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Year : 2016  |  Volume : 28  |  Issue : 2  |  Page : 71-77

The value of YKL-40 in ischemic heart disease patients

1 Department of Internal Medicine, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
2 Department of Cardiology, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
3 Department of Clinical Pathology, National Liver Institute, Menofia University, Al Minufya, Egypt

Correspondence Address:
Doaa S.E Zaky
Departments of Internal Medicine, Faculty of Medicine for Girls, Al-Azhar University, Cairo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1110-7782.193891

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Introduction Atherosclerotic coronary artery disease is considered to be the most common cause of myocardial ischemia. YKL-40, a chitin-binding acute phase glycoprotein, has been found to be expressed by macrophages in atherosclerotic plaques. The YKL-40 could potentially be a new useful biomarker to monitor severity and predict early diagnosis of acute coronary syndrome (ACS) in ischemic heart disease (IHD) patients. Aim The aim of this study was to measure the level of serum YKL-40 in IHD patients and to clarify its role as a potentially beneficial diagnostic marker in those patients. Patients and methods Serum YKL-40 was measured in 60 IHD patients and 30 healthy controls. According to chest pain analysis, ECG changes, and cardiac enzymes, the IHD patients were categorized into patients with stable angina and patients with ACS. Results The median level of YKL-40 (pg/ml) was significantly elevated in patients with IHD compared with the control group (2080 (575.5–5974.6) vs 522.6 (133.2–769.5), respectively; P<0.001). The median level of YKL-40 was also significantly higher in patients with ACS compared with patients with stable angina (2436 (576–5975) vs 1015 (675–1822), respectively; P˂0.001). There was a positive correlation between YKL-40 levels and high-sensitivity C-reactive protein (mg/dl) in all studied groups of IHD patients. However, no significant correlation was detected between YKL-40 and age, systolic or diastolic blood pressure, and lipid profile in patients with IHD. Conclusion YKL-40 might play an important role as a diagnostic and prognostic marker in patients with IHD and in patients with ACS.

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