CHARACTERISTICS OF IMMUNOREACTIVITY IN PATIENTS WITH VARIOUS FORMS OF DIABETIC FOOT ULCER

Abstract

The article presents a comparative assessment of the levels of cytokines that regulate the differentiation of various macrophage phenotypes, as well as immunological responses in patients with diabetes. We examined and treated 245 patients who were allocated to two groups. The first group comprised neuropathic patients (comparison subgroup 1A without DFU, n=30 and subgroup 1B with DFU, n=80). The second group included patients with neuroischemic type 2 diabetes (comparison subgroup 2A without DFU, n=35 and subgroup 2B with DFU, n=100). As an indicator of hyperglycemia, the glycated hemoglobin level (HbA1c) was used, which was determined on the DCA 2000 device by the method of latex immunoagglutination inhibition using the “Hemoglobin A1c Reagent kit”. The concentration of cytokines TNF-α, IFN-γ, IL-6, and OPG in blood serum was determined on the first day of hospitalization before surgery using enzyme immunoassay test systems (OOO “Cytokine”, St. Petersburg) in accordance with the manufacturer's instructions. An imbalance of cytokines was revealed, indicating a shift in immunomodulatory responses, aggravation of metabolic and vascular disorders in tissues, accompanied by an inadequate course of the inflammatory and reparative process and the formation of a diabetic foot ulcer.