THE IMMUNE STATUS AMONG HEALTH WORKERS OF MEDICAL INSTITUTIONS OF THE EUROPEAN NORTH OF RUSSIA (ARKHANGELSK) AND THE KOLA NORTH (REVDA)
The results of the comparative analysis of the condition of immune system of medical workers living and working in different climatic and social conditions in Arkhangelsk and in Revda (Murmansk region) are presented. We have analyzed the results of immunological examination of 107 people working in medical institutions of Arkhangelsk and Revda. We studied the concentration of leukocytes, neutrophils, eosinophils, monocytes, lymphocytes, phagocytic index, the phenotypes of T- and B-lymphocytes, cytokines, CEA, immunoglobulins. Doctor's work is associated with activization of the cell-bound and the antibody-producing immune reactions with increase in blood of natural killers and cytotoxic lymphocytes with phenotype CD8<sup>+</sup>, and also IgA and IgE. This reaction is less expressed among working people in the Polar region and it seems it may be explained by some of inhibiting factors. It is lymphopenia, deficit of mature T- cells with phenotype CD3+, low concentration of IL-6 and CEA, higher level concentration of IL-10. The features of immune background of health workers from Revda can be caused by climate -ecological living conditions.