Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2010-11-24
pubmed:abstractText
Platelet aggregates appear to have a pathogenic role in the no-reflow phenomenon, which is associated with impaired clinical outcome in patients with ST-segment elevation myocardial infarction (STEMI). Melatonin, a hormone that plays a major role in biological circadian rhythms, is present in human platelets. Lowered circulating melatonin levels predict poor outcome in patients with STEMI undergoing primary percutaneous coronary intervention (PPCI). We investigated whether intraplatelet melatonin levels correlate with angiographic no-reflow after PPCI in patients with STEMI. We studied 180 consecutive patients with a first STEMI who underwent PPCI within 6 hours from onset of symptoms. Intraplatelet melatonin levels were measured in platelet-rich plasma using an enzymatic immunoassay method. After PPCI, angiographic no-reflow (defined as Thrombolysis In Myocardial Infarction grade < 2 flow) was observed in 63 patients (35%). Patients with angiographic no-reflow had lower intraplatelet melatonin levels compared to patients without no-reflow (12.32 ± 3.64 vs 18.62 ± 3.88 ng/100,000 platelets, p < 0.0001). After adjusting by potential confounders, binary logistic regression analysis showed that intraplatelet melatonin levels were the only significant predictor of angiographic no-reflow (odds ratio 1.58, 95% confidence interval 1.37 to 1.82, p < 0.0001). In conclusion, low intraplatelet melatonin concentration predicts angiographic no-reflow after PPCI in patients with STEMI.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1879-1913
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
106
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1540-4
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Usefulness of intraplatelet melatonin levels to predict angiographic no-reflow after primary percutaneous coronary intervention in patients with ST-segment elevation myocardial infarction.
pubmed:affiliation
Department of Cardiology, Hospital Universitario de Canarias, Tenerife, Spain. adrvdg@hotmail.com
pubmed:publicationType
Journal Article, Comparative Study