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  • Title: Leukocyte counts and concentrations of soluble adhesion molecules as predictors of coronary atherosclerosis.
    Author: Ikata J, Wakatsuki T, Oishi Y, Oki T, Ito S.
    Journal: Coron Artery Dis; 2000 Sep; 11(6):445-9. PubMed ID: 10966129.
    Abstract:
    BACKGROUND: Authors of recent studies have reported that there is a relationship between level of adhesion molecules and atherosclerosis. In an animal study it was demonstrated that there is an interaction between adhesion molecules and leukocytes in atherosclerotic tissue. OBJECTIVE: To study the relationships between coronary-artery atherosclerosis and both differential blood-leukocyte count and concentrations of soluble adhesion molecules in patients with and without coronary artery disease (CAD). METHODS: Our subjects were 168 patients who underwent diagnostic coronary angiography. Forty-eight patients had normal coronary angiograms (control group), and 120 patients had significant coronary-artery stenoses (diameter stenosis > 70%) in at least one major coronary-artery branch (CAD group). Total and differential blood-leukocyte counts, and concentrations of soluble intercellular adhesion molecule-1 (sICAM-1) and vascular cell adhesion molecule-1 (sVCAM-1) were assayed prior to angiography. RESULTS: Monocyte counts for patients in the CAD group were significantly greater than those for patients in the control group (366 +/- 99 versus 258 +/- 44/microl, P < 0.0001), as were the sICAM-1 concentrations (272 +/- 52 versus 203 +/- 24 ng/ml, P < 0.0001). The mean concentrations of sVCAM-1 in members of the two groups were the same (671 +/- 138 versus 668 +/- 97 ng/ml, P=0.4). There was a higher incidence of significant coronary-artery stenosis among patients with both a high monocyte count and a high concentration of sICAM-1 (> or = mean + SD) than there was among patients with a low monocyte count and a low concentration of sICAM-1 (> or = mean - SD; 100 versus 25%, P < 0.0001). CONCLUSIONS: Higher levels both of monocyte counts and of serum concentrations of ICAM-1 may serve as markers for coronary atherosclerosis.
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