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OBJECTIVE Interleukin-1 alpha, interleukin-1 beta, interleukin-6 and interleukin-8 in specimens of cervical mucus were assayed to assess defense mechanisms against infection in the cervical canal during pregnancy. METHODS Two hundred and thirty-nine pregnant women who attended the obstetrics outpatient clinic in our hospital were included as subjects. Cervical mucus was collected with a newly developed collection swab, and cytokines and granulocyte elastase in the samples of cervical mucus were quantified using enzyme immunoassay kits. The 1-factor ANOVA, the Kruskal-Wallis test, and scheffé's F were used for statistical analysis. RESULTS Interleukin-1 alpha, interleukin-1 beta and interleukin-8 levels rose significantly as the concentrations of granulocyte elastase increased. High concentrations of interleukin-1 alpha (75.36 +/- 19.93 pg/ml), interleukin-1 beta (1005.29 +/- 238.75 pg/ml) and interleukin-8 (4822.4 +/- 633.2 pg/ml) were found in the specimens from the group of high granulocyte elastase levels. CONCLUSIONS These cytokines might be involved in defense mechanisms against ascending infection from the vagina.
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