Evidence map›Paper›PMID 19087974›Full record

ArticleReproductive sciences (Thousand Oaks, Calif.)2009

Medroxyprogesterone acetate modulates remodeling, immune cell census, and nerve fibers in the cervix of a mouse model for inflammation-induced preterm birth.

Steven M Yellon, Charlotte A Ebner, Michal A Elovitz

Open access · greenAbstract read
In one paragraph

Article in Reproductive sciences (Thousand Oaks, Calif.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.8field-weighted citation impact, top 10% of its field
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

30 citing papers in PubMed, 52 citations in OpenAlex.

  1. Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2011
    Trial
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Next generation strategies for preventing preterm birth.Advanced drug delivery reviews · 2021
    Review
  8. Article
  9. Collagen at the maternal-fetal interface in human pregnancy.International journal of biological sciences · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
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  18. Article
  19. Immune cells in term and preterm labor.Cellular & molecular immunology · 2014
    Review
  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

3 authors at 2 institutions in 1 country.

Steven M YellonDepartment of Physiology, Pediatrics and Obstetrics/Gynecology, Loma Linda University School of Medicine, Loma Linda, California 92350, USA. syellon@LLU.edu
Charlotte A Ebner
Michal A Elovitz
Loma Linda University · USUniversity of Pennsylvania · US

Funding

NEURAL REGULATION OF PREPARTUM CERVICAL RIPENINGR01HD054931 · NICHD · LOMA LINDA UNIVERSITY · PI YELLON, STEVEN M · 2007 to 2016
$2.2M
NICHD NIH HHS HD054931NICHD NIH HHS R01 HD054931
6 · The paper itself

Abstract

To determine whether a progestational agent can modify inflammation-induced preterm cervical ripening, mice on day 15 of gestation were given an intrauterine injection of (1) saline, (2) lipopolysaccharide, (3) an intramuscular injection of medroxyprogesterone acetate alone prior to lipopolysaccharide, or (4) medroxyprogesterone acetate alone. Cervices were obtained 6 hours later, then fixed, sectioned, and processed to stain collagen structure or to identify immune cells or nerve fibers. Cervical remodeling was induced by lipopolysaccharide treatment compared with that in saline controls, an effect blocked by medroxyprogesterone acetate pretreatment. Moreover, lipopolysaccharide reduced macrophages and enhanced neutrophils in the cervix, effects also forestalled by medroxyprogesterone acetate pretreatment. Although the density of nerve fibers was not altered by lipopolysaccharide, medroxyprogesterone acetate reduced innervation in the cervix. Thus, progestational treatment forestalls the inflammation-induced reduction in collagen structure and immune cell traffic through a mechanism that is independent of nerve fiber density. These findings raise the possibility that progestational treatment may regulate ripening of the cervix early in the process leading to preterm birth.

Indexed as

AnimalsCervical RipeningCervix UteriCollagenDisease Models, AnimalFemaleGestational AgeInflammationInjections, IntramuscularLipopolysaccharidesMacrophagesMedroxyprogesterone AcetateMiceNerve FibersNeutrophil InfiltrationPregnancyCollagenLipopolysaccharidesMedroxyprogesterone AcetateProgestins

Identifiers

PMID19087974
PMCPMC4663206
OpenAlexW2048861326

What OpenQuestion holds

Textmetadata
LicenceTDM
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.