Evidence map›Paper›PMID 26966678›Full record

ArticlePeerJ2016

The beneficial effects of cumulus cells and oocyte-cumulus cell gap junctions depends on oocyte maturation and fertilization methods in mice.

Cheng-Jie Zhou, Sha-Na Wu, Jiang-Peng Shen, Dong-Hui Wang, Xiang-Wei Kong, Angeleem Lu, Yan-Jiao Li, Hong-Xia Zhou, Yue-Fang Zhao, Cheng-Guang Liang

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

32 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
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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

10 authors at 1 institution in 1 country.

Cheng-Jie ZhouThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Sha-Na WuThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Jiang-Peng ShenThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Dong-Hui WangThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Xiang-Wei KongThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Angeleem LuThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Yan-Jiao LiThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Hong-Xia ZhouThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Yue-Fang ZhaoThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Cheng-Guang LiangThe Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University , Hohhot, Inner Mongolia , China.
Inner Mongolia University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cumulus cells are a group of closely associated granulosa cells that surround and nourish oocytes. Previous studies have shown that cumulus cells contribute to oocyte maturation and fertilization through gap junction communication. However, it is not known how this gap junction signaling affects in vivo versus in vitro maturation of oocytes, and their subsequent fertilization and embryonic development following insemination. Therefore, in our study, we performed mouse oocyte maturation and insemination using in vivo- or in vitro-matured oocyte-cumulus complexes (OCCs, which retain gap junctions between the cumulus cells and the oocytes), in vitro-matured, denuded oocytes co-cultured with cumulus cells (DCs, which lack gap junctions between the cumulus cells and the oocytes), and in vitro-matured, denuded oocytes without cumulus cells (DOs). Using these models, we were able to analyze the effects of gap junction signaling on oocyte maturation, fertilization, and early embryo development. We found that gap junctions were necessary for both in vivo and in vitro oocyte maturation. In addition, for oocytes matured in vivo, the presence of cumulus cells during insemination improved fertilization and blastocyst formation, and this improvement was strengthened by gap junctions. Moreover, for oocytes matured in vitro, the presence of cumulus cells during insemination improved fertilization, but not blastocyst formation, and this improvement was independent of gap junctions. Our results demonstrate, for the first time, that the beneficial effect of gap junction signaling from cumulus cells depends on oocyte maturation and fertilization methods.

Indexed as

Cumulus cellsEarly embryo developmentFertilizationGap junctionMaturationOocyte

Identifiers

PMID26966678
PMCPMC4782716
OpenAlexW2289928043

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.