Vol 92, No 6 (2021)
Research paper
Published online: 2021-04-29

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Association between idiopathic recurrent pregnancy loss and genetic polymorphisms in cytokine and matrix metalloproteinase genes

Urszula Wysocka1, Agata Sakowicz2, Lucjusz Jakubowski1, Iwona Pinkier1, Magda Rybak-Krzyszkowska3, Wojciech Alaszewski1, Lech Dudarewicz1, Agnieszka Gach1
Pubmed: 33914308
Ginekol Pol 2021;92(6):440-445.


Objectives: Recurrent reproductive loss (RPL) is a global health issue affecting a significant number of women. Approximately half of miscarriages have an unexplained etiology. Familial aggregation and twins studies prove that some cases of the RPL could have a genetic background. Recent evidences suggest that cytokines (e.g. IL-6, TNF alpha or TGF beta) and matrix metalloproteinases (MMP) are important for maintenance of pregnancy. Single gene polymorphisms (SNP), affecting these proteins production or their function may predispose to the loss of the pregnancy. The aim of this study was to evaluate the association between the following polymorphisms of IL6 (rs1800795), TNF (rs1800629), TGFB1 (rs1800471), MMP1 (rs1799750), MMP2 (rs2285053 and rs243865), MMP3 (rs35068180), MMP9 (rs3918242) and the recurrent pregnancy loss in polish population.
Material and methods: Study subjects comprised of 67 patients with a history of recurrent pregnancy loss (≥ 2 miscarriages in history) and 75 controls. The distribution of genotypes for selected polymorphisms were determined by RFLP-PCR.
Results: Maternal genotypes GG TNF, or 5A/5A MMP3 may be associated with the recurrent pregnancy loss. No association between the IL6, TGFB1, MMP1, MMP2, or MMP9 studied polymorphisms and the predisposition to miscarriage was found.
Conclusions: This study demonstrated a possible association between rs1800629 TNF, rs35068180 MMP3 polymorphisms and recurrent pregnancy loss.

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