Document Detail


Association of platelet-monocyte aggregates with platelet activation, systemic inflammation, and myocardial injury in patients with non-st elevation acute coronary syndromes.
MedLine Citation:
PMID:  17262778     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Platelet-monocyte aggregates (PMA) and C-reactive protein (CRP) are increased in unstable coronary disease. The interrelation of PMA with platelet activation, systemic inflammation, and their association with markers of myocardial injury has not been studied extensively. HYPOTHESIS: The study was undertaken to evaluate the association of CRP, PMA, and cardiac troponin I (cTnI) in patients admitted with non-ST elevation acute coronary syndromes (NSTE-ACS). METHODS: In all, 69 consecutive patients with NSTE-ACS, 58 patients with stable angina pectoris (SAP), and 46 control patients without coronary artery disease were selected; PMA, sP-selectin, sCD40L inter leukin, (IL)-6, CRP, and cTnI concentrations were measured in these patients at the time of admission. Patients with NSTE-ACS were classified into two groups: those with troponin normal (cTnI < 0.06 ng/ml) and those with troponin elevation (cTnI > or = 0.06 ng/ml). Their risk for clinical in-hospital cardiac events (death and nonfatal myocardial infarction) was analyzed. RESULTS: Compared with SAP and control, patients with NSTE-ACS exhibited higher levels of PMA, sP-selectin, sCD40L, IL-6, and CRP. All these parameters were found to be higher (p < 0.001 ) in patients with troponin elevation than in those with normal troponin. There was a significant relationship between PMA and CRP (r =0.628, p < 0.001) and cTnI (r = 0.557, p < 0.001) in patients with NSTE-ACS. Logistic analysis further demonstrated that the presence of elevated PMA, CRP, and cTnI levels each confers and increases risk of future cardiac events. CONCLUSIONS: Levels of PMA and CRP were significantly increased in patients with NSTE-ACS, especially in those with troponin elevation. This increase is strongly related to the risk of in-hospital cardiac events. A panel of PMA, CRP, and cTnI may provide important information additional to current laboratory data for the treatment of NSTE-ACS.
Authors:
Song-Zhao Zhang; Ya-Ping Jin; Guang-Ming Qin; Jun-Hong Wang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical cardiology     Volume:  30     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-02-05     Completed Date:  2007-04-05     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  26-31     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2007 Wiley Periodicals, Inc.
Affiliation:
Department of Clinical Laboratory Medicine, the Second Affiliated Hospital of Zhejiang University, No. 88 Jiefang Road, Hangzhou 310009, P.R. China. zsongz@hotmail.com
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MeSH Terms
Descriptor/Qualifier:
Aged
Angina Pectoris / blood*
Biological Markers / blood
C-Reactive Protein / analysis*
Cell Aggregation
Coronary Artery Disease / blood*
Female
Humans
Inflammation / blood
Inflammation Mediators / blood
Male
Middle Aged
Monocytes / physiology
Myocardial Infarction / blood*
Platelet Activation*
Platelet Aggregation*
Predictive Value of Tests
Troponin I / blood*
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Inflammation Mediators; 0/Troponin I; 9007-41-4/C-Reactive Protein

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