The objective of this study was to evaluate the correlation between multiple cardiovascular risk factors (MCRFs) and circulating mononuclear cells (CMCs) in asymptomatic coronary artery disease patients. Design and Methods: 126 subjects (54 male), aged 48 to 62 years, with asymptomatic coronary artery disease (CAD) documented previously with angiography, and 25 healthy volunteers were enrolled in the study. The flow cytometric technique was used for predictably distinguishing cell subsets that depend on the expression of CD14, CD34, Tie-2, CD45, and CD309 (VEGFR2). Results: The analysis of the outcome obtained shows a trend of an increase in circulating CD45−CD34+ CMCs and a reduction in CMC population defined as CD14+CD309+ and CD14+CD309+Tie2+ in known asymptomatic CAD patients in comparison with healthy volunteers. Substantial correlations between CD45−CD34+ and conventional cardiovascular risk factors (hs-CRP, T2DM, serum uric acid and hypertension) were found in the patient cohort. The concentrations of CD14+CD309+ and CD14+CD309+Tie2+ CMCs had effect on such factors as T2DM (RR = 1.21; 95% CI = 1.10–1.40; p = 0.008), hs-CRP > 2.54 mg/L (RR = 1.29; 95% CI = 1.12–1.58; p = 0.006), Agatston score index (RR = 1.20; 95% CI = 1.15–1.27; p = 0.034), and occurrence of three and more cardiovascular risk factors (RR = 1.31; 95% CI = 1.12–1.49; p = 0.008). Conclusion: It is postulated that the reduction in circulating CD14+CD309+ and CD14+CD309+Tei2+ CMCs is related to a number of cardiovascular risk factors in asymptomatic patients with known CAD.

Aim: to evaluate the associations between signatures of apoptotic endothelial cell-derived microvesicles (MVs) with phenotypes of chronic heart failure (HF). Methods: The study cohort consisted of 388 prospectively involved subjects with HF patients with predominantly reduced left ventricular ejection fraction (HFrEF), HF with preserved ejection fraction (HFpEF) and HF with mid-range ejection fraction (HFmrEF). All biomarkers were measured at baseline. Results: The number of circulating CD31+/annexin V+ MVs in HFrEF and HFmrEF patients was similar. The number of circulating CD144+/annexin V+ MVs in HFrEF patients was significantly higher than HFmrEF and HFpEF. We determined that a combination of number of circulating CD31+/annexin V+ MVs and Gal-3 was the best predictor of HFpEF and that number of circulating CD144+/annexin V+ MVs is able to increase predictive capabilities of soluble ST2 (sST2) and Gal-3 for HFrEF. Conclusion: We found that the number of circulating CD31+/annexin V+ MVs may improve a predictive capacity for conventional HF biomarkers.

Endothelial Progenitor Cells (EPCs) is a population of mononuclear cells that expresses endothelial and progenitor markers i.e., CD34+ antigen and VEGFR-2+ vascular growth ligands (Vascular Endothelial Growth Factor Rreceptor-2), CD133+, as well as CD14+, and Tie2+ (tyrosine kinase ligand) [8]. EPCs may play a pivotal role in mechanisms of tissue repair, maturation of endothelial cells, angiogenesis, and revascularization [9]. EPCs are mobilized from bone marrow and probably from peripheral tissues upon injury in result in growth factors and inflammatory cytokines over production [10]. There are evidences regarding elevated EMPs as a marker of ED [11]. Indeed, increased production of reactive oxygen species, insulin

PLASMA OSTEOPROTEGERIN AS A MARKER OF DOCUMENTED CORONARY ATHEROSCLEROSIS IN TYPE TWO DIABETES MELLITUS PATIENTS

ÖZETAmaç: Serum ürik asit (ÜA) kronik kap yetmezliğinin (KKY) doğal ilerleyişinin bir belirteci olarak bilinir. KKY ilerlemesi kanda dolaşan mononükleer projenitör hücrele-rin (MPH) azalması ile birliktedir. Bu çalışmanın amacı iskemik KKY'li hasatlarda serum ÜA ve proanjiyojenik MPH konsantrasyonları arasındaki ilişkiyi değerlendirmektir.Yöntemler: Bu çalışma kontrastlı bilgisayarlı tomografi anjiyografisi ile koroner arter hastalığı (KAH) tanısı alan KKY'li 126 hastada (54 erkek)retrospektif olarak yapıl-mıştır. Serum ÜA enzimatik yöntemle ve N-terminal proB-NP (NT-pro-BNP) düzeyi immünoelektrokemilüminesens yöntemi ile çalışıldı. Bulgular: Serum ÜA konsantrasyonları kuartallar olarak değerlendirildi (Me; IQR): QI=20.11 (19.06; 22.33) mmol/l; QII=27.53 (23.2; 31.10) mmol/l; QIII=35.80 (32.0; 39.0) mmol/l ve QIV=44.9 (40.00; 49.60) mmol/l. Serum ÜA'e göre düzeltilmiş Cox oransal Odds oranı analizleri CD14+CD309+ ve CD14+CD309+Tie2+ MPH için SUA Quartiles (Q) ile yapıldı ve Yüksek serum ÜA Q (Q3 ve Q4) ve düşük Q (Q1 ve Q2)'nin artmış CD14+CD309+ ve CD14+CD309+Tie2+ MPH tükenme riski ile birlikte olduğu gösterildi. ROC analizi ile serum ÜA 31,5 mmol/l değeri MPH azalma riski için en iyi potansiyel cut-off değeri olarak belirlendi.Sonuç: Konjestif kalp yetmezliği bulunan hastalarda dolaşan proanjiyojenik MPH, serum ÜA kuartallarına bağlı olarak ilerleyici bir şekilde azaldı. Serum ÜA'de hafif artı-şın düşük proanjiyojenik MPH'nin bir öngördürücüsü olarak kabul edilebilir.Anahtar kelimeler: Kronik kalp yetmezliği, serum ürik asit, dolaşan mononükleer projenitör hücreler, prediktif değer ABSTRACT Objective: Serum uric acid (UA) is considered as a marker of natural progression of chronic heart failure (CHF). Progression of CHF associates with declining of circulating mononuclear progenitor cells (MPCs) in the blood. The objective of this study was to evaluate the interrelationship between SUA concentrations and proangiogenic MPCs in ischemic CHF patients. Methods:The study was structured retrospectively after determining the coronary artery disease (CAD) by contrast-enhanced spiral computed tomography angiography in 126 subjects (54 male), aged 48 to 62 years, with CHF. Serum UA level was measured by enzymatic method and N-terminal proBNP (NT-pro-BNP) level was examined by immunoelectrochemiluminesence method. All biomarkers were measured at baseline. Results:Concentrations of SUA were distributed by quartiles (Me; IQR): QI=20.11 (19.06; 22.33) mmol/l; QII=27.53 (23.2; 31.10) mmol/l; QIII=35.80 (32.0; 39.0) mmol/l; and QIV=44.9 (40.00; 49.60) mmol/l. Cox proportional adjusted Odds Ratios analyses for CD14+CD309+ and CD14+CD309+Tie2+ MPCs 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+ MPCs. The ROC analysis has been showed that there was the cut-off point for the SUA level with the best prognostic potential on the risk of decreasing MPCs in both models equal 31.5 mmol/l. Conclusion:Circulate...