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DOI: 10.18413/2658-6533-2024-10-1-0-10

The effect of interleukin-10 gene polymorphism in the formation of deep disorders of vaginal microbiocenosis in bacterial vaginosis

Background: Bacterial vaginosis (BV) is a common vaginal infection that causes significant gynecological and obstetric morbidity. Despite modern methods and treatment regimens, BV therapy remains a difficult task due to high rates of relapses, which amount to 60% within a year after treatment. This problem, in part, can be solved by assessing the individual genetic characteristics of the organism associated with the presence of allelic variants of the immune system genes that determine the constitutional possibility of a high or low level of synthesis of the corresponding immunocompetent molecules (cytokines, pattern-recognition receptors, etc.). The aim of the study:To determine the significance of the polymorphism -1082 G/A (rs1800896) of the gene IL-10 in the formation of various molecular biological profiles of vaginal microbiocenosis in bacterial vaginosis. Materials and methods: 195 women of reproductive age were examined, including 100 patients with bacterial vaginosis and 95 conditionally healthy women with vaginal normocenosis. The state of vaginal microbiocenosis was assessed by microscopic and molecular biological methods. The polymorphism -1082 G/A (rs1800896) of the IL-10 gene was genotyped using polymerase chain reaction and detection of amplification products on an electrophoresis gel. Results: Genotype G/G was more common in women with the prevalence of obligate-anaerobic microorganisms in the microbiocenosis (21.2%, p=0.046), genotype G/A – in women with severe mixed dysbiosis (61.3%, p=0.023). In women with a predominance of facultative anaerobes Gardnerella vaginalis and Atopobium vaginae in the microbiocenosis, there was no significant difference in the distribution of genotypes (p>0.05). Conclusion: The carriage of allelic variants -1082G (rs1800896) of the gene IL-10 is associated with deeper disorders of vaginal microbiocenosis, which suggests their use as markers that increase the effectiveness of the diagnosis of recurrent forms of bacterial vaginosis

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