Preterm labor is characterized by a high abundance of amniotic fluid prostaglandins in patients with intra-amniotic infection or sterile intra-amniotic inflammation

To distinguish between prostaglandin and prostamide concentrations in the amniotic fluid of women who had an episode of preterm labor with intact membranes through the utilisation of liquid chromatography-tandem mass spectrometry. Liquid chromatography-tandem mass spectrometry analysis of amniotic f...

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Bibliographic Details
Published in:The journal of maternal-fetal & neonatal medicine 2021-12, Vol.34 (24), p.4009-4024
Main Authors: Peiris, Hassendrini N., Romero, Roberto, Vaswani, Kanchan, Reed, Sarah, Gomez-Lopez, Nardhy, Tarca, Adi L., Gudicha, Dereje W., Erez, Offer, Maymon, Eli, Mitchell, Murray D.
Format: Article
Language:English
Subjects:
Amniotic Fluid
Chorioamnionitis
eicosanoids
Female
Humans
Infant, Newborn
Inflammation
mass spectrometry
Obstetric Labor, Premature
parturition
Pregnancy
Prostaglandins
prostamides
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Summary:To distinguish between prostaglandin and prostamide concentrations in the amniotic fluid of women who had an episode of preterm labor with intact membranes through the utilisation of liquid chromatography-tandem mass spectrometry. Liquid chromatography-tandem mass spectrometry analysis of amniotic fluid of women with preterm labor and (1) subsequent delivery at term (2) preterm delivery without intra-amniotic inflammation; (3) preterm delivery with sterile intra-amniotic inflammation (interleukin (IL)-6>2.6 ng/mL without detectable microorganisms); and (4) preterm delivery with intra-amniotic infection [IL-6>2.6 ng/mL with detectable microorganisms]. (1) amniotic fluid concentrations of PGE 2 , PGF 2α , and PGFM were higher in patients with intra-amniotic infection than in those without intra-amniotic inflammation; (2) PGE 2 and PGF 2α concentrations were also greater in patients with intra-amniotic infection than in those with sterile intra-amniotic inflammation; (3) patients with sterile intra-amniotic inflammation had higher amniotic fluid concentrations of PGE 2 and PGFM than those without intra-amniotic inflammation who delivered at term; (4) PGFM concentrations were also greater in women with sterile intra-amniotic inflammation than in those without intra-amniotic inflammation who delivered preterm; (5) amniotic fluid concentrations of prostamides (PGE 2 -EA and PGF 2α -EA) were not different among patients with preterm labor; (6) amniotic fluid concentrations of prostaglandins, but no prostamides, were higher in cases with intra-amniotic inflammation; and (7) the PGE 2 :PGE 2 -EA and PGF 2α :PGF 2α -EA ratios were higher in patients with intra-amniotic infection compared to those without inflammation. Mass spectrometric analysis of amniotic fluid indicated that amniotic fluid concentrations of prostaglandins, but no prostamides, were higher in women with preterm labor and intra-amniotic infection than in other patients with an episode of preterm labor. Yet, women with intra-amniotic infection had greater amniotic fluid concentrations of PGE 2 and PGF 2α than those with sterile intra-amniotic inflammation, suggesting that these two clinical conditions may be differentiated by using mass spectrometric analysis of amniotic fluid.
ISSN:1476-7058
1476-4954
DOI:10.1080/14767058.2019.1702953