Journal
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
Volume 23, Issue 8, Pages 880-886Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/14767051003774942
Keywords
Interleukin-8; interleukin-6; tumor necrosis factor-alpha; preeclampsia
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Objectives. The aim of this study was to investigate the relationship of maternal and umbilical cord interleukin-6 (IL-6), interleukin-8 (IL-8), tumor necrosis factor-alpha (TNF-alpha) serum levels with the existence and severity of preeclampsia. A particular objective was the comparison of normal umbilical serum levels to preeclamptic values. Materials and Methods. The study group consisted of 24 patients with third trimester singleton pregnancies complicated by preeclampsia (15 severe and 9 mild preeclampsia). The gestational age-matched 19 healthy pregnant women were compared by study group. Maternal and umbilical serum IL-6, IL-8, and TNF-alpha were calculated by using enzyme-linked immunosorbent assay. Results. Significantly increased maternal and umbilical serum levels of IL-6, IL-8, and TNF-alpha were found in preeclamptic patient group in comparison with the control group. Maternal serum IL-8 and TNF-alpha concentration were significantly higher in patients with severe preeclampsia than in mild preeclampsia. Increased umbilical serum levels of IL-6 and IL-8 were found in severe preeclampsia than in mild preeclampsia. There were significantly higher levels of maternal serum IL-8 and TNF-alpha in patients with preeclampsia with IUGR than in patients with preeclampsia with normal fetal growth. Conclusion. Our findings suggest that increased concentrations of IL-6, IL-8, and TNF-alpha in the maternal and umbilical serum play a significant role in pathogenesis of preeclampsia. Alterations in maternal and umbilical serum levels of IL-6, IL-8, and TNF-alpha may also play role in preeclampsia complicated by intrauterine growth retardation. These associations may offer insight into the etiology and pathogenesis of preeclampsia.
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