Clinical and diagnostic significance of determining the cytokine status in infants with chronic cytomegalovirus infection against the background of hypoxic-ischemic CNS damage

Abstract

Objective: based on the production of cytokines, to identify the immunological features of the chronic course of cytomegalovirus infection in children of the first year of life against the background of hypoxic-ischemic CNS damage.Research methods:108 newborns with cytomegalovirus infection occurring against the background of perinatal hypoxic-ischemic lesions of the central unequal system were examined. All observed patients immediately after the diagnosis of cytomegalovirus infection underwent an immunological examination, including the determination of the levels of interferon-alpha (IFN-α) and interferon-gamma (IFN-γ), the level of interleukins — 2 and 4 (IL -2 and IL-4) necrosis factor human alpha tumors (TNF-α in blood serum was determined by enzyme immunoassay using a set of reagents ProCon IF2 plus, ProCon Ifgamma, ProCon TNFα (Protein contour LLC, Russia, St. Petersburg). At 1 and 6 months of life .The observation groups consisted of 78 children (72.2%) with an acute course of the disease (Group 1) and 30 children (27.3%) with a chronic course (Group 2). The control group consisted of 15 newborns without herpes virus infection.Results. Of the totality of the studied cytokines, statistically significant for the chronic course of cytomegalovirus infection in children of the first year of life against the background of hypoxic-ischemic CNS damage were found: IL-2, IFN-γ. It was found that in children with a persistent low level of IFN-γ and an increased level of IL-4 in the blood serum at the age of 6 months, there was a chronic course of cytomegalovirus infection against the background of perinatal hypoxic-ischemic CNS damage.A decrease in IFN-γ production indicates a congenital or acquired deficiency of the interferon system and can be considered as an indication for long-term interferon replacement therapy.