Evidence map›Paper›PMID 34245092›Full record

ArticleAging cell2021

Single-oocyte transcriptome analysis reveals aging-associated effects influenced by life stage and calorie restriction.

Tappei Mishina, Namine Tabata, Tetsutaro Hayashi, Mika Yoshimura, Mana Umeda, Masashi Mori, Yayoi Ikawa, Hiroshi Hamada, Itoshi Nikaido, Tomoya S Kitajima

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
6.1field-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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

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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 3 institutions in 1 country.

Tappei MishinaLaboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Namine TabataLaboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Tetsutaro HayashiLaboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Mika YoshimuraLaboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Mana UmedaLaboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Masashi MoriLaboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Yayoi IkawaLaboratory for Organismal Patterning, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Hiroshi HamadaLaboratory for Organismal Patterning, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.
Itoshi NikaidoLaboratory for Bioinformatics Research, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.ORCID 0000-0002-7261-2570
Tomoya S KitajimaLaboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan.ORCID 0000-0002-6486-7143
RIKEN Center for Biosystems Dynamics Research · JPKyoto University · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chromosome segregation errors in oocytes lead to the production of aneuploid eggs, which are the leading cause of pregnancy loss and of several congenital diseases such as Down syndrome. The frequency of chromosome segregation errors in oocytes increases with maternal age, especially at a late stage of reproductive life. How aging at various life stages affects oocytes differently remains poorly understood. In this study, we describe aging-associated changes in the transcriptome profile of mouse oocytes throughout reproductive life. Our single-oocyte comprehensive RNA sequencing using RamDA-seq revealed that oocytes undergo transcriptome changes at a late reproductive stage, whereas their surrounding cumulus cells exhibit transcriptome changes at an earlier stage. Calorie restriction, a paradigm that reportedly prevents aging-associated egg aneuploidy, promotes a transcriptome shift in oocytes with the up-regulation of genes involved in chromosome segregation. This shift is accompanied by the improved maintenance of chromosomal cohesin, the loss of which is a hallmark of oocyte aging and causes chromosome segregation errors. These findings have implications for understanding how oocytes undergo aging-associated functional decline throughout their reproductive life in a context-dependent manner.

Indexed as

AgingAnimalsCaloric RestrictionFemaleGene Expression ProfilingHumansMiceOocytesagingchromosome segregationcohesinoocytetranscriptome

Identifiers

PMID34245092
PMCPMC8373347
OpenAlexW3177510295

What OpenQuestion holds

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LicenceCC BY
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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.