Copyright © 2001 by the European Society of Cardiology.
Early increase in levels of soluble inter-cellular adhesion molecule-1 (sICAM-1). Potential risk factor for the acute coronary syndromes
a Portiuncula Hospital, Ballinasloe, Co. Galway, Republic of Ireland
b Royal Infirmary of Edinburgh, Lauriston Place, Edinburgh, UK
c Cardiovascular Research Unit, Edinburgh, U.K.
d Cardiovascular Research, Department of Medical and Radiological Sciences, Cardiology, The University of Edinburgh, Edinburgh, Scotland, U.K.
revised October 2, 2000; accepted October 4, 2000
Abstract
Background Studies have shown disparate results in relation to the role of plasma concentrations of cell adhesion molecules in atherosclerosis. Moreover, the differentiation of primary vs secondary alterations of these markers, in response to myocardial injury, has not been clear. We measured specific soluble cell adhesion molecules and inflammatory markers in men admitted acutely with chest pain and compared them to healthy controls.
Methods and Results We prospectively studied men (total n=241), admitted acutely with chest pain (7·4±9·4h, 71% within 10h), unstable angina (n=67), acute myocardial infarction (n=47) and chest pain without ischaemic heart disease (n=45) and compared them with a stratified sample of randomly selected healthy controls (n=82). Soluble intercellular adhesion molecule (sICAM-1), endothelial selectin, vascular cell adhesion molecule, interleukin-6 and C-reactive protein were measured by ELISA and P-selectin expression by flow cytometry. Multiple regression analysis was used to control for the impact of classical risk factors. At baseline ICAM-1, interleukin-6 and C-reactive protein were significantly elevated in patient groups whereas no difference in vascular cell adhesion molecule or endothelial selectin was found. At 3 month follow-up, ICAM-1 level was unchanged in ischaemic heart disease patients. In all groups C-reactive protein and interleukin-6 levels were lower at review. ICAM-1 levels at follow-up were higher in ischaemic heart disease groups (but not in chest pain without ischaemic heart disease) relative to controls and remained so only in the unstable angina group following regression. sICAM-1, interleukin-6 and C-reactive protein strongly correlated with smoking. In the acute phase, ICAM-1 was confounded by smoking following regression and C-reactive protein and interleukin-6 remained significant in both ischaemic heart disease groups after multiple regression. There was no relationship to events which occurred in 23% of ischaemic heart disease patients (further acute myocardial infarction 5·3%, sudden cardiac death 0·9% or recurrent angina 16·7%).
Conclusion We found an inflammatory response with higher sICAM-1, interleukin-6 and C-reactive protein in patients presenting soon after developing an acute coronary syndrome. As sICAM-1 was not affected by the acute event this plasma marker may be an important risk factor for the development of the acute coronary syndrome, particularly unstable angina.
Key Words: Acute coronary syndrome, intercellular adhesion molecule, risk factor, inflammation
f1 Correspondence: K. A. A. Fox, Cardiovascular Research, Department of Medical and Radiological Sciences, Cardiology, The University of Edinburgh, Royal Infirmary of Edinburgh, Lauriston Place, Edinburgh EH3 9YW, U.K.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  M. E. Bertrand, M. L. Simoons, K. A.A. Fox, L. C. Wallentin, C. W. Hamm, E. McFadden, P. J. De Feyter, G. Specchia, and W. Ruzyllo Management of acute coronary syndromes in patients presenting without persistent ST-segment elevation Eur. Heart J., December 1, 2002; 23(23): 1809 - 1840. [Full Text] [PDF]
|
|
|
|
|
|
N.T. Mulvihill, B. Foley, P. Crean, and M. Walsh Prediction of cardiovascular risk using soluble cell adhesion molecules Eur. Heart J., October 2, 2002; 23(20): 1569 - 1574. [Full Text] [PDF]
|
|
|
|
 |
|
 A. D. Pradhan, N. Rifai, and P. M. Ridker Soluble Intercellular Adhesion Molecule-1, Soluble Vascular Adhesion Molecule-1, and the Development of Symptomatic Peripheral Arterial Disease in Men Circulation, August 13, 2002; 106(7): 820 - 825. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P.J.M. Best and B.J. Gersh Cell adhesion molecules and inflammation in acute coronary syndromes: markers and emerging risk factors Eur. Heart J., July 2, 2001; 22(14): 1155 - 1159. [PDF]
|
|