Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki (Aug 2017)

The relationship between serum uric acid level and concentration of proangiogenic endothelial progenitor cells in chronic heart failure patients

  • A. A. Kremzer

DOI
https://doi.org/10.14739/2409-2932.2017.2.103764
Journal volume & issue
no. 2
pp. 173 – 180

Abstract

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Serum uric acid (SUA) is considered as a marker of nature progression of chronic heart failure (CHF) mediated cardiovascular remodeling. Progression of CHF associates with declining of circulating endothelial progenitor cells (EPCs) in the peripheral circulation. the objective of this study: to establish predictive relationship between the content of uric acid in the blood and the level of circulating endothelial progenitor cells in patients with CHF of ischemic origin. Methods: The study population was structured retrospectively in 126 subjects (54 male), aged 48 to 62 years, with mild-to-severe ischemic CHFSUA level was measured by enzymatic methods, NT-pro-BNP level was examined by immunoelectrochemiluminesence method. EPCs were determined as CD 34+ cells by the flowcytometric technique using High-Definition Fluorescence Activated Cell Sorter methodology. All biomarkers were measured at baseline. The study was approved by an institutional review committee. Results: Concentrations of SUA were distributed by quartiles (Me; IQR): QI=201,1 (190,6; 223,3) umol/l; QII=275,3 (232,0; 311,0) umol/l; QIII=358,0 (320,0; 390,0) mmol/l; and QIV=449,0 (400,0; 496,0) umol/l. We found an independent impact of SUA on counts of CD14+CD309+ EPCs (r=-0.388; P=0.001) and CD14+CD309+Tie2+ MPCs (r=-0.414; P=0.001), but on CD45+CD34+ EPCs (r=-0.214; P=0.22) and CD45-CD34+ MPCs (r=-0.16; P=0.16) did not. Cox proportional adjusted Odds Ratios analyses for CD14+CD309+ and CD14+CD309+Tie2+ EPCs by SUA Quartiles (Q) has showed that high Q (Q3 and Q4) of SUA versus low Q (Q1 and Q2) associated with increased risk of depletion of both CD14+CD309+ and CD14+CD309+Tie2+ EPCs. The ROC analysis showed that there was the cut-off point for the SUA level with the best prognostic potential on the risk of decreasing EPCs in both models equal 315,0 umol/l. Conclusion: Circulating level of proangiogenic EPCs phenotyped as CD14+CD309+ and CD14+CD309+Tie2+ is declined progressively depended on quartiles of SUA level in CHF subjects.

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