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  • Title: Tumor necrosis factor alpha, interleukin-6 and interleukin-10 polymorphisms in preeclampsia.
    Author: Vural P, Degirmencioglu S, Saral NY, Demirkan A, Akgul C, Yildirim G, Issever H, Eroglu H.
    Journal: J Obstet Gynaecol Res; 2010 Feb; 36(1):64-71. PubMed ID: 20178529.
    Abstract:
    AIM: Preeclampsia (PE) is one of the most serious disorders of pregnancy. The imbalance between pro- and anti-inflammatory cytokines may play a role in its etiology. The aim of the present study was to investigate whether cytokine gene polymorphism is associated with PE, and to evaluate the relationship between genotypes and clinical/laboratory manifestation of PE. METHODS: We investigated single nucleotide polymorphisms of tumor necrosis factor (TNF)alpha(-308 G/A), interleukin (IL)-6 (-174 G/C), IL-10 (-1082 G/A) genes in DNA from peripheral blood leukocytes of 101 PE patients and 95 healthy control women. RESULTS: In PE, there was a significant increase of the IL-10 (-1082) A allele frequency (P = 0.04). No significant differences were found in genotypes or allele frequencies of TNFalpha(-308) and IL-6 (-174) genes between PE women and controls. While TNFalpha(-308) and IL-6 (-174) genotypes did not influence clinical/laboratory parameters in PE, IL-10 (-1082) A allele carrying genotypes (AG + AA) were associated with higher glucose and lower HDL-cholesterol levels. CONCLUSION: Because women with IL-10 (-1082) AA genotype have 3.38-fold increased risk of developing PE according to GG genotype (95% CI 1.21-9.4, P = 0.01), we suggest that IL-10 (-1082) variant A allele is associated with an increased risk of preeclampsia, which is independent from its metabolic effects.
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