Interrelation between ofsystemic inflammation factors and cardiovascular calcification factors in patients of chronic kidney disease 5D stage

Abstract

BACKGROUND. The role of inflammation and uremic intoxication in the development and progression of bone mineral dis­orders, including cardiovascular calcification, has been actively studied over the past decades. PATIENTS AND METHODS. A single-stage, cohort study of 85 patients with stage 5D CKD treated with programmatic hemodialysis was conducted. The blood concentrations of interleukin-3 (IL-3) and interleukin-6 (IL-6) were determined using the enzyme immunoassay, the level of fibrinogen - using the Rutberg method, and the level of p2-microglobulins - using the nephelometric method. The blood leu­kocyte shift index (ISLC) and the Glasgow Prognostic Score (GPS) risk index for systemic inflammation were also calculated, taking into account the level of C-reactive protein (CRP) and blood albumin. The presence of valvular calcification, its severity, and calcification of the abdominal aortic wall was recorded. Statistical analysis was performed using the program STATISTICA 12.6 ("StatSoft", USA). THE AIM: to evaluate the relationship between factors of systemic inflammation and cardiovascular cal­cification in patients with stage 5D chronic kidney disease. RESULTS. The risk of detecting calcification of the aorta and heart valves was influenced by the pro-inflammatory cytokines IL-3 and IL-6, as well as ISLK and GPS. However, inflammatory fac­tors such as fibrinogen, p2-microglobulin, and CRP levels in the blood did not show a statistically significant effect. In the case when the predicted parameter was chosen not friendly calcification, but the presence of any of its components, the predictive significance of IL-3 decreased, but IL-6 remained. The 20% risk threshold was exceeded at IL-6 values of more than 33 pg/ml. The effect of ISLC on the probability of detection of calcification was shown both about friendly calcification and concerning isolated calcification of the aorta or valves. CONCLUSION. It was found that among the studied factors of inflammation, IL-6, ILK, and IL-3 demonstrate a relationship with the processes of cardiovascular calcification, GPS-only in relation to friendly calcification. Nomograms have been developed that allow predicting the detection of cardiovascular calcification in dialysis patients, depending on the state of the inflammatory circuit.