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Differences in inflammatory and thrombotic markers between unstable angina and acute myocardial infarction.

Abstract：

BACKGROUND:Unstable coronary syndromes are characterised by increased inflammatory process and endothelial activation. However, the underlying mechanisms of the acute coronary syndromes are still obscure. We evaluated the differences of inflammatory and thrombotic markers, at the acute phase of unstable angina (UA) and acute myocardial infarction (AMI). METHODS:The population of the study consisted of 216 subjects: 136 patients with UA, 57 patients with AMI and 23 healthy controls. Blood samples were taken by their admission to the hospital. Inflammatory and thrombotic markers were measured by ELISA. RESULTS:Patients with UA had significantly higher levels of interleukin-6 (IL-6), soluble vascular cells adhesion molecule (sVCAM-1) and von Willebrand factor (vWF) (p<0.05 vs controls), and lower levels of antithrombin III (ATIII) (p<0.01 vs controls) and protein C (PrtC) (p<0.05 vs controls). Similarly, patients with AMI had higher levels of IL-6, sVCAM-1, vWF and tissue plasminogen activator (tPA) (p<0.01 vs controls) and lower levels of ATIII (p<0.01 vs controls) and prtC (p<005 vs controls). Patients with AMI had significantly higher levels of vWF, tPA and sVCAM-1 compared to UA patients (p<0.05). CONCLUSIONS:Patients with unstable coronary syndromes had increased levels of IL-6, sVCAM-1 and vWF as well as decreased levels of ATIII and PrtC by their admission. However, patients with AMI had higher levels of all the endothelium-derived inflammatory (e.g. sVCAM-1) of thrombotic/fibrinolytic (e.g. tPA and vWF) markers, compared to those with UA. These findings imply that patients with myocardial infarction show further increase of endothelium-derived inflammatory and thrombotic markers compared to patients with unstable angina, in response to a similar proinflammatory stimuli.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Tousoulis D,Antoniades C,Bosinakou E,Kotsopoulou M,Tsoufis C,Marinou K,Charakida M,Stefanadi E,Vavuranakis M,Latsios G,Stefanadis C

doi

10.1016/j.ijcard.2006.03.011

subject

Has Abstract

pub_date

2007-02-07 00:00:00

pages

203-7

issue

eissn

0167-5273

issn

1874-1754

pii

S0167-5273(06)00392-5

journal_volume

115

pub_type

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Differences in inflammatory and thrombotic markers between unstable angina and acute myocardial infarction.