Evidence map›Paper›PMID 20719813›Full record

ArticleHuman reproduction (Oxford, England)2010

Human oocyte maturation is dependent on LH-stimulated accumulation of the epidermal growth factor-like growth factor, amphiregulin.

A M Zamah, M Hsieh, J Chen, J L Vigne, M P Rosen, M I Cedars, M Conti

Open access · greenAbstract read
In one paragraph

Article in Human reproduction (Oxford, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
9.4field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 121 citations in OpenAlex.

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  11. Annals of medicine · 2024
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  14. The role of amphiregulin in ovarian function and disease.Cellular and molecular life sciences : CMLS · 2023
    Review
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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

7 authors at 2 institutions in 1 country.

A M ZamahDepartment of Obstetrics and Gynecology and Reproductive Sciences, Division of Reproductive Endocrinology and Infertility, University of California San Francisco, 2356 Sutter Street, 7th Floor, San Francisco, CA 94115, USA. musa.zamah@ucsfmedctr.org
M Hsieh
J Chen
J L Vigne
M P Rosen
M I Cedars
M Conti
University of California, San Francisco · USReproductive Science Center · US

Funding

Role of the EGF Network in OvulationR01HD052909 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CONTI, MARCO · 2007 to 2011
$1.7M
NICHD NIH HHS R01 HD052909
6 · The paper itself

Abstract

backgroundThe LH surge promotes ovulation via activation of multiple signaling networks in the ovarian follicle. Studies in animal models have shown the importance of LH-induced activation of the epidermal growth factor (EGF)signaling network in critical peri-ovulatory events. We investigated the biological significance of regulatory mechanisms mediated by EGF-like growth factors during LH stimulation in humans.

methodsWe characterized the EGF signaling network in mature human ovarian follicles using in vivo and in vitro approaches. Amphiregulin (AREG) levels were measured in 119 follicular fluid (FF) samples from IVF/ICSI patients. Biological activity of human FF was assessed using in vitro oocyte maturation, cumulus expansion and cell mitogenic assays.

resultsAREG is the most abundant EGF-like growth factor accumulating in the FF of mature follicles of hCG-stimulated patients. No AREG was detected before the LH surge or before hCG stimulation of granulosa cells in vitro, demonstrating that the accumulation of AREG requires gonadotrophin stimulation. Epiregulin and betacellulin mRNA were detected in both human mural and cumulus granulosa cells, although at significantly lower levels than AREG. FF from stimulated follicles causes cumulus expansion and oocyte maturation in a reconstitution assay. Immunodepletion of AREG abolishes the ability of FF to stimulate expansion (P < 0.0001) and oocyte maturation (P < 0.05), confirming the biological activity of AREG. Conversely, mitogenic activity of FF remained after depletion of AREG, indicating that other mitogens accumulate in FF. FF from follicles yielding an immature germinal vesicle oocyte or from an oocyte that develops into an aberrant embryo contains lower AREG levels than that from follicles yielding a healthy oocyte (P = 0.008).

conclusionsEGF-like growth factors play a role in critical peri-ovulatory events in humans, and AREG accumulation is a useful marker of gonadotrophin stimulation and oocyte competence.

Indexed as

AdultAmphiregulinBetacellulinBiomarkersChorionic GonadotropinEGF Family of ProteinsEpidermal Growth FactorEpiregulinFemaleFollicular FluidGlycoproteinsGranulosa CellsHumansIntercellular Signaling Peptides and ProteinsLuteinizing HormoneMiddle AgedAmphiregulinAREG protein, humanBetacellulinBiomarkersBTC protein, humanChorionic GonadotropinEGF Family of ProteinsEpidermal Growth FactorEpiregulinEREG protein, humanGlycoproteinsIntercellular Signaling Peptides and ProteinsLuteinizing Hormone

Identifiers

PMID20719813
PMCPMC2939758
OpenAlexW2130129394

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.