ArticleBiology of reproduction2008
Parturition and recruitment of macrophages in cervix of mice lacking the prostaglandin F receptor.
Article in Biology of reproduction, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
38 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.
- Vaginal progesterone vs. cervical cerclage for the prevention of preterm birth in women with a sonographic short cervix, previous preterm birth, and singleton gestation: a systematic review and indirect comparison metaanalysis.American journal of obstetrics and gynecology · 2013Pooled it
- Dynamic chemokine profiles in cervical mucus during healthy pregnancy: IP-10 and MIP-1β as potential biomarkers of gestational immune adaptation.Frontiers in immunology · 2026Article
- Article
- The hormonal control of parturition.Physiological reviews · 2024Review
- Article
- Clinical chorioamnionitis at term is characterized by changes in the plasma concentration of CHCHD2/MNRR1, a mitochondrial protein.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023Article
- The amniotic fluid proteome changes with term labor and informs biomarker discovery in maternal plasma.Scientific reports · 2023Article
- The immunobiology of preterm labor and birth: intra-amniotic inflammation or breakdown of maternal-fetal homeostasis.Reproduction (Cambridge, England) · 2022Review
- Transcriptome changes in maternal peripheral blood during term parturition mimic perturbations preceding spontaneous preterm birth†.Biology of reproduction · 2022Article
- Gasdermin D:The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2021Article
- Human β-defensin-3 participates in intra-amniotic host defense in women with labor at term, spontaneous preterm labor and intact membranes, and preterm prelabor rupture of membranes.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2020Article
- The effects of advanced maternal age on T-cell subsets at the maternal-fetal interface prior to term labor and in the offspring: a mouse study.Clinical and experimental immunology · 2020Article
- Cell-Free Fetal DNA Increases Prior to Labor at Term and in a Subset of Preterm Births.Reproductive sciences (Thousand Oaks, Calif.) · 2020Article
- Inflammasomes: Their Role in Normal and Complicated Pregnancies.Journal of immunology (Baltimore, Md. : 1950) · 2019Review
- In vivo evidence of inflammasome activation during spontaneous labor at term.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019Article
- Effects of macrophage depletion on characteristics of cervix remodeling and pregnancy in CD11b-dtr mice.Biology of reproduction · 2019Article
- Immunobiology of Cervix Ripening.Frontiers in immunology · 2019Review
- Cervical alterations in pregnancy.Best practice & research. Clinical obstetrics & gynaecology · 2018Review
- A Role for the Inflammasome in Spontaneous Labor at Term.American journal of reproductive immunology (New York, N.Y. : 1989) · 2018Article
- Differential outcomes of TLR2 engagement in inflammation-induced preterm birth.Journal of leukocyte biology · 2018Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
Parturition does not occur in transgenic mice lacking the prostaglandin F receptor (Ptgfr(-/-)) because luteolysis is forestalled and progesterone production persists. Ovariectomy of pregnant Ptgfr(-/-) mice leads to a decline in circulating progesterone and delivery of live pups. The objective of the present study was to test the hypothesis that immigration of macrophages and increased innervation of the cervix of Ptgfr(-/-) mice was associated with ripening and parturition. The cervix of pregnant Ptgfr(-/-) mice was studied on Days 15-21 after breeding; additional groups were ovariectomized on Day 19 of pregnancy, and the cervix obtained on Day 20 of pregnancy before birth or the next day at about 24 h after birth. On Days 18-19 of pregnancy, macrophage numbers and nerve fiber density increased more than 3-fold compared with findings in nonpregnant or Day 15 or 21 pregnant Ptgfr(-/-) mice. The magnitude and time course of these changes were comparable to those found in wild-type controls that delivered on Day 19 after breeding. Thus, the mechanism regulating macrophage immigration, innervation, and cervical remodeling in Ptgfr(-/-) mice with delayed parturition is similar to wild-type controls that deliver at term. By contrast, ovariectomy forestalled the decrease in cervical macrophages in Ptgfr(-/-) mice. By Day 21 after breeding, macrophage numbers more than double those after ovariectomy, relative to those found in pregnant Ptgfr(-/-) mice, whereas nerve fiber density was the same regardless of birth. Density of collagen structure in these mice directly matched macrophage traffic in the cervix. The findings indicate that the prostaglandin F(2alpha) receptor and progesterone withdrawal are a necessary part of the final common pathway for ripening of the cervix and the process of parturition.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.