D Yu Maychuk, A A Tarkhanova, M R Taevere, A V Shatskih, S A Sudakova
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Abstract
Purpose: This article presents the first clinical results of intravital morphological verification of epithelial and stromal keratitis associated with betaherpesviruses.
Material and methods: The study group included 12 patients (12 eyes) diagnosed with herpetic keratitis. During the initial visit to the clinic, each patient underwent a standard ophthalmological examination, as well as a number of laboratory tests: immunochemical analysis of blood, molecular diagnostics, and confocal microscopy. Histological study of the cornea was additionally performed in cases indicated for surgical treatment (2 patients).
Results: According to enzyme-linked immunoelectrodiffusion essay (ELISA), acute-phase immunoglobulins of class M (Ig M) to cytomegalovirus (CMV) were detected in only one clinical case. Class G immunoglobulins (Ig G) to both CMV and human herpes virus type 6 (HHV-6) were detected in the majority of cases. Quantitative polymerase chain reaction (qPCR) revealed CMV DNA in tears (2 patients) and in saliva (4 patients). The HHV-6 genome was found in tears (2 patients) and in saliva (3 patients). According to the results of confocal microscopy, owl's eye cells were found in 8 patients of the group. Histological examination of the cornea helped identify pathognomonic cells in one case. Thus, 8 patients of the group were diagnosed with keratitis associated with the betaherpesvirus subfamily.
Conclusion: Results of observation of the study patients suggest the possibility of developing keratitis associated with the subfamily of betaherpesviruses with localization in the superficial layers of the cornea. Confocal microscopy can be useful for identification of pathognomonic owl's eye cells in the corneal tissues and confirmation of the diagnosis of betaherpesvirus-associated keratitis. Investigation of the etiological factor of superficial and stromal viral keratitis is important for determining the further tactics of pharmacotherapy.
期刊介绍：
The journal publishes materials on the diagnosis and treatment of eye diseases, hygiene of vision, prevention of ophthalmic affections, history of Russian ophthalmology, organization of ophthalmological aid to the population, as well as the problems of special equipment. Original scientific articles and surveys on urgent problems of theory and practice of Russian and foreign ophthalmology are published. The journal contains book reviews on ophthalmology, information on the activities of ophthalmologists" scientific societies, chronicle of congresses and conferences.The journal is intended for ophthalmologists and scientific workers dealing with clinical problems of diseases of the eye and physiology of vision.
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