Evidence map›Paper›PMID 21753194›Full record

ArticleBiology of reproduction2011

Prostaglandin E2 receptors are differentially expressed in subpopulations of granulosa cells from primate periovulatory follicles.

Siabhon M Harris, Lindsey C Aschenbach, Stephanie M Skinner, Brandy L Dozier, Diane M Duffy

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

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  11. Transcriptomic signatures for ovulation in vertebrates.General and comparative endocrinology · 2017
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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

5 authors at 1 institution in 1 country.

Siabhon M HarrisDepartment of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA.
Lindsey C Aschenbach
Stephanie M Skinner
Brandy L Dozier
Diane M Duffy
Eastern Virginia Medical School · US

Funding

Prostaglandin Receptors in Primate Ovulatory FolliclesR01HD054691 · NICHD · EASTERN VIRGINIA MEDICAL SCHOOL · PI DUFFY, DIANE M · 2007 to 2011
$2.0M
NICHD NIH HHS HD054691NICHD NIH HHS R01 HD054691
6 · The paper itself

Abstract

Prostaglandin E2 (PGE2) mediates many effects of the midcycle luteinizing hormone (LH) surge within the periovulatory follicle. Differential expression of the four PGE2 (EP) receptors may contribute to the specialized functions of each granulosa cell subpopulation. To determine if EP receptors are differentially expressed in granulosa cells, monkeys received gonadotropins to stimulate ovarian follicular development. Periovulatory events were initiated with human chorionic gonadotropin (hCG); granulosa cells and whole ovaries were collected before (0 h) and after (24-36 h) hCG to span the 40-h primate periovulatory interval. EP receptor mRNA and protein levels were quantified in granulosa cell subpopulations. Cumulus cells expressed higher levels of EP2 and EP3 mRNA compared with mural cells 36 h after hCG. Cumulus cell EP2 and EP3 protein levels also increased between 0 and 36 h after hCG. Overall, mural granulosa cells expressed low levels of EP1 protein at 0 h and higher levels 24-36 h after hCG. However, EP1 protein levels were higher in granulosa cells away from the follicle apex compared with apex cells 36 h after hCG. Higher levels of PAI-1 protein were measured in nonapex cells, consistent with a previous study showing EP1-stimulated PAI-1 protein expression in monkey granulosa cells. EP4 protein levels were low in all subpopulations. In summary, cumulus cells likely respond to PGE2 via EP2 and EP3, whereas PGE2 controls rupture of a specific region of the follicle via EP1. Therefore, differential expression of EP receptors may permit each granulosa cell subpopulation to generate a unique response to PGE2 during the process of ovulation.

Indexed as

AnimalsCumulus CellsFemaleGranulosa CellsMacaca fascicularisOvarian FollicleOvulationPlasminogen Activator Inhibitor 1Receptors, Prostaglandin ERNA, MessengerTissue Plasminogen ActivatorPlasminogen Activator Inhibitor 1Receptors, Prostaglandin ERNA, MessengerTissue Plasminogen Activator

Identifiers

PMID21753194
PMCPMC3197913
OpenAlexW2063095231

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.