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    Assessment of the Relationship Between the Adropin Levels and the Coronary Collateral Circulation in Patients with Chronic Coronary Syndrome
    (Arquivos Brasileiros Cardiologia, 2022) Akkaya, Hasan; Gunturk, Ertugrul Emre; Akkaya, Fulya; Karabiyik, Ugur; Gunturk, Inayet; Yilmaz, Samet
    Background: Coronary collateral circulation (CCC) provides an alternative blood flow to myocardial tissue exposed to ischemia and helps to preserve myocardial functions. Endothelial-derived nitric-oxide (NO) production and vascular endothelial growth factor (VEGF) have been suggested as the most important factors in the development of CCC. Adropin is a peptide hormone responsible for energy hemostasis, and is known for its positive effects on the endothelium through NO and VEGF. Objective: The aim of this study is to investigate the association between adropin and the presence of CCC in patients with chronic coronary syndrome (CCS). Methods: A total of 102 patients with CCS, who had complete occlusion of at least one major epicardial coronary artery, were included in the study and were divided into two groups: the group of patients (n:50) with poor CCC (Rentrop 0-1) and the group of patients (n:52) with good CCC (Rentrop 2-3). The level of significance adopted in the statistical analysis was 5%. Results: Mean adropine levels were found as 210.83 +/- 17.76 pg/mL and 268.25 +/- 28.94 pg/mL in the poor and good CCC groups, respectively (p<0.001). Adropin levels proved to be positively correlated with neutrophil-to-lymphocyte ratios (r:0.17, p:0.04) and the rentrop scores (r:0.76, p<0.001), and negatively correlated with age (r:-0.23, p:0.01) and Gensini scores (r:-0.19, p:0.02). Adropin level is a strong independent predictor of good CCC development (OR:1.12, 95% CI:(1.06-1.18), p<0.001). Conclusion: This study suggests that adropin levels may be a possible factor associated with the presence of CCC in CCS patients.