Abstract
Objective. To study the prevalence of the main risk factors and the value of proinflammatory cytokines in patients with acute coronary syndrome (ACS) depending on the determined level of serum myostatin. Materials and methods. 120 patients with ST elevation ACS (STE-ACS) and non-ST-segment elevation ACS (NSTE-ACS), hospitalized in the cardiology department of the regional vascular center were examined. In 86 patients, the level of serum myostatin and proinflammatory cytokines was determined on the 5th day of the development of acute coronary syndrome. Results. Patients were divided into two subgroups depending on the level of serum myostatin which was determined: group 1 – with a lower level of myostatin, group 2 – with a higher level of myostatin. Group 1 (serum myostatin level from 0.038 to 0.084 ng/ml) consisted of 23 patients (16 males). Group 2 (serum myostatin level from 0.137 to 0.630 ng/ml) contained 21 patients (14 males). The main risk factors for cardiovascular diseases such as family history of early development of cardiovascular diseases, smoking, dyslipidemia, obesity, arterial hypertension and type 2 diabetes mellitus were assessed. The levels of pro-inflammatory cytokines were determined. Tumor necrosis factor alpha (TNF-alpha) and interleukin 18 (IL-18) levels were significantly higher in patients with higher myostatin levels. Correlation analysis revealed a relationship between serum myostatin concentration and TNF-alpha level (r = 0.34; p = 0.0016). Conclusions. No differences in the prevalence of risk factors in patients with ACS and different myostatin levels, except for smoking were revealed in the study, the frequency of smoking was higher in the group with higher myostatin levels. Greater activity of pro-inflammatory cytokines TNF-alpha and IL-18 was revealed in patients with higher levels of myostatin, as well as a significant correlation between the level of myostatin and TNF-alpha.
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