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Association of serum prolidase activity in patients with isolated coronary artery ectasia [Anatol J Cardiol]
Anatol J Cardiol. 2018; 19(2): 110-116 | DOI: 10.14744/AnatolJCardiol.2017.8160  

Association of serum prolidase activity in patients with isolated coronary artery ectasia

Erdal Aktürk, Lütfü Aşkın, Hüseyin Nacar, M. Hakan Taşolar, Serdar Türkmen, Mustafa Çetin, Mehmet Bozkurt
Department of Cardiology, Adıyaman University Training and Research Hospital; Adıyaman-Turkey

Objective: Coronary artery ectasia (CAE) is defined as an angiographic enlargement of a portion of the coronary artery between 1.5 and 2 times the diameter of the adjacent normal coronary artery. It has been demonstrated that increased serum prolidase activity (SPA) is associated with increased collagen turnover. We aimed to analyze the relationship between CAE and serum SPA levels.
Methods: This study used a prospective case protocol design. A total of 40 consecutive patients with isolated right CAE and normal coronary arteries (23 men, 17 women; mean age, 62.4±10.8 years) were evaluated. The control group included the same number of consecutive patients with angiographically normal coronary arteries (20 men, 20 women; mean age, 63.8±11.1 years). Clinical characteristics, laboratory results, cardiovascular risk factors, and medication use were recorded. SPA was measured using a spectrophotometer. Student’s t-test, Mann–Whitney U test, chi-square test, Pearson’s and Spearman’s correlations, logistic regression analysis, and ROC curve analysis were used for statistical analysis.
Results: SPA was significantly higher in the CAE group compared with the control group (1635.2±492.0 U/L and 986.2±422.3 U/L, respectively; p<0.001). The relationship of SPA with CAE proved to be significant (r=0.512; p<0.001). SPA also served as an independent predictor of CAE (OR=1.003; 95% CI, 1.001–1.005; p=0.002). The SPA value of 1170 U/L was predictive of CAE, with a sensitivity of 85% and specificity of 60% (AUC=0.854; 95% CI, 0.763–0.944; p<0.001).
Conclusion: The activity of this enzyme was significantly correlated with CAE.

Keywords: coronary artery ectasia, collagen turnover, serum prolidase activity


Erdal Aktürk, Lütfü Aşkın, Hüseyin Nacar, M. Hakan Taşolar, Serdar Türkmen, Mustafa Çetin, Mehmet Bozkurt. Association of serum prolidase activity in patients with isolated coronary artery ectasia. Anatol J Cardiol. 2018; 19(2): 110-116

Corresponding Author: Lütfü Aşkın


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