Linked Life Data

8296217

Source:http://linkedlifedata.com/resource/pubmed/id/8296217

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1994-3-1
pubmed:abstractText
Specific radioimmunoassay showed that in rat neuropeptide Y (NPY) immuno-reactivities (IR) in platelets and platelet rich plasma (PRP) were respectively 90 +/- 16 ng/10(7) platelets and 93 +/- 19 ng/ml. Both values were much greater than those in the plasma (1.2 +/- 0.1 ng/ml, P < 0.001) and platelet poor plasma (PPP) (1.7 +/- 0.3 ng/ml, P < 0.001). The NPY-IR in rat platelets eluted at the same position as authentic NPY on reverse phase HPLC. The NPY-IR in the platelets prepared from the PRP aggregated maximally by collagen reduced to 34 +/- 5 ng/10(7) platelets, while the NPY-IR in the PPP prepared from the same PRP increased to 26 +/- 4 ng/ml. PPP 1.6 ml prepared from the aggregated PRP induced contraction of isolated rat caudal arteries with the maximal tension of 380 +/- 80 mg; while the maximal contraction induced by 1.6 ml of the same PPP pretreated with NPY anti-serum was only 190 +/- 40 mg (P < 0.001). Authentic NPY 1 nmol/L did not cause any contraction. The results indicate that rat platelets contain a high concentration of NPY, which can be released during irreversible platelet aggregation. The NPY released can potentiate vasoconstriction responses induced by co-released substances during platelet aggregation.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0371-0874
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
400-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
[Platelet neuropeptide Y and its vasoconstriction effect in rat].
pubmed:affiliation
Institute of Vascular Medicine, Third Hospital, Beijing Medical University.
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't