[THE ANALYSTS OF PROCALCITONIN IN LACRIMAL FLUID AND BLOOD SERUM UNDER UVEITIS]

The analysis was applied to concentration of procalcitonin in lacrimal fluid and blood serum in 15 healthy persons (control group), 16 patients with uveitis (main group) and 14 patients with non-inflammatory pathology of organ of vision (comparison group). The concentration of procalcitonin was detected by immunoenzyme method using commercial test-system "Procalcitonin-IFA-BEST" ("Vector-Best", Russia). The content of procalcitonin in blood serum was low (75% quartile--0.031 ng/ml) and had no significant difference between groups (H-criterion of Kruskal-Wallis test, p = 0.0872). The level of procalcitonin in lacrimal fluid 8-11 times exceeded its concentration in blood serum of all groups (Wilcoxon criterion, p0.005). The least content of procalcitonin is detected in lacrimal fluid of patients of comparison group (0.072 ± 0.064 ng/ml). In main and control groups its level was reliably higher (H-criterion of Kruskal-Wallis test, p = 0.0002) and amounted to 0.257 ± 0.146 and 0.198 ± 0.151 ng/ml correspondingly. The correlation analysis established no dependencies between concentration of procalcitonin in tear and blood serum (Spearman correlation coefficient had no exceeding |0.1| in all groups). The development of uveitis is not accompanied by alteration of concentration of procalcitonin in both blood serum and lacrimal fluid. The absence of correlation and higher concentration of procalcitonin in tear as compared with blood serum testify availability of additional source of this protein in lacrimal fluid.