BLOOD FLOW CONDITION IN LOWER EXTREMITY VESSELS AND ENDOTHELIAL DYSFUNCTION IN PATIENTS WITH TYPE 2 DIABETES MELLITUS DEPENDING ON DISEASE DURATION

Abstract

The purpose of the study. Study arterial blood flow and blebbing of the plasma membrane of lymphocytes in the neuroischemic form of diabetic foot syndrome (SDS) depending on the age of the disease. Material and methods. In a prospective study, 150 patients of type 2 DM were examined, of which 50 people with a neuroischemic form of SDS. Blood flow condition on vessels of lower extremities and plasma membrane of lymphocytes was examined. There were 30 women (60%), 20 men (40%). Vascular channel condition was evaluated by ultrasound dopplerography of lower extremity arteries, degree of diabetes mellitus compensation was determined by glycated hemoglobin level, lymphocyte membrane condition was evaluated by phase contrast microscope imaging results. Results of the study. 72% of patients had complete occlusion of the tibia-foot segment of the arteries of the lower extremity, 28% had stenosis. The glycated hemoglobin level averaged 10.3 [8.5; 14.3]%, i.e. all observed patients had insufficient compensation for carbohydrate metabolism disorders. The total and terminal lymphocyte blebbing was 30.1 [25.4; 33.2]% and 15.8 [11.8; 18.4]%, which was 3 and 5 times higher than the control group, respectively. A high positive correlation between the duration of DM disease and the total (rS=0,72; p = 0.001) and terminal (rS=0,78; p = 0.001) blebbing of lymphocyte membrane. Conclusion. The high correlation between the timing of DM disease and the blebbing of the lymphocyte plasma membrane allows these indicators to be used as markers of endothelial dysfunction in neuroischemic and ischemic forms of SDS. The level of summary and terminal blebbing can be considered as a prognostic marker of the development of macroangiopathy in patients with type 2 DM.

Keywords

• diabetes mellitus
• atherosclerosis
• ischemia
• hemodynamics
• blebbing
• glycated hemoglobin