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Inhibition of epoxy-eicosanoid degradation improves the tocolytic effects of indomethacin in the uterus from pregnant women

Prostaglandins & Other Lipid Mediators
Publication Date
DOI: 10.1016/j.prostaglandins.2011.07.004
  • Eicosanoids
  • Indomethacin
  • Soluble Epoxide Hydrolase Inhibitor
  • Tocolytics
  • Women Myometrium At Term


Abstract The incidence of preterm birth is an increasing problem. Indomethacin, a non-specific cyclooxygenase inhibitor, has been largely used as tocolytic in the treatment of preterm labor. The aim of the present study was to assess a putative synergistic tocolytic effect between the inhibition of the production of prostanoids and stabilization of epoxides fatty acids, particularly arachidonate on spontaneous uterine contractile activity. The experimental work was performed on uterine biopsies from consenting women undergoing elective cesarean delivery at term. Isometric tension measurements were performed on fresh human myometrial strips. Contractile activities have been monitored upon individual and combined treatments of indomethacin, DDMS, an inhibitor of hydroxy-eicosanoids production and AUDA, an inhibitor of epoxy-eicosanoids degradation. Interestingly, a significant and consistent synergic effect was observed when indomethacin and AUDA were simultaneously added, raising the possibility of a combined clinical use of cyclooxygenase and sEH inhibitors in attempt to treat preterm labor.

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