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[Level of mannose-binding lectin and phagocytic activity of leukocytes in patients with acute coronary syndrome].

UNLABELLED
Mannose-binding lectin (MBL) is a key component of innate immunity that starts one of the ways of complement activation. Factors of neutrophil activation are cell factors of innate and acquired immunity.


AIM
to study MBL levels and factors of neutrophil activation in patients with acute coronary syndrome (ACS).


METHODS
A total of 45 patients with ST elevation (STE) ACS and non ST-elevation (NSTE) ACS were enrolled in the study, 15 persons were age-matched controls. RESULTS. Compared with control group MBL level was higher in patients with ACS (52.7 vs 127.2 hg/ml, respectively, p = 0.07), and significantly higher in patients with NSTE ACS (52.7 vs. 164.7 hg/ml, p = 0.03). There was no difference between MBL levels in STE ACS and NSTE ACS patients. Patients with inferior myocardial infarction (MI) had significantly higher MBL level than those with anterior MI (182.8 -92.7 hg/ml, p = 0.02). Patients with concomitant diabetes had statistically higher MBL level than patients without diabetes (225 vs 100 hg/ml, OR 2.25, p = 0.03). MBL level was lower in patients with low (<40%) ejection fraction - 92.7 vs 148.9 hg/ml in patients with EF > or = 40% (p = 0.19). No difference of neutrophil activation factors between ACS patients and controls was found (phagocytic activity of neutrophils 74.5 vs 74.3%, phagocytic number 3.34 vs 4.36, phagocytic reserve 88 vs 85.5 in ACS and control group, respectively).


CONCLUSION
Elevated innate immunity factor (MBL) level was associated with ACS, especially in patients with diabetes mellitus. No association between cell immunity factors with ACS was found.