Evidence map›Paper›PMID 23469259›Full record

ArticlePloS one2013

Developmental potential of prepubertal mouse oocytes is compromised due mainly to their impaired synthesis of glutathione.

Guang-Zhong Jiao, Xin-Yan Cao, Wei Cui, Hua-Yu Lian, Yi-Long Miao, Xiu-Fen Wu, Dong Han, Jing-He Tan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
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  8. Current State of In Vitro Embryo Production in African Lion (Animals : an open access journal from MDPI · 2022
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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

8 authors at 1 institution in 1 country.

Guang-Zhong JiaoCollege of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, People's Republic of China.
Xin-Yan Cao
Wei Cui
Hua-Yu Lian
Yi-Long Miao
Xiu-Fen Wu
Dong Han
Jing-He Tan
Shandong Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although oocytes from prepubertal animals are found less competent than oocytes from adults, the underlying mechanisms are poorly understood. Using the mouse oocyte model, this paper has tested the hypothesis that the developmental potential of prepubertal oocytes is compromised due mainly to their impaired potential for glutathione synthesis. Oocytes from prepubertal and adult mice, primed with or without eCG, were matured in vitro and assessed for glutathione synthesis potential, oxidative stress, Ca(2+) reserves, fertilization and in vitro development potential. In unprimed mice, abilities for glutathione synthesis, activation, male pronuclear formation, blastocyst formation, cortical granule migration and polyspermic block were all compromised significantly in prepubertal compared to adult oocytes. Cysteamine and cystine supplementation to maturation medium significantly promoted oocyte glutathione synthesis and blastocyst development but difference due to maternal age remained. Whereas reactive oxygen species (ROS) levels increased, Ca(2+) storage decreased significantly in prepubertal oocytes. Levels of both catalytic and modifier subunits of the γ-glutamylcysteine ligase were significantly lower in prepubertal than in adult oocytes. Maternal eCG priming improved all the parameters and eliminated the age difference. Together, the results have confirmed our hypothesis by showing that prepubertal oocytes have a decreased ability to synthesize glutathione leading to an impaired potential to reduce ROS and to form male pronuclei and blastocysts. The resulting oxidative stress decreases the intracellular Ca(2+) store resulting in impaired activation at fertilization, and damages the microfilament network, which affects cortical granule redistribution leading to polyspermy.

Indexed as

Age FactorsAnimalsBlastocystCalciumCells, CulturedChorionic GonadotropinCulture MediaCysteamineCystineDrug CombinationsEmbryo Culture TechniquesEmbryo, MammalianEmbryonic DevelopmentFemaleFertilization in VitroGlutathioneCalciumChorionic Gonadotropinchorionic gonadotropin, pregnant mare serum gonadotropin drug combinationCulture MediaCysteamineCystineDrug CombinationsGlutathioneGonadotropins, EquineReactive Oxygen Species

Identifiers

PMID23469259
PMCPMC3585726
OpenAlexW2006325596

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.