Evidence map›Paper›PMID 22584025›Full record

ArticleFertility and sterility2012

Strain-specific spontaneous activation during mouse oocyte maturation.

Yong Cheng, Zhisheng Zhong, Keith E Latham

Open access · bronzeAbstract readComparative StudyEvaluation Study
In one paragraph

Article in Fertility and sterility, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.9field-weighted citation impact, top 22% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Review
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  6. Review
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  8. The eggstraordinary story of how life begins.Molecular reproduction and development · 2019
    Review
  9. Review
  10. PLCζ is the physiological trigger of the CaDevelopment (Cambridge, England) · 2017
    Article
  11. 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 1 institution in 1 country.

Yong ChengThe Fels Institute for Cancer Research and Molecular Biology, Temple University Medical School, Philadelphia, Pennsylvania, USA.
Zhisheng Zhong
Keith E Latham
Temple University · US

Funding

Nuclear Reprogramming and Phenotype in Cloned EmbryosR01HD043092 · NICHD · TEMPLE UNIV OF THE COMMONWEALTH · PI LATHAM, KEITH E · 2003 to 2013
$3.0M
Epigenetic Effect of Ooplasm Manipulation on DevelopmentR01RR018907 · NCRR · TEMPLE UNIV OF THE COMMONWEALTH · PI LATHAM, KEITH E · 2004 to 2008
$1.8M
Genetic and Molecular Approach to Identify Ooplasm Reprogramming FactorsRC1HD063371 · NICHD · TEMPLE UNIV OF THE COMMONWEALTH · PI LATHAM, KEITH E · 2009 to 2010
$1.0M
NCRR NIH HHS R01 RR018907NCRR NIH HHS R01RR018907NICHD NIH HHS R01 HD043092NICHD NIH HHS R01HD043092NICHD NIH HHS RC1 HD063371NICHD NIH HHS RC1HD063371
6 · The paper itself

Abstract

objectiveTo examine whether spontaneous oocyte activation is determined by genetic differences and interacts with culture environment.

designExperimental study.

settingTemple University School of Medicine. ANIMAL(S): C57BL/6, DBA/2, C3H/HeJ, and A/J strains, along with reciprocal F1 hybrid female mice (5-6 weeks). INTERVENTION(S): Immature oocytes from different mouse strains collected and cultured in different maturation conditions, including different serum, serum replacement, bovine serum albumin (BSA), and follicle-stimulation hormone (FSH). MAIN OUTCOME MEASURE(S): The emission of first polar body, pronucleus formation, meiotic arrest, spontaneous activation, and expression of maturation regulators. RESULT(S): Oocytes from C57BL/6 mice display a high rate of delayed first meiotic division and spontaneous activation after the first meiotic division with in vitro maturation (IVM), and the second meiotic division with in vivo maturation (VVM) after superovulation. Spontaneous activation with IVM is sensitive to culture environment. Oocytes that spontaneously activated during the first meiotic division with IVM have unusual replicated sister chromatid pairs with slight connections at centromeres at first mitosis, whereas oocytes that activated in vivo display haploidization from the second meiotic division. Spontaneous activation is also seen in F1 hybrid oocytes, indicating a dominant trait from C57BL/6. Delayed meiosis was associated with reduced cyclin B and securin expression. CONCLUSION(S): Both mouse strain and culture environment have a statistically significant effect on the incidence of meiotic defects and spontaneous activation. Reduced expression of meiotic regulators may underlie this effect.

Indexed as

AnimalsCell Culture TechniquesCells, CulturedCellular MicroenvironmentFemaleMeiosisMiceMice, Inbred C3HMice, Inbred C57BLMice, Inbred DBAOocytesOogenesisParthenogenesisSpecies Specificity

Identifiers

PMID22584025
PMCPMC3389194
OpenAlexW1971009133

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.