Evidence map›Paper›PMID 34178146›Full record

ArticleAnimal reproduction2018

Oocyte mitochondria: role on fertility and disease transmission.

Marcos R Chiaratti, Bruna M Garcia, Karen F Carvalho, Carolina H Macabelli, Fernanda Karina da Silva Ribeiro, Amanda F Zangirolamo, Fabiana D Sarapião, Marcelo M Seneda, Flávio V Meirelles, Francisco E G Guimarães and 1 more

Abstract read
In one paragraph

Article in Animal reproduction, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Effect of Endometriosis on Cumulus ATP, Number of Mitochondria and Oocyte Maturity in Cumulus Oocyte Complex in Mice.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2023
    Article
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  15. Mitochondria in reproduction.Clinical and experimental reproductive medicine · 2023
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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

11 authors.

Marcos R ChiarattiDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Bruna M GarciaDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Karen F CarvalhoDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Carolina H MacabelliDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Fernanda Karina da Silva RibeiroDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Amanda F ZangirolamoUniversidade Estadual de Londrina, Londrina, PR, Brazil.
Fabiana D SarapiãoUniversidade Estadual de Londrina, Londrina, PR, Brazil.
Marcelo M SenedaUniversidade Estadual de Londrina, Londrina, PR, Brazil.
Flávio V MeirellesFaculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil.
Francisco E G GuimarãesInstituto de Física de São Carlos, Universidade de São Paulo, SP, Brazil.
Thiago S MachadoDepartamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oocyte mitochondria are increased in number, smaller, and rounder in appearance than mitochondria in somatic cells. Moreover, mitochondrial numbers and activity are narrowly tied with oocyte quality because of the key role of mitochondria to oocyte maturation. During oocyte maturation, mitochondria display great mobility and cluster at specific sites to meet the high energy demand. Conversely, oocyte mitochondria are not required during early oogenesis as coupling with granulosa cells is sufficient to support gamete's needs. In part, this might be explained by the importance of protecting mitochondria from oxidative damage that result in mutations in mitochondrial DNA (mtDNA). Considering mitochondria are transmitted exclusively by the mother, oocytes with mtDNA mutations may lead to diseases in offspring. Thus, to counterbalance mutation expansion, the oocyte has developed specific mechanisms to filter out deleterious mtDNA molecules. Herein, we discuss the role of mitochondria on oocyte developmental potential and recent evidence supporting a purifying filter against deleterious mtDNA mutations in oocytes.

Indexed as

dynamicsfertilitymitochondriamtDNAoocyte

Identifiers

PMID34178146
PMCPMC8202466

What OpenQuestion holds

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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.