:3004478-Receptors, Adrenergic, alpha,
pubmed-meshheading:3004478-Vasomotor System
|
pubmed:year |
1986
|
pubmed:articleTitle |
Phorbol esters inhibit alpha 1-adrenergic receptor-stimulated phosphoinositide hydrolysis and contraction in rat aorta: evidence for a link between vascular contraction and phosphoinositide turnover.
|
pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, Non-P.H.S.
|