Evidence map›Paper›PMID 20667536›Full record

ArticleFertility and sterility2011

Primate model of metaphase I oocyte in vitro maturation and the effects of a novel glutathione donor on maturation, fertilization, and blastocyst development.

Eliza C Curnow, John P Ryan, Douglas M Saunders, Eric S Hayes

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Fertility and sterility, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 20% 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

3 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Glutathione Ethyl Ester Protects In VitroInternational journal of molecular sciences · 2020
    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

4 authors at 2 institutions in 2 countries.

Eliza C CurnowWashington National Primate Research Center, University of Washington, Seattle, Washington 98121, USA. ecurnow@wanprc.org
John P Ryan
Douglas M Saunders
Eric S Hayes
University of Sydney · AUUniversity of Washington · US

Funding

YILMA SIV VACCINIA VACCINE TRIALP51RR000166 · NCRR · UNIVERSITY OF WASHINGTON · PI HU, SHIU-LOK · 1985 to 2011
$161.1M
NCRR NIH HHS P51 RR000166NCRR NIH HHS P51 RR00166
6 · The paper itself

Abstract

objectiveTo assess the effect of glutathione ethyl ester (GSH-OEt) on the development of macaque metaphase (MI) oocytes as a model for human MI oocyte in vitro maturation (IVM).

designProspective cohort study.

settingNonhuman primate assisted reproductive technology program. ANIMAL(S): Twenty-three Macaca fascicularis females aged 6.5-12.5 years. INTERVENTION(S): Ovarian stimulation and maturation of MI oocytes in [1] human tubal fluid (HTF), [2] mCMRL-1066, [3] mCMRL-1066+GSH-OEt 3 mM, or [4] mCMRL-1066+GSH-OEt 5 mM. Oocytes were assessed for maturation after 4-6 hours (early) and 18-20 hours (late) of culture. Mature oocytes were inseminated or subjected to glutathione (GSH) assay. Zygotes were cultured to the blastocyst stage for total differential cell counts. MAIN OUTCOME MEASURE(S): Oocyte maturation rate, GSH content, pronuclear formation and blastocyst development, and cell number were compared between IVM treatment groups and sibling in vivo matured (IVO) MII oocytes. RESULT(S): Compared with HTF, mCMRL-1066 supported higher rates of normal fertilization and blastocyst development in early but not late maturing MI-MII oocytes. Five micromoles of GSH-OEt significantly increased blastocyst total cell and inner cell mass cell number in early MI-MII oocytes compared with IVO and IVM controls. GSH-OEt significantly increased oocyte GSH content and fertilization in late maturing oocytes but not blastocyst development. CONCLUSION(S): GSH-OEt positively affects the development of early and late maturing IVM oocytes.

Indexed as

Models, AnimalAnimalsBlastocystCells, CulturedCohort StudiesFemaleFertilizationGlutathioneHumansMacaca fascicularisMaleMetaphaseOocyte RetrievalOocytesPrimatesProspective StudiesGlutathione

Identifiers

PMID20667536
PMCPMC2974941
OpenAlexW2103652574

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.