scholarly journals Soluble Urokinase‐Type Plasminogen Activator Receptor and High‐Sensitivity Troponin Levels Predict Outcomes in Nonobstructive Coronary Artery Disease

Author(s):  
Ahmed Al‐Badri ◽  
Ayman Samman Tahhan ◽  
Nabil Sabbak ◽  
Ayman Alkhoder ◽  
Chang Liu ◽  
...  
2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
J Nikorowitsch ◽  
T Borchardt ◽  
S Appelbaum ◽  
F Ojeda ◽  
K J Lackner ◽  
...  

Abstract Introduction Stratification for subsequent coronary events among patients with coronary artery disease (CAD) is of considerable interest due to the potential to guide secondary preventive therapies. Soluble urokinase-type plasminogen activator receptor (suPAR) is expressed on various cells involved in atherogenesis and plaque instability, and has been associated with poor clinical outcomes in patients with various conditions. Purpose In this study we investigated the potential role of suPAR as a prognostic biomarker for adverse outcome in patients with CAD, and acute coronary syndrome (ACS) in particular. Methods Plasma levels of suPAR were measured in a cohort of 1,703 patients (AtheroGene Study) with documented coronary artery disease –including 626 patients with ACS and 1077 patients with stable angina pectoris (SAP). The main outcome measures were defined as cardiovascular death and non-fatal myocardial infarction (MI). Survival curves for the endpoints considered were computed according to thirds of the suPAR distribution. The equality of survival curves was tested using the log-rank test. Multivariable models adjusted for common cardiovascular risk factors and the biomarkers CRP, NT-proBNP and high-sensitivity troponin I (hs-TnI) in particular were also computed. Results The prognostic utility of suPAR was evidenced by survival curves stratified for tertiles of circulating suPAR levels –both, in the overall cohort (p=0.00062), and in the ACS cohort (p=0.00099) with a median follow-up of 3,5 years. In multivariable-adjusted Cox regression analyses the hazard ratio (HR) for the prediction of cardiovascular death was 3.60 for log-transformed suPAR levels (p<0.001) in the overall CAD cohort, whereas it was 3.34 (p=0.003) in the ACS cohort. The HR regarding prediction of the combined outcome cardiovascular death and/or non-fatal MI during follow-up was 2.19 (p<0.001) in the overall cohort, and 2.56 (p<0.001) in the ACS cohort. After multivariate adjustment, including conventional cardiovascular risk factors and hs-TnI, suPAR, after log transformation, still enabled a reliable and strong prediction of future cardiovascular death with a HR of 3.17 (p<0.001) in the overall CAD cohort, and a HR of 2.85 (p=0.014) in the ACS cohort. Conclusions Our study demonstrates that suPAR has a strong prognostic value independent of hs-TnI in secondary prevention settings, and thereby might represent a valuable biomarker for risk estimation in CAD. Acknowledgement/Funding Stiftung Rheinland-Pfalz für Innovation, European Union 7th Framework Programme, DZHK e.V., ERA-Net, Abbott Diagnostics


Cardiology ◽  
2016 ◽  
Vol 135 (2) ◽  
pp. 98-107 ◽  
Author(s):  
Yan Zhang ◽  
Wei Chen ◽  
Lian-feng Chen ◽  
Xuan Wang ◽  
Jeffrey Hsu ◽  
...  

Objectives: This study sought to investigate the clinical correlates and prognostic roles of urokinase-type plasminogen activator receptor (uPAR) on circulating monocytes in patients with coronary artery disease (CAD). Methods: 263 angina patients were included in this study. The percentage of uPAR expressing monocytes (PUEM) and the mean fluorescence intensity (MFI) index of uPAR were measured using flow cytometry. Patient follow-up was on average 604 days. Major adverse cardiac events (MACE) were defined as a composite of cardiac death, reinfarction, acute heart failure and hospitalization for revascularization. Results: The PUEM and MFI index levels were significantly more elevated in acute coronary syndrome patients than in stable ones. uPAR expressions on circulating monocytes at admission were correlated to inflammatory biomarkers and myocardial necrosis. Logistic regression analysis revealed that PUEM ≥15% (OR 21.96, 95% CI 7.31-65.98, p < 0.001) and uPAR MFI index ≥3.00 (OR 3.54, 95% CI 1.18-10.59, p = 0.024) were independent determinants of clinical instability in patients with CAD. When followed up, a high PUEM level at admission was an independent prognostic parameter for long-term MACE (HR 3.99, 95% CI 1.31-12.11, p = 0.015). Conclusions: uPAR expression on circulating monocytes is associated with clinical instability and myocardial necrosis and independently predicts the risk of MACE in patients with CAD.


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