Abstract
To evaluate the clinical significance of the data obtained during enzyme-linked immunosorbent assay (ELISA) of the blood serum of patients with inflammatory diseases of the anterior eye segment compared to a group of healthy volunteers. A retrospective analysis of the results of serum ELISA of 200 patients with chronic keratoconjunctivitis and keratouveitis was performed using the solid-phase IFA method in order to detect the presence of antibodies to herpes simplex viruses of 1 and 2 types (HSV 1, 2), cytomegalovirus (CMV), Chlamydia trachomatis and Toxoplasma gondii. The control group consisted of 34 healthy volunteers with no signs of inflammation of the eye tissue. There were no significant differences in the frequency of detection of both «acute-phase» IgM and «chronic» IgG to HSV and CMV between patients of the main group and healthy volunteers (ρ≥0.05). The levels of IgG to Toxoplasma gondii in the study group were three times higher than in the control group (ρ≤0.05). A comparative analysis of the frequency of detection of antibodies to Chlamydia trachomatis showed statistically significant differences between the groups and more frequent detection of immunoglobulins classes A, G and M in patients with inflammatory eye diseases (ρ≤0.05). The absence of statistical differences with the control group in the frequency of detection of active HSV and CMV infections in patients with inflammatory diseases of the anterior eye segment when using ELISA allows to recommend the use of additional methods of examination such as polymerase chain reaction (PCR) and real-time PCR (RT-PCR) with identification of pathogen genetic material in the available biological secretions. The increase in IgG titers to toxoplasma in patients of the main group apparently indicates a cross-stimulation of antibody synthesis against the background of a chronic inflammatory process. Significant differences in the frequency of detection of all types of antibodies to chlamydiae suggests a significant etiological role of this pathogen in the development and maintenance of chronic inflammation in the anterior eye segment.
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