Biopolym. Cell. 2013; 29(5):402-405.
The role of IL6 and ESR1 gene polymorphisms as immunological factors of pregnancy maintenance
1, 2Kucherenko A. M., 3Vorobiova I. I., 3Rudakova N. V., 1, 3Livshits L. A.
  1. Institute of Molecular Biology and Genetics, NAS of Ukraine
    150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03680
  2. Educational and Scientific Center "Institute of Biology",
    Taras Shevchenko National University of Kyiv
    64/13, Volodymyrska Str., Kyiv, Ukraine, 01601
  3. State Enterprise "Institute of Pediatrics, Obstetrics and Gynecology" NAMS of Ukraine
    8, Manuil'skoho St., Kyiv, Ukraine, 04050


Aim. The study is aimed at the evaluation of the association of IL6 gene -174G/C polymorphism and ESR1 gene -397C/T polymorphism with recurrent pregnancy loss (RPL) pathogenesis and at the investigation of the ESR1 gene -397C/T variant regulatory significance for the IL6 gene function. Methods. A case group of 75 women with RPL history and a control group of 106 unrelated healthy women, who have given birth to at least one child conceived in natural way, were genotyped by a PCR based restriction fragment length polymorphism assay. Results. There was no significant difference in IL6 -174G/C or ESR1 -397C/T genotype and allele frequencies between the case and control groups. Combined genotype distribution analysis showed significantly (p < 0.05) lower frequency of individuals homozygous for both IL6 -174G and ESR1 -397C alleles in case group (0.026) comparing to control (0.094). Conclusions. Genotype comprising IL6 -174G and ESR1 -397C alleles in homozygous state may be considered as a genetic marker of successful pregnancy maintenance during gestation early stages.
Keywords: recurrent pregnancy loss, interleukin, polymorphism


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