Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3 Pt 1
pubmed:dateCreated
1995-10-4
pubmed:abstractText
Inhibition of cyclooxygenase by aspirin has been shown to be beneficial in clinical situations such as acute myocardial infarction or unstable angina. The precise effect of various doses of aspirin on acute and long-term inhibition of platelet aggregation and thromboxane synthesis remains unclear. In this study we evaluated the effect of oral aspirin (0, 40, 100, 300, or 500 mg) as the initial loading dose in combination with different maintenance doses of aspirin (0, 40, or 100 mg/day) for 14 days on platelet function in healthy men. Bleeding time 2 or 24 hours after the first aspirin administration was significantly increased for 300 and 500 mg aspirin (p < 0.01). Two hours after the first administration of 100, 300, and 500 mg aspirin, a significant inhibition of collagen-induced platelet aggregation (ED50 collagen: from 3 +/- 1 to 17 +/- 2, 24 +/- 3, 22 +/- 3 micrograms/ml, respectively) was seen. At the same time serum thromboxane B2 synthesis was inhibited by more than 99% with 300 and 500 mg aspirin. At the end of the 14-day observation period, bleeding time was significantly prolonged for the different combinations of aspirin doses compared with initial values (p < 0.01). Collagen-induced platelet aggregation and serum thromboxane B2 synthesis were significantly inhibited for all aspirin combinations tested at 14 days (p < 0.05). The 40/40 mg aspirin combination was less effective, because it reached its maximal effect very late at day 7 of the observation period compared with the other combinations.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0002-8703
pubmed:author
pubmed:issnType
Print
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
465-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Aspirin therapy: optimized platelet inhibition with different loading and maintenance doses.
pubmed:affiliation
Department of Medicine II, Johannes Gutenberg-University, Mainz, Germany.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't