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  • Title: The interleukin-6--174 single nucleotide polymorphism: cervical protein production and the risk of preterm delivery.
    Author: Jamie WE, Edwards RK, Ferguson RJ, Duff P.
    Journal: Am J Obstet Gynecol; 2005 Apr; 192(4):1023-7. PubMed ID: 15846175.
    Abstract:
    OBJECTIVE: The purpose of this study was to determine the associations between preterm delivery (PTD), cervical fluid interleukin-6 (IL-6) concentration, and the single nucleotide polymorphism at position -174 in the IL-6 gene. STUDY DESIGN: Cervical fluid samples were obtained from women 23 to 32 weeks' gestation with symptoms of preterm labor. Concentrations of IL-6 were determined by enzyme-linked immunosorbent assay (ELISA). IL-6 genotyping was performed using a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. RESULTS: One hundred thirty-seven women were enrolled, and complete information was available for 126. Cervical fluid IL-6 concentrations were not elevated in women destined to have a spontaneous PTD ( P = .86). IL-6 -174 genotype was not associated with PTD ( P = .62) or cervical fluid IL-6 concentration ( P = .36). Neonatal IL-6-174 genotype was not associated with PTD or IL-6 concentration. CONCLUSION: Cervical fluid concentrations of IL-6 were not elevated in symptomatic women destined to have a spontaneous PTD. The presence of maternal IL-6 -174C was not associated with cervical fluid concentration of IL-6 or risk of PTD.
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