Репозиторий Университета

© 2019, Pleiades Publishing, Ltd. Preterm birth is not only medical, but also a social problem. The global goal of medicine is prevention of preterm labor and identification of risk factors leading to preterm birth. The objective of our study was to find the association between polymorphic markers in the cytokine IL-β, TNF-α, IL-1Ra, and IL-4 genes and development of preterm labor. The prospective study was conducted in 108 pregnant women with the risk of preterm birth. The main group consisted of 66 women whose pregnancy ended with preterm delivery despite the ongoing therapy. The comparison group included 42 women with the full-term delivery. The dominant T allele of the cytokine IL-1β gene polymorphism rs1143634 (3953C→T) was 7.6 times more common in women with preterm delivery vs. the comparison group (36.4 and 4.8%, respectively; RR, 1.802; 95% CI, 1.420–2.288; p < 0.05); its homozygous form was detected only in women with preterm delivery at the very early gestation age (less than 26 weeks). The dominant proinflammatory allele 2R of the IL-1 receptor antagonist gene (IL-1Ra) was 1.5 times more common in women with preterm delivery than in the comparison group (63.6 and 42.8%, respectively; RR, 1.400; 95% CI, 1.009–1.943; p < 0.05), which makes the 2R allele the risk factor for preterm birth. The 2R/2R and 2R/4R genotypes led to a very early and early preterm delivery, respectively. The combination of three or four proinflammatory genotypes was detected only in women with a very early preterm delivery, which confirms that the combination of several proinflammatory genotypes is an extremely unfavorable factor for the full-term pregnancy. Identification of genetic polymorphisms in the interleukin genes at the periconceptional stage will help to prevent the risk of preterm delivery, which will reduce the incidence of preterm births, as well as perinatal morbidity and mortality.

Copyright © 2018. All rights reserved. Objective: Evaluate growth in patients with polyarticular-course juvenile idiopathic arthritis (pcJIA) treated with tocilizumab (TCZ) for up to 2 years in a phase III trial. Methods: Patients with pcJIA lasting at least 6 months and inadequate response to methotrexate received open-label TCZ intravenously every 4 weeks (randomly assigned to 8 or 10 mg/kg if they weighed < 30 kg; received 8 mg/kg if they weighed ≥ 30 kg) for 16 weeks. Patients with JIA American College of Rheumatology 30 response at Week 16 were randomly assigned to TCZ or placebo for 24 weeks, with an open-label extension through Week 104. Mean ± SD height velocity (cm/yr) and World Health Organization (WHO) height SD score (SDS) were measured in patients receiving ≥ 1 dose of TCZ who did not receive growth hormone and in patients whose baseline Tanner stage was ≤ 3. Results: The study included 187 of 188 patients (99.5%) with mean WHO height SDS -0.5 ± 1.2, which was unrelated to age or disease duration (Spearman rank correlations r = 0.08 and r = -0.12, respectively). There were 123 patients at Tanner stage ≤ 3 at baseline, among whom 103 completed the study with 2 years of height SDS data. Mean height SDS increased from baseline to year 2 (+0.40, p < 0.0001). In 74 of 103 patients (72%), height SDS was greater than at baseline, and mean height velocity was 6.7 ± 2.0 cm/year. Conclusion. Among patients with pcJIA at Tanner stage ≤ 3 at baseline, 72% (74/103) had increased height SDS at the end of the study.

© 2018, Media Sphera Publishing Group. All rights reserved. Objective. To study the association between proinflammatory cytokine genes and depression. Material and methods. IL-1B С-511T and TNF-a G-308A gene polymorphisms were studied in patients diagnosed with depression and age and sex-matched healthy controls. Results and conclusion. The IL-1B С-511T and TNF-a G-308A polymorphisms were associated with depression; CC genotype (р=0,001, OR=1.9 CI 1,3—2,7) and GG genotype (р=0,001, OR=3,0 CI 1,8—4,9) were the risk factors. The results suggest that immune factors may play a role in the development of depression. The authors highlight the role of clinical polymorphism of depression that makes it difficult to form homogenous groups of patients and to select phenotypes for biological studies.

© 2018 Stavropol State Medical University. All rights reserved. Male fertility is based on complex intracellular signaling during spermatogenesis. Effect of Interleukin-1 (IL-1) and its homologues on spermatogenesis is actively studied. Nevertheless, its role in idiopathic infertility has not been sufficiently studied, especially in the phase of hypospermatogenesis. Aim: Evaluation of the expression of IL-1α, IL-1β and IL-1ra in human seminiferous tubules in idiopathic infertility. A retrospective study involved men (n=54) who complained of childlessness in a marriage for 2 years with the diagnosis of idiopathic infertility, established after a physical, medico-genetic, biochemical (hormone) and cytological (spermogram) analysis. The biopsy specimens obtained from the operation, as well as the autopsy material of men aged 22-35 years (n=10), were studied using the immunohistochemical method (antibodies: IL-1α, IL-1β and IL-1ra). At hypo-spermatogenesis, the maturation block, and Sertoli-cell syndrome, Leydig cells are marked to IL-1α, IL-1β labeling with a decrease in IL-1ra. Sertoli cells and germ cells show weak responses to IL-1α, IL-1β and their absence on IL-1ra. Thus, the different levels of expression of IL-1α, IL-1β and IL-1ra indicate that these cytokines control spermatogenesis and are one of the triggers in the formation of male infertility form-phases.