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  • Title: [Significance of amniotic fluid cytokines measurement in threatened preterm labor and premature rupture of the membranes].
    Author: Tani A.
    Journal: Nihon Sanka Fujinka Gakkai Zasshi; 1993 Apr; 45(4):327-32. PubMed ID: 8509668.
    Abstract:
    The purpose of this study was to elucidate the significance of measurements of cytokines in the amniotic fluid. Amniotic fluid was retrieved by transabdominal amniocentesis from 113 women in the following groups: Preterm labor (N = 58), PROM (N = 21) and term elective C/S (N = 34). Tumor necrosis factor alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta), were measured with a commercially available ELISA. Interleukin-6 (IL-6) was measured by bioassay and newly developed "luminescencer EIA". 1. Amniotic fluid concentrations of TNF-alpha, IL-1 beta and IL-6 in cases of term elective C/S were 22.8 +/- 19.2 pg/ml, 8.1 +/- 5.2 pg/ml and 166.8 +/- 126.1 pg/ml, respectively. 2. Significantly higher levels of TNF-alpha, IL-1 beta, IL-6 were found among the cases who failed to respond to tocolysis (i.e. delivery within 48 hrs of amniocentesis). In contrast, no significant difference in such conventional markers of infection as maternal serum CRP was noted. 3. According to the degree of histopathologic chorioamnionitis (Blanc), significantly higher concentrations of IL-1 beta, IL-6 were found among the of stage III cases than those in stage II irrespective of the rupture of the membranes (IL-1 beta: 1.36 +/- 0.41 ng/ml vs 76.6 +/- 20.1 pg/ml, IL-6: 31.98 +/- 4.55 ng/ml vs 5.22 +/- 0.92 ng/ml). Significant correlation was also found between the concentrations of IL-1 beta, IL-6 and the pathological degree of funitis (Nakayama, stage 0 < stage I, stage II < stage III).(ABSTRACT TRUNCATED AT 250 WORDS)
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