Evidence map›Paper›PMID 26985003›Full record

ArticleBiology of reproduction2016

Knockdown of Progesterone Receptor (PGR) in Macaque Granulosa Cells Disrupts Ovulation and Progesterone Production.

Cecily V Bishop, Jon D Hennebold, Christoph A Kahl, Richard L Stouffer

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
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  7. Review
  8. Article
  9. Nuclear Receptors in Ovarian Function.Advances in experimental medicine and biology · 2022
    Article
  10. Article
  11. Neurotensin: A novel mediator of ovulation?FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Dissection of the Ovulatory Process UsingFrontiers in cell and developmental biology · 2020
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review
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

4 authors at 2 institutions in 1 country.

Cecily V BishopDivision of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, Oregon bishopc@ohsu.edu.
Jon D HenneboldDivision of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, Oregon Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon.
Christoph A KahlMolecular Virology Support Core, Oregon National Primate Research Center, Beaverton, Oregon.
Richard L StoufferDivision of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, Oregon Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon.
Oregon National Primate Research Center · USOregon Health & Science University · US

Funding

Upgrade of confocal microscopy at the Oregon National Primate Research CenterP51OD011092 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Bonnie J. Nagel · 2012 to 2026
$203.9M
PROGESTERONE RECEPTOR AND ACTION IN THE PRIMATE OVARYR01HD020869 · NICHD · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI HENNEBOLD, JON D · 1985 to 2021
$9.4M
OHSU Women's Reproductive Health Research K12 ProgramK12HD085809 · NICHD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Aaron B Caughey · 2015 to 2026
$4.0M
NICHD NIH HHS K12 HD085809NICHD NIH HHS R01 HD020869NIH HHS P51 OD011092
6 · The paper itself

Abstract

Adenoviral vectors (vectors) expressing short-hairpin RNAs complementary to macaque nuclear progesterone (P) receptor PGR mRNA (shPGR) or a nontargeting scrambled control (shScram) were used to determine the role PGR plays in ovulation/luteinization in rhesus monkeys. Nonluteinized granulosa cells collected from monkeys (n = 4) undergoing controlled ovarian stimulation protocols were exposed to either shPGR, shScram, or no virus for 24 h; human chorionic gonadotropin (hCG) was then added to half of the wells to induce luteinization (luteinized granulosa cells [LGCs]; n = 4-6 wells/treatment/monkey). Cells/media were collected 48, 72, and 120 h postvector for evaluation of PGR mRNA and P levels. Addition of hCG increased (P < 0.05) PGR mRNA and medium P levels in controls. However, a time-dependent decline (P < 0.05) in PGR mRNA and P occurred in shPGR vector groups. Injection of shPGR, but not shScram, vector into the preovulatory follicle 20 h before hCG administration during controlled ovulation protocols prevented follicle rupture in five of six monkeys as determined by laparoscopic evaluation, with a trapped oocyte confirmed in three of four follicles of excised ovaries. Injection of shPGR also prevented the rise in serum P levels following the hCG bolus compared to shScram (P < 0.05). Nuclear PGR immunostaining was undetectable in granulosa cells from shPGR-injected follicles, compared to intense staining in shScram controls. Thus, the nuclear PGR appears to mediate P action in the dominant follicle promoting ovulation in primates. In vitro and in vivo effects of PGR knockdown in LGCs also support the hypothesis that P enhances its own synthesis in the primate corpus luteum by promoting luteinization.

Indexed as

AnimalsCells, CulturedCorpus LuteumFemaleGene Knockdown TechniquesGranulosa CellsLuteal CellsLuteinizationMacaca mulattaOvulationProgesteroneReceptors, ProgesteroneTransfectionProgesteroneReceptors, ProgesteroneluteinizationovulationPGRprogesteroneshRNAsiRNA

Identifiers

PMID26985003
PMCPMC4939739
OpenAlexW2311248722

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.