MULTIMARKER DIAGNOSTIC PANELS FOR ATHEROSCLEROSIS

Aim. To consider an opportunity for application of different combinations of biochemical and bioimaging parameters to create different multimarker diagnostic panels designed for assessment of risk of coronary atherosclerosis and its complications.

Material and methods. To the analysis, data included, obtained from patients 18 y.o. and older (n=502), investigated at NMRCPR of the Ministry of Health in 2011-2013, who had undergone diagnostic coronary arteriography and duplex carotid scanning. Atherosclerosis burden was measured according the Gensini score. Subfractional spectrum of apoB-lipoproteides was assessed with the Quantimetrix Lipoprint LDL System (USA), biochemistry was done with standard lab. methods. Statistics was done with software Statistica v.10, IBM SPSS Statistics v.20, SAS v.9.4.

Results. Several multimarker combinations (panels) for non-invasive estimation of risk of coronary atherosclerosis detection and its severity were proposed. These are 1) an index K, calculated as ratio of the sum of potentially atherogenic subfractions to the large physiologically active LDL1 particles; index K >1,7 indicates an increased atherogenic potential of apo B-containing particles even with normal lipid profile, and can be used for non-invasive prediction of coronary atherosclerosis; 2) duplex complexes as adiponectin to endothelin ratio which <7,0 is associated with coronary atherosclerosis risk only in men, and as leptin to insulin ratio which <3,5 is associated with elevated atherosclerosis risk only in women; 3) integrated biomarker BIO represented the combination of individual visual and biochemical variables and permitted to discriminate patients from those with no coronary atherosclerosis or having subclinical or severe atherosclerotic lesions.

Conclusion. Proposed multimarker diagnostic panel could be regarded as novel potential biomarkers of coronary atherosclerosis risk and severity, however validation of these markers is necessary. The problem of cardiovascular risk stratification and further prevention activities should be solved with the search for novel markers and combinations of markers.

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