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Abstract
Objective: The aim of this study was to determine the maternal and umbilical cord sTNF R1 serum levels in pregnancies complicated by severe preeclampsia with normal intrauterine fetal growth and in preeclamptic pregnancies with intrauterine growth retardation (IUGR). Patients and Methods: The study was carried out on 8 patients with preeclampsia complicated by intrauterine growth retardation (group PI) and 18 preeclamptic patients with appropriate-for-gestational-age weight infants (group P). The control group consisted of 18 healthy normotensive delivering patients with singleton uncomplicated pregnancies (group C). Maternal and umbilical serum sTNF-R1 concentrations were estimated using a sandwich enzyme-linked immunosorbent assay (ELISA). Results and Conclusions: Pregnant women with severe preeclampsia had higher maternal and umbilical serum sTNF-R1 levels than did normotensive controls. Furthermore significantly higher umbilical levels of sTNF-R1 were observed in the group of patients with preeclampisa complicated by IUGR, compared with preeclamptic patients with appropriate-for-gestational-age weight infants. The umbilical sTNF-R1 levels in preeclamptic groups tended to be higher in comparison with the maternal levels. Our results and those of other reports seem to suggest that TNFα and sTNFR1 play a crucial role in pathogenesis and sequelae of preeclampsia with and without intrauterine growth retardation.