Evidence map›Paper›PMID 27233754›Full record

ArticleReproductive sciences (Thousand Oaks, Calif.)2016

Progesterone Receptor-Mediated Actions Regulate Remodeling of the Cervix in Preparation for Preterm Parturition.

Michael A Kirby, Anne C Heuerman, Melisa Custer, Abigail E Dobyns, Ryan Strilaeff, Kathleen N Stutz, Jaclyn Cooperrider, Joseph G Elsissy, Steven M Yellon

Abstract read
In one paragraph

Article in Reproductive sciences (Thousand Oaks, Calif.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Pooled it
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  14. Article
  15. TBX2, a Novel Regulator of Labour.Medicina (Kaunas, Lithuania) · 2021
    Article
  16. Article
  17. Inflammatory Amplification: A Central Tenet of Uterine Transition for Labor.Frontiers in cellular and infection microbiology · 2021
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Michael A KirbyCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA Departments of Pathology and Human anatomy, and Pediatrics, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Anne C HeuermanCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Melisa CusterCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Abigail E DobynsCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Ryan StrilaeffCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Kathleen N StutzCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Jaclyn CooperriderCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Joseph G ElsissyCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.
Steven M YellonCenter for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA, USA Departments of Pathology and Human anatomy, and Pediatrics, School of Medicine, Loma Linda University, Loma Linda, CA, USA Division of Physiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA syellon@llu.edu.

Funding

NEURAL REGULATION OF PREPARTUM CERVICAL RIPENINGR01HD054931 · NICHD · LOMA LINDA UNIVERSITY · PI YELLON, STEVEN M · 2007 to 2016
$2.2M
NICHD NIH HHS R01 HD054931
6 · The paper itself

Abstract

This study determined whether a progesterone (P) receptor (PR)-mediated mechanism regulates morphological characteristics associated with prepartum cervix remodeling at term and with preterm birth. With focus on the transition from a soft to ripe cervix, the cervix stroma of untreated controls had reduced cell nuclei density/area and less organized extracellular collagen, while the density of macrophages/area, but not neutrophils, increased just 2 days before birth (day 17 vs day 15 or 16.5 postbreeding). Preterm birth was induced within 24 hours of treatment on day 16 postbreeding with PR antagonist or ovariectomy (Ovx). Pure or mixed PR antagonists increased the density of macrophages in the cervix within 8 hours (day 16.5 postbreeding), in advance of preterm birth. However, neither PR antagonists nor P withdrawal after Ovx affected the densities of cell nuclei and neutrophils or extracellular collagen compared to the same day controls-an indication that the cervix was sufficiently remodeled for birth to occur. To block the effect of systemic P withdrawal, Ovx pregnant mice were given a PR agonist, either pure or mixed. These treatments forestalled preterm birth and prevented further morphological remodeling of the cervix. The resulting increase in macrophage density in cervix stroma following Ovx was only blocked by a pure PR agonist. These findings support the hypothesis that inflammatory processes in the prepartum cervix that include residency of macrophages, cellular hypertrophy, and extracellular collagen structure are regulated by genomic actions of PR in a final common mechanism both at term and with induced preterm birth.

Indexed as

Cervical RipeningAnimalsCell CountCervix UteriFemaleGonanesMacrophagesMiceMifepristoneNeutrophilsOvariectomyPregnancyPremature BirthReceptors, ProgesteroneGonanesMifepristoneonapristoneReceptors, Progesteronecollagenmacrophagemifepristoneneutrophilonapristonepromegestone

Identifiers

PMID27233754
PMCPMC5933109

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.