Cited by 66Cardiovascular Conditions and TreatmentsPreterm Birth and ChorioamnionitisInflammatory mediators and NSAID effects

Cyclooxygenase-1–selective inhibition prolongs gestation in mice without adverse effects on the ductus arteriosus

Loftin, Charles D., Trivedi, Darshini B., Langenbach, Robert·2002·Journal of Clinical Investigation

Abstract

Preterm delivery is the leading cause of neonatal mortality and contributes significantly to infant morbidity. Classical cyclooxygenase (COX) inhibitors, such as indomethacin, which inhibit both COX-1 and COX-2, are effective for delaying premature labor, but their use is limited by serious complications to the fetus and neonate, including adverse effects on the ductus arteriosus (DA). Using isoform-selective inhibitors, we characterized the roles of the COX isoforms in the initiation of labor and the regulation of fetal and neonatal DA closure in mice. Chronic inhibition of COX-2 during pregnancy (gestation days 15–18) significantly increased neonatal mortality by preventing closure of the DA after birth, whereas acute COX-2 inhibition near the end of term (gestation day 18) constricted the fetal DA. In contrast, the inhibition of COX-1 during pregnancy lacked these prenatal and postnatal adverse effects on the DA and effectively delayed the initiation of full-term labor and LPS-induced preterm labor. These findings suggest that premature fetal DA closure or neonatal patent DA observed following indomethacin tocolysis in women may result from the inhibition of COX-2. Therefore, COX-1–selective inhibitors may provide effective treatment to delay preterm labor with fewer adverse effects on fetal or neonatal health than nonselective or COX-2–selective inhibitors.

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Crossref · 10.1172/jci0214924

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Authors
Loftin, C. D., Trivedi, D. B., & Langenbach, R.
Affiliations
National Institutes of Health (US)
Corresponding author
Langenbach, Robert
Venue
Journal of Clinical Investigation
Published
2002-08-15
Volume
110
Issue
4
Pages
549-557
ISSN
0021-9738 (ISSN-L)
OpenAlex
W4256099920
Cited by
65
References
45
Citations by year
2023: 3 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 5 · 2018: 1 · 2017: 1 · 2016: 1 · 2014: 1 · 2013: 4 · 2012: 5
FWCI
4.61
Type
journal article
Language
en
Open access
closed
Locations
Journal of Clinical Investigation (publishedVersion)
Funders
Ono Pharmaceutical
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiovascular Conditions and Treatments
  • Health Sciences › Medicine › Epidemiology › Preterm Birth and Chorioamnionitis
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
Keywords
cyclooxygenase-1, cyclooxygenase-2, preterm labor, preterm birth, ductus arteriosus closure, tocolysis, indomethacin, isoform-selective inhibitors, labor initiation, neonatal mortality, pregnancy

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