Elevation of amniotic fluid interleukin-4 concentrations in women with preterm labor and chorioamnionitis

American Journal of Perinatology
D J DudleyM D Mitchell

Abstract

Preterm labor associated with intrauterine infection is characterized by increased amniotic fluid concentrations of various proinflammatory cytokines, including interleukin-1beta (IL-1beta), tumor necrosis factor-alpha (TNF-alpha), IL-6, IL-8, and macrophage inflammatory protein-1alpha (MIP-1alpha). The purpose of this study was to determine if preterm labor in women with clinically evident chorioamnionitis is marked by elevations of the anti-inflammatory cytokine interleukin-4 (IL-4) and the T cell growth factor IL-2. Amniotic fluid samples were obtained from (1) women at term, not in labor (n = 10); (2) women at term, in labor (n = 10); (3) women with preterm contractions but undelivered within 1 week of amniotic fluid collection (n = 10); (4) women with preterm labor and delivery without clinically evident chorioamnionitis (n = 10); (5) women with preterm labor associated with chorioamnionitis (n = 8); and (6) women with preterm labor and delivery without infection matched with patients with chorioamnionitis (n = 8). Amniotic fluid concentrations of IL-4 and IL-2 were determined for each sample with a specific and sensitive enzyme-linked immunoassay. We found that women with infection-associated preterm labor and delivery ha...Continue Reading

Citations

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