Korean J Perinatol.
2007 Dec;18(4):352-361.
Changes of Interleukin-6, C-reactive Protein, and Lipid Peroxide Levels in the Umbilical Venous Plasma of Preterm Birth with or without Chorioamnionitis
- Affiliations
-
- 1Department of Obstetrics and Gynecology, Chonnam National University Medical School, Gwangju, Korea. kimyh@chonnam.ac.kr
- 2Department of Pathology, Chonnam National University Medical School, Gwangju, Korea.
- 3Department of Biochemistry, Chonnam National University Medical School, Gwangju, Korea.
Abstract
OBJECTIVE
To investigate interleukin-6 (IL-6), C-reactive protein (CRP), and lipid peroxide levels in the umbilical venous plasma of preterm birth with or without histologic chorioamnionitis and to evaluate their roles in the pathophysiology in preterm labor and perinatal outcome.
METHODS
This cohort study included 66 cases of preterm delivery with preterm labor and intact membranes (PTL) (n=39) and preterm premature rupture of membranes (PPROM) (n=27). The umbilical venous blood samples were collected at the time of delivery. IL-6, CRP, and lipid peroxide levels were measured by ELISA Kit, latex agglutination assay, and thiobarbituric acid reaction. Histologic chorioamnionitis was diagnosed by the presence of neutrophil infiltration into the subamnionic space.
RESULTS
The prevalence of histologic chorioamnionitis was significantly higher in PPROM (59.3 %, 16/27) than in PTL (20.5%, 8/39). IL-6, CRP, and lipid peroxide levels in the umbilical venous plasma of histologic chorioamnionitis were significantly higher than those without histologic chorioamnionitis. IL-6, CRP, and lipid peroxide levels in the umbilical venous plasma of PTL with histologic chorioamnionitis were significantly higher than those of PTL without histologic chorioamnionitis. CRP levels in the umbilical venous plasma of PPROM with histologic chorioamnionitis were significantly higher than those of PPROM without histologic chorioamnionitis. Three suspected neonatal sepsis patients have increased IL-6 and lipid peroxide levels in the umbilical venous plasma compared with patients without neonatal sepsis. IL-6 levels in the umbilical venous plasma of histologic funisitis were significantly higher than those without funisitis.
CONCLUSION
Preterm birth with chorioamnionitis is associated with an increased level of IL-6, CRP, and lipid peroxide in umbilical venous blood. Preterm birth with chorioamnionitis may have an effect on perinatal outcome.
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